diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index abb325e..78414af 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -426,7 +426,8 @@
 	select UDBG_RTAS_CONSOLE
 
 config UDBG_RTAS_CONSOLE
-	bool
+	bool "RTAS based debug console"
+	depends on PPC_RTAS
 	default n
 
 config XICS
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index d961bfe..afc776f 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -41,6 +41,10 @@
 src-boot := $(addprefix $(obj)/, $(src-boot))
 obj-boot := $(addsuffix .o, $(basename $(src-boot)))
 
+ifeq ($(call cc-option-yn, -fstack-protector),y)
+BOOTCFLAGS	+= -fno-stack-protector
+endif
+
 BOOTCFLAGS	+= -I$(obj) -I$(srctree)/$(obj)
 
 quiet_cmd_copy_zlib = COPY    $@
diff --git a/arch/powerpc/configs/maple_defconfig b/arch/powerpc/configs/maple_defconfig
index 80a0db4..27b18ca 100644
--- a/arch/powerpc/configs/maple_defconfig
+++ b/arch/powerpc/configs/maple_defconfig
@@ -474,7 +474,7 @@
 # CONFIG_SKY2 is not set
 # CONFIG_SK98LIN is not set
 # CONFIG_VIA_VELOCITY is not set
-# CONFIG_TIGON3 is not set
+CONFIG_TIGON3=y
 # CONFIG_BNX2 is not set
 # CONFIG_MV643XX_ETH is not set
 
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 956c2e5..d2ab294 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -16,7 +16,7 @@
 obj-y				+= vdso32/
 obj-$(CONFIG_PPC64)		+= setup_64.o binfmt_elf32.o sys_ppc32.o \
 				   signal_64.o ptrace32.o \
-				   paca.o cpu_setup_power4.o \
+				   paca.o cpu_setup_ppc970.o \
 				   firmware.o sysfs.o
 obj-$(CONFIG_PPC64)		+= vdso64/
 obj-$(CONFIG_ALTIVEC)		+= vecemu.o vector.o
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 7ee8496..c53acd2 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -40,9 +40,9 @@
 #ifdef CONFIG_PPC64
 #include <asm/paca.h>
 #include <asm/lppaca.h>
-#include <asm/iseries/hv_lp_event.h>
 #include <asm/cache.h>
 #include <asm/compat.h>
+#include <asm/mmu.h>
 #endif
 
 #define DEFINE(sym, val) \
@@ -136,11 +136,17 @@
 	DEFINE(PACA_STARTPURR, offsetof(struct paca_struct, startpurr));
 	DEFINE(PACA_USER_TIME, offsetof(struct paca_struct, user_time));
 	DEFINE(PACA_SYSTEM_TIME, offsetof(struct paca_struct, system_time));
+	DEFINE(PACA_SLBSHADOWPTR, offsetof(struct paca_struct, slb_shadow_ptr));
 
+	DEFINE(SLBSHADOW_STACKVSID,
+	       offsetof(struct slb_shadow, save_area[SLB_NUM_BOLTED - 1].vsid));
+	DEFINE(SLBSHADOW_STACKESID,
+	       offsetof(struct slb_shadow, save_area[SLB_NUM_BOLTED - 1].esid));
 	DEFINE(LPPACASRR0, offsetof(struct lppaca, saved_srr0));
 	DEFINE(LPPACASRR1, offsetof(struct lppaca, saved_srr1));
 	DEFINE(LPPACAANYINT, offsetof(struct lppaca, int_dword.any_int));
 	DEFINE(LPPACADECRINT, offsetof(struct lppaca, int_dword.fields.decr_int));
+	DEFINE(SLBSHADOW_SAVEAREA, offsetof(struct slb_shadow, save_area));
 #endif /* CONFIG_PPC64 */
 
 	/* RTAS */
@@ -240,6 +246,7 @@
 	DEFINE(CPU_SPEC_PVR_VALUE, offsetof(struct cpu_spec, pvr_value));
 	DEFINE(CPU_SPEC_FEATURES, offsetof(struct cpu_spec, cpu_features));
 	DEFINE(CPU_SPEC_SETUP, offsetof(struct cpu_spec, cpu_setup));
+	DEFINE(CPU_SPEC_RESTORE, offsetof(struct cpu_spec, cpu_restore));
 
 #ifndef CONFIG_PPC64
 	DEFINE(pbe_address, offsetof(struct pbe, address));
diff --git a/arch/powerpc/kernel/btext.c b/arch/powerpc/kernel/btext.c
index f4e5e14e..995fcef 100644
--- a/arch/powerpc/kernel/btext.c
+++ b/arch/powerpc/kernel/btext.c
@@ -158,35 +158,35 @@
 {
 	unsigned int width, height, depth, pitch;
 	unsigned long address = 0;
-	u32 *prop;
+	const u32 *prop;
 
-	prop = (u32 *)get_property(np, "linux,bootx-width", NULL);
+	prop = get_property(np, "linux,bootx-width", NULL);
 	if (prop == NULL)
-		prop = (u32 *)get_property(np, "width", NULL);
+		prop = get_property(np, "width", NULL);
 	if (prop == NULL)
 		return -EINVAL;
 	width = *prop;
-	prop = (u32 *)get_property(np, "linux,bootx-height", NULL);
+	prop = get_property(np, "linux,bootx-height", NULL);
 	if (prop == NULL)
-		prop = (u32 *)get_property(np, "height", NULL);
+		prop = get_property(np, "height", NULL);
 	if (prop == NULL)
 		return -EINVAL;
 	height = *prop;
-	prop = (u32 *)get_property(np, "linux,bootx-depth", NULL);
+	prop = get_property(np, "linux,bootx-depth", NULL);
 	if (prop == NULL)
-		prop = (u32 *)get_property(np, "depth", NULL);
+		prop = get_property(np, "depth", NULL);
 	if (prop == NULL)
 		return -EINVAL;
 	depth = *prop;
 	pitch = width * ((depth + 7) / 8);
-	prop = (u32 *)get_property(np, "linux,bootx-linebytes", NULL);
+	prop = get_property(np, "linux,bootx-linebytes", NULL);
 	if (prop == NULL)
-		prop = (u32 *)get_property(np, "linebytes", NULL);
+		prop = get_property(np, "linebytes", NULL);
 	if (prop)
 		pitch = *prop;
 	if (pitch == 1)
 		pitch = 0x1000;
-	prop = (u32 *)get_property(np, "address", NULL);
+	prop = get_property(np, "address", NULL);
 	if (prop)
 		address = *prop;
 
@@ -214,11 +214,11 @@
 
 int __init btext_find_display(int allow_nonstdout)
 {
-	char *name;
+	const char *name;
 	struct device_node *np = NULL; 
 	int rc = -ENODEV;
 
-	name = (char *)get_property(of_chosen, "linux,stdout-path", NULL);
+	name = get_property(of_chosen, "linux,stdout-path", NULL);
 	if (name != NULL) {
 		np = of_find_node_by_path(name);
 		if (np != NULL) {
diff --git a/arch/powerpc/kernel/cpu_setup_power4.S b/arch/powerpc/kernel/cpu_setup_ppc970.S
similarity index 73%
rename from arch/powerpc/kernel/cpu_setup_power4.S
rename to arch/powerpc/kernel/cpu_setup_ppc970.S
index 76e97aa..6525948 100644
--- a/arch/powerpc/kernel/cpu_setup_power4.S
+++ b/arch/powerpc/kernel/cpu_setup_ppc970.S
@@ -16,27 +16,12 @@
 #include <asm/asm-offsets.h>
 #include <asm/cache.h>
 
-_GLOBAL(__970_cpu_preinit)
-	/*
-	 * Do nothing if not running in HV mode
-	 */
+_GLOBAL(__cpu_preinit_ppc970)
+	/* Do nothing if not running in HV mode */
 	mfmsr	r0
 	rldicl.	r0,r0,4,63
 	beqlr
 
-	/*
-	 * Deal only with PPC970 and PPC970FX.
-	 */
-	mfspr	r0,SPRN_PVR
-	srwi	r0,r0,16
-	cmpwi	r0,0x39
-	beq	1f
-	cmpwi	r0,0x3c
-	beq	1f
-	cmpwi	r0,0x44
-	bnelr
-1:
-
 	/* Make sure HID4:rm_ci is off before MMU is turned off, that large
 	 * pages are enabled with HID4:61 and clear HID5:DCBZ_size and
 	 * HID5:DCBZ32_ill
@@ -72,23 +57,6 @@
 	isync
 	blr
 
-_GLOBAL(__setup_cpu_ppc970)
-	mfspr	r0,SPRN_HID0
-	li	r11,5			/* clear DOZE and SLEEP */
-	rldimi	r0,r11,52,8		/* set NAP and DPM */
-	li	r11,0
-	rldimi	r0,r11,32,31		/* clear EN_ATTN */
-	mtspr	SPRN_HID0,r0
-	mfspr	r0,SPRN_HID0
-	mfspr	r0,SPRN_HID0
-	mfspr	r0,SPRN_HID0
-	mfspr	r0,SPRN_HID0
-	mfspr	r0,SPRN_HID0
-	mfspr	r0,SPRN_HID0
-	sync
-	isync
-	blr
-
 /* Definitions for the table use to save CPU states */
 #define CS_HID0		0
 #define CS_HID1		8
@@ -103,33 +71,30 @@
 	.balign	L1_CACHE_BYTES,0
 	.text
 
-/* Called in normal context to backup CPU 0 state. This
- * does not include cache settings. This function is also
- * called for machine sleep. This does not include the MMU
- * setup, BATs, etc... but rather the "special" registers
- * like HID0, HID1, HID4, etc...
- */
-_GLOBAL(__save_cpu_setup)
-	/* Some CR fields are volatile, we back it up all */
-	mfcr	r7
 
-	/* Get storage ptr */
-	LOAD_REG_IMMEDIATE(r5,cpu_state_storage)
-
-	/* We only deal with 970 for now */
-	mfspr	r0,SPRN_PVR
-	srwi	r0,r0,16
-	cmpwi	r0,0x39
-	beq	1f
-	cmpwi	r0,0x3c
-	beq	1f
-	cmpwi	r0,0x44
-	bne	2f
-
-1:	/* skip if not running in HV mode */
+_GLOBAL(__setup_cpu_ppc970)
+	/* Do nothing if not running in HV mode */
 	mfmsr	r0
 	rldicl.	r0,r0,4,63
-	beq	2f
+	beqlr
+
+	mfspr	r0,SPRN_HID0
+	li	r11,5			/* clear DOZE and SLEEP */
+	rldimi	r0,r11,52,8		/* set NAP and DPM */
+	li	r11,0
+	rldimi	r0,r11,32,31		/* clear EN_ATTN */
+	mtspr	SPRN_HID0,r0
+	mfspr	r0,SPRN_HID0
+	mfspr	r0,SPRN_HID0
+	mfspr	r0,SPRN_HID0
+	mfspr	r0,SPRN_HID0
+	mfspr	r0,SPRN_HID0
+	mfspr	r0,SPRN_HID0
+	sync
+	isync
+
+	/* Save away cpu state */
+	LOAD_REG_IMMEDIATE(r5,cpu_state_storage)
 
 	/* Save HID0,1,4 and 5 */
 	mfspr	r3,SPRN_HID0
@@ -141,35 +106,19 @@
 	mfspr	r3,SPRN_HID5
 	std	r3,CS_HID5(r5)
 
-2:
-	mtcr	r7
 	blr
 
 /* Called with no MMU context (typically MSR:IR/DR off) to
  * restore CPU state as backed up by the previous
  * function. This does not include cache setting
  */
-_GLOBAL(__restore_cpu_setup)
-	/* Get storage ptr (FIXME when using anton reloc as we
-	 * are running with translation disabled here
-	 */
-	LOAD_REG_IMMEDIATE(r5,cpu_state_storage)
-
-	/* We only deal with 970 for now */
-	mfspr	r0,SPRN_PVR
-	srwi	r0,r0,16
-	cmpwi	r0,0x39
-	beq	1f
-	cmpwi	r0,0x3c
-	beq	1f
-	cmpwi	r0,0x44
-	bnelr
-
-1:	/* skip if not running in HV mode */
+_GLOBAL(__restore_cpu_ppc970)
+	/* Do nothing if not running in HV mode */
 	mfmsr	r0
 	rldicl.	r0,r0,4,63
 	beqlr
 
+	LOAD_REG_IMMEDIATE(r5,cpu_state_storage)
 	/* Before accessing memory, we make sure rm_ci is clear */
 	li	r0,0
 	mfspr	r3,SPRN_HID4
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 272e436..306da4c 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -39,7 +39,10 @@
 extern void __setup_cpu_7410(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_745x(unsigned long offset, struct cpu_spec* spec);
 #endif /* CONFIG_PPC32 */
+#ifdef CONFIG_PPC64
 extern void __setup_cpu_ppc970(unsigned long offset, struct cpu_spec* spec);
+extern void __restore_cpu_ppc970(void);
+#endif /* CONFIG_PPC64 */
 
 /* This table only contains "desktop" CPUs, it need to be filled with embedded
  * ones as well...
@@ -184,6 +187,7 @@
 		.dcache_bsize		= 128,
 		.num_pmcs		= 8,
 		.cpu_setup		= __setup_cpu_ppc970,
+		.cpu_restore		= __restore_cpu_ppc970,
 		.oprofile_cpu_type	= "ppc64/970",
 		.oprofile_type		= PPC_OPROFILE_POWER4,
 		.platform		= "ppc970",
@@ -199,6 +203,7 @@
 		.dcache_bsize		= 128,
 		.num_pmcs		= 8,
 		.cpu_setup		= __setup_cpu_ppc970,
+		.cpu_restore		= __restore_cpu_ppc970,
 		.oprofile_cpu_type	= "ppc64/970",
 		.oprofile_type		= PPC_OPROFILE_POWER4,
 		.platform		= "ppc970",
@@ -214,6 +219,7 @@
 		.dcache_bsize		= 128,
 		.num_pmcs		= 8,
 		.cpu_setup		= __setup_cpu_ppc970,
+		.cpu_restore		= __restore_cpu_ppc970,
 		.oprofile_cpu_type	= "ppc64/970",
 		.oprofile_type		= PPC_OPROFILE_POWER4,
 		.platform		= "ppc970",
diff --git a/arch/powerpc/kernel/crash_dump.c b/arch/powerpc/kernel/crash_dump.c
index 371973b..2f6f5a7 100644
--- a/arch/powerpc/kernel/crash_dump.c
+++ b/arch/powerpc/kernel/crash_dump.c
@@ -80,7 +80,7 @@
 }
 __setup("savemaxmem=", parse_savemaxmem);
 
-/*
+/**
  * copy_oldmem_page - copy one page from "oldmem"
  * @pfn: page frame number to be copied
  * @buf: target memory address for the copy; this can be in kernel address
diff --git a/arch/powerpc/kernel/dma_64.c b/arch/powerpc/kernel/dma_64.c
index 36aaa76..6c168f6 100644
--- a/arch/powerpc/kernel/dma_64.c
+++ b/arch/powerpc/kernel/dma_64.c
@@ -35,10 +35,9 @@
 {
 	struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
 
-	if (dma_ops)
-		return dma_ops->dma_supported(dev, mask);
-	BUG();
-	return 0;
+	BUG_ON(!dma_ops);
+
+	return dma_ops->dma_supported(dev, mask);
 }
 EXPORT_SYMBOL(dma_supported);
 
@@ -66,10 +65,9 @@
 {
 	struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
 
-	if (dma_ops)
-		return dma_ops->alloc_coherent(dev, size, dma_handle, flag);
-	BUG();
-	return NULL;
+	BUG_ON(!dma_ops);
+
+	return dma_ops->alloc_coherent(dev, size, dma_handle, flag);
 }
 EXPORT_SYMBOL(dma_alloc_coherent);
 
@@ -78,10 +76,9 @@
 {
 	struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
 
-	if (dma_ops)
-		dma_ops->free_coherent(dev, size, cpu_addr, dma_handle);
-	else
-		BUG();
+	BUG_ON(!dma_ops);
+
+	dma_ops->free_coherent(dev, size, cpu_addr, dma_handle);
 }
 EXPORT_SYMBOL(dma_free_coherent);
 
@@ -90,10 +87,9 @@
 {
 	struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
 
-	if (dma_ops)
-		return dma_ops->map_single(dev, cpu_addr, size, direction);
-	BUG();
-	return (dma_addr_t)0;
+	BUG_ON(!dma_ops);
+
+	return dma_ops->map_single(dev, cpu_addr, size, direction);
 }
 EXPORT_SYMBOL(dma_map_single);
 
@@ -102,10 +98,9 @@
 {
 	struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
 
-	if (dma_ops)
-		dma_ops->unmap_single(dev, dma_addr, size, direction);
-	else
-		BUG();
+	BUG_ON(!dma_ops);
+
+	dma_ops->unmap_single(dev, dma_addr, size, direction);
 }
 EXPORT_SYMBOL(dma_unmap_single);
 
@@ -115,11 +110,10 @@
 {
 	struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
 
-	if (dma_ops)
-		return dma_ops->map_single(dev,
-				(page_address(page) + offset), size, direction);
-	BUG();
-	return (dma_addr_t)0;
+	BUG_ON(!dma_ops);
+
+	return dma_ops->map_single(dev, page_address(page) + offset, size,
+			direction);
 }
 EXPORT_SYMBOL(dma_map_page);
 
@@ -128,10 +122,9 @@
 {
 	struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
 
-	if (dma_ops)
-		dma_ops->unmap_single(dev, dma_address, size, direction);
-	else
-		BUG();
+	BUG_ON(!dma_ops);
+
+	dma_ops->unmap_single(dev, dma_address, size, direction);
 }
 EXPORT_SYMBOL(dma_unmap_page);
 
@@ -140,10 +133,9 @@
 {
 	struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
 
-	if (dma_ops)
-		return dma_ops->map_sg(dev, sg, nents, direction);
-	BUG();
-	return 0;
+	BUG_ON(!dma_ops);
+
+	return dma_ops->map_sg(dev, sg, nents, direction);
 }
 EXPORT_SYMBOL(dma_map_sg);
 
@@ -152,9 +144,8 @@
 {
 	struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
 
-	if (dma_ops)
-		dma_ops->unmap_sg(dev, sg, nhwentries, direction);
-	else
-		BUG();
+	BUG_ON(!dma_ops);
+
+	dma_ops->unmap_sg(dev, sg, nhwentries, direction);
 }
 EXPORT_SYMBOL(dma_unmap_sg);
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 54d9f5c..2cd872b 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -375,6 +375,14 @@
 	ld	r7,KSP_VSID(r4)	/* Get new stack's VSID */
 	oris	r0,r6,(SLB_ESID_V)@h
 	ori	r0,r0,(SLB_NUM_BOLTED-1)@l
+
+	/* Update the last bolted SLB */
+	ld	r9,PACA_SLBSHADOWPTR(r13)
+	li	r12,0
+	std	r12,SLBSHADOW_STACKESID(r9) /* Clear ESID */
+	std	r7,SLBSHADOW_STACKVSID(r9)  /* Save VSID */
+	std	r0,SLBSHADOW_STACKESID(r9)  /* Save ESID */
+
 	slbie	r6
 	slbie	r6		/* Workaround POWER5 < DD2.1 issue */
 	slbmte	r7,r0
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 6ff3cf5..e9963d9 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -132,7 +132,7 @@
 	bne	100b
 
 #if defined(CONFIG_SMP) || defined(CONFIG_KEXEC)
-	LOAD_REG_IMMEDIATE(r4, .pSeries_secondary_smp_init)
+	LOAD_REG_IMMEDIATE(r4, .generic_secondary_smp_init)
 	mtctr	r4
 	mr	r3,r24
 	bctr
@@ -1484,19 +1484,17 @@
         . = 0x8000
 
 /*
- * On pSeries, secondary processors spin in the following code.
+ * On pSeries and most other platforms, secondary processors spin
+ * in the following code.
  * At entry, r3 = this processor's number (physical cpu id)
  */
-_GLOBAL(pSeries_secondary_smp_init)
+_GLOBAL(generic_secondary_smp_init)
 	mr	r24,r3
 	
 	/* turn on 64-bit mode */
 	bl	.enable_64b_mode
 	isync
 
-	/* Copy some CPU settings from CPU 0 */
-	bl	.__restore_cpu_setup
-
 	/* Set up a paca value for this processor. Since we have the
 	 * physical cpu id in r24, we need to search the pacas to find
 	 * which logical id maps to our physical one.
@@ -1522,15 +1520,28 @@
 					/* start.			 */
 	sync
 
-	/* Create a temp kernel stack for use before relocation is on.	*/
+#ifndef CONFIG_SMP
+	b	3b			/* Never go on non-SMP		 */
+#else
+	cmpwi	0,r23,0
+	beq	3b			/* Loop until told to go	 */
+
+	/* See if we need to call a cpu state restore handler */
+	LOAD_REG_IMMEDIATE(r23, cur_cpu_spec)
+	ld	r23,0(r23)
+	ld	r23,CPU_SPEC_RESTORE(r23)
+	cmpdi	0,r23,0
+	beq	4f
+	ld	r23,0(r23)
+	mtctr	r23
+	bctrl
+
+4:	/* Create a temp kernel stack for use before relocation is on.	*/
 	ld	r1,PACAEMERGSP(r13)
 	subi	r1,r1,STACK_FRAME_OVERHEAD
 
-	cmpwi	0,r23,0
-#ifdef CONFIG_SMP
-	bne	.__secondary_start
+	b	.__secondary_start
 #endif
-	b 	3b			/* Loop until told to go	 */
 
 #ifdef CONFIG_PPC_ISERIES
 _STATIC(__start_initialization_iSeries)
@@ -1611,7 +1622,16 @@
 	bl	.enable_64b_mode
 
 	/* Setup some critical 970 SPRs before switching MMU off */
-	bl	.__970_cpu_preinit
+	mfspr	r0,SPRN_PVR
+	srwi	r0,r0,16
+	cmpwi	r0,0x39		/* 970 */
+	beq	1f
+	cmpwi	r0,0x3c		/* 970FX */
+	beq	1f
+	cmpwi	r0,0x44		/* 970MP */
+	bne	2f
+1:	bl	.__cpu_preinit_ppc970
+2:
 
 	/* Switch off MMU if not already */
 	LOAD_REG_IMMEDIATE(r4, .__after_prom_start - KERNELBASE)
@@ -1782,7 +1802,7 @@
 	isync
 
 	/* Copy some CPU settings from CPU 0 */
-	bl	.__restore_cpu_setup
+	bl	.__restore_cpu_ppc970
 
 	/* pSeries do that early though I don't think we really need it */
 	mfmsr	r3
@@ -1932,12 +1952,6 @@
 	mr	r5,r26
 	bl	.identify_cpu
 
-	/* Save some low level config HIDs of CPU0 to be copied to
-	 * other CPUs later on, or used for suspend/resume
-	 */
-	bl	.__save_cpu_setup
-	sync
-
 	/* Do very early kernel initializations, including initial hash table,
 	 * stab and slb setup before we turn on relocation.	*/
 
diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c
index 68e5ab0..124dbcb 100644
--- a/arch/powerpc/kernel/ibmebus.c
+++ b/arch/powerpc/kernel/ibmebus.c
@@ -167,7 +167,7 @@
 		   NULL);
 
 static struct ibmebus_dev* __devinit ibmebus_register_device_common(
-	struct ibmebus_dev *dev, char *name)
+	struct ibmebus_dev *dev, const char *name)
 {
 	int err = 0;
 
@@ -194,10 +194,10 @@
 	struct device_node *dn)
 {
 	struct ibmebus_dev *dev;
-	char *loc_code;
+	const char *loc_code;
 	int length;
 
-	loc_code = (char *)get_property(dn, "ibm,loc-code", NULL);
+	loc_code = get_property(dn, "ibm,loc-code", NULL);
 	if (!loc_code) {
                 printk(KERN_WARNING "%s: node %s missing 'ibm,loc-code'\n",
 		       __FUNCTION__, dn->name ? dn->name : "<unknown>");
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 7ee6854..fd4ddb8 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -52,6 +52,7 @@
 #include <linux/radix-tree.h>
 #include <linux/mutex.h>
 #include <linux/bootmem.h>
+#include <linux/pci.h>
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
@@ -827,12 +828,14 @@
 	else
 		return -1;
 }
+EXPORT_SYMBOL(pci_enable_msi);
 
 void pci_disable_msi(struct pci_dev * pdev)
 {
 	if (ppc_md.disable_msi)
 		ppc_md.disable_msi(pdev);
 }
+EXPORT_SYMBOL(pci_disable_msi);
 
 void pci_scan_msi_device(struct pci_dev *dev) {}
 int pci_enable_msix(struct pci_dev* dev, struct msix_entry *entries, int nvec) {return -1;}
@@ -840,6 +843,8 @@
 void msi_remove_pci_irq_vectors(struct pci_dev *dev) {}
 void disable_msi_mode(struct pci_dev *dev, int pos, int type) {}
 void pci_no_msi(void) {}
+EXPORT_SYMBOL(pci_enable_msix);
+EXPORT_SYMBOL(pci_disable_msix);
 
 #endif
 
diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index 40a3929..5e6ddfa 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -39,16 +39,17 @@
 				  phys_addr_t taddr, unsigned long irq,
 				  upf_t flags, int irq_check_parent)
 {
-	u32 *clk, *spd, clock = BASE_BAUD * 16;
+	const u32 *clk, *spd;
+	u32 clock = BASE_BAUD * 16;
 	int index;
 
 	/* get clock freq. if present */
-	clk = (u32 *)get_property(np, "clock-frequency", NULL);
+	clk = get_property(np, "clock-frequency", NULL);
 	if (clk && *clk)
 		clock = *clk;
 
 	/* get default speed if present */
-	spd = (u32 *)get_property(np, "current-speed", NULL);
+	spd = get_property(np, "current-speed", NULL);
 
 	/* If we have a location index, then try to use it */
 	if (want_index >= 0 && want_index < MAX_LEGACY_SERIAL_PORTS)
@@ -113,7 +114,7 @@
 				      struct device_node *soc_dev)
 {
 	u64 addr;
-	u32 *addrp;
+	const u32 *addrp;
 	upf_t flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_SHARE_IRQ;
 	struct device_node *tsi = of_get_parent(np);
 
@@ -144,15 +145,15 @@
 static int __init add_legacy_isa_port(struct device_node *np,
 				      struct device_node *isa_brg)
 {
-	u32 *reg;
-	char *typep;
+	const u32 *reg;
+	const char *typep;
 	int index = -1;
 	u64 taddr;
 
 	DBG(" -> add_legacy_isa_port(%s)\n", np->full_name);
 
 	/* Get the ISA port number */
-	reg = (u32 *)get_property(np, "reg", NULL);
+	reg = get_property(np, "reg", NULL);
 	if (reg == NULL)
 		return -1;
 
@@ -163,7 +164,7 @@
 	/* Now look for an "ibm,aix-loc" property that gives us ordering
 	 * if any...
 	 */
-	typep = (char *)get_property(np, "ibm,aix-loc", NULL);
+	typep = get_property(np, "ibm,aix-loc", NULL);
 
 	/* If we have a location index, then use it */
 	if (typep && *typep == 'S')
@@ -188,7 +189,7 @@
 				      struct device_node *pci_dev)
 {
 	u64 addr, base;
-	u32 *addrp;
+	const u32 *addrp;
 	unsigned int flags;
 	int iotype, index = -1, lindex = 0;
 
@@ -227,7 +228,7 @@
 	 * we get to their "reg" property
 	 */
 	if (np != pci_dev) {
-		u32 *reg = (u32 *)get_property(np, "reg", NULL);
+		const u32 *reg = get_property(np, "reg", NULL);
 		if (reg && (*reg < 4))
 			index = lindex = *reg;
 	}
@@ -285,13 +286,13 @@
 void __init find_legacy_serial_ports(void)
 {
 	struct device_node *np, *stdout = NULL;
-	char *path;
+	const char *path;
 	int index;
 
 	DBG(" -> find_legacy_serial_port()\n");
 
 	/* Now find out if one of these is out firmware console */
-	path = (char *)get_property(of_chosen, "linux,stdout-path", NULL);
+	path = get_property(of_chosen, "linux,stdout-path", NULL);
 	if (path != NULL) {
 		stdout = of_find_node_by_path(path);
 		if (stdout)
@@ -491,8 +492,8 @@
 {
 	struct device_node *prom_stdout = NULL;
 	int speed = 0, offset = 0;
-	char *name;
-	u32 *spd;
+	const char *name;
+	const u32 *spd;
 
 	DBG(" -> check_legacy_serial_console()\n");
 
@@ -513,7 +514,7 @@
 	}
 	/* We are getting a weird phandle from OF ... */
 	/* ... So use the full path instead */
-	name = (char *)get_property(of_chosen, "linux,stdout-path", NULL);
+	name = get_property(of_chosen, "linux,stdout-path", NULL);
 	if (name == NULL) {
 		DBG(" no linux,stdout-path !\n");
 		return -ENODEV;
@@ -525,12 +526,12 @@
 	}
 	DBG("stdout is %s\n", prom_stdout->full_name);
 
-	name = (char *)get_property(prom_stdout, "name", NULL);
+	name = get_property(prom_stdout, "name", NULL);
 	if (!name) {
 		DBG(" stdout package has no name !\n");
 		goto not_found;
 	}
-	spd = (u32 *)get_property(prom_stdout, "current-speed", NULL);
+	spd = get_property(prom_stdout, "current-speed", NULL);
 	if (spd)
 		speed = *spd;
 
diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index 23f34da..41c05dc 100644
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -32,7 +32,6 @@
 #include <asm/rtas.h>
 #include <asm/system.h>
 #include <asm/time.h>
-#include <asm/iseries/it_exp_vpd_panel.h>
 #include <asm/prom.h>
 #include <asm/vdso_datapage.h>
 
@@ -183,8 +182,14 @@
 			      unsigned long *resource)
 {
 	unsigned long rc;
-	rc = plpar_hcall_4out(H_GET_PPP, 0, 0, 0, 0, entitled, unallocated,
-			      aggregation, resource);
+	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+	rc = plpar_hcall(H_GET_PPP, retbuf);
+
+	*entitled = retbuf[0];
+	*unallocated = retbuf[1];
+	*aggregation = retbuf[2];
+	*resource = retbuf[3];
 
 	log_plpar_hcall_return(rc, "H_GET_PPP");
 
@@ -194,8 +199,12 @@
 static void h_pic(unsigned long *pool_idle_time, unsigned long *num_procs)
 {
 	unsigned long rc;
-	unsigned long dummy;
-	rc = plpar_hcall(H_PIC, 0, 0, 0, 0, pool_idle_time, num_procs, &dummy);
+	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+	rc = plpar_hcall(H_PIC, retbuf);
+
+	*pool_idle_time = retbuf[0];
+	*num_procs = retbuf[1];
 
 	if (rc != H_AUTHORITY)
 		log_plpar_hcall_return(rc, "H_PIC");
@@ -310,12 +319,11 @@
 	int partition_potential_processors;
 	int partition_active_processors;
 	struct device_node *rtas_node;
-	int *lrdrp = NULL;
+	const int *lrdrp = NULL;
 
 	rtas_node = find_path_device("/rtas");
 	if (rtas_node)
-		lrdrp = (int *)get_property(rtas_node, "ibm,lrdr-capacity",
-		                            NULL);
+		lrdrp = get_property(rtas_node, "ibm,lrdr-capacity", NULL);
 
 	if (lrdrp == NULL) {
 		partition_potential_processors = vdso_data->processorCount;
@@ -520,7 +528,8 @@
 	const char *model = "";
 	const char *system_id = "";
 	const char *tmp;
-	unsigned int *lp_index_ptr, lp_index = 0;
+	const unsigned int *lp_index_ptr;
+	unsigned int lp_index = 0;
 
 	seq_printf(m, "%s %s \n", MODULE_NAME, MODULE_VERS);
 
@@ -540,8 +549,7 @@
 			if (firmware_has_feature(FW_FEATURE_ISERIES))
 				system_id += 4;
 		}
-		lp_index_ptr = (unsigned int *)
-			get_property(rootdn, "ibm,partition-no", NULL);
+		lp_index_ptr = get_property(rootdn, "ibm,partition-no", NULL);
 		if (lp_index_ptr)
 			lp_index = *lp_index_ptr;
 	}
diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c
index be58985..a24b09c 100644
--- a/arch/powerpc/kernel/machine_kexec_64.c
+++ b/arch/powerpc/kernel/machine_kexec_64.c
@@ -31,8 +31,8 @@
 	unsigned long begin, end;	/* limits of segment */
 	unsigned long low, high;	/* limits of blocked memory range */
 	struct device_node *node;
-	unsigned long *basep;
-	unsigned int *sizep;
+	const unsigned long *basep;
+	const unsigned int *sizep;
 
 	if (!ppc_md.hpte_clear_all)
 		return -ENOENT;
@@ -72,10 +72,8 @@
 	/* We also should not overwrite the tce tables */
 	for (node = of_find_node_by_type(NULL, "pci"); node != NULL;
 			node = of_find_node_by_type(node, "pci")) {
-		basep = (unsigned long *)get_property(node, "linux,tce-base",
-							NULL);
-		sizep = (unsigned int *)get_property(node, "linux,tce-size",
-							NULL);
+		basep = get_property(node, "linux,tce-base", NULL);
+		sizep = get_property(node, "linux,tce-size", NULL);
 		if (basep == NULL || sizep == NULL)
 			continue;
 
diff --git a/arch/powerpc/kernel/of_device.c b/arch/powerpc/kernel/of_device.c
index 3262b73..397c83e 100644
--- a/arch/powerpc/kernel/of_device.c
+++ b/arch/powerpc/kernel/of_device.c
@@ -189,27 +189,9 @@
 int of_device_register(struct of_device *ofdev)
 {
 	int rc;
-	struct of_device **odprop;
 
 	BUG_ON(ofdev->node == NULL);
 
-	odprop = (struct of_device **)get_property(ofdev->node, "linux,device", NULL);
-	if (!odprop) {
-		struct property *new_prop;
-	
-		new_prop = kmalloc(sizeof(struct property) + sizeof(struct of_device *),
-			GFP_KERNEL);
-		if (new_prop == NULL)
-			return -ENOMEM;
-		new_prop->name = "linux,device";
-		new_prop->length = sizeof(sizeof(struct of_device *));
-		new_prop->value = (unsigned char *)&new_prop[1];
-		odprop = (struct of_device **)new_prop->value;
-		*odprop = NULL;
-		prom_add_property(ofdev->node, new_prop);
-	}
-	*odprop = ofdev;
-
 	rc = device_register(&ofdev->dev);
 	if (rc)
 		return rc;
@@ -221,14 +203,8 @@
 
 void of_device_unregister(struct of_device *ofdev)
 {
-	struct of_device **odprop;
-
 	device_remove_file(&ofdev->dev, &dev_attr_devspec);
 
-	odprop = (struct of_device **)get_property(ofdev->node, "linux,device", NULL);
-	if (odprop)
-		*odprop = NULL;
-
 	device_unregister(&ofdev->dev);
 }
 
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
index c68741f..55f1a25 100644
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -17,6 +17,7 @@
 #include <asm/lppaca.h>
 #include <asm/iseries/it_lp_reg_save.h>
 #include <asm/paca.h>
+#include <asm/mmu.h>
 
 
 /* This symbol is provided by the linker - let it fill in the paca
@@ -45,6 +46,17 @@
 	},
 };
 
+/*
+ * 3 persistent SLBs are registered here.  The buffer will be zero
+ * initially, hence will all be invaild until we actually write them.
+ */
+struct slb_shadow slb_shadow[] __cacheline_aligned = {
+	[0 ... (NR_CPUS-1)] = {
+		.persistent = SLB_NUM_BOLTED,
+		.buffer_length = sizeof(struct slb_shadow),
+	},
+};
+
 /* The Paca is an array with one entry per processor.  Each contains an
  * lppaca, which contains the information shared between the
  * hypervisor and Linux.
@@ -59,7 +71,8 @@
 	.lock_token = 0x8000,						    \
 	.paca_index = (number),		/* Paca Index */		    \
 	.kernel_toc = (unsigned long)(&__toc_start) + 0x8000UL,		    \
-	.hw_cpu_id = 0xffff,
+	.hw_cpu_id = 0xffff,						    \
+	.slb_shadow_ptr = &slb_shadow[number],
 
 #ifdef CONFIG_PPC_ISERIES
 #define PACA_INIT_ISERIES(number)					    \
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index 09b1e1b..9b49f86 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -633,12 +633,12 @@
 static void
 make_one_node_map(struct device_node* node, u8 pci_bus)
 {
-	int *bus_range;
+	const int *bus_range;
 	int len;
 
 	if (pci_bus >= pci_bus_count)
 		return;
-	bus_range = (int *) get_property(node, "bus-range", &len);
+	bus_range = get_property(node, "bus-range", &len);
 	if (bus_range == NULL || len < 2 * sizeof(int)) {
 		printk(KERN_WARNING "Can't get bus-range for %s, "
 		       "assuming it starts at 0\n", node->full_name);
@@ -648,13 +648,13 @@
 
 	for (node=node->child; node != 0;node = node->sibling) {
 		struct pci_dev* dev;
-		unsigned int *class_code, *reg;
+		const unsigned int *class_code, *reg;
 	
-		class_code = (unsigned int *) get_property(node, "class-code", NULL);
+		class_code = get_property(node, "class-code", NULL);
 		if (!class_code || ((*class_code >> 8) != PCI_CLASS_BRIDGE_PCI &&
 			(*class_code >> 8) != PCI_CLASS_BRIDGE_CARDBUS))
 			continue;
-		reg = (unsigned int *)get_property(node, "reg", NULL);
+		reg = get_property(node, "reg", NULL);
 		if (!reg)
 			continue;
 		dev = pci_find_slot(pci_bus, ((reg[0] >> 8) & 0xff));
@@ -669,7 +669,7 @@
 {
 	int i;
 	struct pci_controller* hose;
-	u8* of_prop_map;
+	struct property *map_prop;
 
 	pci_to_OF_bus_map = (u8*)kmalloc(pci_bus_count, GFP_KERNEL);
 	if (!pci_to_OF_bus_map) {
@@ -691,9 +691,12 @@
 			continue;
 		make_one_node_map(node, hose->first_busno);
 	}
-	of_prop_map = get_property(find_path_device("/"), "pci-OF-bus-map", NULL);
-	if (of_prop_map)
-		memcpy(of_prop_map, pci_to_OF_bus_map, pci_bus_count);
+	map_prop = of_find_property(find_path_device("/"),
+			"pci-OF-bus-map", NULL);
+	if (map_prop) {
+		BUG_ON(pci_bus_count > map_prop->length);
+		memcpy(map_prop->value, pci_to_OF_bus_map, pci_bus_count);
+	}
 #ifdef DEBUG
 	printk("PCI->OF bus map:\n");
 	for (i=0; i<pci_bus_count; i++) {
@@ -712,7 +715,7 @@
 	struct device_node* sub_node;
 
 	for (; node != 0;node = node->sibling) {
-		unsigned int *class_code;
+		const unsigned int *class_code;
 	
 		if (filter(node, data))
 			return node;
@@ -722,7 +725,7 @@
 		 * a fake root for all functions of a multi-function device,
 		 * we go down them as well.
 		 */
-		class_code = (unsigned int *) get_property(node, "class-code", NULL);
+		class_code = get_property(node, "class-code", NULL);
 		if ((!class_code || ((*class_code >> 8) != PCI_CLASS_BRIDGE_PCI &&
 			(*class_code >> 8) != PCI_CLASS_BRIDGE_CARDBUS)) &&
 			strcmp(node->name, "multifunc-device"))
@@ -737,10 +740,10 @@
 static int
 scan_OF_pci_childs_iterator(struct device_node* node, void* data)
 {
-	unsigned int *reg;
+	const unsigned int *reg;
 	u8* fdata = (u8*)data;
 	
-	reg = (unsigned int *) get_property(node, "reg", NULL);
+	reg = get_property(node, "reg", NULL);
 	if (reg && ((reg[0] >> 8) & 0xff) == fdata[1]
 		&& ((reg[0] >> 16) & 0xff) == fdata[0])
 		return 1;
@@ -841,7 +844,7 @@
 int
 pci_device_from_OF_node(struct device_node* node, u8* bus, u8* devfn)
 {
-	unsigned int *reg;
+	const unsigned int *reg;
 	struct pci_controller* hose;
 	struct pci_dev* dev = NULL;
 	
@@ -854,7 +857,7 @@
 	if (!scan_OF_pci_childs(((struct device_node*)hose->arch_data)->child,
 			find_OF_pci_device_filter, (void *)node))
 		return -ENODEV;
-	reg = (unsigned int *) get_property(node, "reg", NULL);
+	reg = get_property(node, "reg", NULL);
 	if (!reg)
 		return -ENODEV;
 	*bus = (reg[0] >> 16) & 0xff;
@@ -885,8 +888,8 @@
 			   struct device_node *dev, int primary)
 {
 	static unsigned int static_lc_ranges[256] __initdata;
-	unsigned int *dt_ranges, *lc_ranges, *ranges, *prev;
-	unsigned int size;
+	const unsigned int *dt_ranges;
+	unsigned int *lc_ranges, *ranges, *prev, size;
 	int rlen = 0, orig_rlen;
 	int memno = 0;
 	struct resource *res;
@@ -897,7 +900,7 @@
 	 * that can have more than 3 ranges, fortunately using contiguous
 	 * addresses -- BenH
 	 */
-	dt_ranges = (unsigned int *) get_property(dev, "ranges", &rlen);
+	dt_ranges = get_property(dev, "ranges", &rlen);
 	if (!dt_ranges)
 		return;
 	/* Sanity check, though hopefully that never happens */
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 2fce773..d51be7c 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -185,34 +185,6 @@
 	spin_unlock(&hose_spinlock);
 }
 
-static void add_linux_pci_domain(struct device_node *dev,
-				 struct pci_controller *phb)
-{
-	struct property *of_prop;
-	unsigned int size;
-
-	of_prop = (struct property *)
-		get_property(dev, "linux,pci-domain", &size);
-	if (of_prop != NULL)
-		return;
-	WARN_ON(of_prop && size < sizeof(int));
-	if (of_prop && size < sizeof(int))
-		of_prop = NULL;
-	size = sizeof(struct property) + sizeof(int);
-	if (of_prop == NULL) {
-		if (mem_init_done)
-			of_prop = kmalloc(size, GFP_KERNEL);
-		else
-			of_prop = alloc_bootmem(size);
-	}
-	memset(of_prop, 0, sizeof(struct property));
-	of_prop->name = "linux,pci-domain";
-	of_prop->length = sizeof(int);
-	of_prop->value = (unsigned char *)&of_prop[1];
-	*((int *)of_prop->value) = phb->global_number;
-	prom_add_property(dev, of_prop);
-}
-
 struct pci_controller * pcibios_alloc_controller(struct device_node *dev)
 {
 	struct pci_controller *phb;
@@ -226,22 +198,13 @@
 	pci_setup_pci_controller(phb);
 	phb->arch_data = dev;
 	phb->is_dynamic = mem_init_done;
-	if (dev) {
+	if (dev)
 		PHB_SET_NODE(phb, of_node_to_nid(dev));
-		add_linux_pci_domain(dev, phb);
-	}
 	return phb;
 }
 
 void pcibios_free_controller(struct pci_controller *phb)
 {
-	if (phb->arch_data) {
-		struct device_node *np = phb->arch_data;
-		int *domain = (int *)get_property(np,
-						  "linux,pci-domain", NULL);
-		if (domain)
-			*domain = -1;
-	}
 	if (phb->is_dynamic)
 		kfree(phb);
 }
@@ -283,10 +246,10 @@
 #ifdef CONFIG_PPC_MULTIPLATFORM
 static u32 get_int_prop(struct device_node *np, const char *name, u32 def)
 {
-	u32 *prop;
+	const u32 *prop;
 	int len;
 
-	prop = (u32 *) get_property(np, name, &len);
+	prop = get_property(np, name, &len);
 	if (prop && len >= 4)
 		return *prop;
 	return def;
@@ -315,10 +278,11 @@
 	u64 base, size;
 	unsigned int flags;
 	struct resource *res;
-	u32 *addrs, i;
+	const u32 *addrs;
+	u32 i;
 	int proplen;
 
-	addrs = (u32 *) get_property(node, "assigned-addresses", &proplen);
+	addrs = get_property(node, "assigned-addresses", &proplen);
 	if (!addrs)
 		return;
 	DBG("    parse addresses (%d bytes) @ %p\n", proplen, addrs);
@@ -418,7 +382,7 @@
 				  struct pci_bus *bus)
 {
 	struct device_node *child = NULL;
-	u32 *reg;
+	const u32 *reg;
 	int reglen, devfn;
 	struct pci_dev *dev;
 
@@ -426,7 +390,7 @@
 
 	while ((child = of_get_next_child(node, child)) != NULL) {
 		DBG("  * %s\n", child->full_name);
-		reg = (u32 *) get_property(child, "reg", &reglen);
+		reg = get_property(child, "reg", &reglen);
 		if (reg == NULL || reglen < 20)
 			continue;
 		devfn = (reg[0] >> 8) & 0xff;
@@ -450,7 +414,7 @@
 			 	struct pci_dev *dev)
 {
 	struct pci_bus *bus;
-	u32 *busrange, *ranges;
+	const u32 *busrange, *ranges;
 	int len, i, mode;
 	struct resource *res;
 	unsigned int flags;
@@ -459,13 +423,13 @@
 	DBG("of_scan_pci_bridge(%s)\n", node->full_name);
 
 	/* parse bus-range property */
-	busrange = (u32 *) get_property(node, "bus-range", &len);
+	busrange = get_property(node, "bus-range", &len);
 	if (busrange == NULL || len != 8) {
 		printk(KERN_DEBUG "Can't get bus-range for PCI-PCI bridge %s\n",
 		       node->full_name);
 		return;
 	}
-	ranges = (u32 *) get_property(node, "ranges", &len);
+	ranges = get_property(node, "ranges", &len);
 	if (ranges == NULL) {
 		printk(KERN_DEBUG "Can't get ranges for PCI-PCI bridge %s\n",
 		       node->full_name);
@@ -929,13 +893,13 @@
 		unsigned int size;
 	};
 
-	struct isa_range *range;
+	const struct isa_range *range;
 	unsigned long pci_addr;
 	unsigned int isa_addr;
 	unsigned int size;
 	int rlen = 0;
 
-	range = (struct isa_range *) get_property(isa_node, "ranges", &rlen);
+	range = get_property(isa_node, "ranges", &rlen);
 	if (range == NULL || (rlen < sizeof(struct isa_range))) {
 		printk(KERN_ERR "no ISA ranges or unexpected isa range size,"
 		       "mapping 64k\n");
@@ -976,7 +940,8 @@
 void __devinit pci_process_bridge_OF_ranges(struct pci_controller *hose,
 					    struct device_node *dev, int prim)
 {
-	unsigned int *ranges, pci_space;
+	const unsigned int *ranges;
+	unsigned int pci_space;
 	unsigned long size;
 	int rlen = 0;
 	int memno = 0;
@@ -994,7 +959,7 @@
 	 *			(size depending on dev->n_addr_cells)
 	 *   cells 4+5 or 5+6:	the size of the range
 	 */
-	ranges = (unsigned int *) get_property(dev, "ranges", &rlen);
+	ranges = get_property(dev, "ranges", &rlen);
 	if (ranges == NULL)
 		return;
 	hose->io_base_phys = 0;
diff --git a/arch/powerpc/kernel/pci_dn.c b/arch/powerpc/kernel/pci_dn.c
index 1c18953..68df018 100644
--- a/arch/powerpc/kernel/pci_dn.c
+++ b/arch/powerpc/kernel/pci_dn.c
@@ -40,8 +40,8 @@
 static void * __devinit update_dn_pci_info(struct device_node *dn, void *data)
 {
 	struct pci_controller *phb = data;
-	int *type = (int *)get_property(dn, "ibm,pci-config-space-type", NULL);
-	u32 *regs;
+	const int *type = get_property(dn, "ibm,pci-config-space-type", NULL);
+	const u32 *regs;
 	struct pci_dn *pdn;
 
 	if (mem_init_done)
@@ -54,14 +54,14 @@
 	dn->data = pdn;
 	pdn->node = dn;
 	pdn->phb = phb;
-	regs = (u32 *)get_property(dn, "reg", NULL);
+	regs = get_property(dn, "reg", NULL);
 	if (regs) {
 		/* First register entry is addr (00BBSS00)  */
 		pdn->busno = (regs[0] >> 16) & 0xff;
 		pdn->devfn = (regs[0] >> 8) & 0xff;
 	}
 	if (firmware_has_feature(FW_FEATURE_ISERIES)) {
-		u32 *busp = (u32 *)get_property(dn, "linux,subbus", NULL);
+		const u32 *busp = get_property(dn, "linux,subbus", NULL);
 		if (busp)
 			pdn->bussubno = *busp;
 	}
@@ -96,10 +96,11 @@
 
 	/* We started with a phb, iterate all childs */
 	for (dn = start->child; dn; dn = nextdn) {
-		u32 *classp, class;
+		const u32 *classp;
+		u32 class;
 
 		nextdn = NULL;
-		classp = (u32 *)get_property(dn, "class-code", NULL);
+		classp = get_property(dn, "class-code", NULL);
 		class = classp ? *classp : 0;
 
 		if (pre && ((ret = pre(dn, data)) != NULL))
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index a1787ff..bf2005b 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -942,11 +942,11 @@
 int
 prom_n_addr_cells(struct device_node* np)
 {
-	int* ip;
+	const int *ip;
 	do {
 		if (np->parent)
 			np = np->parent;
-		ip = (int *) get_property(np, "#address-cells", NULL);
+		ip = get_property(np, "#address-cells", NULL);
 		if (ip != NULL)
 			return *ip;
 	} while (np->parent);
@@ -958,11 +958,11 @@
 int
 prom_n_size_cells(struct device_node* np)
 {
-	int* ip;
+	const int* ip;
 	do {
 		if (np->parent)
 			np = np->parent;
-		ip = (int *) get_property(np, "#size-cells", NULL);
+		ip = get_property(np, "#size-cells", NULL);
 		if (ip != NULL)
 			return *ip;
 	} while (np->parent);
@@ -1034,7 +1034,7 @@
 	const char* cp;
 	int cplen, l;
 
-	cp = (char *) get_property(device, "compatible", &cplen);
+	cp = get_property(device, "compatible", &cplen);
 	if (cp == NULL)
 		return 0;
 	while (cplen > 0) {
@@ -1449,7 +1449,7 @@
 {
 	struct device_node *parent = of_get_parent(node);
 	int err = 0;
-	phandle *ibm_phandle;
+	const phandle *ibm_phandle;
 
 	node->name = get_property(node, "name", NULL);
 	node->type = get_property(node, "device_type", NULL);
@@ -1466,8 +1466,7 @@
 		return -ENODEV;
 
 	/* fix up new node's linux_phandle field */
-	if ((ibm_phandle = (unsigned int *)get_property(node,
-							"ibm,phandle", NULL)))
+	if ((ibm_phandle = get_property(node, "ibm,phandle", NULL)))
 		node->linux_phandle = *ibm_phandle;
 
 out:
@@ -1528,7 +1527,7 @@
  * Find a property with a given name for a given node
  * and return the value.
  */
-void *get_property(struct device_node *np, const char *name, int *lenp)
+const void *get_property(struct device_node *np, const char *name, int *lenp)
 {
 	struct property *pp = of_find_property(np,name,lenp);
 	return pp ? pp->value : NULL;
@@ -1658,16 +1657,16 @@
 	hardid = get_hard_smp_processor_id(cpu);
 
 	for_each_node_by_type(np, "cpu") {
-		u32 *intserv;
+		const u32 *intserv;
 		unsigned int plen, t;
 
 		/* Check for ibm,ppc-interrupt-server#s. If it doesn't exist
 		 * fallback to "reg" property and assume no threads
 		 */
-		intserv = (u32 *)get_property(np, "ibm,ppc-interrupt-server#s",
-					      &plen);
+		intserv = get_property(np, "ibm,ppc-interrupt-server#s",
+				&plen);
 		if (intserv == NULL) {
-			u32 *reg = (u32 *)get_property(np, "reg", NULL);
+			const u32 *reg = get_property(np, "reg", NULL);
 			if (reg == NULL)
 				continue;
 			if (*reg == hardid) {
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 462bced..90972ef 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -2033,16 +2033,22 @@
 #endif
 
 #ifdef CONFIG_PPC_CHRP
-/* Pegasos lacks the "ranges" property in the isa node */
+/* Pegasos and BriQ lacks the "ranges" property in the isa node */
 static void __init fixup_device_tree_chrp(void)
 {
 	phandle isa;
 	u32 isa_ranges[6];
+	u32 rloc = 0x01006000; /* IO space; PCI device = 12 */
 	char *name;
 	int rc;
 
 	name = "/pci@80000000/isa@c";
 	isa = call_prom("finddevice", 1, 1, ADDR(name));
+	if (!PHANDLE_VALID(isa)) {
+		name = "/pci@ff500000/isa@6";
+		isa = call_prom("finddevice", 1, 1, ADDR(name));
+		rloc = 0x01003000; /* IO space; PCI device = 6 */
+	}
 	if (!PHANDLE_VALID(isa))
 		return;
 
@@ -2054,7 +2060,7 @@
 
 	isa_ranges[0] = 0x1;
 	isa_ranges[1] = 0x0;
-	isa_ranges[2] = 0x01006000;
+	isa_ranges[2] = rloc;
 	isa_ranges[3] = 0x0;
 	isa_ranges[4] = 0x0;
 	isa_ranges[5] = 0x00010000;
diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c
index 11052c2..6032032 100644
--- a/arch/powerpc/kernel/prom_parse.c
+++ b/arch/powerpc/kernel/prom_parse.c
@@ -27,7 +27,7 @@
 
 /* Debug utility */
 #ifdef DEBUG
-static void of_dump_addr(const char *s, u32 *addr, int na)
+static void of_dump_addr(const char *s, const u32 *addr, int na)
 {
 	printk("%s", s);
 	while(na--)
@@ -35,7 +35,7 @@
 	printk("\n");
 }
 #else
-static void of_dump_addr(const char *s, u32 *addr, int na) { }
+static void of_dump_addr(const char *s, const u32 *addr, int na) { }
 #endif
 
 
@@ -46,9 +46,10 @@
 	int		(*match)(struct device_node *parent);
 	void		(*count_cells)(struct device_node *child,
 				       int *addrc, int *sizec);
-	u64		(*map)(u32 *addr, u32 *range, int na, int ns, int pna);
+	u64		(*map)(u32 *addr, const u32 *range,
+				int na, int ns, int pna);
 	int		(*translate)(u32 *addr, u64 offset, int na);
-	unsigned int	(*get_flags)(u32 *addr);
+	unsigned int	(*get_flags)(const u32 *addr);
 };
 
 
@@ -65,7 +66,8 @@
 		*sizec = prom_n_size_cells(dev);
 }
 
-static u64 of_bus_default_map(u32 *addr, u32 *range, int na, int ns, int pna)
+static u64 of_bus_default_map(u32 *addr, const u32 *range,
+		int na, int ns, int pna)
 {
 	u64 cp, s, da;
 
@@ -93,7 +95,7 @@
 	return 0;
 }
 
-static unsigned int of_bus_default_get_flags(u32 *addr)
+static unsigned int of_bus_default_get_flags(const u32 *addr)
 {
 	return IORESOURCE_MEM;
 }
@@ -118,7 +120,7 @@
 		*sizec = 2;
 }
 
-static u64 of_bus_pci_map(u32 *addr, u32 *range, int na, int ns, int pna)
+static u64 of_bus_pci_map(u32 *addr, const u32 *range, int na, int ns, int pna)
 {
 	u64 cp, s, da;
 
@@ -143,7 +145,7 @@
 	return of_bus_default_translate(addr + 1, offset, na - 1);
 }
 
-static unsigned int of_bus_pci_get_flags(u32 *addr)
+static unsigned int of_bus_pci_get_flags(const u32 *addr)
 {
 	unsigned int flags = 0;
 	u32 w = addr[0];
@@ -178,7 +180,7 @@
 		*sizec = 1;
 }
 
-static u64 of_bus_isa_map(u32 *addr, u32 *range, int na, int ns, int pna)
+static u64 of_bus_isa_map(u32 *addr, const u32 *range, int na, int ns, int pna)
 {
 	u64 cp, s, da;
 
@@ -203,7 +205,7 @@
 	return of_bus_default_translate(addr + 1, offset, na - 1);
 }
 
-static unsigned int of_bus_isa_get_flags(u32 *addr)
+static unsigned int of_bus_isa_get_flags(const u32 *addr)
 {
 	unsigned int flags = 0;
 	u32 w = addr[0];
@@ -268,7 +270,7 @@
 			    struct of_bus *pbus, u32 *addr,
 			    int na, int ns, int pna)
 {
-	u32 *ranges;
+	const u32 *ranges;
 	unsigned int rlen;
 	int rone;
 	u64 offset = OF_BAD_ADDR;
@@ -285,7 +287,7 @@
 	 * to translate addresses that aren't supposed to be translated in
 	 * the first place. --BenH.
 	 */
-	ranges = (u32 *)get_property(parent, "ranges", &rlen);
+	ranges = get_property(parent, "ranges", &rlen);
 	if (ranges == NULL || rlen == 0) {
 		offset = of_read_number(addr, na);
 		memset(addr, 0, pna * 4);
@@ -328,7 +330,7 @@
  * that can be mapped to a cpu physical address). This is not really specified
  * that way, but this is traditionally the way IBM at least do things
  */
-u64 of_translate_address(struct device_node *dev, u32 *in_addr)
+u64 of_translate_address(struct device_node *dev, const u32 *in_addr)
 {
 	struct device_node *parent = NULL;
 	struct of_bus *bus, *pbus;
@@ -405,10 +407,10 @@
 }
 EXPORT_SYMBOL(of_translate_address);
 
-u32 *of_get_address(struct device_node *dev, int index, u64 *size,
+const u32 *of_get_address(struct device_node *dev, int index, u64 *size,
 		    unsigned int *flags)
 {
-	u32 *prop;
+	const u32 *prop;
 	unsigned int psize;
 	struct device_node *parent;
 	struct of_bus *bus;
@@ -425,7 +427,7 @@
 		return NULL;
 
 	/* Get "reg" or "assigned-addresses" property */
-	prop = (u32 *)get_property(dev, bus->addresses, &psize);
+	prop = get_property(dev, bus->addresses, &psize);
 	if (prop == NULL)
 		return NULL;
 	psize /= 4;
@@ -443,10 +445,10 @@
 }
 EXPORT_SYMBOL(of_get_address);
 
-u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size,
+const u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size,
 			unsigned int *flags)
 {
-	u32 *prop;
+	const u32 *prop;
 	unsigned int psize;
 	struct device_node *parent;
 	struct of_bus *bus;
@@ -467,7 +469,7 @@
 		return NULL;
 
 	/* Get "reg" or "assigned-addresses" property */
-	prop = (u32 *)get_property(dev, bus->addresses, &psize);
+	prop = get_property(dev, bus->addresses, &psize);
 	if (prop == NULL)
 		return NULL;
 	psize /= 4;
@@ -485,7 +487,7 @@
 }
 EXPORT_SYMBOL(of_get_pci_address);
 
-static int __of_address_to_resource(struct device_node *dev, u32 *addrp,
+static int __of_address_to_resource(struct device_node *dev, const u32 *addrp,
 				    u64 size, unsigned int flags,
 				    struct resource *r)
 {
@@ -516,7 +518,7 @@
 int of_address_to_resource(struct device_node *dev, int index,
 			   struct resource *r)
 {
-	u32		*addrp;
+	const u32	*addrp;
 	u64		size;
 	unsigned int	flags;
 
@@ -530,7 +532,7 @@
 int of_pci_address_to_resource(struct device_node *dev, int bar,
 			       struct resource *r)
 {
-	u32		*addrp;
+	const u32	*addrp;
 	u64		size;
 	unsigned int	flags;
 
@@ -541,13 +543,14 @@
 }
 EXPORT_SYMBOL_GPL(of_pci_address_to_resource);
 
-void of_parse_dma_window(struct device_node *dn, unsigned char *dma_window_prop,
+void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
 		unsigned long *busno, unsigned long *phys, unsigned long *size)
 {
-	u32 *dma_window, cells;
-	unsigned char *prop;
+	const u32 *dma_window;
+	u32 cells;
+	const unsigned char *prop;
 
-	dma_window = (u32 *)dma_window_prop;
+	dma_window = dma_window_prop;
 
 	/* busno is always one cell */
 	*busno = *(dma_window++);
@@ -576,13 +579,13 @@
 static struct device_node *of_irq_find_parent(struct device_node *child)
 {
 	struct device_node *p;
-	phandle *parp;
+	const phandle *parp;
 
 	if (!of_node_get(child))
 		return NULL;
 
 	do {
-		parp = (phandle *)get_property(child, "interrupt-parent", NULL);
+		parp = get_property(child, "interrupt-parent", NULL);
 		if (parp == NULL)
 			p = of_get_parent(child);
 		else {
@@ -639,11 +642,11 @@
 
 }
 
-int of_irq_map_raw(struct device_node *parent, u32 *intspec, u32 *addr,
-		   struct of_irq *out_irq)
+int of_irq_map_raw(struct device_node *parent, const u32 *intspec,
+		const u32 *addr, struct of_irq *out_irq)
 {
 	struct device_node *ipar, *tnode, *old = NULL, *newpar = NULL;
-	u32 *tmp, *imap, *imask;
+	const u32 *tmp, *imap, *imask;
 	u32 intsize = 1, addrsize, newintsize = 0, newaddrsize = 0;
 	int imaplen, match, i;
 
@@ -654,7 +657,7 @@
 	 * is none, we are nice and just walk up the tree
 	 */
 	do {
-		tmp = (u32 *)get_property(ipar, "#interrupt-cells", NULL);
+		tmp = get_property(ipar, "#interrupt-cells", NULL);
 		if (tmp != NULL) {
 			intsize = *tmp;
 			break;
@@ -675,7 +678,7 @@
 	 */
 	old = of_node_get(ipar);
 	do {
-		tmp = (u32 *)get_property(old, "#address-cells", NULL);
+		tmp = get_property(old, "#address-cells", NULL);
 		tnode = of_get_parent(old);
 		of_node_put(old);
 		old = tnode;
@@ -702,7 +705,7 @@
 		}
 
 		/* Now look for an interrupt-map */
-		imap = (u32 *)get_property(ipar, "interrupt-map", &imaplen);
+		imap = get_property(ipar, "interrupt-map", &imaplen);
 		/* No interrupt map, check for an interrupt parent */
 		if (imap == NULL) {
 			DBG(" -> no map, getting parent\n");
@@ -712,7 +715,7 @@
 		imaplen /= sizeof(u32);
 
 		/* Look for a mask */
-		imask = (u32 *)get_property(ipar, "interrupt-map-mask", NULL);
+		imask = get_property(ipar, "interrupt-map-mask", NULL);
 
 		/* If we were passed no "reg" property and we attempt to parse
 		 * an interrupt-map, then #address-cells must be 0.
@@ -759,14 +762,14 @@
 			/* Get #interrupt-cells and #address-cells of new
 			 * parent
 			 */
-			tmp = (u32 *)get_property(newpar, "#interrupt-cells",
+			tmp = get_property(newpar, "#interrupt-cells",
 						  NULL);
 			if (tmp == NULL) {
 				DBG(" -> parent lacks #interrupt-cells !\n");
 				goto fail;
 			}
 			newintsize = *tmp;
-			tmp = (u32 *)get_property(newpar, "#address-cells",
+			tmp = get_property(newpar, "#address-cells",
 						  NULL);
 			newaddrsize = (tmp == NULL) ? 0 : *tmp;
 
@@ -812,14 +815,14 @@
 static int of_irq_map_oldworld(struct device_node *device, int index,
 			       struct of_irq *out_irq)
 {
-	u32 *ints;
+	const u32 *ints;
 	int intlen;
 
 	/*
 	 * Old machines just have a list of interrupt numbers
 	 * and no interrupt-controller nodes.
 	 */
-	ints = (u32 *) get_property(device, "AAPL,interrupts", &intlen);
+	ints = get_property(device, "AAPL,interrupts", &intlen);
 	if (ints == NULL)
 		return -EINVAL;
 	intlen /= sizeof(u32);
@@ -844,7 +847,8 @@
 int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq)
 {
 	struct device_node *p;
-	u32 *intspec, *tmp, intsize, intlen, *addr;
+	const u32 *intspec, *tmp, *addr;
+	u32 intsize, intlen;
 	int res;
 
 	DBG("of_irq_map_one: dev=%s, index=%d\n", device->full_name, index);
@@ -854,13 +858,13 @@
 		return of_irq_map_oldworld(device, index, out_irq);
 
 	/* Get the interrupts property */
-	intspec = (u32 *)get_property(device, "interrupts", &intlen);
+	intspec = get_property(device, "interrupts", &intlen);
 	if (intspec == NULL)
 		return -EINVAL;
 	intlen /= sizeof(u32);
 
 	/* Get the reg property (if any) */
-	addr = (u32 *)get_property(device, "reg", NULL);
+	addr = get_property(device, "reg", NULL);
 
 	/* Look for the interrupt parent. */
 	p = of_irq_find_parent(device);
@@ -868,7 +872,7 @@
 		return -EINVAL;
 
 	/* Get size of interrupt specifier */
-	tmp = (u32 *)get_property(p, "#interrupt-cells", NULL);
+	tmp = get_property(p, "#interrupt-cells", NULL);
 	if (tmp == NULL) {
 		of_node_put(p);
 		return -EINVAL;
diff --git a/arch/powerpc/kernel/rtas-proc.c b/arch/powerpc/kernel/rtas-proc.c
index 9c9ad1f..2fe82ab 100644
--- a/arch/powerpc/kernel/rtas-proc.c
+++ b/arch/powerpc/kernel/rtas-proc.c
@@ -246,12 +246,12 @@
 
 static int ppc_rtas_find_all_sensors(void);
 static void ppc_rtas_process_sensor(struct seq_file *m,
-	struct individual_sensor *s, int state, int error, char *loc);
+	struct individual_sensor *s, int state, int error, const char *loc);
 static char *ppc_rtas_process_error(int error);
 static void get_location_code(struct seq_file *m,
-	struct individual_sensor *s, char *loc);
-static void check_location_string(struct seq_file *m, char *c);
-static void check_location(struct seq_file *m, char *c);
+	struct individual_sensor *s, const char *loc);
+static void check_location_string(struct seq_file *m, const char *c);
+static void check_location(struct seq_file *m, const char *c);
 
 static int __init proc_rtas_init(void)
 {
@@ -446,11 +446,11 @@
 	for (i=0; i<sensors.quant; i++) {
 		struct individual_sensor *p = &sensors.sensor[i];
 		char rstr[64];
-		char *loc;
+		const char *loc;
 		int llen, offs;
 
 		sprintf (rstr, SENSOR_PREFIX"%04d", p->token);
-		loc = (char *) get_property(rtas_node, rstr, &llen);
+		loc = get_property(rtas_node, rstr, &llen);
 
 		/* A sensor may have multiple instances */
 		for (j = 0, offs = 0; j <= p->quant; j++) {
@@ -474,10 +474,10 @@
 
 static int ppc_rtas_find_all_sensors(void)
 {
-	unsigned int *utmp;
+	const unsigned int *utmp;
 	int len, i;
 
-	utmp = (unsigned int *) get_property(rtas_node, "rtas-sensors", &len);
+	utmp = get_property(rtas_node, "rtas-sensors", &len);
 	if (utmp == NULL) {
 		printk (KERN_ERR "error: could not get rtas-sensors\n");
 		return 1;
@@ -530,7 +530,7 @@
  */
 
 static void ppc_rtas_process_sensor(struct seq_file *m,
-	struct individual_sensor *s, int state, int error, char *loc)
+	struct individual_sensor *s, int state, int error, const char *loc)
 {
 	/* Defined return vales */
 	const char * key_switch[]        = { "Off\t", "Normal\t", "Secure\t", 
@@ -682,7 +682,7 @@
 
 /* ****************************************************************** */
 
-static void check_location(struct seq_file *m, char *c)
+static void check_location(struct seq_file *m, const char *c)
 {
 	switch (c[0]) {
 		case LOC_PLANAR:
@@ -719,7 +719,7 @@
  * ${LETTER}${NUMBER}[[-/]${LETTER}${NUMBER} [ ... ] ]
  * the '.' may be an abbrevation
  */
-static void check_location_string(struct seq_file *m, char *c)
+static void check_location_string(struct seq_file *m, const char *c)
 {
 	while (*c) {
 		if (isalpha(*c) || *c == '.')
@@ -733,7 +733,8 @@
 
 /* ****************************************************************** */
 
-static void get_location_code(struct seq_file *m, struct individual_sensor *s, char *loc)
+static void get_location_code(struct seq_file *m, struct individual_sensor *s,
+		const char *loc)
 {
 	if (!loc || !*loc) {
 		seq_printf(m, "---");/* does not have a location */
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 77f1e06..6ef80d4 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -177,10 +177,12 @@
 void rtas_progress(char *s, unsigned short hex)
 {
 	struct device_node *root;
-	int width, *p;
+	int width;
+	const int *p;
 	char *os;
 	static int display_character, set_indicator;
-	static int display_width, display_lines, *row_width, form_feed;
+	static int display_width, display_lines, form_feed;
+	const static int *row_width;
 	static DEFINE_SPINLOCK(progress_lock);
 	static int current_line;
 	static int pending_newline = 0;  /* did last write end with unprinted newline? */
@@ -191,16 +193,16 @@
 	if (display_width == 0) {
 		display_width = 0x10;
 		if ((root = find_path_device("/rtas"))) {
-			if ((p = (unsigned int *)get_property(root,
+			if ((p = get_property(root,
 					"ibm,display-line-length", NULL)))
 				display_width = *p;
-			if ((p = (unsigned int *)get_property(root,
+			if ((p = get_property(root,
 					"ibm,form-feed", NULL)))
 				form_feed = *p;
-			if ((p = (unsigned int *)get_property(root,
+			if ((p = get_property(root,
 					"ibm,display-number-of-lines", NULL)))
 				display_lines = *p;
-			row_width = (unsigned int *)get_property(root,
+			row_width = get_property(root,
 					"ibm,display-truncation-length", NULL);
 		}
 		display_character = rtas_token("display-character");
@@ -293,10 +295,10 @@
 
 int rtas_token(const char *service)
 {
-	int *tokp;
+	const int *tokp;
 	if (rtas.dev == NULL)
 		return RTAS_UNKNOWN_SERVICE;
-	tokp = (int *) get_property(rtas.dev, service, NULL);
+	tokp = get_property(rtas.dev, service, NULL);
 	return tokp ? *tokp : RTAS_UNKNOWN_SERVICE;
 }
 EXPORT_SYMBOL(rtas_token);
@@ -626,6 +628,9 @@
 {
 	int status;
 
+	if (panic_timeout)
+		return;
+
 	if (RTAS_UNKNOWN_SERVICE == rtas_token("ibm,os-term"))
 		return;
 
@@ -687,15 +692,14 @@
 	int i;
 	long state;
 	long rc;
-	unsigned long dummy;
-
+	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
 	struct rtas_suspend_me_data data;
 
 	/* Make sure the state is valid */
-	rc = plpar_hcall(H_VASI_STATE,
-			 ((u64)args->args[0] << 32) | args->args[1],
-			 0, 0, 0,
-			 &state, &dummy, &dummy);
+	rc = plpar_hcall(H_VASI_STATE, retbuf,
+			 ((u64)args->args[0] << 32) | args->args[1]);
+
+	state = retbuf[0];
 
 	if (rc) {
 		printk(KERN_ERR "rtas_ibm_suspend_me: vasi_state returned %ld\n",rc);
@@ -845,15 +849,15 @@
 	 */
 	rtas.dev = of_find_node_by_name(NULL, "rtas");
 	if (rtas.dev) {
-		u32 *basep, *entryp;
-		u32 *sizep;
+		const u32 *basep, *entryp, *sizep;
 
-		basep = (u32 *)get_property(rtas.dev, "linux,rtas-base", NULL);
-		sizep = (u32 *)get_property(rtas.dev, "rtas-size", NULL);
+		basep = get_property(rtas.dev, "linux,rtas-base", NULL);
+		sizep = get_property(rtas.dev, "rtas-size", NULL);
 		if (basep != NULL && sizep != NULL) {
 			rtas.base = *basep;
 			rtas.size = *sizep;
-			entryp = (u32 *)get_property(rtas.dev, "linux,rtas-entry", NULL);
+			entryp = get_property(rtas.dev,
+					"linux,rtas-entry", NULL);
 			if (entryp == NULL) /* Ugh */
 				rtas.entry = rtas.base;
 			else
@@ -909,6 +913,11 @@
 	basep = of_get_flat_dt_prop(node, "get-term-char", NULL);
 	if (basep)
 		rtas_getchar_token = *basep;
+
+	if (rtas_putchar_token != RTAS_UNKNOWN_SERVICE &&
+	    rtas_getchar_token != RTAS_UNKNOWN_SERVICE)
+		udbg_init_rtas_console();
+
 #endif
 
 	/* break now */
diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c
index cda0226..b4a0de7 100644
--- a/arch/powerpc/kernel/rtas_pci.c
+++ b/arch/powerpc/kernel/rtas_pci.c
@@ -57,7 +57,7 @@
 
 static int of_device_available(struct device_node * dn)
 {
-        char * status;
+        const char *status;
 
         status = get_property(dn, "status", NULL);
 
@@ -81,8 +81,7 @@
 	if (!config_access_valid(pdn, where))
 		return PCIBIOS_BAD_REGISTER_NUMBER;
 
-	addr = ((where & 0xf00) << 20) | (pdn->busno << 16) |
-		(pdn->devfn << 8) | (where & 0xff);
+	addr = rtas_config_addr(pdn->busno, pdn->devfn, where);
 	buid = pdn->phb->buid;
 	if (buid) {
 		ret = rtas_call(ibm_read_pci_config, 4, 2, &returnval,
@@ -134,8 +133,7 @@
 	if (!config_access_valid(pdn, where))
 		return PCIBIOS_BAD_REGISTER_NUMBER;
 
-	addr = ((where & 0xf00) << 20) | (pdn->busno << 16) |
-		(pdn->devfn << 8) | (where & 0xff);
+	addr = rtas_config_addr(pdn->busno, pdn->devfn, where);
 	buid = pdn->phb->buid;
 	if (buid) {
 		ret = rtas_call(ibm_write_pci_config, 5, 1, NULL, addr,
@@ -178,7 +176,7 @@
 
 int is_python(struct device_node *dev)
 {
-	char *model = (char *)get_property(dev, "model", NULL);
+	const char *model = get_property(dev, "model", NULL);
 
 	if (model && strstr(model, "Python"))
 		return 1;
@@ -234,7 +232,7 @@
 unsigned long __devinit get_phb_buid (struct device_node *phb)
 {
 	int addr_cells;
-	unsigned int *buid_vals;
+	const unsigned int *buid_vals;
 	unsigned int len;
 	unsigned long buid;
 
@@ -247,7 +245,7 @@
 	if (phb->parent->parent)
 		return 0;
 
-	buid_vals = (unsigned int *) get_property(phb, "reg", &len);
+	buid_vals = get_property(phb, "reg", &len);
 	if (buid_vals == NULL)
 		return 0;
 
@@ -264,10 +262,10 @@
 static int phb_set_bus_ranges(struct device_node *dev,
 			      struct pci_controller *phb)
 {
-	int *bus_range;
+	const int *bus_range;
 	unsigned int len;
 
-	bus_range = (int *) get_property(dev, "bus-range", &len);
+	bus_range = get_property(dev, "bus-range", &len);
 	if (bus_range == NULL || len < 2 * sizeof(int)) {
 		return 1;
  	}
@@ -325,15 +323,15 @@
 	 * in chosen.
 	 */
 	if (of_chosen) {
-		int *prop;
+		const int *prop;
 
-		prop = (int *)get_property(of_chosen, "linux,pci-probe-only",
-					   NULL);
+		prop = get_property(of_chosen,
+				"linux,pci-probe-only", NULL);
 		if (prop)
 			pci_probe_only = *prop;
 
-		prop = (int *)get_property(of_chosen,
-					   "linux,pci-assign-all-buses", NULL);
+		prop = get_property(of_chosen,
+				"linux,pci-assign-all-buses", NULL);
 		if (prop)
 			pci_assign_all_buses = *prop;
 	}
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 499c386..d57930d 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -304,16 +304,15 @@
 void __init check_for_initrd(void)
 {
 #ifdef CONFIG_BLK_DEV_INITRD
-	unsigned long *prop;
+	const unsigned long *prop;
 
 	DBG(" -> check_for_initrd()\n");
 
 	if (of_chosen) {
-		prop = (unsigned long *)get_property(of_chosen,
-				"linux,initrd-start", NULL);
+		prop = get_property(of_chosen, "linux,initrd-start", NULL);
 		if (prop != NULL) {
 			initrd_start = (unsigned long)__va(*prop);
-			prop = (unsigned long *)get_property(of_chosen,
+			prop = get_property(of_chosen,
 					"linux,initrd-end", NULL);
 			if (prop != NULL) {
 				initrd_end = (unsigned long)__va(*prop);
@@ -366,15 +365,14 @@
 	int cpu = 0;
 
 	while ((dn = of_find_node_by_type(dn, "cpu")) && cpu < NR_CPUS) {
-		int *intserv;
+		const int *intserv;
 		int j, len = sizeof(u32), nthreads = 1;
 
-		intserv = (int *)get_property(dn, "ibm,ppc-interrupt-server#s",
-					      &len);
+		intserv = get_property(dn, "ibm,ppc-interrupt-server#s", &len);
 		if (intserv)
 			nthreads = len / sizeof(int);
 		else {
-			intserv = (int *) get_property(dn, "reg", NULL);
+			intserv = get_property(dn, "reg", NULL);
 			if (!intserv)
 				intserv = &cpu;	/* assume logical == phys */
 		}
@@ -395,13 +393,12 @@
 	if (machine_is(pseries) && firmware_has_feature(FW_FEATURE_LPAR) &&
 	    (dn = of_find_node_by_path("/rtas"))) {
 		int num_addr_cell, num_size_cell, maxcpus;
-		unsigned int *ireg;
+		const unsigned int *ireg;
 
 		num_addr_cell = prom_n_addr_cells(dn);
 		num_size_cell = prom_n_size_cells(dn);
 
-		ireg = (unsigned int *)
-			get_property(dn, "ibm,lrdr-capacity", NULL);
+		ireg = get_property(dn, "ibm,lrdr-capacity", NULL);
 
 		if (!ireg)
 			goto out;
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index fd1785e..77efe19 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -56,7 +56,6 @@
 #include <asm/page.h>
 #include <asm/mmu.h>
 #include <asm/lmb.h>
-#include <asm/iseries/it_lp_naca.h>
 #include <asm/firmware.h>
 #include <asm/xmon.h>
 #include <asm/udbg.h>
@@ -107,7 +106,7 @@
 static void check_smt_enabled(void)
 {
 	struct device_node *dn;
-	char *smt_option;
+	const char *smt_option;
 
 	/* Allow the command line to overrule the OF option */
 	if (smt_enabled_cmdline)
@@ -116,7 +115,7 @@
 	dn = of_find_node_by_path("/options");
 
 	if (dn) {
-		smt_option = (char *)get_property(dn, "ibm,smt-enabled", NULL);
+		smt_option = get_property(dn, "ibm,smt-enabled", NULL);
 
                 if (smt_option) {
 			if (!strcmp(smt_option, "on"))
@@ -293,7 +292,7 @@
 		 */
 
 		if ( num_cpus == 1 ) {
-			u32 *sizep, *lsizep;
+			const u32 *sizep, *lsizep;
 			u32 size, lsize;
 			const char *dc, *ic;
 
@@ -308,10 +307,10 @@
 
 			size = 0;
 			lsize = cur_cpu_spec->dcache_bsize;
-			sizep = (u32 *)get_property(np, "d-cache-size", NULL);
+			sizep = get_property(np, "d-cache-size", NULL);
 			if (sizep != NULL)
 				size = *sizep;
-			lsizep = (u32 *) get_property(np, dc, NULL);
+			lsizep = get_property(np, dc, NULL);
 			if (lsizep != NULL)
 				lsize = *lsizep;
 			if (sizep == 0 || lsizep == 0)
@@ -325,10 +324,10 @@
 
 			size = 0;
 			lsize = cur_cpu_spec->icache_bsize;
-			sizep = (u32 *)get_property(np, "i-cache-size", NULL);
+			sizep = get_property(np, "i-cache-size", NULL);
 			if (sizep != NULL)
 				size = *sizep;
-			lsizep = (u32 *)get_property(np, ic, NULL);
+			lsizep = get_property(np, ic, NULL);
 			if (lsizep != NULL)
 				lsize = *lsizep;
 			if (sizep == 0 || lsizep == 0)
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index fec228c..406f308 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -60,7 +60,7 @@
 static int __init smt_setup(void)
 {
 	struct device_node *options;
-	unsigned int *val;
+	const unsigned int *val;
 	unsigned int cpu;
 
 	if (!cpu_has_feature(CPU_FTR_SMT))
@@ -70,8 +70,7 @@
 	if (!options)
 		return -ENODEV;
 
-	val = (unsigned int *)get_property(options, "ibm,smt-snooze-delay",
-					   NULL);
+	val = get_property(options, "ibm,smt-snooze-delay", NULL);
 	if (!smt_snooze_cmdline && val) {
 		for_each_possible_cpu(cpu)
 			per_cpu(smt_snooze_delay, cpu) = *val;
@@ -231,7 +230,7 @@
 	if (cur_cpu_spec->num_pmcs >= 8)
 		sysdev_create_file(s, &attr_pmc8);
 
-	if (cpu_has_feature(CPU_FTR_SMT))
+	if (cpu_has_feature(CPU_FTR_PURR))
 		sysdev_create_file(s, &attr_purr);
 }
 
@@ -273,7 +272,7 @@
 	if (cur_cpu_spec->num_pmcs >= 8)
 		sysdev_remove_file(s, &attr_pmc8);
 
-	if (cpu_has_feature(CPU_FTR_SMT))
+	if (cpu_has_feature(CPU_FTR_PURR))
 		sysdev_remove_file(s, &attr_purr);
 }
 #endif /* CONFIG_HOTPLUG_CPU */
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 18e59e4..272cb82 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -868,14 +868,14 @@
 static int __init get_freq(char *name, int cells, unsigned long *val)
 {
 	struct device_node *cpu;
-	unsigned int *fp;
+	const unsigned int *fp;
 	int found = 0;
 
 	/* The cpu node should have timebase and clock frequency properties */
 	cpu = of_find_node_by_type(NULL, "cpu");
 
 	if (cpu) {
-		fp = (unsigned int *)get_property(cpu, name, NULL);
+		fp = get_property(cpu, name, NULL);
 		if (fp) {
 			found = 1;
 			*val = 0;
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index fad8580..cb87e71 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -77,7 +77,7 @@
 	} else
 #endif
 	{
-		unsigned char *dma_window;
+		const unsigned char *dma_window;
 		struct iommu_table *tbl;
 		unsigned long offset, size;
 
@@ -217,7 +217,7 @@
 struct vio_dev * __devinit vio_register_device_node(struct device_node *of_node)
 {
 	struct vio_dev *viodev;
-	unsigned int *unit_address;
+	const unsigned int *unit_address;
 
 	/* we need the 'device_type' property, in order to match with drivers */
 	if (of_node->type == NULL) {
@@ -227,7 +227,7 @@
 		return NULL;
 	}
 
-	unit_address = (unsigned int *)get_property(of_node, "reg", NULL);
+	unit_address = get_property(of_node, "reg", NULL);
 	if (unit_address == NULL) {
 		printk(KERN_WARNING "%s: node %s missing 'reg'\n",
 				__FUNCTION__,
@@ -249,7 +249,7 @@
 	viodev->type = of_node->type;
 	viodev->unit_address = *unit_address;
 	if (firmware_has_feature(FW_FEATURE_ISERIES)) {
-		unit_address = (unsigned int *)get_property(of_node,
+		unit_address = get_property(of_node,
 				"linux,unit_address", NULL);
 		if (unit_address != NULL)
 			viodev->unit_address = *unit_address;
@@ -423,7 +423,7 @@
 {
 	const struct vio_dev *vio_dev = to_vio_dev(dev);
 	struct device_node *dn = dev->platform_data;
-	char *cp;
+	const char *cp;
 	int length;
 
 	if (!num_envp)
@@ -431,7 +431,7 @@
 
 	if (!dn)
 		return -ENODEV;
-	cp = (char *)get_property(dn, "compatible", &length);
+	cp = get_property(dn, "compatible", &length);
 	if (!cp)
 		return -ENODEV;
 
@@ -493,11 +493,11 @@
  */
 struct vio_dev *vio_find_node(struct device_node *vnode)
 {
-	uint32_t *unit_address;
+	const uint32_t *unit_address;
 	char kobj_name[BUS_ID_SIZE];
 
 	/* construct the kobject name from the device node */
-	unit_address = (uint32_t *)get_property(vnode, "reg", NULL);
+	unit_address = get_property(vnode, "reg", NULL);
 	if (!unit_address)
 		return NULL;
 	snprintf(kobj_name, BUS_ID_SIZE, "%x", *unit_address);
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index ff70964..336dd19 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -14,7 +14,6 @@
 obj-$(CONFIG_PPC64)	+= checksum_64.o copypage_64.o copyuser_64.o \
 			   memcpy_64.o usercopy_64.o mem_64.o string.o \
 			   strcase.o
-obj-$(CONFIG_PPC_ISERIES) += e2a.o
 obj-$(CONFIG_XMON)	+= sstep.o
 
 ifeq ($(CONFIG_PPC64),y)
diff --git a/arch/powerpc/lib/e2a.c b/arch/powerpc/lib/e2a.c
deleted file mode 100644
index 4b72ed8..0000000
--- a/arch/powerpc/lib/e2a.c
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- *  EBCDIC to ASCII conversion
- *
- * This function moved here from arch/powerpc/platforms/iseries/viopath.c 
- *
- * (C) Copyright 2000-2004 IBM Corporation
- *
- * This program is free software;  you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) anyu later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include <linux/module.h>
-
-unsigned char e2a(unsigned char x)
-{
-	switch (x) {
-	case 0xF0:
-		return '0';
-	case 0xF1:
-		return '1';
-	case 0xF2:
-		return '2';
-	case 0xF3:
-		return '3';
-	case 0xF4:
-		return '4';
-	case 0xF5:
-		return '5';
-	case 0xF6:
-		return '6';
-	case 0xF7:
-		return '7';
-	case 0xF8:
-		return '8';
-	case 0xF9:
-		return '9';
-	case 0xC1:
-		return 'A';
-	case 0xC2:
-		return 'B';
-	case 0xC3:
-		return 'C';
-	case 0xC4:
-		return 'D';
-	case 0xC5:
-		return 'E';
-	case 0xC6:
-		return 'F';
-	case 0xC7:
-		return 'G';
-	case 0xC8:
-		return 'H';
-	case 0xC9:
-		return 'I';
-	case 0xD1:
-		return 'J';
-	case 0xD2:
-		return 'K';
-	case 0xD3:
-		return 'L';
-	case 0xD4:
-		return 'M';
-	case 0xD5:
-		return 'N';
-	case 0xD6:
-		return 'O';
-	case 0xD7:
-		return 'P';
-	case 0xD8:
-		return 'Q';
-	case 0xD9:
-		return 'R';
-	case 0xE2:
-		return 'S';
-	case 0xE3:
-		return 'T';
-	case 0xE4:
-		return 'U';
-	case 0xE5:
-		return 'V';
-	case 0xE6:
-		return 'W';
-	case 0xE7:
-		return 'X';
-	case 0xE8:
-		return 'Y';
-	case 0xE9:
-		return 'Z';
-	}
-	return ' ';
-}
-EXPORT_SYMBOL(e2a);
-
-unsigned char* strne2a(unsigned char *dest, const unsigned char *src, size_t n)
-{
-	int i;
-
-	n = strnlen(src, n);
-
-	for (i = 0; i < n; i++)
-		dest[i] = e2a(src[i]);
-
-	return dest;
-}
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index fbe2393..6c0f1c7 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -159,12 +159,12 @@
 {
 	unsigned int hw_cpuid = get_hard_smp_processor_id(cpu);
 	struct device_node *cpu_node = NULL;
-	unsigned int *interrupt_server, *reg;
+	const unsigned int *interrupt_server, *reg;
 	int len;
 
 	while ((cpu_node = of_find_node_by_type(cpu_node, "cpu")) != NULL) {
 		/* Try interrupt server first */
-		interrupt_server = (unsigned int *)get_property(cpu_node,
+		interrupt_server = get_property(cpu_node,
 					"ibm,ppc-interrupt-server#s", &len);
 
 		len = len / sizeof(u32);
@@ -175,8 +175,7 @@
 					return cpu_node;
 			}
 		} else {
-			reg = (unsigned int *)get_property(cpu_node,
-							   "reg", &len);
+			reg = get_property(cpu_node, "reg", &len);
 			if (reg && (len > 0) && (reg[0] == hw_cpuid))
 				return cpu_node;
 		}
@@ -186,9 +185,9 @@
 }
 
 /* must hold reference to node during call */
-static int *of_get_associativity(struct device_node *dev)
+static const int *of_get_associativity(struct device_node *dev)
 {
-	return (unsigned int *)get_property(dev, "ibm,associativity", NULL);
+	return get_property(dev, "ibm,associativity", NULL);
 }
 
 /* Returns nid in the range [0..MAX_NUMNODES-1], or -1 if no useful numa
@@ -197,7 +196,7 @@
 static int of_node_to_nid_single(struct device_node *device)
 {
 	int nid = -1;
-	unsigned int *tmp;
+	const unsigned int *tmp;
 
 	if (min_common_depth == -1)
 		goto out;
@@ -255,7 +254,7 @@
 static int __init find_min_common_depth(void)
 {
 	int depth;
-	unsigned int *ref_points;
+	const unsigned int *ref_points;
 	struct device_node *rtas_root;
 	unsigned int len;
 
@@ -270,7 +269,7 @@
 	 * configuration (should be all 0's) and the second is for a normal
 	 * NUMA configuration.
 	 */
-	ref_points = (unsigned int *)get_property(rtas_root,
+	ref_points = get_property(rtas_root,
 			"ibm,associativity-reference-points", &len);
 
 	if ((len >= 1) && ref_points) {
@@ -297,7 +296,7 @@
 	of_node_put(memory);
 }
 
-static unsigned long __devinit read_n_cells(int n, unsigned int **buf)
+static unsigned long __devinit read_n_cells(int n, const unsigned int **buf)
 {
 	unsigned long result = 0;
 
@@ -435,15 +434,13 @@
 		unsigned long size;
 		int nid;
 		int ranges;
-		unsigned int *memcell_buf;
+		const unsigned int *memcell_buf;
 		unsigned int len;
 
-		memcell_buf = (unsigned int *)get_property(memory,
+		memcell_buf = get_property(memory,
 			"linux,usable-memory", &len);
 		if (!memcell_buf || len <= 0)
-			memcell_buf =
-				(unsigned int *)get_property(memory, "reg",
-					&len);
+			memcell_buf = get_property(memory, "reg", &len);
 		if (!memcell_buf || len <= 0)
 			continue;
 
@@ -787,10 +784,10 @@
 	while ((memory = of_find_node_by_type(memory, "memory")) != NULL) {
 		unsigned long start, size;
 		int ranges;
-		unsigned int *memcell_buf;
+		const unsigned int *memcell_buf;
 		unsigned int len;
 
-		memcell_buf = (unsigned int *)get_property(memory, "reg", &len);
+		memcell_buf = get_property(memory, "reg", &len);
 		if (!memcell_buf || len <= 0)
 			continue;
 
diff --git a/arch/powerpc/mm/slb.c b/arch/powerpc/mm/slb.c
index de0c884..d373391 100644
--- a/arch/powerpc/mm/slb.c
+++ b/arch/powerpc/mm/slb.c
@@ -22,6 +22,8 @@
 #include <asm/paca.h>
 #include <asm/cputable.h>
 #include <asm/cacheflush.h>
+#include <asm/smp.h>
+#include <linux/compiler.h>
 
 #ifdef DEBUG
 #define DBG(fmt...) udbg_printf(fmt)
@@ -50,9 +52,32 @@
 	return (get_kernel_vsid(ea) << SLB_VSID_SHIFT) | flags;
 }
 
-static inline void create_slbe(unsigned long ea, unsigned long flags,
-			       unsigned long entry)
+static inline void slb_shadow_update(unsigned long esid, unsigned long vsid,
+				     unsigned long entry)
 {
+	/*
+	 * Clear the ESID first so the entry is not valid while we are
+	 * updating it.
+	 */
+	get_slb_shadow()->save_area[entry].esid = 0;
+	barrier();
+	get_slb_shadow()->save_area[entry].vsid = vsid;
+	barrier();
+	get_slb_shadow()->save_area[entry].esid = esid;
+
+}
+
+static inline void create_shadowed_slbe(unsigned long ea, unsigned long flags,
+					unsigned long entry)
+{
+	/*
+	 * Updating the shadow buffer before writing the SLB ensures
+	 * we don't get a stale entry here if we get preempted by PHYP
+	 * between these two statements.
+	 */
+	slb_shadow_update(mk_esid_data(ea, entry), mk_vsid_data(ea, flags),
+			  entry);
+
 	asm volatile("slbmte  %0,%1" :
 		     : "r" (mk_vsid_data(ea, flags)),
 		       "r" (mk_esid_data(ea, entry))
@@ -77,6 +102,10 @@
 	if ((ksp_esid_data & ESID_MASK) == PAGE_OFFSET)
 		ksp_esid_data &= ~SLB_ESID_V;
 
+	/* Only third entry (stack) may change here so only resave that */
+	slb_shadow_update(ksp_esid_data,
+			  mk_vsid_data(ksp_esid_data, lflags), 2);
+
 	/* We need to do this all in asm, so we're sure we don't touch
 	 * the stack between the slbia and rebolting it. */
 	asm volatile("isync\n"
@@ -209,9 +238,9 @@
 	asm volatile("isync":::"memory");
 	asm volatile("slbmte  %0,%0"::"r" (0) : "memory");
 	asm volatile("isync; slbia; isync":::"memory");
-	create_slbe(PAGE_OFFSET, lflags, 0);
+	create_shadowed_slbe(PAGE_OFFSET, lflags, 0);
 
-	create_slbe(VMALLOC_START, vflags, 1);
+	create_shadowed_slbe(VMALLOC_START, vflags, 1);
 
 	/* We don't bolt the stack for the time being - we're in boot,
 	 * so the stack is in the bolted segment.  By the time it goes
diff --git a/arch/powerpc/mm/tlb_64.c b/arch/powerpc/mm/tlb_64.c
index f6eef78..b58baa6 100644
--- a/arch/powerpc/mm/tlb_64.c
+++ b/arch/powerpc/mm/tlb_64.c
@@ -146,6 +146,7 @@
 		psize = mmu_huge_psize;
 #else
 		BUG();
+		psize = pte_pagesize_index(pte); /* shutup gcc */
 #endif
 	} else
 		psize = pte_pagesize_index(pte);
diff --git a/arch/powerpc/platforms/83xx/mpc834x_itx.c b/arch/powerpc/platforms/83xx/mpc834x_itx.c
index b463056..d9675f9 100644
--- a/arch/powerpc/platforms/83xx/mpc834x_itx.c
+++ b/arch/powerpc/platforms/83xx/mpc834x_itx.c
@@ -80,8 +80,8 @@
 
 	np = of_find_node_by_type(NULL, "cpu");
 	if (np != 0) {
-		unsigned int *fp =
-		    (int *)get_property(np, "clock-frequency", NULL);
+		const unsigned int *fp =
+			get_property(np, "clock-frequency", NULL);
 		if (fp != 0)
 			loops_per_jiffy = *fp / HZ;
 		else
diff --git a/arch/powerpc/platforms/83xx/mpc834x_sys.c b/arch/powerpc/platforms/83xx/mpc834x_sys.c
index 3e1c16e..5eadf9d 100644
--- a/arch/powerpc/platforms/83xx/mpc834x_sys.c
+++ b/arch/powerpc/platforms/83xx/mpc834x_sys.c
@@ -84,8 +84,8 @@
 
 	np = of_find_node_by_type(NULL, "cpu");
 	if (np != 0) {
-		unsigned int *fp =
-		    (int *)get_property(np, "clock-frequency", NULL);
+		const unsigned int *fp =
+			get_property(np, "clock-frequency", NULL);
 		if (fp != 0)
 			loops_per_jiffy = *fp / HZ;
 		else
diff --git a/arch/powerpc/platforms/83xx/pci.c b/arch/powerpc/platforms/83xx/pci.c
index 3b5e563..9c36505 100644
--- a/arch/powerpc/platforms/83xx/pci.c
+++ b/arch/powerpc/platforms/83xx/pci.c
@@ -50,7 +50,7 @@
 	int len;
 	struct pci_controller *hose;
 	struct resource rsrc;
-	int *bus_range;
+	const int *bus_range;
 	int primary = 1, has_address = 0;
 	phys_addr_t immr = get_immrbase();
 
@@ -60,7 +60,7 @@
 	has_address = (of_address_to_resource(dev, 0, &rsrc) == 0);
 
 	/* Get bus range if any */
-	bus_range = (int *)get_property(dev, "bus-range", &len);
+	bus_range = get_property(dev, "bus-range", &len);
 	if (bus_range == NULL || len < 2 * sizeof(int)) {
 		printk(KERN_WARNING "Can't get bus-range for %s, assume"
 		       " bus 0\n", dev->full_name);
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ads.c b/arch/powerpc/platforms/85xx/mpc85xx_ads.c
index 9d2acfb..cae6b73 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_ads.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_ads.c
@@ -121,9 +121,9 @@
 
 	cpu = of_find_node_by_type(NULL, "cpu");
 	if (cpu != 0) {
-		unsigned int *fp;
+		const unsigned int *fp;
 
-		fp = (int *)get_property(cpu, "clock-frequency", NULL);
+		fp = get_property(cpu, "clock-frequency", NULL);
 		if (fp != 0)
 			loops_per_jiffy = *fp / HZ;
 		else
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_cds.c b/arch/powerpc/platforms/85xx/mpc85xx_cds.c
index 1d357d3..4c1fede 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_cds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_cds.c
@@ -241,9 +241,9 @@
 
 	cpu = of_find_node_by_type(NULL, "cpu");
 	if (cpu != 0) {
-		unsigned int *fp;
+		const unsigned int *fp;
 
-		fp = (int *)get_property(cpu, "clock-frequency", NULL);
+		fp = get_property(cpu, "clock-frequency", NULL);
 		if (fp != 0)
 			loops_per_jiffy = *fp / HZ;
 		else
diff --git a/arch/powerpc/platforms/85xx/pci.c b/arch/powerpc/platforms/85xx/pci.c
index 1d51f32..05930ee 100644
--- a/arch/powerpc/platforms/85xx/pci.c
+++ b/arch/powerpc/platforms/85xx/pci.c
@@ -41,7 +41,7 @@
 	int len;
 	struct pci_controller *hose;
 	struct resource rsrc;
-	int *bus_range;
+	const int *bus_range;
 	int primary = 1, has_address = 0;
 	phys_addr_t immr = get_immrbase();
 
@@ -51,7 +51,7 @@
 	has_address = (of_address_to_resource(dev, 0, &rsrc) == 0);
 
 	/* Get bus range if any */
-	bus_range = (int *) get_property(dev, "bus-range", &len);
+	bus_range = get_property(dev, "bus-range", &len);
 	if (bus_range == NULL || len < 2 * sizeof(int)) {
 		printk(KERN_WARNING "Can't get bus-range for %s, assume"
 		       " bus 0\n", dev->full_name);
diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
index 0b1b521..8e43310 100644
--- a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
+++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
@@ -347,9 +347,9 @@
 
 	np = of_find_node_by_type(NULL, "cpu");
 	if (np != 0) {
-		unsigned int *fp;
+		const unsigned int *fp;
 
-		fp = (int *)get_property(np, "clock-frequency", NULL);
+		fp = get_property(np, "clock-frequency", NULL);
 		if (fp != 0)
 			loops_per_jiffy = *fp / HZ;
 		else
diff --git a/arch/powerpc/platforms/86xx/pci.c b/arch/powerpc/platforms/86xx/pci.c
index a8c8f0a..481e18e 100644
--- a/arch/powerpc/platforms/86xx/pci.c
+++ b/arch/powerpc/platforms/86xx/pci.c
@@ -153,7 +153,7 @@
 	int len;
 	struct pci_controller *hose;
 	struct resource rsrc;
-	int *bus_range;
+	const int *bus_range;
 	int has_address = 0;
 	int primary = 0;
 
@@ -163,7 +163,7 @@
 	has_address = (of_address_to_resource(dev, 0, &rsrc) == 0);
 
 	/* Get bus range if any */
-	bus_range = (int *) get_property(dev, "bus-range", &len);
+	bus_range = get_property(dev, "bus-range", &len);
 	if (bus_range == NULL || len < 2 * sizeof(int))
 		printk(KERN_WARNING "Can't get bus-range for %s, assume"
 		       " bus 0\n", dev->full_name);
diff --git a/arch/powerpc/platforms/cell/cbe_regs.c b/arch/powerpc/platforms/cell/cbe_regs.c
index ce696c1..3f3859d 100644
--- a/arch/powerpc/platforms/cell/cbe_regs.c
+++ b/arch/powerpc/platforms/cell/cbe_regs.c
@@ -97,7 +97,7 @@
 		struct cbe_regs_map *map = &cbe_regs_maps[cbe_regs_map_count++];
 
 		/* That hack must die die die ! */
-		struct address_prop {
+		const struct address_prop {
 			unsigned long address;
 			unsigned int len;
 		} __attribute__((packed)) *prop;
@@ -114,13 +114,11 @@
 			if (cbe_thread_map[i].cpu_node == cpu)
 				cbe_thread_map[i].regs = map;
 
-		prop = (struct address_prop *)get_property(cpu, "pervasive",
-							   NULL);
+		prop = get_property(cpu, "pervasive", NULL);
 		if (prop != NULL)
 			map->pmd_regs = ioremap(prop->address, prop->len);
 
-		prop = (struct address_prop *)get_property(cpu, "iic",
-							   NULL);
+		prop = get_property(cpu, "iic", NULL);
 		if (prop != NULL)
 			map->iic_regs = ioremap(prop->address, prop->len);
 	}
diff --git a/arch/powerpc/platforms/cell/interrupt.c b/arch/powerpc/platforms/cell/interrupt.c
index d7bbb61..6b57a47 100644
--- a/arch/powerpc/platforms/cell/interrupt.c
+++ b/arch/powerpc/platforms/cell/interrupt.c
@@ -89,17 +89,17 @@
 /* Get an IRQ number from the pending state register of the IIC */
 static unsigned int iic_get_irq(struct pt_regs *regs)
 {
-  	struct cbe_iic_pending_bits pending;
- 	struct iic *iic;
+	struct cbe_iic_pending_bits pending;
+	struct iic *iic;
 
- 	iic = &__get_cpu_var(iic);
- 	*(unsigned long *) &pending =
- 		in_be64((unsigned long __iomem *) &iic->regs->pending_destr);
- 	iic->eoi_stack[++iic->eoi_ptr] = pending.prio;
- 	BUG_ON(iic->eoi_ptr > 15);
+	iic = &__get_cpu_var(iic);
+	*(unsigned long *) &pending =
+		in_be64((unsigned long __iomem *) &iic->regs->pending_destr);
+	iic->eoi_stack[++iic->eoi_ptr] = pending.prio;
+	BUG_ON(iic->eoi_ptr > 15);
 	if (pending.flags & CBE_IIC_IRQ_VALID)
 		return irq_linear_revmap(iic->host,
- 					 iic_pending_to_hwnum(pending));
+					 iic_pending_to_hwnum(pending));
 	return NO_IRQ;
 }
 
@@ -250,16 +250,15 @@
 	struct resource r0, r1;
 	struct irq_host *host;
 	int found = 0;
- 	u32 *np;
+	const u32 *np;
 
 	for (dn = NULL;
 	     (dn = of_find_node_by_name(dn,"interrupt-controller")) != NULL;) {
 		if (!device_is_compatible(dn,
 				     "IBM,CBEA-Internal-Interrupt-Controller"))
 			continue;
- 		np = (u32 *)get_property(dn, "ibm,interrupt-server-ranges",
-					 NULL);
- 		if (np == NULL) {
+		np = get_property(dn, "ibm,interrupt-server-ranges", NULL);
+		if (np == NULL) {
 			printk(KERN_WARNING "IIC: CPU association not found\n");
 			of_node_put(dn);
 			return -ENODEV;
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index a35004e..d2b20eb 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -308,15 +308,16 @@
 
 static void iommu_devnode_setup(struct device_node *d)
 {
-	unsigned int *ioid;
-	unsigned long *dma_window, map_start, map_size, token;
+	const unsigned int *ioid;
+	unsigned long map_start, map_size, token;
+	const unsigned long *dma_window;
 	struct cell_iommu *iommu;
 
-	ioid = (unsigned int *)get_property(d, "ioid", NULL);
+	ioid = get_property(d, "ioid", NULL);
 	if (!ioid)
 		pr_debug("No ioid entry found !\n");
 
-	dma_window = (unsigned long *)get_property(d, "ibm,dma-window", NULL);
+	dma_window = get_property(d, "ibm,dma-window", NULL);
 	if (!dma_window)
 		pr_debug("No ibm,dma-window entry found !\n");
 
@@ -371,8 +372,9 @@
 
 static int cell_map_iommu(void)
 {
-	unsigned int num_nodes = 0, *node_id;
-	unsigned long *base, *mmio_base;
+	unsigned int num_nodes = 0;
+	const unsigned int *node_id;
+	const unsigned long *base, *mmio_base;
 	struct device_node *dn;
 	struct cell_iommu *iommu = NULL;
 
@@ -381,7 +383,7 @@
 	for(dn = of_find_node_by_type(NULL, "cpu");
 	    dn;
 	    dn = of_find_node_by_type(dn, "cpu")) {
-		node_id = (unsigned int *)get_property(dn, "node-id", NULL);
+		node_id = get_property(dn, "node-id", NULL);
 
 		if (num_nodes < *node_id)
 			num_nodes = *node_id;
@@ -396,9 +398,9 @@
 	    dn;
 	    dn = of_find_node_by_type(dn, "cpu")) {
 
-		node_id = (unsigned int *)get_property(dn, "node-id", NULL);
-		base = (unsigned long *)get_property(dn, "ioc-cache", NULL);
-		mmio_base = (unsigned long *)get_property(dn, "ioc-translation", NULL);
+		node_id = get_property(dn, "node-id", NULL);
+		base = get_property(dn, "ioc-cache", NULL);
+		mmio_base = get_property(dn, "ioc-translation", NULL);
 
 		if (!base || !mmio_base || !node_id)
 			return cell_map_iommu_hardcoded(num_nodes);
diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c
index 282987d..22c228a 100644
--- a/arch/powerpc/platforms/cell/setup.c
+++ b/arch/powerpc/platforms/cell/setup.c
@@ -150,10 +150,6 @@
 	    !of_flat_dt_is_compatible(root, "IBM,CPBW-1.0"))
 		return 0;
 
-#ifdef CONFIG_UDBG_RTAS_CONSOLE
-	udbg_init_rtas_console();
-#endif
-
 	hpte_init_native();
 
 	return 1;
diff --git a/arch/powerpc/platforms/cell/smp.c b/arch/powerpc/platforms/cell/smp.c
index 46aef06..1c0acba 100644
--- a/arch/powerpc/platforms/cell/smp.c
+++ b/arch/powerpc/platforms/cell/smp.c
@@ -57,7 +57,7 @@
  */
 static cpumask_t of_spin_map;
 
-extern void pSeries_secondary_smp_init(unsigned long);
+extern void generic_secondary_smp_init(unsigned long);
 
 /**
  * smp_startup_cpu() - start the given cpu
@@ -74,7 +74,7 @@
 {
 	int status;
 	unsigned long start_here = __pa((u32)*((unsigned long *)
-					       pSeries_secondary_smp_init));
+					       generic_secondary_smp_init));
 	unsigned int pcpu;
 	int start_cpu;
 
diff --git a/arch/powerpc/platforms/cell/spider-pic.c b/arch/powerpc/platforms/cell/spider-pic.c
index 15217bb..742a032 100644
--- a/arch/powerpc/platforms/cell/spider-pic.c
+++ b/arch/powerpc/platforms/cell/spider-pic.c
@@ -240,7 +240,7 @@
 static unsigned int __init spider_find_cascade_and_node(struct spider_pic *pic)
 {
 	unsigned int virq;
-	u32 *imap, *tmp;
+	const u32 *imap, *tmp;
 	int imaplen, intsize, unit;
 	struct device_node *iic;
 	struct irq_host *iic_host;
@@ -258,25 +258,25 @@
 #endif
 
 	/* Now do the horrible hacks */
-	tmp = (u32 *)get_property(pic->of_node, "#interrupt-cells", NULL);
+	tmp = get_property(pic->of_node, "#interrupt-cells", NULL);
 	if (tmp == NULL)
 		return NO_IRQ;
 	intsize = *tmp;
-	imap = (u32 *)get_property(pic->of_node, "interrupt-map", &imaplen);
+	imap = get_property(pic->of_node, "interrupt-map", &imaplen);
 	if (imap == NULL || imaplen < (intsize + 1))
 		return NO_IRQ;
 	iic = of_find_node_by_phandle(imap[intsize]);
 	if (iic == NULL)
 		return NO_IRQ;
 	imap += intsize + 1;
-	tmp = (u32 *)get_property(iic, "#interrupt-cells", NULL);
+	tmp = get_property(iic, "#interrupt-cells", NULL);
 	if (tmp == NULL)
 		return NO_IRQ;
 	intsize = *tmp;
 	/* Assume unit is last entry of interrupt specifier */
 	unit = imap[intsize - 1];
 	/* Ok, we have a unit, now let's try to get the node */
-	tmp = (u32 *)get_property(iic, "ibm,interrupt-server-ranges", NULL);
+	tmp = get_property(iic, "ibm,interrupt-server-ranges", NULL);
 	if (tmp == NULL) {
 		of_node_put(iic);
 		return NO_IRQ;
diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c
index d06042d..3bd36d4 100644
--- a/arch/powerpc/platforms/cell/spu_base.c
+++ b/arch/powerpc/platforms/cell/spu_base.c
@@ -488,10 +488,10 @@
 
 static int __init find_spu_node_id(struct device_node *spe)
 {
-	unsigned int *id;
+	const unsigned int *id;
 	struct device_node *cpu;
 	cpu = spe->parent->parent;
-	id = (unsigned int *)get_property(cpu, "node-id", NULL);
+	id = get_property(cpu, "node-id", NULL);
 	return id ? *id : 0;
 }
 
@@ -500,7 +500,7 @@
 {
 	static DEFINE_MUTEX(add_spumem_mutex);
 
-	struct address_prop {
+	const struct address_prop {
 		unsigned long address;
 		unsigned int len;
 	} __attribute__((packed)) *p;
@@ -511,7 +511,7 @@
 	struct zone *zone;
 	int ret;
 
-	p = (void*)get_property(spe, prop, &proplen);
+	p = get_property(spe, prop, &proplen);
 	WARN_ON(proplen != sizeof (*p));
 
 	start_pfn = p->address >> PAGE_SHIFT;
@@ -531,12 +531,12 @@
 static void __iomem * __init map_spe_prop(struct spu *spu,
 		struct device_node *n, const char *name)
 {
-	struct address_prop {
+	const struct address_prop {
 		unsigned long address;
 		unsigned int len;
 	} __attribute__((packed)) *prop;
 
-	void *p;
+	const void *p;
 	int proplen;
 	void* ret = NULL;
 	int err = 0;
@@ -570,14 +570,14 @@
 {
 	struct irq_host *host;
 	unsigned int isrc;
-	u32 *tmp;
+	const u32 *tmp;
 
 	host = iic_get_irq_host(spu->node);
 	if (host == NULL)
 		return -ENODEV;
 
 	/* Get the interrupt source from the device-tree */
-	tmp = (u32 *)get_property(np, "isrc", NULL);
+	tmp = get_property(np, "isrc", NULL);
 	if (!tmp)
 		return -ENODEV;
 	spu->isrc = isrc = tmp[0];
@@ -593,7 +593,7 @@
 
 static int __init spu_map_device(struct spu *spu, struct device_node *node)
 {
-	char *prop;
+	const char *prop;
 	int ret;
 
 	ret = -ENODEV;
diff --git a/arch/powerpc/platforms/chrp/nvram.c b/arch/powerpc/platforms/chrp/nvram.c
index 150f67d..0dd4a64 100644
--- a/arch/powerpc/platforms/chrp/nvram.c
+++ b/arch/powerpc/platforms/chrp/nvram.c
@@ -67,13 +67,14 @@
 void __init chrp_nvram_init(void)
 {
 	struct device_node *nvram;
-	unsigned int *nbytes_p, proplen;
+	const unsigned int *nbytes_p;
+	unsigned int proplen;
 
 	nvram = of_find_node_by_type(NULL, "nvram");
 	if (nvram == NULL)
 		return;
 
-	nbytes_p = (unsigned int *)get_property(nvram, "#bytes", &proplen);
+	nbytes_p = get_property(nvram, "#bytes", &proplen);
 	if (nbytes_p == NULL || proplen != sizeof(unsigned int))
 		return;
 
diff --git a/arch/powerpc/platforms/chrp/pci.c b/arch/powerpc/platforms/chrp/pci.c
index 6802cdc3..0f43405 100644
--- a/arch/powerpc/platforms/chrp/pci.c
+++ b/arch/powerpc/platforms/chrp/pci.c
@@ -214,11 +214,11 @@
 chrp_find_bridges(void)
 {
 	struct device_node *dev;
-	int *bus_range;
+	const int *bus_range;
 	int len, index = -1;
 	struct pci_controller *hose;
-	unsigned int *dma;
-	char *model, *machine;
+	const unsigned int *dma;
+	const char *model, *machine;
 	int is_longtrail = 0, is_mot = 0, is_pegasos = 0;
 	struct device_node *root = find_path_device("/");
 	struct resource r;
@@ -246,7 +246,7 @@
 			       dev->full_name);
 			continue;
 		}
-		bus_range = (int *) get_property(dev, "bus-range", &len);
+		bus_range = get_property(dev, "bus-range", &len);
 		if (bus_range == NULL || len < 2 * sizeof(int)) {
 			printk(KERN_WARNING "Can't get bus-range for %s\n",
 				dev->full_name);
@@ -257,7 +257,7 @@
 		else
 			printk(KERN_INFO "PCI buses %d..%d",
 			       bus_range[0], bus_range[1]);
-		printk(" controlled by %s", dev->type);
+		printk(" controlled by %s", dev->full_name);
 		if (!is_longtrail)
 			printk(" at %llx", (unsigned long long)r.start);
 		printk("\n");
@@ -289,6 +289,19 @@
 			setup_indirect_pci(hose, 0xfec00cf8, 0xfee00cfc);
 		} else if (is_pegasos == 2) {
 			setup_peg2(hose, dev);
+		} else if (!strncmp(model, "IBM,CPC710", 10)) {
+			setup_indirect_pci(hose,
+					   r.start + 0x000f8000,
+					   r.start + 0x000f8010);
+			if (index == 0) {
+				dma = get_property(dev, "system-dma-base",&len);
+				if (dma && len >= sizeof(*dma)) {
+					dma = (unsigned int *)
+						(((unsigned long)dma) +
+						len - sizeof(*dma));
+						pci_dram_offset = *dma;
+				}
+			}
 		} else {
 			printk("No methods for %s (model %s), using RTAS\n",
 			       dev->full_name, model);
@@ -299,15 +312,35 @@
 
 		/* check the first bridge for a property that we can
 		   use to set pci_dram_offset */
-		dma = (unsigned int *)
-			get_property(dev, "ibm,dma-ranges", &len);
+		dma = get_property(dev, "ibm,dma-ranges", &len);
 		if (index == 0 && dma != NULL && len >= 6 * sizeof(*dma)) {
 			pci_dram_offset = dma[2] - dma[3];
 			printk("pci_dram_offset = %lx\n", pci_dram_offset);
 		}
 	}
-
-	/* Do not fixup interrupts from OF tree on pegasos */
-	if (is_pegasos)
-		ppc_md.pcibios_fixup = NULL;
 }
+
+/* SL82C105 IDE Control/Status Register */
+#define SL82C105_IDECSR                0x40
+
+/* Fixup for Winbond ATA quirk, required for briq */
+void chrp_pci_fixup_winbond_ata(struct pci_dev *sl82c105)
+{
+	u8 progif;
+
+	/* If non-briq machines need that fixup too, please speak up */
+	if (!machine_is(chrp) || _chrp_type != _CHRP_briq)
+		return;
+
+	if ((sl82c105->class & 5) != 5) {
+		printk("W83C553: Switching SL82C105 IDE to PCI native mode\n");
+		/* Enable SL82C105 PCI native IDE mode */
+		pci_read_config_byte(sl82c105, PCI_CLASS_PROG, &progif);
+		pci_write_config_byte(sl82c105, PCI_CLASS_PROG, progif | 0x05);
+		sl82c105->class |= 0x05;
+		/* Disable SL82C105 second port */
+		pci_write_config_word(sl82c105, SL82C105_IDECSR, 0x0003);
+	}
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_82C105,
+		chrp_pci_fixup_winbond_ata);
diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c
index 9c08ff3..488dbd9 100644
--- a/arch/powerpc/platforms/chrp/setup.c
+++ b/arch/powerpc/platforms/chrp/setup.c
@@ -74,6 +74,9 @@
 
 extern unsigned long loops_per_jiffy;
 
+/* To be replaced by RTAS when available */
+static unsigned int *briq_SPOR;
+
 #ifdef CONFIG_SMP
 extern struct smp_ops_t chrp_smp_ops;
 #endif
@@ -92,6 +95,15 @@
 	"Disabled", "Write-Through", "Copy-Back", "Transparent Mode"
 };
 
+static const char *chrp_names[] = {
+	"Unknown",
+	"","","",
+	"Motorola",
+	"IBM or Longtrail",
+	"Genesi Pegasos",
+	"Total Impact Briq"
+};
+
 void chrp_show_cpuinfo(struct seq_file *m)
 {
 	int i, sdramen;
@@ -214,8 +226,7 @@
 	/* Enable L2 cache if needed */
 	np = find_type_devices("cpu");
 	if (np != NULL) {
-		unsigned int *l2cr = (unsigned int *)
-			get_property (np, "l2cr", NULL);
+		const unsigned int *l2cr = get_property(np, "l2cr", NULL);
 		if (l2cr == NULL) {
 			printk ("Pegasos l2cr : no cpu l2cr property found\n");
 			return;
@@ -229,10 +240,18 @@
 	}
 }
 
+static void briq_restart(char *cmd)
+{
+	local_irq_disable();
+	if (briq_SPOR)
+		out_be32(briq_SPOR, 0);
+	for(;;);
+}
+
 void __init chrp_setup_arch(void)
 {
 	struct device_node *root = find_path_device ("/");
-	char *machine = NULL;
+	const char *machine = NULL;
 
 	/* init to some ~sane value until calibrate_delay() runs */
 	loops_per_jiffy = 50000000/HZ;
@@ -245,11 +264,16 @@
 		_chrp_type = _CHRP_IBM;
 	} else if (machine && strncmp(machine, "MOT", 3) == 0) {
 		_chrp_type = _CHRP_Motorola;
+	} else if (machine && strncmp(machine, "TotalImpact,BRIQ-1", 18) == 0) {
+		_chrp_type = _CHRP_briq;
+		/* Map the SPOR register on briq and change the restart hook */
+		briq_SPOR = (unsigned int *)ioremap(0xff0000e8, 4);
+		ppc_md.restart = briq_restart;
 	} else {
 		/* Let's assume it is an IBM chrp if all else fails */
 		_chrp_type = _CHRP_IBM;
 	}
-	printk("chrp type = %x\n", _chrp_type);
+	printk("chrp type = %x [%s]\n", _chrp_type, chrp_names[_chrp_type]);
 
 	rtas_initialize();
 	if (rtas_token("display-character") >= 0)
@@ -328,7 +352,7 @@
 	struct device_node *np, *root;
 	int len, i, j;
 	int isu_size, idu_size;
-	unsigned int *iranges, *opprop = NULL;
+	const unsigned int *iranges, *opprop = NULL;
 	int oplen = 0;
 	unsigned long opaddr;
 	int na = 1;
@@ -338,8 +362,7 @@
 		return;
 	root = of_find_node_by_path("/");
 	if (root) {
-		opprop = (unsigned int *) get_property
-			(root, "platform-open-pic", &oplen);
+		opprop = get_property(root, "platform-open-pic", &oplen);
 		na = prom_n_addr_cells(root);
 	}
 	if (opprop && oplen >= na * sizeof(unsigned int)) {
@@ -356,7 +379,7 @@
 
 	printk(KERN_INFO "OpenPIC at %lx\n", opaddr);
 
-	iranges = (unsigned int *) get_property(np, "interrupt-ranges", &len);
+	iranges = get_property(np, "interrupt-ranges", &len);
 	if (iranges == NULL)
 		len = 0;	/* non-distributed mpic */
 	else
@@ -442,8 +465,8 @@
 	 * from anyway
 	 */
 	for (np = find_devices("pci"); np != NULL; np = np->next) {
-		unsigned int *addrp = (unsigned int *)
-			get_property(np, "8259-interrupt-acknowledge", NULL);
+		const unsigned int *addrp = get_property(np,
+				"8259-interrupt-acknowledge", NULL);
 
 		if (addrp == NULL)
 			continue;
@@ -502,7 +525,7 @@
 chrp_init2(void)
 {
 	struct device_node *device;
-	unsigned int *p = NULL;
+	const unsigned int *p = NULL;
 
 #ifdef CONFIG_NVRAM
 	chrp_nvram_init();
@@ -520,8 +543,7 @@
 	 */
 	device = find_devices("rtas");
 	if (device)
-		p = (unsigned int *) get_property
-			(device, "rtas-event-scan-rate", NULL);
+		p = get_property(device, "rtas-event-scan-rate", NULL);
 	if (p && *p) {
 		/*
 		 * Arrange to call chrp_event_scan at least *p times
diff --git a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c
index ed00ed2..673ee69 100644
--- a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c
+++ b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c
@@ -95,7 +95,7 @@
 {
 	struct pci_controller *hose;
 	struct device_node *node;
-	unsigned int *interrupt;
+	const unsigned int *interrupt;
 	int busnr;
 	int len;
 	u8 slot;
@@ -112,7 +112,7 @@
 	if (!node)
 		printk(KERN_ERR "No pci node found\n");
 
-	interrupt = (unsigned int *) get_property(node, "interrupt-map", &len);
+	interrupt = get_property(node, "interrupt-map", &len);
 	slot = find_slot_by_devfn(interrupt, dev->devfn);
 	pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
 	if (pin == 0 || pin > 4)
@@ -141,9 +141,9 @@
 
 	cpu = of_find_node_by_type(NULL, "cpu");
 	if (cpu != 0) {
-		unsigned int *fp;
+		const unsigned int *fp;
 
-		fp = (int *)get_property(cpu, "clock-frequency", NULL);
+		fp = get_property(cpu, "clock-frequency", NULL);
 		if (fp != 0)
 			loops_per_jiffy = *fp / HZ;
 		else
diff --git a/arch/powerpc/platforms/iseries/Kconfig b/arch/powerpc/platforms/iseries/Kconfig
index 3d957a3..887b688 100644
--- a/arch/powerpc/platforms/iseries/Kconfig
+++ b/arch/powerpc/platforms/iseries/Kconfig
@@ -3,13 +3,17 @@
 	depends on PPC_ISERIES
 
 config VIOCONS
-	tristate "iSeries Virtual Console Support"
+	tristate "iSeries Virtual Console Support (Obsolete)"
+	help
+	  This is the old virtual console driver for legacy iSeries.
+	  You should use the iSeries Hypervisor Virtual Console
+	  support instead.
 
 config VIODASD
 	tristate "iSeries Virtual I/O disk support"
 	help
 	  If you are running on an iSeries system and you want to use
- 	  virtual disks created and managed by OS/400, say Y.
+	  virtual disks created and managed by OS/400, say Y.
 
 config VIOCD
 	tristate "iSeries Virtual I/O CD support"
diff --git a/arch/powerpc/platforms/iseries/dt.c b/arch/powerpc/platforms/iseries/dt.c
index d194140..e305dee 100644
--- a/arch/powerpc/platforms/iseries/dt.c
+++ b/arch/powerpc/platforms/iseries/dt.c
@@ -1,5 +1,6 @@
 /*
- *    Copyright (c) 2005-2006 Michael Ellerman, IBM Corporation
+ *    Copyright (C) 2005-2006 Michael Ellerman, IBM Corporation
+ *    Copyright (C) 2000-2004, IBM Corporation
  *
  *    Description:
  *      This file contains all the routines to build a flattened device
@@ -33,13 +34,13 @@
 #include <asm/iseries/hv_types.h>
 #include <asm/iseries/hv_lp_config.h>
 #include <asm/iseries/hv_call_xm.h>
-#include <asm/iseries/it_exp_vpd_panel.h>
 #include <asm/udbg.h>
 
 #include "processor_vpd.h"
 #include "call_hpt.h"
 #include "call_pci.h"
 #include "pci.h"
+#include "it_exp_vpd_panel.h"
 
 #ifdef DEBUG
 #define DBG(fmt...) udbg_printf(fmt)
@@ -76,6 +77,43 @@
 static char __initdata device_type_vdevice[] = "vdevice";
 static char __initdata device_type_vscsi[] = "vscsi";
 
+
+/* EBCDIC to ASCII conversion routines */
+
+static unsigned char __init e2a(unsigned char x)
+{
+	switch (x) {
+	case 0x81 ... 0x89:
+		return x - 0x81 + 'a';
+	case 0x91 ... 0x99:
+		return x - 0x91 + 'j';
+	case 0xA2 ... 0xA9:
+		return x - 0xA2 + 's';
+	case 0xC1 ... 0xC9:
+		return x - 0xC1 + 'A';
+	case 0xD1 ... 0xD9:
+		return x - 0xD1 + 'J';
+	case 0xE2 ... 0xE9:
+		return x - 0xE2 + 'S';
+	case 0xF0 ... 0xF9:
+		return x - 0xF0 + '0';
+	}
+	return ' ';
+}
+
+static unsigned char * __init strne2a(unsigned char *dest,
+		const unsigned char *src, size_t n)
+{
+	int i;
+
+	n = strnlen(src, n);
+
+	for (i = 0; i < n; i++)
+		dest[i] = e2a(src[i]);
+
+	return dest;
+}
+
 static struct iseries_flat_dt * __init dt_init(void)
 {
 	struct iseries_flat_dt *dt;
@@ -298,7 +336,8 @@
 	dt_prop_u32(dt, "#address-cells", 1);
 	dt_prop_u32(dt, "#size-cells", 0);
 
-	dt_do_vdevice(dt, "vty", reg, -1, device_type_serial, NULL, 1);
+	dt_do_vdevice(dt, "vty", reg, -1, device_type_serial,
+			"IBM,iSeries-vty", 1);
 	reg++;
 
 	dt_do_vdevice(dt, "v-scsi", reg, -1, device_type_vscsi,
diff --git a/arch/powerpc/platforms/iseries/hvlpconfig.c b/arch/powerpc/platforms/iseries/hvlpconfig.c
index 663a1af..f0475f0 100644
--- a/arch/powerpc/platforms/iseries/hvlpconfig.c
+++ b/arch/powerpc/platforms/iseries/hvlpconfig.c
@@ -18,9 +18,22 @@
 
 #include <linux/module.h>
 #include <asm/iseries/hv_lp_config.h>
+#include "it_lp_naca.h"
 
 HvLpIndex HvLpConfig_getLpIndex_outline(void)
 {
 	return HvLpConfig_getLpIndex();
 }
 EXPORT_SYMBOL(HvLpConfig_getLpIndex_outline);
+
+HvLpIndex HvLpConfig_getLpIndex(void)
+{
+	return itLpNaca.xLpIndex;
+}
+EXPORT_SYMBOL(HvLpConfig_getLpIndex);
+
+HvLpIndex HvLpConfig_getPrimaryLpIndex(void)
+{
+	return itLpNaca.xPrimaryLpIndex;
+}
+EXPORT_SYMBOL_GPL(HvLpConfig_getPrimaryLpIndex);
diff --git a/arch/powerpc/platforms/iseries/iommu.c b/arch/powerpc/platforms/iseries/iommu.c
index e3bd201..f4cbbcf 100644
--- a/arch/powerpc/platforms/iseries/iommu.c
+++ b/arch/powerpc/platforms/iseries/iommu.c
@@ -88,6 +88,23 @@
 }
 
 /*
+ * Structure passed to HvCallXm_getTceTableParms
+ */
+struct iommu_table_cb {
+	unsigned long	itc_busno;	/* Bus number for this tce table */
+	unsigned long	itc_start;	/* Will be NULL for secondary */
+	unsigned long	itc_totalsize;	/* Size (in pages) of whole table */
+	unsigned long	itc_offset;	/* Index into real tce table of the
+					   start of our section */
+	unsigned long	itc_size;	/* Size (in pages) of our section */
+	unsigned long	itc_index;	/* Index of this tce table */
+	unsigned short	itc_maxtables;	/* Max num of tables for partition */
+	unsigned char	itc_virtbus;	/* Flag to indicate virtual bus */
+	unsigned char	itc_slotno;	/* IOA Tce Slot Index */
+	unsigned char	itc_rsvd[4];
+};
+
+/*
  * Call Hv with the architected data structure to get TCE table info.
  * info. Put the returned data into the Linux representation of the
  * TCE table data.
@@ -162,7 +179,7 @@
 {
 	struct iommu_table *tbl;
 	struct pci_dn *pdn = PCI_DN(dn);
-	u32 *lsn = (u32 *)get_property(dn, "linux,logical-slot-number", NULL);
+	const u32 *lsn = get_property(dn, "linux,logical-slot-number", NULL);
 
 	BUG_ON(lsn == NULL);
 
diff --git a/include/asm-powerpc/iseries/it_exp_vpd_panel.h b/arch/powerpc/platforms/iseries/it_exp_vpd_panel.h
similarity index 89%
rename from include/asm-powerpc/iseries/it_exp_vpd_panel.h
rename to arch/powerpc/platforms/iseries/it_exp_vpd_panel.h
index 304a609..6de9097 100644
--- a/include/asm-powerpc/iseries/it_exp_vpd_panel.h
+++ b/arch/powerpc/platforms/iseries/it_exp_vpd_panel.h
@@ -15,8 +15,8 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
-#ifndef _ASM_POWERPC_ISERIES_IT_EXT_VPD_PANEL_H
-#define _ASM_POWERPC_ISERIES_IT_EXT_VPD_PANEL_H
+#ifndef _PLATFORMS_ISERIES_IT_EXT_VPD_PANEL_H
+#define _PLATFORMS_ISERIES_IT_EXT_VPD_PANEL_H
 
 /*
  *	This struct maps the panel information
@@ -48,4 +48,4 @@
 
 extern struct ItExtVpdPanel	xItExtVpdPanel;
 
-#endif /* _ASM_POWERPC_ISERIES_IT_EXT_VPD_PANEL_H */
+#endif /* _PLATFORMS_ISERIES_IT_EXT_VPD_PANEL_H */
diff --git a/include/asm-powerpc/iseries/it_lp_naca.h b/arch/powerpc/platforms/iseries/it_lp_naca.h
similarity index 95%
rename from include/asm-powerpc/iseries/it_lp_naca.h
rename to arch/powerpc/platforms/iseries/it_lp_naca.h
index 4fdcf05..9bbf589 100644
--- a/include/asm-powerpc/iseries/it_lp_naca.h
+++ b/arch/powerpc/platforms/iseries/it_lp_naca.h
@@ -15,8 +15,8 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
-#ifndef _ASM_POWERPC_ISERIES_IT_LP_NACA_H
-#define _ASM_POWERPC_ISERIES_IT_LP_NACA_H
+#ifndef _PLATFORMS_ISERIES_IT_LP_NACA_H
+#define _PLATFORMS_ISERIES_IT_LP_NACA_H
 
 #include <linux/types.h>
 
@@ -77,4 +77,4 @@
 #define ITLPNACA_HWSYNCEDTBS	0x20	/* Hardware synced TBs */
 #define ITLPNACA_HMTINT		0x10	/* Utilize MHT for interrupts */
 
-#endif /* _ASM_POWERPC_ISERIES_IT_LP_NACA_H */
+#endif /* _PLATFORMS_ISERIES_IT_LP_NACA_H */
diff --git a/arch/powerpc/platforms/iseries/lpardata.c b/arch/powerpc/platforms/iseries/lpardata.c
index a776944..8162049 100644
--- a/arch/powerpc/platforms/iseries/lpardata.c
+++ b/arch/powerpc/platforms/iseries/lpardata.c
@@ -13,12 +13,10 @@
 #include <asm/processor.h>
 #include <asm/ptrace.h>
 #include <asm/abs_addr.h>
-#include <asm/iseries/it_lp_naca.h>
 #include <asm/lppaca.h>
 #include <asm/iseries/it_lp_reg_save.h>
 #include <asm/paca.h>
 #include <asm/iseries/lpar_map.h>
-#include <asm/iseries/it_exp_vpd_panel.h>
 #include <asm/iseries/it_lp_queue.h>
 
 #include "naca.h"
@@ -27,6 +25,8 @@
 #include "ipl_parms.h"
 #include "processor_vpd.h"
 #include "release_data.h"
+#include "it_exp_vpd_panel.h"
+#include "it_lp_naca.h"
 
 /* The HvReleaseData is the root of the information shared between
  * the hypervisor and Linux.
@@ -127,14 +127,12 @@
 		(u64)instruction_access_slb_iSeries /* 0x480 I-SLB */
 	}
 };
-EXPORT_SYMBOL(itLpNaca);
 
 /* May be filled in by the hypervisor so cannot end up in the BSS */
 struct ItIplParmsReal xItIplParmsReal __attribute__((__section__(".data")));
 
 /* May be filled in by the hypervisor so cannot end up in the BSS */
 struct ItExtVpdPanel xItExtVpdPanel __attribute__((__section__(".data")));
-EXPORT_SYMBOL(xItExtVpdPanel);
 
 #define maxPhysicalProcessors 32
 
diff --git a/arch/powerpc/platforms/iseries/lpevents.c b/arch/powerpc/platforms/iseries/lpevents.c
index 2a9f81e..98c1c24 100644
--- a/arch/powerpc/platforms/iseries/lpevents.c
+++ b/arch/powerpc/platforms/iseries/lpevents.c
@@ -20,7 +20,7 @@
 #include <asm/iseries/it_lp_queue.h>
 #include <asm/iseries/hv_lp_event.h>
 #include <asm/iseries/hv_call_event.h>
-#include <asm/iseries/it_lp_naca.h>
+#include "it_lp_naca.h"
 
 /*
  * The LpQueue is used to pass event data from the hypervisor to
diff --git a/arch/powerpc/platforms/iseries/main_store.h b/arch/powerpc/platforms/iseries/main_store.h
index 74f6889..1a7a3f5 100644
--- a/arch/powerpc/platforms/iseries/main_store.h
+++ b/arch/powerpc/platforms/iseries/main_store.h
@@ -61,9 +61,9 @@
 };
 
 /* Main Store VPD for Power4 */
-struct IoHriMainStoreChipInfo1 {
-	u32	chipMfgID	__attribute((packed));
-	char	chipECLevel[4]	__attribute((packed));
+struct __attribute((packed)) IoHriMainStoreChipInfo1 {
+	u32	chipMfgID;
+	char	chipECLevel[4];
 };
 
 struct IoHriMainStoreVpdIdData {
@@ -73,72 +73,72 @@
 	char	serialNumber[12];
 };
 
-struct IoHriMainStoreVpdFruData {
-	char	fruLabel[8]	__attribute((packed));
-	u8	numberOfSlots	__attribute((packed));
-	u8	pluggingType	__attribute((packed));
-	u16	slotMapIndex	__attribute((packed));
+struct	__attribute((packed)) IoHriMainStoreVpdFruData {
+	char	fruLabel[8];
+	u8	numberOfSlots;
+	u8	pluggingType;
+	u16	slotMapIndex;
 };
 
-struct IoHriMainStoreAdrRangeBlock {
-	void	*blockStart      __attribute((packed));
-	void	*blockEnd        __attribute((packed));
-	u32	blockProcChipId __attribute((packed));
+struct  __attribute((packed)) IoHriMainStoreAdrRangeBlock {
+	void	*blockStart;
+	void	*blockEnd;
+	u32	blockProcChipId;
 };
 
 #define MaxAreaAdrRangeBlocks 4
 
-struct IoHriMainStoreArea4 {
-	u32	msVpdFormat			__attribute((packed));
-	u8	containedVpdType		__attribute((packed));
-	u8	reserved1			__attribute((packed));
-	u16	reserved2			__attribute((packed));
+struct __attribute((packed)) IoHriMainStoreArea4 {
+	u32	msVpdFormat;
+	u8	containedVpdType;
+	u8	reserved1;
+	u16	reserved2;
 
-	u64	msExists			__attribute((packed));
-	u64	msFunctional			__attribute((packed));
+	u64	msExists;
+	u64	msFunctional;
 
-	u32	memorySize			__attribute((packed));
-	u32	procNodeId			__attribute((packed));
+	u32	memorySize;
+	u32	procNodeId;
 
-	u32	numAdrRangeBlocks		__attribute((packed));
-	struct IoHriMainStoreAdrRangeBlock xAdrRangeBlock[MaxAreaAdrRangeBlocks]	__attribute((packed));
+	u32	numAdrRangeBlocks;
+	struct IoHriMainStoreAdrRangeBlock xAdrRangeBlock[MaxAreaAdrRangeBlocks];
 
-	struct IoHriMainStoreChipInfo1	chipInfo0	__attribute((packed));
-	struct IoHriMainStoreChipInfo1	chipInfo1	__attribute((packed));
-	struct IoHriMainStoreChipInfo1	chipInfo2	__attribute((packed));
-	struct IoHriMainStoreChipInfo1	chipInfo3	__attribute((packed));
-	struct IoHriMainStoreChipInfo1	chipInfo4	__attribute((packed));
-	struct IoHriMainStoreChipInfo1	chipInfo5	__attribute((packed));
-	struct IoHriMainStoreChipInfo1	chipInfo6	__attribute((packed));
-	struct IoHriMainStoreChipInfo1	chipInfo7	__attribute((packed));
+	struct IoHriMainStoreChipInfo1	chipInfo0;
+	struct IoHriMainStoreChipInfo1	chipInfo1;
+	struct IoHriMainStoreChipInfo1	chipInfo2;
+	struct IoHriMainStoreChipInfo1	chipInfo3;
+	struct IoHriMainStoreChipInfo1	chipInfo4;
+	struct IoHriMainStoreChipInfo1	chipInfo5;
+	struct IoHriMainStoreChipInfo1	chipInfo6;
+	struct IoHriMainStoreChipInfo1	chipInfo7;
 
-	void	*msRamAreaArray			__attribute((packed));
-	u32	msRamAreaArrayNumEntries	__attribute((packed));
-	u32	msRamAreaArrayEntrySize		__attribute((packed));
+	void	*msRamAreaArray;
+	u32	msRamAreaArrayNumEntries;
+	u32	msRamAreaArrayEntrySize;
 
-	u32	numaDimmExists			__attribute((packed));
-	u32	numaDimmFunctional		__attribute((packed));
-	void	*numaDimmArray			__attribute((packed));
-	u32	numaDimmArrayNumEntries		__attribute((packed));
-	u32	numaDimmArrayEntrySize		__attribute((packed));
+	u32	numaDimmExists;
+	u32	numaDimmFunctional;
+	void	*numaDimmArray;
+	u32	numaDimmArrayNumEntries;
+	u32	numaDimmArrayEntrySize;
 
-	struct IoHriMainStoreVpdIdData idData	__attribute((packed));
+	struct IoHriMainStoreVpdIdData idData;
 
-	u64	powerData			__attribute((packed));
-	u64	cardAssemblyPartNum		__attribute((packed));
-	u64	chipSerialNum			__attribute((packed));
+	u64	powerData;
+	u64	cardAssemblyPartNum;
+	u64	chipSerialNum;
 
-	u64	reserved3			__attribute((packed));
-	char	reserved4[16]			__attribute((packed));
+	u64	reserved3;
+	char	reserved4[16];
 
-	struct IoHriMainStoreVpdFruData fruData	__attribute((packed));
+	struct IoHriMainStoreVpdFruData fruData;
 
-	u8	vpdPortNum			__attribute((packed));
-	u8	reserved5			__attribute((packed));
-	u8	frameId				__attribute((packed));
-	u8	rackUnit			__attribute((packed));
-	char	asciiKeywordVpd[256]		__attribute((packed));
-	u32	reserved6			__attribute((packed));
+	u8	vpdPortNum;
+	u8	reserved5;
+	u8	frameId;
+	u8	rackUnit;
+	char	asciiKeywordVpd[256];
+	u32	reserved6;
 };
 
 
diff --git a/arch/powerpc/platforms/iseries/pci.c b/arch/powerpc/platforms/iseries/pci.c
index 35bcc98..f4d427a 100644
--- a/arch/powerpc/platforms/iseries/pci.c
+++ b/arch/powerpc/platforms/iseries/pci.c
@@ -176,12 +176,12 @@
 	}
 	while ((node = of_get_next_child(root, node)) != NULL) {
 		HvBusNumber bus;
-		u32 *busp;
+		const u32 *busp;
 
 		if ((node->type == NULL) || (strcmp(node->type, "pci") != 0))
 			continue;
 
-		busp = (u32 *)get_property(node, "bus-range", NULL);
+		busp = get_property(node, "bus-range", NULL);
 		if (busp == NULL)
 			continue;
 		bus = *busp;
@@ -221,10 +221,9 @@
 
 		if (node != NULL) {
 			struct pci_dn *pdn = PCI_DN(node);
-			u32 *agent;
+			const u32 *agent;
 
-			agent = (u32 *)get_property(node, "linux,agent-id",
-					NULL);
+			agent = get_property(node, "linux,agent-id", NULL);
 			if ((pdn != NULL) && (agent != NULL)) {
 				u8 irq = iSeries_allocate_IRQ(pdn->busno, 0,
 						pdn->bussubno);
diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c
index c9605d7..7f19530 100644
--- a/arch/powerpc/platforms/iseries/setup.c
+++ b/arch/powerpc/platforms/iseries/setup.c
@@ -59,6 +59,7 @@
 #include "irq.h"
 #include "vpd_areas.h"
 #include "processor_vpd.h"
+#include "it_lp_naca.h"
 #include "main_store.h"
 #include "call_sm.h"
 #include "call_hpt.h"
diff --git a/arch/powerpc/platforms/iseries/viopath.c b/arch/powerpc/platforms/iseries/viopath.c
index 622a301..9baa4ee 100644
--- a/arch/powerpc/platforms/iseries/viopath.c
+++ b/arch/powerpc/platforms/iseries/viopath.c
@@ -41,8 +41,8 @@
 
 #include <asm/system.h>
 #include <asm/uaccess.h>
+#include <asm/prom.h>
 #include <asm/iseries/hv_types.h>
-#include <asm/iseries/it_exp_vpd_panel.h>
 #include <asm/iseries/hv_lp_event.h>
 #include <asm/iseries/hv_lp_config.h>
 #include <asm/iseries/mf.h>
@@ -116,6 +116,8 @@
 	dma_addr_t handle;
 	HvLpEvent_Rc hvrc;
 	DECLARE_MUTEX_LOCKED(Semaphore);
+	struct device_node *node;
+	const char *sysid;
 
 	buf = kmalloc(HW_PAGE_SIZE, GFP_KERNEL);
 	if (!buf)
@@ -143,20 +145,26 @@
 
 	buf[HW_PAGE_SIZE-1] = '\0';
 	seq_printf(m, "%s", buf);
-	seq_printf(m, "AVAILABLE_VETH=%x\n", vlanMap);
-	seq_printf(m, "SRLNBR=%c%c%c%c%c%c%c\n",
-		   e2a(xItExtVpdPanel.mfgID[2]),
-		   e2a(xItExtVpdPanel.mfgID[3]),
-		   e2a(xItExtVpdPanel.systemSerial[1]),
-		   e2a(xItExtVpdPanel.systemSerial[2]),
-		   e2a(xItExtVpdPanel.systemSerial[3]),
-		   e2a(xItExtVpdPanel.systemSerial[4]),
-		   e2a(xItExtVpdPanel.systemSerial[5]));
 
 	dma_unmap_single(iSeries_vio_dev, handle, HW_PAGE_SIZE,
 			 DMA_FROM_DEVICE);
 	kfree(buf);
 
+	seq_printf(m, "AVAILABLE_VETH=%x\n", vlanMap);
+
+	node = of_find_node_by_path("/");
+	sysid = NULL;
+	if (node != NULL)
+		sysid = get_property(node, "system-id", NULL);
+
+	if (sysid == NULL)
+		seq_printf(m, "SRLNBR=<UNKNOWN>\n");
+	else
+		/* Skip "IBM," on front of serial number, see dt.c */
+		seq_printf(m, "SRLNBR=%s\n", sysid + 4);
+
+	of_node_put(node);
+
 	return 0;
 }
 
diff --git a/arch/powerpc/platforms/iseries/vpdinfo.c b/arch/powerpc/platforms/iseries/vpdinfo.c
index 23a6d1e..9f83878 100644
--- a/arch/powerpc/platforms/iseries/vpdinfo.c
+++ b/arch/powerpc/platforms/iseries/vpdinfo.c
@@ -188,7 +188,7 @@
 {
 	u8 *TagPtr = VpdData;
 	int DataLen = VpdDataLen - 3;
-	u8 PhbId;
+	u8 PhbId = 0xff;
 
 	while ((*TagPtr != VpdEndOfAreaTag) && (DataLen > 0)) {
 		int AreaLen = *(TagPtr + 1) + (*(TagPtr + 2) * 256);
@@ -205,15 +205,16 @@
 	}
 }
 
-static void __init iSeries_Get_Location_Code(u16 bus, HvAgentId agent,
+static int __init iSeries_Get_Location_Code(u16 bus, HvAgentId agent,
 		u8 *frame, char card[4])
 {
+	int status = 0;
 	int BusVpdLen = 0;
 	u8 *BusVpdPtr = kmalloc(BUS_VPDSIZE, GFP_KERNEL);
 
 	if (BusVpdPtr == NULL) {
 		printk("PCI: Bus VPD Buffer allocation failure.\n");
-		return;
+		return 0;
 	}
 	BusVpdLen = HvCallPci_getBusVpd(bus, iseries_hv_addr(BusVpdPtr),
 					BUS_VPDSIZE);
@@ -228,8 +229,10 @@
 		goto out_free;
 	}
 	iSeries_Parse_Vpd(BusVpdPtr, BusVpdLen, agent, frame, card);
+	status = 1;
 out_free:
 	kfree(BusVpdPtr);
+	return status;
 }
 
 /*
@@ -246,7 +249,7 @@
 	struct device_node *DevNode = PciDev->sysdata;
 	struct pci_dn *pdn;
 	u16 bus;
-	u8 frame;
+	u8 frame = 0;
 	char card[4];
 	HvSubBusNumber subbus;
 	HvAgentId agent;
@@ -262,10 +265,11 @@
 	subbus = pdn->bussubno;
 	agent = ISERIES_PCI_AGENTID(ISERIES_GET_DEVICE_FROM_SUBBUS(subbus),
 			ISERIES_GET_FUNCTION_FROM_SUBBUS(subbus));
-	iSeries_Get_Location_Code(bus, agent, &frame, card);
 
-	printk("%d. PCI: Bus%3d, Device%3d, Vendor %04X Frame%3d, Card %4s  ",
-			count, bus, PCI_SLOT(PciDev->devfn), PciDev->vendor,
-			frame, card);
-	printk("0x%04X\n", (int)(PciDev->class >> 8));
+	if (iSeries_Get_Location_Code(bus, agent, &frame, card)) {
+		printk("%d. PCI: Bus%3d, Device%3d, Vendor %04X Frame%3d, "
+			"Card %4s  0x%04X\n", count, bus,
+			PCI_SLOT(PciDev->devfn), PciDev->vendor, frame,
+			card, (int)(PciDev->class >> 8));
+	}
 }
diff --git a/arch/powerpc/platforms/maple/pci.c b/arch/powerpc/platforms/maple/pci.c
index 63a1670..dc05af5 100644
--- a/arch/powerpc/platforms/maple/pci.c
+++ b/arch/powerpc/platforms/maple/pci.c
@@ -38,16 +38,16 @@
 static int __init fixup_one_level_bus_range(struct device_node *node, int higher)
 {
 	for (; node != 0;node = node->sibling) {
-		int * bus_range;
-		unsigned int *class_code;
+		const int *bus_range;
+		const unsigned int *class_code;
 		int len;
 
 		/* For PCI<->PCI bridges or CardBus bridges, we go down */
-		class_code = (unsigned int *) get_property(node, "class-code", NULL);
+		class_code = get_property(node, "class-code", NULL);
 		if (!class_code || ((*class_code >> 8) != PCI_CLASS_BRIDGE_PCI &&
 			(*class_code >> 8) != PCI_CLASS_BRIDGE_CARDBUS))
 			continue;
-		bus_range = (int *) get_property(node, "bus-range", &len);
+		bus_range = get_property(node, "bus-range", &len);
 		if (bus_range != NULL && len > 2 * sizeof(int)) {
 			if (bus_range[1] > higher)
 				higher = bus_range[1];
@@ -65,16 +65,18 @@
  */
 static void __init fixup_bus_range(struct device_node *bridge)
 {
-	int * bus_range;
+	int *bus_range;
+	struct property *prop;
 	int len;
 
 	/* Lookup the "bus-range" property for the hose */
-	bus_range = (int *) get_property(bridge, "bus-range", &len);
-	if (bus_range == NULL || len < 2 * sizeof(int)) {
+	prop = of_find_property(bridge, "bus-range", &len);
+	if (prop == NULL  || prop->value == NULL || len < 2 * sizeof(int)) {
 		printk(KERN_WARNING "Can't get bus-range for %s\n",
 			       bridge->full_name);
 		return;
 	}
+	bus_range = (int *)prop->value;
 	bus_range[1] = fixup_one_level_bus_range(bridge->child, bus_range[1]);
 }
 
@@ -314,12 +316,12 @@
 	int len;
 	struct pci_controller *hose;
 	char* disp_name;
-	int *bus_range;
+	const int *bus_range;
 	int primary = 1;
 
 	DBG("Adding PCI host bridge %s\n", dev->full_name);
 
-	bus_range = (int *) get_property(dev, "bus-range", &len);
+	bus_range = get_property(dev, "bus-range", &len);
 	if (bus_range == NULL || len < 2 * sizeof(int)) {
 		printk(KERN_WARNING "Can't get bus-range for %s, assume bus 0\n",
 		dev->full_name);
diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c
index 57567df..fe6b9bf 100644
--- a/arch/powerpc/platforms/maple/setup.c
+++ b/arch/powerpc/platforms/maple/setup.c
@@ -99,8 +99,7 @@
 static void maple_restart(char *cmd)
 {
 	unsigned int maple_nvram_base;
-	unsigned int maple_nvram_offset;
-	unsigned int maple_nvram_command;
+	const unsigned int *maple_nvram_offset, *maple_nvram_command;
 	struct device_node *sp;
 
 	maple_nvram_base = maple_find_nvram_base();
@@ -113,14 +112,12 @@
 		printk(KERN_EMERG "Maple: Unable to find Service Processor\n");
 		goto fail;
 	}
-	maple_nvram_offset = *(unsigned int*) get_property(sp,
-			"restart-addr", NULL);
-	maple_nvram_command = *(unsigned int*) get_property(sp,
-			"restart-value", NULL);
+	maple_nvram_offset = get_property(sp, "restart-addr", NULL);
+	maple_nvram_command = get_property(sp, "restart-value", NULL);
 	of_node_put(sp);
 
 	/* send command */
-	outb_p(maple_nvram_command, maple_nvram_base + maple_nvram_offset);
+	outb_p(*maple_nvram_command, maple_nvram_base + *maple_nvram_offset);
 	for (;;) ;
  fail:
 	printk(KERN_EMERG "Maple: Manual Restart Required\n");
@@ -129,8 +126,7 @@
 static void maple_power_off(void)
 {
 	unsigned int maple_nvram_base;
-	unsigned int maple_nvram_offset;
-	unsigned int maple_nvram_command;
+	const unsigned int *maple_nvram_offset, *maple_nvram_command;
 	struct device_node *sp;
 
 	maple_nvram_base = maple_find_nvram_base();
@@ -143,14 +139,12 @@
 		printk(KERN_EMERG "Maple: Unable to find Service Processor\n");
 		goto fail;
 	}
-	maple_nvram_offset = *(unsigned int*) get_property(sp,
-			"power-off-addr", NULL);
-	maple_nvram_command = *(unsigned int*) get_property(sp,
-			"power-off-value", NULL);
+	maple_nvram_offset = get_property(sp, "power-off-addr", NULL);
+	maple_nvram_command = get_property(sp, "power-off-value", NULL);
 	of_node_put(sp);
 
 	/* send command */
-	outb_p(maple_nvram_command, maple_nvram_base + maple_nvram_offset);
+	outb_p(*maple_nvram_command, maple_nvram_base + *maple_nvram_offset);
 	for (;;) ;
  fail:
 	printk(KERN_EMERG "Maple: Manual Power-Down Required\n");
@@ -211,7 +205,7 @@
 static void __init maple_init_IRQ(void)
 {
 	struct device_node *root, *np, *mpic_node = NULL;
-	unsigned int *opprop;
+	const unsigned int *opprop;
 	unsigned long openpic_addr = 0;
 	int naddr, n, i, opplen, has_isus = 0;
 	struct mpic *mpic;
@@ -241,8 +235,7 @@
 	/* Find address list in /platform-open-pic */
 	root = of_find_node_by_path("/");
 	naddr = prom_n_addr_cells(root);
-	opprop = (unsigned int *) get_property(root, "platform-open-pic",
-					       &opplen);
+	opprop = get_property(root, "platform-open-pic", &opplen);
 	if (opprop != 0) {
 		openpic_addr = of_read_number(opprop, naddr);
 		has_isus = (opplen > naddr);
diff --git a/arch/powerpc/platforms/powermac/backlight.c b/arch/powerpc/platforms/powermac/backlight.c
index d664154..afa593a 100644
--- a/arch/powerpc/platforms/powermac/backlight.c
+++ b/arch/powerpc/platforms/powermac/backlight.c
@@ -60,7 +60,8 @@
 	struct device_node* bk_node = find_devices("backlight");
 
 	if (bk_node) {
-		char *prop = get_property(bk_node, "backlight-control", NULL);
+		const char *prop = get_property(bk_node,
+				"backlight-control", NULL);
 		if (prop && strncmp(prop, type, strlen(type)) == 0)
 			return 1;
 	}
diff --git a/arch/powerpc/platforms/powermac/cpufreq_32.c b/arch/powerpc/platforms/powermac/cpufreq_32.c
index 62926248..c2b6b41 100644
--- a/arch/powerpc/platforms/powermac/cpufreq_32.c
+++ b/arch/powerpc/platforms/powermac/cpufreq_32.c
@@ -421,7 +421,7 @@
 
 static u32 read_gpio(struct device_node *np)
 {
-	u32 *reg = (u32 *)get_property(np, "reg", NULL);
+	const u32 *reg = get_property(np, "reg", NULL);
 	u32 offset;
 
 	if (reg == NULL)
@@ -497,7 +497,7 @@
 								"frequency-gpio");
 	struct device_node *slew_done_gpio_np = of_find_node_by_name(NULL,
 								     "slewing-done");
-	u32 *value;
+	const u32 *value;
 
 	/*
 	 * Check to see if it's GPIO driven or PMU only
@@ -519,15 +519,15 @@
 	 */
 	if (frequency_gpio && slew_done_gpio) {
 		int lenp, rc;
-		u32 *freqs, *ratio;
+		const u32 *freqs, *ratio;
 
-		freqs = (u32 *)get_property(cpunode, "bus-frequencies", &lenp);
+		freqs = get_property(cpunode, "bus-frequencies", &lenp);
 		lenp /= sizeof(u32);
 		if (freqs == NULL || lenp != 2) {
 			printk(KERN_ERR "cpufreq: bus-frequencies incorrect or missing\n");
 			return 1;
 		}
-		ratio = (u32 *)get_property(cpunode, "processor-to-bus-ratio*2", NULL);
+		ratio = get_property(cpunode, "processor-to-bus-ratio*2", NULL);
 		if (ratio == NULL) {
 			printk(KERN_ERR "cpufreq: processor-to-bus-ratio*2 missing\n");
 			return 1;
@@ -562,7 +562,7 @@
 	/* If we use the PMU, look for the min & max frequencies in the
 	 * device-tree
 	 */
-	value = (u32 *)get_property(cpunode, "min-clock-frequency", NULL);
+	value = get_property(cpunode, "min-clock-frequency", NULL);
 	if (!value)
 		return 1;
 	low_freq = (*value) / 1000;
@@ -571,7 +571,7 @@
 	if (low_freq < 100000)
 		low_freq *= 10;
 
-	value = (u32 *)get_property(cpunode, "max-clock-frequency", NULL);
+	value = get_property(cpunode, "max-clock-frequency", NULL);
 	if (!value)
 		return 1;
 	hi_freq = (*value) / 1000;
@@ -611,13 +611,14 @@
 static int pmac_cpufreq_init_750FX(struct device_node *cpunode)
 {
 	struct device_node *volt_gpio_np;
-	u32 pvr, *value;
+	u32 pvr;
+	const u32 *value;
 
 	if (get_property(cpunode, "dynamic-power-step", NULL) == NULL)
 		return 1;
 
 	hi_freq = cur_freq;
-	value = (u32 *)get_property(cpunode, "reduced-clock-frequency", NULL);
+	value = get_property(cpunode, "reduced-clock-frequency", NULL);
 	if (!value)
 		return 1;
 	low_freq = (*value) / 1000;
@@ -650,7 +651,7 @@
 static int __init pmac_cpufreq_setup(void)
 {
 	struct device_node	*cpunode;
-	u32			*value;
+	const u32		*value;
 
 	if (strstr(cmd_line, "nocpufreq"))
 		return 0;
@@ -661,7 +662,7 @@
 		goto out;
 
 	/* Get current cpu clock freq */
-	value = (u32 *)get_property(cpunode, "clock-frequency", NULL);
+	value = get_property(cpunode, "clock-frequency", NULL);
 	if (!value)
 		goto out;
 	cur_freq = (*value) / 1000;
diff --git a/arch/powerpc/platforms/powermac/cpufreq_64.c b/arch/powerpc/platforms/powermac/cpufreq_64.c
index 7b1156e..167cd3c 100644
--- a/arch/powerpc/platforms/powermac/cpufreq_64.c
+++ b/arch/powerpc/platforms/powermac/cpufreq_64.c
@@ -391,7 +391,8 @@
 	unsigned int psize, ssize;
 	unsigned long max_freq;
 	char *freq_method, *volt_method;
-	u32 *valp, pvr_hi;
+	const u32 *valp;
+	u32 pvr_hi;
 	int use_volts_vdnap = 0;
 	int use_volts_smu = 0;
 	int rc = -ENODEV;
@@ -409,8 +410,7 @@
 	/* Get first CPU node */
 	for (cpunode = NULL;
 	     (cpunode = of_get_next_child(cpus, cpunode)) != NULL;) {
-		u32 *reg =
-			(u32 *)get_property(cpunode, "reg", NULL);
+		const u32 *reg = get_property(cpunode, "reg", NULL);
 		if (reg == NULL || (*reg) != 0)
 			continue;
 		if (!strcmp(cpunode->type, "cpu"))
@@ -422,7 +422,7 @@
 	}
 
 	/* Check 970FX for now */
-	valp = (u32 *)get_property(cpunode, "cpu-version", NULL);
+	valp = get_property(cpunode, "cpu-version", NULL);
 	if (!valp) {
 		DBG("No cpu-version property !\n");
 		goto bail_noprops;
@@ -434,7 +434,7 @@
 	}
 
 	/* Look for the powertune data in the device-tree */
-	g5_pmode_data = (u32 *)get_property(cpunode, "power-mode-data",&psize);
+	g5_pmode_data = get_property(cpunode, "power-mode-data",&psize);
 	if (!g5_pmode_data) {
 		DBG("No power-mode-data !\n");
 		goto bail_noprops;
@@ -442,7 +442,7 @@
 	g5_pmode_max = psize / sizeof(u32) - 1;
 
 	if (use_volts_smu) {
-		struct smu_sdbp_header *shdr;
+		const struct smu_sdbp_header *shdr;
 
 		/* Look for the FVT table */
 		shdr = smu_get_sdb_partition(SMU_SDB_FVT_ID, NULL);
@@ -493,7 +493,7 @@
 	 * half freq in this version. So far, I haven't yet seen a machine
 	 * supporting anything else.
 	 */
-	valp = (u32 *)get_property(cpunode, "clock-frequency", NULL);
+	valp = get_property(cpunode, "clock-frequency", NULL);
 	if (!valp)
 		return -ENODEV;
 	max_freq = (*valp)/1000;
@@ -541,8 +541,8 @@
 static int __init g5_pm72_cpufreq_init(struct device_node *cpus)
 {
 	struct device_node *cpuid = NULL, *hwclock = NULL, *cpunode = NULL;
-	u8 *eeprom = NULL;
-	u32 *valp;
+	const u8 *eeprom = NULL;
+	const u32 *valp;
 	u64 max_freq, min_freq, ih, il;
 	int has_volt = 1, rc = 0;
 
@@ -563,7 +563,7 @@
 	/* Lookup the cpuid eeprom node */
         cpuid = of_find_node_by_path("/u3@0,f8000000/i2c@f8001000/cpuid@a0");
 	if (cpuid != NULL)
-		eeprom = (u8 *)get_property(cpuid, "cpuid", NULL);
+		eeprom = get_property(cpuid, "cpuid", NULL);
 	if (eeprom == NULL) {
 		printk(KERN_ERR "cpufreq: Can't find cpuid EEPROM !\n");
 		rc = -ENODEV;
@@ -573,7 +573,8 @@
 	/* Lookup the i2c hwclock */
 	for (hwclock = NULL;
 	     (hwclock = of_find_node_by_name(hwclock, "i2c-hwclock")) != NULL;){
-		char *loc = get_property(hwclock, "hwctrl-location", NULL);
+		const char *loc = get_property(hwclock,
+				"hwctrl-location", NULL);
 		if (loc == NULL)
 			continue;
 		if (strcmp(loc, "CPU CLOCK"))
@@ -637,7 +638,7 @@
 	 */
 
 	/* Get max frequency from device-tree */
-	valp = (u32 *)get_property(cpunode, "clock-frequency", NULL);
+	valp = get_property(cpunode, "clock-frequency", NULL);
 	if (!valp) {
 		printk(KERN_ERR "cpufreq: Can't find CPU frequency !\n");
 		rc = -ENODEV;
diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c
index f8313bf..13fcaf5 100644
--- a/arch/powerpc/platforms/powermac/feature.c
+++ b/arch/powerpc/platforms/powermac/feature.c
@@ -1058,8 +1058,8 @@
 	if (np == NULL)
 		return -ENODEV;
 	for (np = np->child; np != NULL; np = np->sibling) {
-		u32 *num = (u32 *)get_property(np, "reg", NULL);
-		u32 *rst = (u32 *)get_property(np, "soft-reset", NULL);
+		u32 *num = get_property(np, "reg", NULL);
+		u32 *rst = get_property(np, "soft-reset", NULL);
 		if (num == NULL || rst == NULL)
 			continue;
 		if (param == *num) {
@@ -1087,7 +1087,7 @@
 {
 	struct macio_chip *macio;
 	unsigned long flags;
-	char *prop;
+	const char *prop;
 	int number;
 	u32 reg;
 
@@ -1096,7 +1096,7 @@
 	    macio->type != macio_intrepid)
 		return -ENODEV;
 
-	prop = (char *)get_property(node, "AAPL,clock-id", NULL);
+	prop = get_property(node, "AAPL,clock-id", NULL);
 	if (!prop)
 		return -ENODEV;
 	if (strncmp(prop, "usb0u048", 8) == 0)
@@ -1507,8 +1507,8 @@
 	if (np == NULL)
 		return -ENODEV;
 	for (np = np->child; np != NULL; np = np->sibling) {
-		u32 *num = (u32 *)get_property(np, "reg", NULL);
-		u32 *rst = (u32 *)get_property(np, "soft-reset", NULL);
+		const u32 *num = get_property(np, "reg", NULL);
+		const u32 *rst = get_property(np, "soft-reset", NULL);
 		if (num == NULL || rst == NULL)
 			continue;
 		if (param == *num) {
@@ -2408,7 +2408,7 @@
 	 */
 	dt = find_devices("device-tree");
 	if (dt != NULL)
-		model = (const char *) get_property(dt, "model", NULL);
+		model = get_property(dt, "model", NULL);
 	for(i=0; model && i<(sizeof(pmac_mb_defs)/sizeof(struct pmac_mb_def)); i++) {
 	    if (strcmp(model, pmac_mb_defs[i].model_string) == 0) {
 		pmac_mb = pmac_mb_defs[i];
@@ -2536,7 +2536,7 @@
  */
 static void __init probe_uninorth(void)
 {
-	u32 *addrp;
+	const u32 *addrp;
 	phys_addr_t address;
 	unsigned long actrl;
 
@@ -2555,7 +2555,7 @@
 	if (uninorth_node == NULL)
 		return;
 
-	addrp = (u32 *)get_property(uninorth_node, "reg", NULL);
+	addrp = get_property(uninorth_node, "reg", NULL);
 	if (addrp == NULL)
 		return;
 	address = of_translate_address(uninorth_node, addrp);
@@ -2596,7 +2596,7 @@
 	struct device_node*	node;
 	int			i;
 	volatile u32 __iomem	*base;
-	u32			*addrp, *revp;
+	const u32		*addrp, *revp;
 	phys_addr_t		addr;
 	u64			size;
 
@@ -2639,7 +2639,7 @@
 		return;
 	}
 	if (type == macio_keylargo || type == macio_keylargo2) {
-		u32 *did = (u32 *)get_property(node, "device-id", NULL);
+		const u32 *did = get_property(node, "device-id", NULL);
 		if (*did == 0x00000025)
 			type = macio_pangea;
 		if (*did == 0x0000003e)
@@ -2652,7 +2652,7 @@
 	macio_chips[i].base	= base;
 	macio_chips[i].flags	= MACIO_FLAG_SCCB_ON | MACIO_FLAG_SCCB_ON;
 	macio_chips[i].name	= macio_names[type];
-	revp = (u32 *)get_property(node, "revision-id", NULL);
+	revp = get_property(node, "revision-id", NULL);
 	if (revp)
 		macio_chips[i].rev = *revp;
 	printk(KERN_INFO "Found a %s mac-io controller, rev: %d, mapped at 0x%p\n",
@@ -2695,15 +2695,15 @@
 initial_serial_shutdown(struct device_node *np)
 {
 	int len;
-	struct slot_names_prop {
+	const struct slot_names_prop {
 		int	count;
 		char	name[1];
 	} *slots;
-	char *conn;
+	const char *conn;
 	int port_type = PMAC_SCC_ASYNC;
 	int modem = 0;
 
-	slots = (struct slot_names_prop *)get_property(np, "slot-names", &len);
+	slots = get_property(np, "slot-names", &len);
 	conn = get_property(np, "AAPL,connector", &len);
 	if (conn && (strcmp(conn, "infrared") == 0))
 		port_type = PMAC_SCC_IRDA;
diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c
index 8677f50..c2c7cf7 100644
--- a/arch/powerpc/platforms/powermac/low_i2c.c
+++ b/arch/powerpc/platforms/powermac/low_i2c.c
@@ -477,7 +477,8 @@
 static struct pmac_i2c_host_kw *__init kw_i2c_host_init(struct device_node *np)
 {
 	struct pmac_i2c_host_kw *host;
-	u32			*psteps, *prate, *addrp, steps;
+	const u32		*psteps, *prate, *addrp;
+	u32			steps;
 
 	host = kzalloc(sizeof(struct pmac_i2c_host_kw), GFP_KERNEL);
 	if (host == NULL) {
@@ -490,7 +491,7 @@
 	 * on all i2c keywest nodes so far ... we would have to fallback
 	 * to macio parsing if that wasn't the case
 	 */
-	addrp = (u32 *)get_property(np, "AAPL,address", NULL);
+	addrp = get_property(np, "AAPL,address", NULL);
 	if (addrp == NULL) {
 		printk(KERN_ERR "low_i2c: Can't find address for %s\n",
 		       np->full_name);
@@ -504,13 +505,13 @@
 	host->timeout_timer.function = kw_i2c_timeout;
 	host->timeout_timer.data = (unsigned long)host;
 
-	psteps = (u32 *)get_property(np, "AAPL,address-step", NULL);
+	psteps = get_property(np, "AAPL,address-step", NULL);
 	steps = psteps ? (*psteps) : 0x10;
 	for (host->bsteps = 0; (steps & 0x01) == 0; host->bsteps++)
 		steps >>= 1;
 	/* Select interface rate */
 	host->speed = KW_I2C_MODE_25KHZ;
-	prate = (u32 *)get_property(np, "AAPL,i2c-rate", NULL);
+	prate = get_property(np, "AAPL,i2c-rate", NULL);
 	if (prate) switch(*prate) {
 	case 100:
 		host->speed = KW_I2C_MODE_100KHZ;
@@ -618,8 +619,8 @@
 		} else {
 			for (child = NULL;
 			     (child = of_get_next_child(np, child)) != NULL;) {
-				u32 *reg =
-					(u32 *)get_property(child, "reg", NULL);
+				const u32 *reg = get_property(child,
+						"reg", NULL);
 				if (reg == NULL)
 					continue;
 				kw_i2c_add(host, np, child, *reg);
@@ -881,7 +882,7 @@
 {
 	struct device_node *controller, *busnode;
 	struct pmac_i2c_bus *bus;
-	u32 *reg;
+	const u32 *reg;
 	int sz;
 
 	if (!smu_present())
@@ -904,7 +905,7 @@
 		if (strcmp(busnode->type, "i2c") &&
 		    strcmp(busnode->type, "i2c-bus"))
 			continue;
-		reg = (u32 *)get_property(busnode, "reg", NULL);
+		reg = get_property(busnode, "reg", NULL);
 		if (reg == NULL)
 			continue;
 
@@ -948,9 +949,8 @@
 		list_for_each_entry(bus, &pmac_i2c_busses, link) {
 			if (p == bus->busnode) {
 				if (prev && bus->flags & pmac_i2c_multibus) {
-					u32 *reg;
-					reg = (u32 *)get_property(prev, "reg",
-								  NULL);
+					const u32 *reg;
+					reg = get_property(prev, "reg", NULL);
 					if (!reg)
 						continue;
 					if (((*reg) >> 8) != bus->channel)
@@ -971,7 +971,7 @@
 
 u8 pmac_i2c_get_dev_addr(struct device_node *device)
 {
-	u32 *reg = (u32 *)get_property(device, "reg", NULL);
+	const u32 *reg = get_property(device, "reg", NULL);
 
 	if (reg == NULL)
 		return 0;
diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c
index 205d044..9923adc 100644
--- a/arch/powerpc/platforms/powermac/pci.c
+++ b/arch/powerpc/platforms/powermac/pci.c
@@ -66,16 +66,16 @@
 static int __init fixup_one_level_bus_range(struct device_node *node, int higher)
 {
 	for (; node != 0;node = node->sibling) {
-		int * bus_range;
-		unsigned int *class_code;
+		const int * bus_range;
+		const unsigned int *class_code;
 		int len;
 
 		/* For PCI<->PCI bridges or CardBus bridges, we go down */
-		class_code = (unsigned int *) get_property(node, "class-code", NULL);
+		class_code = get_property(node, "class-code", NULL);
 		if (!class_code || ((*class_code >> 8) != PCI_CLASS_BRIDGE_PCI &&
 			(*class_code >> 8) != PCI_CLASS_BRIDGE_CARDBUS))
 			continue;
-		bus_range = (int *) get_property(node, "bus-range", &len);
+		bus_range = get_property(node, "bus-range", &len);
 		if (bus_range != NULL && len > 2 * sizeof(int)) {
 			if (bus_range[1] > higher)
 				higher = bus_range[1];
@@ -93,13 +93,15 @@
  */
 static void __init fixup_bus_range(struct device_node *bridge)
 {
-	int * bus_range;
-	int len;
+	int *bus_range, len;
+	struct property *prop;
 
 	/* Lookup the "bus-range" property for the hose */
-	bus_range = (int *) get_property(bridge, "bus-range", &len);
-	if (bus_range == NULL || len < 2 * sizeof(int))
+	prop = of_find_property(bridge, "bus-range", &len);
+	if (prop == NULL || prop->length < 2 * sizeof(int))
 		return;
+
+	bus_range = (int *)prop->value;
 	bus_range[1] = fixup_one_level_bus_range(bridge->child, bus_range[1]);
 }
 
@@ -237,7 +239,7 @@
 static int chaos_validate_dev(struct pci_bus *bus, int devfn, int offset)
 {
 	struct device_node *np;
-	u32 *vendor, *device;
+	const u32 *vendor, *device;
 
 	if (offset >= 0x100)
 		return  PCIBIOS_BAD_REGISTER_NUMBER;
@@ -245,8 +247,8 @@
 	if (np == NULL)
 		return PCIBIOS_DEVICE_NOT_FOUND;
 
-	vendor = (u32 *)get_property(np, "vendor-id", NULL);
-	device = (u32 *)get_property(np, "device-id", NULL);
+	vendor = get_property(np, "vendor-id", NULL);
+	device = get_property(np, "device-id", NULL);
 	if (vendor == NULL || device == NULL)
 		return PCIBIOS_DEVICE_NOT_FOUND;
 
@@ -686,20 +688,21 @@
 
 	for (nec = NULL; (nec = of_find_node_by_name(nec, "usb")) != NULL;) {
 		struct pci_controller *hose;
-		u32 data, *prop;
+		u32 data;
+		const u32 *prop;
 		u8 bus, devfn;
 
-		prop = (u32 *)get_property(nec, "vendor-id", NULL);
+		prop = get_property(nec, "vendor-id", NULL);
 		if (prop == NULL)
 			continue;
 		if (0x1033 != *prop)
 			continue;
-		prop = (u32 *)get_property(nec, "device-id", NULL);
+		prop = get_property(nec, "device-id", NULL);
 		if (prop == NULL)
 			continue;
 		if (0x0035 != *prop)
 			continue;
-		prop = (u32 *)get_property(nec, "reg", NULL);
+		prop = get_property(nec, "reg", NULL);
 		if (prop == NULL)
 			continue;
 		devfn = (prop[0] >> 8) & 0xff;
@@ -898,7 +901,7 @@
 	struct pci_controller *hose;
 	struct resource rsrc;
 	char *disp_name;
-	int *bus_range;
+	const int *bus_range;
 	int primary = 1, has_address = 0;
 
 	DBG("Adding PCI host bridge %s\n", dev->full_name);
@@ -907,7 +910,7 @@
 	has_address = (of_address_to_resource(dev, 0, &rsrc) == 0);
 
 	/* Get bus range if any */
-	bus_range = (int *) get_property(dev, "bus-range", &len);
+	bus_range = get_property(dev, "bus-range", &len);
 	if (bus_range == NULL || len < 2 * sizeof(int)) {
 		printk(KERN_WARNING "Can't get bus-range for %s, assume"
 		       " bus 0\n", dev->full_name);
diff --git a/arch/powerpc/platforms/powermac/pfunc_base.c b/arch/powerpc/platforms/powermac/pfunc_base.c
index 6d66359..829dace 100644
--- a/arch/powerpc/platforms/powermac/pfunc_base.c
+++ b/arch/powerpc/platforms/powermac/pfunc_base.c
@@ -114,7 +114,7 @@
 	 * we just create them all
 	 */
 	for (gp = NULL; (gp = of_get_next_child(gparent, gp)) != NULL;) {
-		u32 *reg = (u32 *)get_property(gp, "reg", NULL);
+		const u32 *reg = get_property(gp, "reg", NULL);
 		unsigned long offset;
 		if (reg == NULL)
 			continue;
diff --git a/arch/powerpc/platforms/powermac/pfunc_core.c b/arch/powerpc/platforms/powermac/pfunc_core.c
index b117adb..7651f278 100644
--- a/arch/powerpc/platforms/powermac/pfunc_core.c
+++ b/arch/powerpc/platforms/powermac/pfunc_core.c
@@ -813,14 +813,15 @@
 	struct pmf_device *dev;
 	struct pmf_function *func, *result = NULL;
 	char fname[64];
-	u32 *prop, ph;
+	const u32 *prop;
+	u32 ph;
 
 	/*
 	 * Look for a "platform-*" function reference. If we can't find
 	 * one, then we fallback to a direct call attempt
 	 */
 	snprintf(fname, 63, "platform-%s", name);
-	prop = (u32 *)get_property(target, fname, NULL);
+	prop = get_property(target, fname, NULL);
 	if (prop == NULL)
 		goto find_it;
 	ph = *prop;
diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
index 31a9da7..824a618 100644
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -116,7 +116,7 @@
 static void pmac_show_cpuinfo(struct seq_file *m)
 {
 	struct device_node *np;
-	char *pp;
+	const char *pp;
 	int plen;
 	int mbmodel;
 	unsigned int mbflags;
@@ -134,12 +134,12 @@
 	seq_printf(m, "machine\t\t: ");
 	np = of_find_node_by_path("/");
 	if (np != NULL) {
-		pp = (char *) get_property(np, "model", NULL);
+		pp = get_property(np, "model", NULL);
 		if (pp != NULL)
 			seq_printf(m, "%s\n", pp);
 		else
 			seq_printf(m, "PowerMac\n");
-		pp = (char *) get_property(np, "compatible", &plen);
+		pp = get_property(np, "compatible", &plen);
 		if (pp != NULL) {
 			seq_printf(m, "motherboard\t:");
 			while (plen > 0) {
@@ -163,10 +163,8 @@
 	if (np == NULL)
 		np = of_find_node_by_type(NULL, "cache");
 	if (np != NULL) {
-		unsigned int *ic = (unsigned int *)
-			get_property(np, "i-cache-size", NULL);
-		unsigned int *dc = (unsigned int *)
-			get_property(np, "d-cache-size", NULL);
+		const unsigned int *ic = get_property(np, "i-cache-size", NULL);
+		const unsigned int *dc = get_property(np, "d-cache-size", NULL);
 		seq_printf(m, "L2 cache\t:");
 		has_l2cache = 1;
 		if (get_property(np, "cache-unified", NULL) != 0 && dc) {
@@ -254,7 +252,7 @@
 		if (np == 0)
 			np = find_type_devices("cpu");
 		if (np != 0) {
-			unsigned int *l2cr = (unsigned int *)
+			const unsigned int *l2cr =
 				get_property(np, "l2cr-value", NULL);
 			if (l2cr != 0) {
 				ppc_override_l2cr = 1;
@@ -277,7 +275,7 @@
 static void __init pmac_setup_arch(void)
 {
 	struct device_node *cpu, *ic;
-	int *fp;
+	const int *fp;
 	unsigned long pvr;
 
 	pvr = PVR_VER(mfspr(SPRN_PVR));
@@ -287,7 +285,7 @@
 	loops_per_jiffy = 50000000 / HZ;
 	cpu = of_find_node_by_type(NULL, "cpu");
 	if (cpu != NULL) {
-		fp = (int *) get_property(cpu, "clock-frequency", NULL);
+		fp = get_property(cpu, "clock-frequency", NULL);
 		if (fp != NULL) {
 			if (pvr >= 0x30 && pvr < 0x80)
 				/* PPC970 etc. */
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index 827b712..653eeb6 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -548,7 +548,7 @@
 	struct device_node *cc = NULL;	
 	struct device_node *p;
 	const char *name = NULL;
-	u32 *reg;
+	const u32 *reg;
 	int ok;
 
 	/* Look for the clock chip */
@@ -562,7 +562,7 @@
 		pmac_tb_clock_chip_host = pmac_i2c_find_bus(cc);
 		if (pmac_tb_clock_chip_host == NULL)
 			continue;
-		reg = (u32 *)get_property(cc, "reg", NULL);
+		reg = get_property(cc, "reg", NULL);
 		if (reg == NULL)
 			continue;
 		switch (*reg) {
@@ -707,8 +707,7 @@
 		core99_tb_gpio = KL_GPIO_TB_ENABLE;	/* default value */
 		cpu = of_find_node_by_type(NULL, "cpu");
 		if (cpu != NULL) {
-			tbprop = (u32 *)get_property(cpu, "timebase-enable",
-						     NULL);
+			tbprop = get_property(cpu, "timebase-enable", NULL);
 			if (tbprop)
 				core99_tb_gpio = *tbprop;
 			of_node_put(cpu);
diff --git a/arch/powerpc/platforms/powermac/udbg_scc.c b/arch/powerpc/platforms/powermac/udbg_scc.c
index 37e5b1e..ce1a235 100644
--- a/arch/powerpc/platforms/powermac/udbg_scc.c
+++ b/arch/powerpc/platforms/powermac/udbg_scc.c
@@ -68,11 +68,11 @@
 
 void udbg_scc_init(int force_scc)
 {
-	u32 *reg;
+	const u32 *reg;
 	unsigned long addr;
 	struct device_node *stdout = NULL, *escc = NULL, *macio = NULL;
 	struct device_node *ch, *ch_def = NULL, *ch_a = NULL;
-	char *path;
+	const char *path;
 	int i, x;
 
 	escc = of_find_node_by_name(NULL, "escc");
@@ -81,7 +81,7 @@
 	macio = of_get_parent(escc);
 	if (macio == NULL)
 		goto bail;
-	path = (char *)get_property(of_chosen, "linux,stdout-path", NULL);
+	path = get_property(of_chosen, "linux,stdout-path", NULL);
 	if (path != NULL)
 		stdout = of_find_node_by_path(path);
 	for (ch = NULL; (ch = of_get_next_child(escc, ch)) != NULL;) {
@@ -96,13 +96,13 @@
 	ch = ch_def ? ch_def : ch_a;
 
 	/* Get address within mac-io ASIC */
-	reg = (u32 *)get_property(escc, "reg", NULL);
+	reg = get_property(escc, "reg", NULL);
 	if (reg == NULL)
 		goto bail;
 	addr = reg[0];
 
 	/* Get address of mac-io PCI itself */
-	reg = (u32 *)get_property(macio, "assigned-addresses", NULL);
+	reg = get_property(macio, "assigned-addresses", NULL);
 	if (reg == NULL)
 		goto bail;
 	addr += reg[2];
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index 32eaddf..5a23ce5 100644
--- a/arch/powerpc/platforms/pseries/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -691,11 +691,11 @@
 {
 	struct eeh_early_enable_info *info = data;
 	int ret;
-	char *status = get_property(dn, "status", NULL);
-	u32 *class_code = (u32 *)get_property(dn, "class-code", NULL);
-	u32 *vendor_id = (u32 *)get_property(dn, "vendor-id", NULL);
-	u32 *device_id = (u32 *)get_property(dn, "device-id", NULL);
-	u32 *regs;
+	const char *status = get_property(dn, "status", NULL);
+	const u32 *class_code = get_property(dn, "class-code", NULL);
+	const u32 *vendor_id = get_property(dn, "vendor-id", NULL);
+	const u32 *device_id = get_property(dn, "device-id", NULL);
+	const u32 *regs;
 	int enable;
 	struct pci_dn *pdn = PCI_DN(dn);
 
@@ -737,7 +737,7 @@
 
 	/* Ok... see if this device supports EEH.  Some do, some don't,
 	 * and the only way to find out is to check each and every one. */
-	regs = (u32 *)get_property(dn, "reg", NULL);
+	regs = get_property(dn, "reg", NULL);
 	if (regs) {
 		/* First register entry is addr (00BBSS00)  */
 		/* Try to enable eeh */
diff --git a/arch/powerpc/platforms/pseries/eeh_driver.c b/arch/powerpc/platforms/pseries/eeh_driver.c
index aaad2c0..3269d2c 100644
--- a/arch/powerpc/platforms/pseries/eeh_driver.c
+++ b/arch/powerpc/platforms/pseries/eeh_driver.c
@@ -268,14 +268,14 @@
 
 	if (!frozen_dn) {
 
-		location = (char *) get_property(event->dn, "ibm,loc-code", NULL);
+		location = get_property(event->dn, "ibm,loc-code", NULL);
 		location = location ? location : "unknown";
 		printk(KERN_ERR "EEH: Error: Cannot find partition endpoint "
 		                "for location=%s pci addr=%s\n",
 		        location, pci_name(event->dev));
 		return NULL;
 	}
-	location = (char *) get_property(frozen_dn, "ibm,loc-code", NULL);
+	location = get_property(frozen_dn, "ibm,loc-code", NULL);
 	location = location ? location : "unknown";
 
 	/* There are two different styles for coming up with the PE.
diff --git a/arch/powerpc/platforms/pseries/eeh_event.c b/arch/powerpc/platforms/pseries/eeh_event.c
index 45ccc68..1370774 100644
--- a/arch/powerpc/platforms/pseries/eeh_event.c
+++ b/arch/powerpc/platforms/pseries/eeh_event.c
@@ -124,11 +124,11 @@
 {
 	unsigned long flags;
 	struct eeh_event *event;
-	char *location;
+	const char *location;
 
 	if (!mem_init_done) {
 		printk(KERN_ERR "EEH: event during early boot not handled\n");
-		location = (char *) get_property(dn, "ibm,loc-code", NULL);
+		location = get_property(dn, "ibm,loc-code", NULL);
 		printk(KERN_ERR "EEH: device node = %s\n", dn->full_name);
 		printk(KERN_ERR "EEH: PCI location = %s\n", location);
 		return 1;
diff --git a/arch/powerpc/platforms/pseries/firmware.c b/arch/powerpc/platforms/pseries/firmware.c
index c01d8f0..1c7b2ba 100644
--- a/arch/powerpc/platforms/pseries/firmware.c
+++ b/arch/powerpc/platforms/pseries/firmware.c
@@ -68,7 +68,7 @@
 void __init fw_feature_init(void)
 {
 	struct device_node *dn;
-	char *hypertas, *s;
+	const char *hypertas, *s;
 	int len, i;
 
 	DBG(" -> fw_feature_init()\n");
diff --git a/arch/powerpc/platforms/pseries/hvCall.S b/arch/powerpc/platforms/pseries/hvCall.S
index c9ff547..9a99b05 100644
--- a/arch/powerpc/platforms/pseries/hvCall.S
+++ b/arch/powerpc/platforms/pseries/hvCall.S
@@ -1,7 +1,6 @@
 /*
  * This file contains the generic code to perform a call to the
  * pSeries LPAR hypervisor.
- * NOTE: this file will go away when we move to inline this work.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -16,42 +15,6 @@
 
 	.text
 
-/* long plpar_hcall(unsigned long opcode,		R3
-			unsigned long arg1,		R4
-			unsigned long arg2,		R5
-			unsigned long arg3,		R6
-			unsigned long arg4,		R7
-			unsigned long *out1,		R8
-			unsigned long *out2,		R9
-			unsigned long *out3);		R10
- */
-_GLOBAL(plpar_hcall)
-	HMT_MEDIUM
-
-	mfcr	r0
-
-	std	r8,STK_PARM(r8)(r1)	/* Save out ptrs */
-	std	r9,STK_PARM(r9)(r1)
-	std	r10,STK_PARM(r10)(r1)
-
-	stw	r0,8(r1)
-
-	HVSC				/* invoke the hypervisor */
-
-	lwz	r0,8(r1)
-
-	ld	r8,STK_PARM(r8)(r1)	/* Fetch r4-r6 ret args */
-	ld	r9,STK_PARM(r9)(r1)
-	ld	r10,STK_PARM(r10)(r1)
-	std	r4,0(r8)
-	std	r5,0(r9)
-	std	r6,0(r10)
-
-	mtcrf	0xff,r0
-	blr				/* return r3 = status */
-
-
-/* Simple interface with no output values (other than status) */
 _GLOBAL(plpar_hcall_norets)
 	HMT_MEDIUM
 
@@ -64,164 +27,64 @@
 	mtcrf	0xff,r0
 	blr				/* return r3 = status */
 
-
-/* long plpar_hcall_8arg_2ret(unsigned long opcode,	R3
-			unsigned long arg1,		R4
-			unsigned long arg2,		R5
-			unsigned long arg3,		R6
-			unsigned long arg4,		R7
-			unsigned long arg5,		R8
-			unsigned long arg6,		R9
-			unsigned long arg7,		R10
-			unsigned long arg8,		112(R1)
-			unsigned long *out1);		120(R1)
- */
-_GLOBAL(plpar_hcall_8arg_2ret)
-	HMT_MEDIUM
-
-	mfcr	r0
-	ld	r11,STK_PARM(r11)(r1)	/* put arg8 in R11 */
-	stw	r0,8(r1)
-
-	HVSC				/* invoke the hypervisor */
-
-	lwz	r0,8(r1)
-	ld	r10,STK_PARM(r12)(r1)	/* Fetch r4 ret arg */
-	std	r4,0(r10)
-	mtcrf	0xff,r0
-	blr				/* return r3 = status */
-
-
-/* long plpar_hcall_4out(unsigned long opcode,		R3
-		 	unsigned long arg1,		R4
-		 	unsigned long arg2,		R5
-		 	unsigned long arg3,		R6
-		 	unsigned long arg4,		R7
-		 	unsigned long *out1,		R8
-		 	unsigned long *out2,		R9
-		 	unsigned long *out3,		R10
-		 	unsigned long *out4);		112(R1)
- */
-_GLOBAL(plpar_hcall_4out)
+_GLOBAL(plpar_hcall)
 	HMT_MEDIUM
 
 	mfcr	r0
 	stw	r0,8(r1)
 
-	std	r8,STK_PARM(r8)(r1)	/* Save out ptrs */
-	std	r9,STK_PARM(r9)(r1)
-	std	r10,STK_PARM(r10)(r1)
+	std     r4,STK_PARM(r4)(r1)     /* Save ret buffer */
+
+	mr	r4,r5
+	mr	r5,r6
+	mr	r6,r7
+	mr	r7,r8
+	mr	r8,r9
+	mr	r9,r10
 
 	HVSC				/* invoke the hypervisor */
 
-	lwz	r0,8(r1)
-
-	ld	r8,STK_PARM(r8)(r1)	/* Fetch r4-r7 ret args */
-	ld	r9,STK_PARM(r9)(r1)
-	ld	r10,STK_PARM(r10)(r1)
-	ld	r11,STK_PARM(r11)(r1)
-	std	r4,0(r8)
-	std	r5,0(r9)
-	std	r6,0(r10)
-	std	r7,0(r11)
-
-	mtcrf	0xff,r0
-	blr				/* return r3 = status */
-
-/* plpar_hcall_7arg_7ret(unsigned long opcode,		R3
-			 unsigned long arg1,		R4
-			 unsigned long arg2,		R5
-			 unsigned long arg3,		R6
-			 unsigned long arg4,		R7
-			 unsigned long arg5,		R8
-			 unsigned long arg6,		R9
-			 unsigned long arg7,		R10
-			 unsigned long *out1,		112(R1)
-			 unsigned long *out2,		110(R1)
-			 unsigned long *out3,		108(R1)
-			 unsigned long *out4,		106(R1)
-			 unsigned long *out5,		104(R1)
-			 unsigned long *out6,		102(R1)
-			 unsigned long *out7);		100(R1)
-*/
-_GLOBAL(plpar_hcall_7arg_7ret)
-	HMT_MEDIUM
-
-	mfcr	r0
-	stw	r0,8(r1)
-
-	HVSC				/* invoke the hypervisor */
+	ld	r12,STK_PARM(r4)(r1)
+	std	r4,  0(r12)
+	std	r5,  8(r12)
+	std	r6, 16(r12)
+	std	r7, 24(r12)
 
 	lwz	r0,8(r1)
-
-	ld	r11,STK_PARM(r11)(r1)	/* Fetch r4 ret arg */
-	std	r4,0(r11)
-	ld	r11,STK_PARM(r12)(r1)	/* Fetch r5 ret arg */
-	std	r5,0(r11)
-	ld	r11,STK_PARM(r13)(r1)	/* Fetch r6 ret arg */
-	std	r6,0(r11)
-	ld	r11,STK_PARM(r14)(r1)	/* Fetch r7 ret arg */
-	std	r7,0(r11)
-	ld	r11,STK_PARM(r15)(r1)	/* Fetch r8 ret arg */
-	std	r8,0(r11)
-	ld	r11,STK_PARM(r16)(r1)	/* Fetch r9 ret arg */
-	std	r9,0(r11)
-	ld	r11,STK_PARM(r17)(r1)	/* Fetch r10 ret arg */
-	std	r10,0(r11)
-
 	mtcrf	0xff,r0
 
 	blr				/* return r3 = status */
 
-/* plpar_hcall_9arg_9ret(unsigned long opcode,		R3
-			 unsigned long arg1,		R4
-			 unsigned long arg2,		R5
-			 unsigned long arg3,		R6
-			 unsigned long arg4,		R7
-			 unsigned long arg5,		R8
-			 unsigned long arg6,		R9
-			 unsigned long arg7,		R10
-			 unsigned long arg8,		112(R1)
-			 unsigned long arg9,		110(R1)
-			 unsigned long *out1,		108(R1)
-			 unsigned long *out2,		106(R1)
-			 unsigned long *out3,		104(R1)
-			 unsigned long *out4,		102(R1)
-			 unsigned long *out5,		100(R1)
-			 unsigned long *out6,		 98(R1)
-			 unsigned long *out7);		 96(R1)
-			 unsigned long *out8,		 94(R1)
-		         unsigned long *out9,            92(R1)
-*/
-_GLOBAL(plpar_hcall_9arg_9ret)
+_GLOBAL(plpar_hcall9)
 	HMT_MEDIUM
 
 	mfcr	r0
 	stw	r0,8(r1)
 
-	ld	r11,STK_PARM(r11)(r1)	 /* put arg8 in R11 */
-	ld	r12,STK_PARM(r12)(r1)    /* put arg9 in R12 */
+	std     r4,STK_PARM(r4)(r1)     /* Save ret buffer */
+
+	mr	r4,r5
+	mr	r5,r6
+	mr	r6,r7
+	mr	r7,r8
+	mr	r8,r9
+	mr	r9,r10
+	ld	r10,STK_PARM(r11)(r1)	 /* put arg7 in R10 */
+	ld	r11,STK_PARM(r12)(r1)	 /* put arg8 in R11 */
+	ld	r12,STK_PARM(r13)(r1)    /* put arg9 in R12 */
 
 	HVSC				/* invoke the hypervisor */
 
-	ld	r0,STK_PARM(r13)(r1)	/* Fetch r4 ret arg */
-	stdx	r4,r0,r0
-	ld	r0,STK_PARM(r14)(r1)	/* Fetch r5 ret arg */
-	stdx	r5,r0,r0
-	ld	r0,STK_PARM(r15)(r1)	/* Fetch r6 ret arg */
-	stdx	r6,r0,r0
-	ld	r0,STK_PARM(r16)(r1)	/* Fetch r7 ret arg */
-	stdx	r7,r0,r0
-	ld	r0,STK_PARM(r17)(r1)	/* Fetch r8 ret arg */
-	stdx	r8,r0,r0
-	ld	r0,STK_PARM(r18)(r1)	/* Fetch r9 ret arg */
-	stdx	r9,r0,r0
-	ld	r0,STK_PARM(r19)(r1)	/* Fetch r10 ret arg */
-	stdx	r10,r0,r0
-	ld	r0,STK_PARM(r20)(r1)	/* Fetch r11 ret arg */
-	stdx	r11,r0,r0
-	ld	r0,STK_PARM(r21)(r1)	/* Fetch r12 ret arg */
-	stdx	r12,r0,r0
+	ld	r12,STK_PARM(r4)(r1)
+	std	r4,  0(r12)
+	std	r5,  8(r12)
+	std	r6, 16(r12)
+	std	r7, 24(r12)
+	std	r8, 32(r12)
+	std	r9, 40(r12)
+	std	r10,48(r12)
+	std	r11,56(r12)
+	std	r12,64(r12)
 
 	lwz	r0,8(r1)
 	mtcrf	0xff,r0
diff --git a/arch/powerpc/platforms/pseries/hvconsole.c b/arch/powerpc/platforms/pseries/hvconsole.c
index a72a987..3f6a89b 100644
--- a/arch/powerpc/platforms/pseries/hvconsole.c
+++ b/arch/powerpc/platforms/pseries/hvconsole.c
@@ -27,6 +27,7 @@
 #include <linux/module.h>
 #include <asm/hvcall.h>
 #include <asm/hvconsole.h>
+#include "plpar_wrappers.h"
 
 /**
  * hvc_get_chars - retrieve characters from firmware for denoted vterm adatper
@@ -40,9 +41,9 @@
 {
 	unsigned long got;
 
-	if (plpar_hcall(H_GET_TERM_CHAR, vtermno, 0, 0, 0, &got,
-		(unsigned long *)buf, (unsigned long *)buf+1) == H_SUCCESS)
+	if (plpar_get_term_char(vtermno, &got, buf) == H_SUCCESS)
 		return got;
+
 	return 0;
 }
 
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index d67af2c..bbf2e34 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -267,13 +267,12 @@
 				 struct iommu_table *tbl)
 {
 	struct device_node *node;
-	unsigned long *basep;
-	unsigned int *sizep;
+	const unsigned long *basep, *sizep;
 
 	node = (struct device_node *)phb->arch_data;
 
-	basep = (unsigned long *)get_property(node, "linux,tce-base", NULL);
-	sizep = (unsigned int *)get_property(node, "linux,tce-size", NULL);
+	basep = get_property(node, "linux,tce-base", NULL);
+	sizep = get_property(node, "linux,tce-size", NULL);
 	if (basep == NULL || sizep == NULL) {
 		printk(KERN_ERR "PCI_DMA: iommu_table_setparms: %s has "
 				"missing tce entries !\n", dn->full_name);
@@ -315,7 +314,7 @@
 static void iommu_table_setparms_lpar(struct pci_controller *phb,
 				      struct device_node *dn,
 				      struct iommu_table *tbl,
-				      unsigned char *dma_window)
+				      const void *dma_window)
 {
 	unsigned long offset, size;
 
@@ -415,7 +414,7 @@
 	struct iommu_table *tbl;
 	struct device_node *dn, *pdn;
 	struct pci_dn *ppci;
-	unsigned char *dma_window = NULL;
+	const void *dma_window = NULL;
 
 	DBG("iommu_bus_setup_pSeriesLP, bus %p, bus->self %p\n", bus, bus->self);
 
@@ -519,7 +518,7 @@
 {
 	struct device_node *pdn, *dn;
 	struct iommu_table *tbl;
-	unsigned char *dma_window = NULL;
+	const void *dma_window = NULL;
 	struct pci_dn *pci;
 
 	DBG("iommu_dev_setup_pSeriesLP, dev %p (%s)\n", dev, pci_name(dev));
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index 3aeb406..1820a0b 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -48,13 +48,11 @@
 #define DBG_LOW(fmt...) do { } while(0)
 #endif
 
-/* in pSeries_hvCall.S */
+/* in hvCall.S */
 EXPORT_SYMBOL(plpar_hcall);
-EXPORT_SYMBOL(plpar_hcall_4out);
+EXPORT_SYMBOL(plpar_hcall9);
 EXPORT_SYMBOL(plpar_hcall_norets);
-EXPORT_SYMBOL(plpar_hcall_8arg_2ret);
-EXPORT_SYMBOL(plpar_hcall_7arg_7ret);
-EXPORT_SYMBOL(plpar_hcall_9arg_9ret);
+
 extern void pSeries_find_serial_port(void);
 
 
@@ -204,20 +202,20 @@
 void __init find_udbg_vterm(void)
 {
 	struct device_node *stdout_node;
-	u32 *termno;
-	char *name;
+	const u32 *termno;
+	const char *name;
 	int add_console;
 
 	/* find the boot console from /chosen/stdout */
 	if (!of_chosen)
 		return;
-	name = (char *)get_property(of_chosen, "linux,stdout-path", NULL);
+	name = get_property(of_chosen, "linux,stdout-path", NULL);
 	if (name == NULL)
 		return;
 	stdout_node = of_find_node_by_path(name);
 	if (!stdout_node)
 		return;
-	name = (char *)get_property(stdout_node, "name", NULL);
+	name = get_property(stdout_node, "name", NULL);
 	if (!name) {
 		printk(KERN_WARNING "stdout node missing 'name' property!\n");
 		goto out;
@@ -228,7 +226,7 @@
 	/* Check if it's a virtual terminal */
 	if (strncmp(name, "vty", 3) != 0)
 		goto out;
-	termno = (u32 *)get_property(stdout_node, "reg", NULL);
+	termno = get_property(stdout_node, "reg", NULL);
 	if (termno == NULL)
 		goto out;
 	vtermno = termno[0];
@@ -254,18 +252,34 @@
 void vpa_init(int cpu)
 {
 	int hwcpu = get_hard_smp_processor_id(cpu);
-	unsigned long vpa = __pa(&lppaca[cpu]);
+	unsigned long addr;
 	long ret;
 
 	if (cpu_has_feature(CPU_FTR_ALTIVEC))
 		lppaca[cpu].vmxregs_in_use = 1;
 
-	ret = register_vpa(hwcpu, vpa);
+	addr = __pa(&lppaca[cpu]);
+	ret = register_vpa(hwcpu, addr);
 
-	if (ret)
+	if (ret) {
 		printk(KERN_ERR "WARNING: vpa_init: VPA registration for "
 				"cpu %d (hw %d) of area %lx returns %ld\n",
-				cpu, hwcpu, vpa, ret);
+				cpu, hwcpu, addr, ret);
+		return;
+	}
+	/*
+	 * PAPR says this feature is SLB-Buffer but firmware never
+	 * reports that.  All SPLPAR support SLB shadow buffer.
+	 */
+	addr = __pa(&slb_shadow[cpu]);
+	if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
+		ret = register_slb_shadow(hwcpu, addr);
+		if (ret)
+			printk(KERN_ERR
+			       "WARNING: vpa_init: SLB shadow buffer "
+			       "registration for cpu %d (hw %d) of area %lx "
+			       "returns %ld\n", cpu, hwcpu, addr, ret);
+	}
 }
 
 long pSeries_lpar_hpte_insert(unsigned long hpte_group,
@@ -277,7 +291,6 @@
 	unsigned long flags;
 	unsigned long slot;
 	unsigned long hpte_v, hpte_r;
-	unsigned long dummy0, dummy1;
 
 	if (!(vflags & HPTE_V_BOLTED))
 		DBG_LOW("hpte_insert(group=%lx, va=%016lx, pa=%016lx, "
@@ -302,8 +315,7 @@
 	if (rflags & (_PAGE_GUARDED|_PAGE_NO_CACHE))
 		hpte_r &= ~_PAGE_COHERENT;
 
-	lpar_rc = plpar_hcall(H_ENTER, flags, hpte_group, hpte_v,
-			      hpte_r, &slot, &dummy0, &dummy1);
+	lpar_rc = plpar_pte_enter(flags, hpte_group, hpte_v, hpte_r, &slot);
 	if (unlikely(lpar_rc == H_PTEG_FULL)) {
 		if (!(vflags & HPTE_V_BOLTED))
 			DBG_LOW(" full\n");
diff --git a/arch/powerpc/platforms/pseries/nvram.c b/arch/powerpc/platforms/pseries/nvram.c
index 18abfb1..64163ce 100644
--- a/arch/powerpc/platforms/pseries/nvram.c
+++ b/arch/powerpc/platforms/pseries/nvram.c
@@ -123,13 +123,14 @@
 int __init pSeries_nvram_init(void)
 {
 	struct device_node *nvram;
-	unsigned int *nbytes_p, proplen;
+	const unsigned int *nbytes_p;
+	unsigned int proplen;
 
 	nvram = of_find_node_by_type(NULL, "nvram");
 	if (nvram == NULL)
 		return -ENODEV;
 
-	nbytes_p = (unsigned int *)get_property(nvram, "#bytes", &proplen);
+	nbytes_p = get_property(nvram, "#bytes", &proplen);
 	if (nbytes_p == NULL || proplen != sizeof(unsigned int))
 		return -EIO;
 
diff --git a/arch/powerpc/platforms/pseries/pci.c b/arch/powerpc/platforms/pseries/pci.c
index e97e67f..410a6bc 100644
--- a/arch/powerpc/platforms/pseries/pci.c
+++ b/arch/powerpc/platforms/pseries/pci.c
@@ -60,7 +60,7 @@
 static void __devinit check_s7a(void)
 {
 	struct device_node *root;
-	char *model;
+	const char *model;
 
 	s7a_workaround = 0;
 	root = of_find_node_by_path("/");
diff --git a/arch/powerpc/platforms/pseries/plpar_wrappers.h b/arch/powerpc/platforms/pseries/plpar_wrappers.h
index 3bd1b3e..3eb7b29 100644
--- a/arch/powerpc/platforms/pseries/plpar_wrappers.h
+++ b/arch/powerpc/platforms/pseries/plpar_wrappers.h
@@ -5,20 +5,17 @@
 
 static inline long poll_pending(void)
 {
-	unsigned long dummy;
-	return plpar_hcall(H_POLL_PENDING, 0, 0, 0, 0, &dummy, &dummy, &dummy);
+	return plpar_hcall_norets(H_POLL_PENDING);
 }
 
 static inline long prod_processor(void)
 {
-	plpar_hcall_norets(H_PROD);
-	return 0;
+	return plpar_hcall_norets(H_PROD);
 }
 
 static inline long cede_processor(void)
 {
-	plpar_hcall_norets(H_CEDE);
-	return 0;
+	return plpar_hcall_norets(H_CEDE);
 }
 
 static inline long vpa_call(unsigned long flags, unsigned long cpu,
@@ -40,23 +37,59 @@
 	return vpa_call(0x1, cpu, vpa);
 }
 
+static inline long unregister_slb_shadow(unsigned long cpu, unsigned long vpa)
+{
+	return vpa_call(0x7, cpu, vpa);
+}
+
+static inline long register_slb_shadow(unsigned long cpu, unsigned long vpa)
+{
+	return vpa_call(0x3, cpu, vpa);
+}
+
 extern void vpa_init(int cpu);
 
+static inline long plpar_pte_enter(unsigned long flags,
+		unsigned long hpte_group, unsigned long hpte_v,
+		unsigned long hpte_r, unsigned long *slot)
+{
+	long rc;
+	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+	rc = plpar_hcall(H_ENTER, retbuf, flags, hpte_group, hpte_v, hpte_r);
+
+	*slot = retbuf[0];
+
+	return rc;
+}
+
 static inline long plpar_pte_remove(unsigned long flags, unsigned long ptex,
 		unsigned long avpn, unsigned long *old_pteh_ret,
 		unsigned long *old_ptel_ret)
 {
-	unsigned long dummy;
-	return plpar_hcall(H_REMOVE, flags, ptex, avpn, 0, old_pteh_ret,
-			old_ptel_ret, &dummy);
+	long rc;
+	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+	rc = plpar_hcall(H_REMOVE, retbuf, flags, ptex, avpn);
+
+	*old_pteh_ret = retbuf[0];
+	*old_ptel_ret = retbuf[1];
+
+	return rc;
 }
 
 static inline long plpar_pte_read(unsigned long flags, unsigned long ptex,
 		unsigned long *old_pteh_ret, unsigned long *old_ptel_ret)
 {
-	unsigned long dummy;
-	return plpar_hcall(H_READ, flags, ptex, 0, 0, old_pteh_ret,
-			old_ptel_ret, &dummy);
+	long rc;
+	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+	rc = plpar_hcall(H_READ, retbuf, flags, ptex);
+
+	*old_pteh_ret = retbuf[0];
+	*old_ptel_ret = retbuf[1];
+
+	return rc;
 }
 
 static inline long plpar_pte_protect(unsigned long flags, unsigned long ptex,
@@ -68,9 +101,14 @@
 static inline long plpar_tce_get(unsigned long liobn, unsigned long ioba,
 		unsigned long *tce_ret)
 {
-	unsigned long dummy;
-	return plpar_hcall(H_GET_TCE, liobn, ioba, 0, 0, tce_ret, &dummy,
-			&dummy);
+	long rc;
+	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+	rc = plpar_hcall(H_GET_TCE, retbuf, liobn, ioba);
+
+	*tce_ret = retbuf[0];
+
+	return rc;
 }
 
 static inline long plpar_tce_put(unsigned long liobn, unsigned long ioba,
@@ -94,9 +132,17 @@
 static inline long plpar_get_term_char(unsigned long termno,
 		unsigned long *len_ret, char *buf_ret)
 {
+	long rc;
+	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
 	unsigned long *lbuf = (unsigned long *)buf_ret;	/* TODO: alignment? */
-	return plpar_hcall(H_GET_TERM_CHAR, termno, 0, 0, 0, len_ret,
-			lbuf + 0, lbuf + 1);
+
+	rc = plpar_hcall(H_GET_TERM_CHAR, retbuf, termno);
+
+	*len_ret = retbuf[0];
+	lbuf[0] = retbuf[1];
+	lbuf[1] = retbuf[2];
+
+	return rc;
 }
 
 static inline long plpar_put_term_char(unsigned long termno, unsigned long len,
@@ -107,4 +153,31 @@
 			lbuf[1]);
 }
 
+static inline long plpar_eoi(unsigned long xirr)
+{
+	return plpar_hcall_norets(H_EOI, xirr);
+}
+
+static inline long plpar_cppr(unsigned long cppr)
+{
+	return plpar_hcall_norets(H_CPPR, cppr);
+}
+
+static inline long plpar_ipi(unsigned long servernum, unsigned long mfrr)
+{
+	return plpar_hcall_norets(H_IPI, servernum, mfrr);
+}
+
+static inline long plpar_xirr(unsigned long *xirr_ret)
+{
+	long rc;
+	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+	rc = plpar_hcall(H_XIRR, retbuf);
+
+	*xirr_ret = retbuf[0];
+
+	return rc;
+}
+
 #endif /* _PSERIES_PLPAR_WRAPPERS_H */
diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c
index c7ffde1..903115d 100644
--- a/arch/powerpc/platforms/pseries/ras.c
+++ b/arch/powerpc/platforms/pseries/ras.c
@@ -79,7 +79,7 @@
 {
 	int i, index, count = 0;
 	struct of_irq oirq;
-	u32 *opicprop;
+	const u32 *opicprop;
 	unsigned int opicplen;
 	unsigned int virqs[16];
 
@@ -87,7 +87,7 @@
 	 * map those interrupts using the default interrupt host and default
 	 * trigger
 	 */
-	opicprop = (u32 *)get_property(np, "open-pic-interrupt", &opicplen);
+	opicprop = get_property(np, "open-pic-interrupt", &opicplen);
 	if (opicprop) {
 		opicplen /= sizeof(u32);
 		for (i = 0; i < opicplen; i++) {
diff --git a/arch/powerpc/platforms/pseries/rtasd.c b/arch/powerpc/platforms/pseries/rtasd.c
index 2e4e040..8ca2612 100644
--- a/arch/powerpc/platforms/pseries/rtasd.c
+++ b/arch/powerpc/platforms/pseries/rtasd.c
@@ -359,11 +359,11 @@
 static int get_eventscan_parms(void)
 {
 	struct device_node *node;
-	int *ip;
+	const int *ip;
 
 	node = of_find_node_by_path("/rtas");
 
-	ip = (int *)get_property(node, "rtas-event-scan-rate", NULL);
+	ip = get_property(node, "rtas-event-scan-rate", NULL);
 	if (ip == NULL) {
 		printk(KERN_ERR "rtasd: no rtas-event-scan-rate\n");
 		of_node_put(node);
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 31867a7..1587efc 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -133,9 +133,9 @@
 static void __init pseries_mpic_init_IRQ(void)
 {
 	struct device_node *np, *old, *cascade = NULL;
-        unsigned int *addrp;
+        const unsigned int *addrp;
 	unsigned long intack = 0;
-	unsigned int *opprop;
+	const unsigned int *opprop;
 	unsigned long openpic_addr = 0;
 	unsigned int cascade_irq;
 	int naddr, n, i, opplen;
@@ -143,7 +143,7 @@
 
 	np = of_find_node_by_path("/");
 	naddr = prom_n_addr_cells(np);
-	opprop = (unsigned int *) get_property(np, "platform-open-pic", &opplen);
+	opprop = get_property(np, "platform-open-pic", &opplen);
 	if (opprop != 0) {
 		openpic_addr = of_read_number(opprop, naddr);
 		printk(KERN_DEBUG "OpenPIC addr: %lx\n", openpic_addr);
@@ -192,7 +192,7 @@
 			break;
 		if (strcmp(np->name, "pci") != 0)
 			continue;
-		addrp = (u32 *)get_property(np, "8259-interrupt-acknowledge",
+		addrp = get_property(np, "8259-interrupt-acknowledge",
 					    NULL);
 		if (addrp == NULL)
 			continue;
@@ -232,9 +232,17 @@
 {
 	/* Don't risk a hypervisor call if we're crashing */
 	if (firmware_has_feature(FW_FEATURE_SPLPAR) && !crash_shutdown) {
-		unsigned long vpa = __pa(get_lppaca());
+		unsigned long addr;
 
-		if (unregister_vpa(hard_smp_processor_id(), vpa)) {
+		addr = __pa(get_slb_shadow());
+		if (unregister_slb_shadow(hard_smp_processor_id(), addr))
+			printk("SLB shadow buffer deregistration of "
+			       "cpu %u (hw_cpu_id %d) failed\n",
+			       smp_processor_id(),
+			       hard_smp_processor_id());
+
+		addr = __pa(get_lppaca());
+		if (unregister_vpa(hard_smp_processor_id(), addr)) {
 			printk("VPA deregistration of cpu %u (hw_cpu_id %d) "
 					"failed\n", smp_processor_id(),
 					hard_smp_processor_id());
@@ -247,11 +255,11 @@
 static void __init pseries_discover_pic(void)
 {
 	struct device_node *np;
-	char *typep;
+	const char *typep;
 
 	for (np = NULL; (np = of_find_node_by_name(np,
 						   "interrupt-controller"));) {
-		typep = (char *)get_property(np, "compatible", NULL);
+		typep = get_property(np, "compatible", NULL);
 		if (strstr(typep, "open-pic")) {
 			pSeries_mpic_node = of_node_get(np);
 			ppc_md.init_IRQ       = pseries_mpic_init_IRQ;
diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c
index ac61098..c6624b8 100644
--- a/arch/powerpc/platforms/pseries/smp.c
+++ b/arch/powerpc/platforms/pseries/smp.c
@@ -62,7 +62,7 @@
  */
 static cpumask_t of_spin_map;
 
-extern void pSeries_secondary_smp_init(unsigned long);
+extern void generic_secondary_smp_init(unsigned long);
 
 #ifdef CONFIG_HOTPLUG_CPU
 
@@ -145,9 +145,9 @@
 	unsigned int cpu;
 	cpumask_t candidate_map, tmp = CPU_MASK_NONE;
 	int err = -ENOSPC, len, nthreads, i;
-	u32 *intserv;
+	const u32 *intserv;
 
-	intserv = (u32 *)get_property(np, "ibm,ppc-interrupt-server#s", &len);
+	intserv = get_property(np, "ibm,ppc-interrupt-server#s", &len);
 	if (!intserv)
 		return 0;
 
@@ -205,9 +205,9 @@
 {
 	unsigned int cpu;
 	int len, nthreads, i;
-	u32 *intserv;
+	const u32 *intserv;
 
-	intserv = (u32 *)get_property(np, "ibm,ppc-interrupt-server#s", &len);
+	intserv = get_property(np, "ibm,ppc-interrupt-server#s", &len);
 	if (!intserv)
 		return;
 
@@ -270,7 +270,7 @@
 {
 	int status;
 	unsigned long start_here = __pa((u32)*((unsigned long *)
-					       pSeries_secondary_smp_init));
+					       generic_secondary_smp_init));
 	unsigned int pcpu;
 	int start_cpu;
 
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index e988630..253972e 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -34,6 +34,7 @@
 #include <asm/i8259.h>
 
 #include "xics.h"
+#include "plpar_wrappers.h"
 
 #define XICS_IPI		2
 #define XICS_IRQ_SPURIOUS	0
@@ -110,27 +111,6 @@
 /* LPAR low level accessors */
 
 
-static inline long plpar_eoi(unsigned long xirr)
-{
-	return plpar_hcall_norets(H_EOI, xirr);
-}
-
-static inline long plpar_cppr(unsigned long cppr)
-{
-	return plpar_hcall_norets(H_CPPR, cppr);
-}
-
-static inline long plpar_ipi(unsigned long servernum, unsigned long mfrr)
-{
-	return plpar_hcall_norets(H_IPI, servernum, mfrr);
-}
-
-static inline long plpar_xirr(unsigned long *xirr_ret)
-{
-	unsigned long dummy;
-	return plpar_hcall(H_XIRR, 0, 0, 0, 0, xirr_ret, &dummy, &dummy);
-}
-
 static inline unsigned int lpar_xirr_info_get(int n_cpu)
 {
 	unsigned long lpar_rc;
@@ -590,14 +570,14 @@
 				      unsigned int *indx)
 {
 	unsigned int ilen;
-	u32 *ireg;
+	const u32 *ireg;
 
 	/* This code does the theorically broken assumption that the interrupt
 	 * server numbers are the same as the hard CPU numbers.
 	 * This happens to be the case so far but we are playing with fire...
 	 * should be fixed one of these days. -BenH.
 	 */
-	ireg = (u32 *)get_property(np, "ibm,interrupt-server-ranges", NULL);
+	ireg = get_property(np, "ibm,interrupt-server-ranges", NULL);
 
 	/* Do that ever happen ? we'll know soon enough... but even good'old
 	 * f80 does have that property ..
@@ -609,7 +589,7 @@
 		 */
 		*indx = *ireg;
 	}
-	ireg = (u32 *)get_property(np, "reg", &ilen);
+	ireg = get_property(np, "reg", &ilen);
 	if (!ireg)
 		panic("xics_init_IRQ: can't find interrupt reg property");
 
@@ -635,7 +615,7 @@
 {
 	struct device_node *np, *old, *found = NULL;
 	int cascade, naddr;
-	u32 *addrp;
+	const u32 *addrp;
 	unsigned long intack = 0;
 
 	for_each_node_by_type(np, "interrupt-controller")
@@ -661,7 +641,7 @@
 			break;
 		if (strcmp(np->name, "pci") != 0)
 			continue;
-		addrp = (u32 *)get_property(np, "8259-interrupt-acknowledge", NULL);
+		addrp = get_property(np, "8259-interrupt-acknowledge", NULL);
 		if (addrp == NULL)
 			continue;
 		naddr = prom_n_addr_cells(np);
@@ -680,7 +660,8 @@
 {
 	int i;
 	struct device_node *np;
-	u32 *ireg, ilen, indx = 0;
+	u32 ilen, indx = 0;
+	const u32 *ireg;
 	int found = 0;
 
 	ppc64_boot_msg(0x20, "XICS Init");
@@ -705,18 +686,17 @@
 	for (np = of_find_node_by_type(NULL, "cpu");
 	     np;
 	     np = of_find_node_by_type(np, "cpu")) {
-		ireg = (u32 *)get_property(np, "reg", &ilen);
+		ireg = get_property(np, "reg", &ilen);
 		if (ireg && ireg[0] == get_hard_smp_processor_id(boot_cpuid)) {
-			ireg = (u32 *)get_property(np,
-						  "ibm,ppc-interrupt-gserver#s",
-						   &ilen);
+			ireg = get_property(np,
+					"ibm,ppc-interrupt-gserver#s", &ilen);
 			i = ilen / sizeof(int);
 			if (ireg && i > 0) {
 				default_server = ireg[0];
 				/* take last element */
 				default_distrib_server = ireg[i-1];
 			}
-			ireg = (u32 *)get_property(np,
+			ireg = get_property(np,
 					"ibm,interrupt-server#-size", NULL);
 			if (ireg)
 				interrupt_server_size = *ireg;
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index ef10bcf..92ba378 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -41,7 +41,7 @@
 	soc = of_find_node_by_type(NULL, "soc");
 	if (soc) {
 		unsigned int size;
-		void *prop = get_property(soc, "reg", &size);
+		const void *prop = get_property(soc, "reg", &size);
 		immrbase = of_translate_address(soc, prop);
 		of_node_put(soc);
 	};
@@ -85,7 +85,7 @@
 			mdio_data.irq[k] = -1;
 
 		while ((child = of_get_next_child(np, child)) != NULL) {
-			u32 *id = get_property(child, "reg", NULL);
+			const u32 *id = get_property(child, "reg", NULL);
 			mdio_data.irq[*id] = irq_of_parse_and_map(child, 0);
 		}
 
@@ -124,10 +124,10 @@
 		struct resource r[4];
 		struct device_node *phy, *mdio;
 		struct gianfar_platform_data gfar_data;
-		unsigned int *id;
-		char *model;
-		void *mac_addr;
-		phandle *ph;
+		const unsigned int *id;
+		const char *model;
+		const void *mac_addr;
+		const phandle *ph;
 		int n_res = 1;
 
 		memset(r, 0, sizeof(r));
@@ -193,7 +193,7 @@
 			    FSL_GIANFAR_DEV_HAS_VLAN |
 			    FSL_GIANFAR_DEV_HAS_EXTENDED_HASH;
 
-		ph = (phandle *) get_property(np, "phy-handle", NULL);
+		ph = get_property(np, "phy-handle", NULL);
 		phy = of_find_node_by_phandle(*ph);
 
 		if (phy == NULL) {
@@ -203,7 +203,7 @@
 
 		mdio = of_get_parent(phy);
 
-		id = (u32 *) get_property(phy, "reg", NULL);
+		id = get_property(phy, "reg", NULL);
 		ret = of_address_to_resource(mdio, 0, &res);
 		if (ret) {
 			of_node_put(phy);
@@ -247,7 +247,7 @@
 	     i++) {
 		struct resource r[2];
 		struct fsl_i2c_platform_data i2c_data;
-		unsigned char *flags = NULL;
+		const unsigned char *flags = NULL;
 
 		memset(&r, 0, sizeof(r));
 		memset(&i2c_data, 0, sizeof(i2c_data));
@@ -298,7 +298,7 @@
 	struct resource r;
 	struct device_node *soc, *np;
 	struct platform_device *dev;
-	unsigned int *freq;
+	const unsigned int *freq;
 	int ret;
 
 	np = of_find_compatible_node(NULL, "watchdog", "mpc83xx_wdt");
@@ -315,7 +315,7 @@
 		goto nosoc;
 	}
 
-	freq = (unsigned int *)get_property(soc, "bus-frequency", NULL);
+	freq = get_property(soc, "bus-frequency", NULL);
 	if (!freq) {
 		ret = -ENODEV;
 		goto err;
@@ -355,7 +355,7 @@
 arch_initcall(mpc83xx_wdt_init);
 #endif
 
-static enum fsl_usb2_phy_modes determine_usb_phy(char * phy_type)
+static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type)
 {
 	if (!phy_type)
 		return FSL_USB2_PHY_NONE;
@@ -383,7 +383,7 @@
 	     i++) {
 		struct resource r[2];
 		struct fsl_usb2_platform_data usb_data;
-		unsigned char *prop = NULL;
+		const unsigned char *prop = NULL;
 
 		memset(&r, 0, sizeof(r));
 		memset(&usb_data, 0, sizeof(usb_data));
@@ -431,7 +431,7 @@
 	     i++) {
 		struct resource r[2];
 		struct fsl_usb2_platform_data usb_data;
-		unsigned char *prop = NULL;
+		const unsigned char *prop = NULL;
 
 		memset(&r, 0, sizeof(r));
 		memset(&usb_data, 0, sizeof(usb_data));
diff --git a/arch/powerpc/sysdev/i8259.c b/arch/powerpc/sysdev/i8259.c
index 9855820..26a6a3b 100644
--- a/arch/powerpc/sysdev/i8259.c
+++ b/arch/powerpc/sysdev/i8259.c
@@ -224,7 +224,7 @@
 	.xlate = i8259_host_xlate,
 };
 
-/****
+/**
  * i8259_init - Initialize the legacy controller
  * @node: device node of the legacy PIC (can be NULL, but then, it will match
  *        all interrupts, so beware)
diff --git a/arch/powerpc/sysdev/mmio_nvram.c b/arch/powerpc/sysdev/mmio_nvram.c
index 615350d..ff23f5a 100644
--- a/arch/powerpc/sysdev/mmio_nvram.c
+++ b/arch/powerpc/sysdev/mmio_nvram.c
@@ -80,7 +80,7 @@
 int __init mmio_nvram_init(void)
 {
 	struct device_node *nvram_node;
-	unsigned long *buffer;
+	const unsigned long *buffer;
 	int proplen;
 	unsigned long nvram_addr;
 	int ret;
@@ -91,7 +91,7 @@
 		goto out;
 
 	ret = -EIO;
-	buffer = (unsigned long *)get_property(nvram_node, "reg", &proplen);
+	buffer = get_property(nvram_node, "reg", &proplen);
 	if (proplen != 2*sizeof(unsigned long))
 		goto out;
 
diff --git a/arch/powerpc/sysdev/tsi108_pci.c b/arch/powerpc/sysdev/tsi108_pci.c
index 2ab06ed..c28f69b 100644
--- a/arch/powerpc/sysdev/tsi108_pci.c
+++ b/arch/powerpc/sysdev/tsi108_pci.c
@@ -194,7 +194,7 @@
 	int len;
 	struct pci_controller *hose;
 	struct resource rsrc;
-	int *bus_range;
+	const int *bus_range;
 	int primary = 0, has_address = 0;
 
 	/* PCI Config mapping */
@@ -207,7 +207,7 @@
 	has_address = (of_address_to_resource(dev, 0, &rsrc) == 0);
 
 	/* Get bus range if any */
-	bus_range = (int *)get_property(dev, "bus-range", &len);
+	bus_range = get_property(dev, "bus-range", &len);
 	if (bus_range == NULL || len < 2 * sizeof(int)) {
 		printk(KERN_WARNING "Can't get bus-range for %s, assume"
 		       " bus 0\n", dev->full_name);
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index c40e487..320ad7b 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -495,6 +495,21 @@
 	  When not in use, each legacy PTY occupies 12 bytes on 32-bit
 	  architectures and 24 bytes on 64-bit architectures.
 
+config BRIQ_PANEL
+	tristate 'Total Impact briQ front panel driver'
+	depends on PPC
+	---help---
+	  The briQ is a small footprint CHRP computer with a frontpanel VFD, a
+	  tristate led and two switches. It is the size of a CDROM drive.
+
+	  If you have such one and want anything showing on the VFD then you
+	  must answer Y here.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called briq_panel.
+
+	  It's safe to say N here.
+
 config PRINTER
 	tristate "Parallel printer support"
 	depends on PARPORT
@@ -596,6 +611,13 @@
 	  console. This driver allows each pSeries partition to have a console
 	  which is accessed via the HMC.
 
+config HVC_ISERIES
+	bool "iSeries Hypervisor Virtual Console support"
+	depends on PPC_ISERIES && !VIOCONS
+	select HVC_DRIVER
+	help
+	  iSeries machines support a hypervisor virtual console.
+
 config HVC_RTAS
 	bool "IBM RTAS Console support"
 	depends on PPC_RTAS
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index 6e0f446..8c6dfc62 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -42,6 +42,7 @@
 obj-$(CONFIG_SX)		+= sx.o generic_serial.o
 obj-$(CONFIG_RIO)		+= rio/ generic_serial.o
 obj-$(CONFIG_HVC_CONSOLE)	+= hvc_vio.o hvsi.o
+obj-$(CONFIG_HVC_ISERIES)	+= hvc_iseries.o
 obj-$(CONFIG_HVC_RTAS)		+= hvc_rtas.o
 obj-$(CONFIG_HVC_DRIVER)	+= hvc_console.o
 obj-$(CONFIG_RAW_DRIVER)	+= raw.o
@@ -51,6 +52,7 @@
 obj-$(CONFIG_VIOTAPE)		+= viotape.o
 obj-$(CONFIG_HVCS)		+= hvcs.o
 obj-$(CONFIG_SGI_MBCS)		+= mbcs.o
+obj-$(CONFIG_BRIQ_PANEL)	+= briq_panel.o
 
 obj-$(CONFIG_PRINTER)		+= lp.o
 obj-$(CONFIG_TIPAR)		+= tipar.o
diff --git a/drivers/char/agp/uninorth-agp.c b/drivers/char/agp/uninorth-agp.c
index 1de1b12..91b71e7 100644
--- a/drivers/char/agp/uninorth-agp.c
+++ b/drivers/char/agp/uninorth-agp.c
@@ -601,8 +601,8 @@
 		uninorth_node = of_find_node_by_name(NULL, "u3");
 	}
 	if (uninorth_node) {
-		int *revprop = (int *)
-			get_property(uninorth_node, "device-rev", NULL);
+		const int *revprop = get_property(uninorth_node,
+				"device-rev", NULL);
 		if (revprop != NULL)
 			uninorth_rev = *revprop & 0x3f;
 		of_node_put(uninorth_node);
diff --git a/drivers/char/briq_panel.c b/drivers/char/briq_panel.c
new file mode 100644
index 0000000..a0e5eac
--- /dev/null
+++ b/drivers/char/briq_panel.c
@@ -0,0 +1,268 @@
+/*
+ * Drivers for the Total Impact PPC based computer "BRIQ"
+ * by Dr. Karsten Jeppesen
+ *
+ */
+
+#include <linux/module.h>
+
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/tty.h>
+#include <linux/timer.h>
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/wait.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/miscdevice.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/init.h>
+
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <asm/prom.h>
+
+#define		BRIQ_PANEL_MINOR	156
+#define		BRIQ_PANEL_VFD_IOPORT	0x0390
+#define		BRIQ_PANEL_LED_IOPORT	0x0398
+#define		BRIQ_PANEL_VER		"1.1 (04/20/2002)"
+#define		BRIQ_PANEL_MSG0		"Loading Linux"
+
+static int		vfd_is_open;
+static unsigned char	vfd[40];
+static int		vfd_cursor;
+static unsigned char	ledpb, led;
+
+static void update_vfd(void)
+{
+	int	i;
+
+	/* cursor home */
+	outb(0x02, BRIQ_PANEL_VFD_IOPORT);
+	for (i=0; i<20; i++)
+		outb(vfd[i], BRIQ_PANEL_VFD_IOPORT + 1);
+
+	/* cursor to next line */
+	outb(0xc0, BRIQ_PANEL_VFD_IOPORT);
+	for (i=20; i<40; i++)
+		outb(vfd[i], BRIQ_PANEL_VFD_IOPORT + 1);
+
+}
+
+static void set_led(char state)
+{
+	if (state == 'R')
+		led = 0x01;
+	else if (state == 'G')
+		led = 0x02;
+	else if (state == 'Y')
+		led = 0x03;
+	else if (state == 'X')
+		led = 0x00;
+	outb(led, BRIQ_PANEL_LED_IOPORT);
+}
+
+static int briq_panel_open(struct inode *ino, struct file *filep)
+{
+	/* enforce single access */
+	if (vfd_is_open)
+		return -EBUSY;
+	vfd_is_open = 1;
+
+	return 0;
+}
+
+static int briq_panel_release(struct inode *ino, struct file *filep)
+{
+	if (!vfd_is_open)
+		return -ENODEV;
+
+	vfd_is_open = 0;
+
+	return 0;
+}
+
+static ssize_t briq_panel_read(struct file *file, char *buf, size_t count,
+			 loff_t *ppos)
+{
+	unsigned short c;
+	unsigned char cp;
+
+#if 0	/*  Can't seek (pread) on this device  */
+	if (ppos != &file->f_pos)
+		return -ESPIPE;
+#endif
+
+	if (!vfd_is_open)
+		return -ENODEV;
+
+	c = (inb(BRIQ_PANEL_LED_IOPORT) & 0x000c) | (ledpb & 0x0003);
+	set_led(' ');
+	/* upper button released */
+	if ((!(ledpb & 0x0004)) && (c & 0x0004)) {
+		cp = ' ';
+		ledpb = c;
+		if (copy_to_user(buf, &cp, 1))
+			return -EFAULT;
+		return 1;
+	}
+	/* lower button released */
+	else if ((!(ledpb & 0x0008)) && (c & 0x0008)) {
+		cp = '\r';
+		ledpb = c;
+		if (copy_to_user(buf, &cp, 1))
+			return -EFAULT;
+		return 1;
+	} else {
+		ledpb = c;
+		return 0;
+	}
+}
+
+static void scroll_vfd( void )
+{
+	int	i;
+
+	for (i=0; i<20; i++) {
+		vfd[i] = vfd[i+20];
+		vfd[i+20] = ' ';
+	}
+	vfd_cursor = 20;
+}
+
+static ssize_t briq_panel_write(struct file *file, const char *buf, size_t len,
+			  loff_t *ppos)
+{
+	size_t indx = len;
+	int i, esc = 0;
+
+#if 0	/*  Can't seek (pwrite) on this device  */
+	if (ppos != &file->f_pos)
+		return -ESPIPE;
+#endif
+
+	if (!vfd_is_open)
+		return -EBUSY;
+
+	for (;;) {
+		if (!indx)
+			break;
+		if (esc) {
+			set_led(*buf);
+			esc = 0;
+		} else if (*buf == 27) {
+			esc = 1;
+		} else if (*buf == 12) {
+			/* do a form feed */
+			for (i=0; i<40; i++)
+				vfd[i] = ' ';
+			vfd_cursor = 0;
+		} else if (*buf == 10) {
+			if (vfd_cursor < 20)
+				vfd_cursor = 20;
+			else if (vfd_cursor < 40)
+				vfd_cursor = 40;
+			else if (vfd_cursor < 60)
+				vfd_cursor = 60;
+			if (vfd_cursor > 59)
+				scroll_vfd();
+		} else {
+			/* just a character */
+			if (vfd_cursor > 39)
+				scroll_vfd();
+			vfd[vfd_cursor++] = *buf;
+		}
+		indx--;
+		buf++;
+	}
+	update_vfd();
+
+	return len;
+}
+
+static struct file_operations briq_panel_fops = {
+	.owner		= THIS_MODULE,
+	.read		= briq_panel_read,
+	.write		= briq_panel_write,
+	.open		= briq_panel_open,
+	.release	= briq_panel_release,
+};
+
+static struct miscdevice briq_panel_miscdev = {
+	BRIQ_PANEL_MINOR,
+	"briq_panel",
+	&briq_panel_fops
+};
+
+static int __init briq_panel_init(void)
+{
+	struct device_node *root = find_path_device("/");
+	char *machine;
+	int i;
+
+	machine = get_property(root, "model", NULL);
+	if (!machine || strncmp(machine, "TotalImpact,BRIQ-1", 18) != 0)
+		return -ENODEV;
+
+	printk(KERN_INFO
+		"briq_panel: v%s Dr. Karsten Jeppesen (kj@totalimpact.com)\n",
+		BRIQ_PANEL_VER);
+
+	if (!request_region(BRIQ_PANEL_VFD_IOPORT, 4, "BRIQ Front Panel"))
+		return -EBUSY;
+
+	if (!request_region(BRIQ_PANEL_LED_IOPORT, 2, "BRIQ Front Panel")) {
+		release_region(BRIQ_PANEL_VFD_IOPORT, 4);
+		return -EBUSY;
+	}
+	ledpb = inb(BRIQ_PANEL_LED_IOPORT) & 0x000c;
+
+	if (misc_register(&briq_panel_miscdev) < 0) {
+		release_region(BRIQ_PANEL_VFD_IOPORT, 4);
+		release_region(BRIQ_PANEL_LED_IOPORT, 2);
+		return -EBUSY;
+	}
+
+	outb(0x38, BRIQ_PANEL_VFD_IOPORT);	/* Function set */
+	outb(0x01, BRIQ_PANEL_VFD_IOPORT);	/* Clear display */
+	outb(0x0c, BRIQ_PANEL_VFD_IOPORT);	/* Display on */
+	outb(0x06, BRIQ_PANEL_VFD_IOPORT);	/* Entry normal */
+	for (i=0; i<40; i++)
+		vfd[i]=' ';
+#ifndef MODULE
+	vfd[0] = 'L';
+	vfd[1] = 'o';
+	vfd[2] = 'a';
+	vfd[3] = 'd';
+	vfd[4] = 'i';
+	vfd[5] = 'n';
+	vfd[6] = 'g';
+	vfd[7] = ' ';
+	vfd[8] = '.';
+	vfd[9] = '.';
+	vfd[10] = '.';
+#endif /* !MODULE */
+
+	update_vfd();
+
+	return 0;
+}
+
+static void __exit briq_panel_exit(void)
+{
+	misc_deregister(&briq_panel_miscdev);
+	release_region(BRIQ_PANEL_VFD_IOPORT, 4);
+	release_region(BRIQ_PANEL_LED_IOPORT, 2);
+}
+
+module_init(briq_panel_init);
+module_exit(briq_panel_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Karsten Jeppesen <karsten@jeppesens.com>");
+MODULE_DESCRIPTION("Driver for the Total Impact briQ front panel");
diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c
index ca2f538..dbee8be 100644
--- a/drivers/char/hvc_console.c
+++ b/drivers/char/hvc_console.c
@@ -80,7 +80,8 @@
 	struct tty_struct *tty;
 	unsigned int count;
 	int do_wakeup;
-	char outbuf[N_OUTBUF] __ALIGNED__;
+	char *outbuf;
+	int outbuf_size;
 	int n_outbuf;
 	uint32_t vtermno;
 	struct hv_ops *ops;
@@ -505,7 +506,7 @@
 	if (hp->n_outbuf > 0)
 		hvc_push(hp);
 
-	while (count > 0 && (rsize = N_OUTBUF - hp->n_outbuf) > 0) {
+	while (count > 0 && (rsize = hp->outbuf_size - hp->n_outbuf) > 0) {
 		if (rsize > count)
 			rsize = count;
 		memcpy(hp->outbuf + hp->n_outbuf, buf, rsize);
@@ -538,7 +539,7 @@
 	if (!hp)
 		return -1;
 
-	return N_OUTBUF - hp->n_outbuf;
+	return hp->outbuf_size - hp->n_outbuf;
 }
 
 static int hvc_chars_in_buffer(struct tty_struct *tty)
@@ -728,12 +729,13 @@
 };
 
 struct hvc_struct __devinit *hvc_alloc(uint32_t vtermno, int irq,
-					struct hv_ops *ops)
+					struct hv_ops *ops, int outbuf_size)
 {
 	struct hvc_struct *hp;
 	int i;
 
-	hp = kmalloc(sizeof(*hp), GFP_KERNEL);
+	hp = kmalloc(ALIGN(sizeof(*hp), sizeof(long)) + outbuf_size,
+			GFP_KERNEL);
 	if (!hp)
 		return ERR_PTR(-ENOMEM);
 
@@ -742,6 +744,8 @@
 	hp->vtermno = vtermno;
 	hp->irq = irq;
 	hp->ops = ops;
+	hp->outbuf_size = outbuf_size;
+	hp->outbuf = &((char *)hp)[ALIGN(sizeof(*hp), sizeof(long))];
 
 	kobject_init(&hp->kobj);
 	hp->kobj.ktype = &hvc_kobj_type;
diff --git a/drivers/char/hvc_console.h b/drivers/char/hvc_console.h
index 96b7401..8c59818 100644
--- a/drivers/char/hvc_console.h
+++ b/drivers/char/hvc_console.h
@@ -56,7 +56,7 @@
 
 /* register a vterm for hvc tty operation (module_init or hotplug add) */
 extern struct hvc_struct * __devinit hvc_alloc(uint32_t vtermno, int irq,
-						 struct hv_ops *ops);
+				struct hv_ops *ops, int outbuf_size);
 /* remove a vterm from hvc tty operation (modele_exit or hotplug remove) */
 extern int __devexit hvc_remove(struct hvc_struct *hp);
 
diff --git a/drivers/char/hvc_iseries.c b/drivers/char/hvc_iseries.c
new file mode 100644
index 0000000..4747729
--- /dev/null
+++ b/drivers/char/hvc_iseries.c
@@ -0,0 +1,594 @@
+/*
+ * iSeries vio driver interface to hvc_console.c
+ *
+ * This code is based heavily on hvc_vio.c and viocons.c
+ *
+ * Copyright (C) 2006 Stephen Rothwell, IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+#include <stdarg.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/console.h>
+
+#include <asm/hvconsole.h>
+#include <asm/vio.h>
+#include <asm/prom.h>
+#include <asm/iseries/vio.h>
+#include <asm/iseries/hv_call.h>
+#include <asm/iseries/hv_lp_config.h>
+#include <asm/iseries/hv_lp_event.h>
+
+#include "hvc_console.h"
+
+#define VTTY_PORTS 10
+
+static DEFINE_SPINLOCK(consolelock);
+static DEFINE_SPINLOCK(consoleloglock);
+
+static const char hvc_driver_name[] = "hvc_console";
+
+#define IN_BUF_SIZE	200
+
+/*
+ * Our port information.
+ */
+static struct port_info {
+	HvLpIndex lp;
+	u64 seq;	/* sequence number of last HV send */
+	u64 ack;	/* last ack from HV */
+	struct hvc_struct *hp;
+	int in_start;
+	int in_end;
+	unsigned char in_buf[IN_BUF_SIZE];
+} port_info[VTTY_PORTS] = {
+	[ 0 ... VTTY_PORTS - 1 ] = {
+		.lp = HvLpIndexInvalid
+	}
+};
+
+#define viochar_is_console(pi)	((pi) == &port_info[0])
+
+static struct vio_device_id hvc_driver_table[] __devinitdata = {
+	{"serial", "IBM,iSeries-vty"},
+	{ "", "" }
+};
+MODULE_DEVICE_TABLE(vio, hvc_driver_table);
+
+static void hvlog(char *fmt, ...)
+{
+	int i;
+	unsigned long flags;
+	va_list args;
+	static char buf[256];
+
+	spin_lock_irqsave(&consoleloglock, flags);
+	va_start(args, fmt);
+	i = vscnprintf(buf, sizeof(buf) - 1, fmt, args);
+	va_end(args);
+	buf[i++] = '\r';
+	HvCall_writeLogBuffer(buf, i);
+	spin_unlock_irqrestore(&consoleloglock, flags);
+}
+
+/*
+ * Initialize the common fields in a charLpEvent
+ */
+static void init_data_event(struct viocharlpevent *viochar, HvLpIndex lp)
+{
+	struct HvLpEvent *hev = &viochar->event;
+
+	memset(viochar, 0, sizeof(struct viocharlpevent));
+
+	hev->flags = HV_LP_EVENT_VALID | HV_LP_EVENT_DEFERRED_ACK |
+		HV_LP_EVENT_INT;
+	hev->xType = HvLpEvent_Type_VirtualIo;
+	hev->xSubtype = viomajorsubtype_chario | viochardata;
+	hev->xSourceLp = HvLpConfig_getLpIndex();
+	hev->xTargetLp = lp;
+	hev->xSizeMinus1 = sizeof(struct viocharlpevent);
+	hev->xSourceInstanceId = viopath_sourceinst(lp);
+	hev->xTargetInstanceId = viopath_targetinst(lp);
+}
+
+static int get_chars(uint32_t vtermno, char *buf, int count)
+{
+	struct port_info *pi;
+	int n = 0;
+	unsigned long flags;
+
+	if (vtermno >= VTTY_PORTS)
+		return -EINVAL;
+	if (count == 0)
+		return 0;
+
+	pi = &port_info[vtermno];
+	spin_lock_irqsave(&consolelock, flags);
+
+	if (pi->in_end == 0)
+		goto done;
+
+	n = pi->in_end - pi->in_start;
+	if (n > count)
+		n = count;
+	memcpy(buf, &pi->in_buf[pi->in_start], n);
+	pi->in_start += n;
+	if (pi->in_start == pi->in_end) {
+		pi->in_start = 0;
+		pi->in_end = 0;
+	}
+done:
+	spin_unlock_irqrestore(&consolelock, flags);
+	return n;
+}
+
+static int put_chars(uint32_t vtermno, const char *buf, int count)
+{
+	struct viocharlpevent *viochar;
+	struct port_info *pi;
+	HvLpEvent_Rc hvrc;
+	unsigned long flags;
+	int sent = 0;
+
+	if (vtermno >= VTTY_PORTS)
+		return -EINVAL;
+
+	pi = &port_info[vtermno];
+
+	spin_lock_irqsave(&consolelock, flags);
+
+	if (viochar_is_console(pi) && !viopath_isactive(pi->lp)) {
+		spin_lock_irqsave(&consoleloglock, flags);
+		HvCall_writeLogBuffer(buf, count);
+		spin_unlock_irqrestore(&consoleloglock, flags);
+		sent = count;
+		goto done;
+	}
+
+	viochar = vio_get_event_buffer(viomajorsubtype_chario);
+	if (viochar == NULL) {
+		hvlog("\n\rviocons: Can't get viochar buffer.");
+		goto done;
+	}
+
+	while ((count > 0) && ((pi->seq - pi->ack) < VIOCHAR_WINDOW)) {
+		int len;
+
+		len = (count > VIOCHAR_MAX_DATA) ? VIOCHAR_MAX_DATA : count;
+
+		if (viochar_is_console(pi)) {
+			spin_lock_irqsave(&consoleloglock, flags);
+			HvCall_writeLogBuffer(buf, len);
+			spin_unlock_irqrestore(&consoleloglock, flags);
+		}
+
+		init_data_event(viochar, pi->lp);
+
+		viochar->len = len;
+		viochar->event.xCorrelationToken = pi->seq++;
+		viochar->event.xSizeMinus1 =
+			offsetof(struct viocharlpevent, data) + len;
+
+		memcpy(viochar->data, buf, len);
+
+		hvrc = HvCallEvent_signalLpEvent(&viochar->event);
+		if (hvrc)
+			hvlog("\n\rerror sending event! return code %d\n\r",
+				(int)hvrc);
+		sent += len;
+		count -= len;
+		buf += len;
+	}
+
+	vio_free_event_buffer(viomajorsubtype_chario, viochar);
+done:
+	spin_unlock_irqrestore(&consolelock, flags);
+	return sent;
+}
+
+static struct hv_ops hvc_get_put_ops = {
+	.get_chars = get_chars,
+	.put_chars = put_chars,
+};
+
+static int __devinit hvc_vio_probe(struct vio_dev *vdev,
+			const struct vio_device_id *id)
+{
+	struct hvc_struct *hp;
+	struct port_info *pi;
+
+	/* probed with invalid parameters. */
+	if (!vdev || !id)
+		return -EPERM;
+
+	if (vdev->unit_address >= VTTY_PORTS)
+		return -ENODEV;
+
+	pi = &port_info[vdev->unit_address];
+
+	hp = hvc_alloc(vdev->unit_address, vdev->irq, &hvc_get_put_ops,
+			VIOCHAR_MAX_DATA);
+	if (IS_ERR(hp))
+		return PTR_ERR(hp);
+	pi->hp = hp;
+	dev_set_drvdata(&vdev->dev, pi);
+
+	return 0;
+}
+
+static int __devexit hvc_vio_remove(struct vio_dev *vdev)
+{
+	struct port_info *pi = dev_get_drvdata(&vdev->dev);
+	struct hvc_struct *hp = pi->hp;
+
+	return hvc_remove(hp);
+}
+
+static struct vio_driver hvc_vio_driver = {
+	.id_table	= hvc_driver_table,
+	.probe		= hvc_vio_probe,
+	.remove		= hvc_vio_remove,
+	.driver		= {
+		.name	= hvc_driver_name,
+		.owner	= THIS_MODULE,
+	}
+};
+
+static void hvc_open_event(struct HvLpEvent *event)
+{
+	unsigned long flags;
+	struct viocharlpevent *cevent = (struct viocharlpevent *)event;
+	u8 port = cevent->virtual_device;
+	struct port_info *pi;
+	int reject = 0;
+
+	if (hvlpevent_is_ack(event)) {
+		if (port >= VTTY_PORTS)
+			return;
+
+		spin_lock_irqsave(&consolelock, flags);
+
+		pi = &port_info[port];
+		if (event->xRc == HvLpEvent_Rc_Good) {
+			pi->seq = pi->ack = 0;
+			/*
+			 * This line allows connections from the primary
+			 * partition but once one is connected from the
+			 * primary partition nothing short of a reboot
+			 * of linux will allow access from the hosting
+			 * partition again without a required iSeries fix.
+			 */
+			pi->lp = event->xTargetLp;
+		}
+
+		spin_unlock_irqrestore(&consolelock, flags);
+		if (event->xRc != HvLpEvent_Rc_Good)
+			printk(KERN_WARNING
+			       "hvc: handle_open_event: event->xRc == (%d).\n",
+			       event->xRc);
+
+		if (event->xCorrelationToken != 0) {
+			atomic_t *aptr= (atomic_t *)event->xCorrelationToken;
+			atomic_set(aptr, 1);
+		} else
+			printk(KERN_WARNING
+			       "hvc: weird...got open ack without atomic\n");
+		return;
+	}
+
+	/* This had better require an ack, otherwise complain */
+	if (!hvlpevent_need_ack(event)) {
+		printk(KERN_WARNING "hvc: viocharopen without ack bit!\n");
+		return;
+	}
+
+	spin_lock_irqsave(&consolelock, flags);
+
+	/* Make sure this is a good virtual tty */
+	if (port >= VTTY_PORTS) {
+		event->xRc = HvLpEvent_Rc_SubtypeError;
+		cevent->subtype_result_code = viorc_openRejected;
+		/*
+		 * Flag state here since we can't printk while holding
+		 * the consolelock spinlock.
+		 */
+		reject = 1;
+	} else {
+		pi = &port_info[port];
+		if ((pi->lp != HvLpIndexInvalid) &&
+				(pi->lp != event->xSourceLp)) {
+			/*
+			 * If this is tty is already connected to a different
+			 * partition, fail.
+			 */
+			event->xRc = HvLpEvent_Rc_SubtypeError;
+			cevent->subtype_result_code = viorc_openRejected;
+			reject = 2;
+		} else {
+			pi->lp = event->xSourceLp;
+			event->xRc = HvLpEvent_Rc_Good;
+			cevent->subtype_result_code = viorc_good;
+			pi->seq = pi->ack = 0;
+		}
+	}
+
+	spin_unlock_irqrestore(&consolelock, flags);
+
+	if (reject == 1)
+		printk(KERN_WARNING "hvc: open rejected: bad virtual tty.\n");
+	else if (reject == 2)
+		printk(KERN_WARNING "hvc: open rejected: console in exclusive "
+				"use by another partition.\n");
+
+	/* Return the acknowledgement */
+	HvCallEvent_ackLpEvent(event);
+}
+
+/*
+ * Handle a close charLpEvent.  This should ONLY be an Interrupt because the
+ * virtual console should never actually issue a close event to the hypervisor
+ * because the virtual console never goes away.  A close event coming from the
+ * hypervisor simply means that there are no client consoles connected to the
+ * virtual console.
+ */
+static void hvc_close_event(struct HvLpEvent *event)
+{
+	unsigned long flags;
+	struct viocharlpevent *cevent = (struct viocharlpevent *)event;
+	u8 port = cevent->virtual_device;
+
+	if (!hvlpevent_is_int(event)) {
+		printk(KERN_WARNING
+			"hvc: got unexpected close acknowlegement\n");
+		return;
+	}
+
+	if (port >= VTTY_PORTS) {
+		printk(KERN_WARNING
+			"hvc: close message from invalid virtual device.\n");
+		return;
+	}
+
+	/* For closes, just mark the console partition invalid */
+	spin_lock_irqsave(&consolelock, flags);
+
+	if (port_info[port].lp == event->xSourceLp)
+		port_info[port].lp = HvLpIndexInvalid;
+
+	spin_unlock_irqrestore(&consolelock, flags);
+}
+
+static void hvc_data_event(struct HvLpEvent *event)
+{
+	unsigned long flags;
+	struct viocharlpevent *cevent = (struct viocharlpevent *)event;
+	struct port_info *pi;
+	int n;
+	u8 port = cevent->virtual_device;
+
+	if (port >= VTTY_PORTS) {
+		printk(KERN_WARNING "hvc: data on invalid virtual device %d\n",
+				port);
+		return;
+	}
+	if (cevent->len == 0)
+		return;
+
+	/*
+	 * Change 05/01/2003 - Ryan Arnold: If a partition other than
+	 * the current exclusive partition tries to send us data
+	 * events then just drop them on the floor because we don't
+	 * want his stinking data.  He isn't authorized to receive
+	 * data because he wasn't the first one to get the console,
+	 * therefore he shouldn't be allowed to send data either.
+	 * This will work without an iSeries fix.
+	 */
+	pi = &port_info[port];
+	if (pi->lp != event->xSourceLp)
+		return;
+
+	spin_lock_irqsave(&consolelock, flags);
+
+	n = IN_BUF_SIZE - pi->in_end;
+	if (n > cevent->len)
+		n = cevent->len;
+	if (n > 0) {
+		memcpy(&pi->in_buf[pi->in_end], cevent->data, n);
+		pi->in_end += n;
+	}
+	spin_unlock_irqrestore(&consolelock, flags);
+	if (n == 0)
+		printk(KERN_WARNING "hvc: input buffer overflow\n");
+}
+
+static void hvc_ack_event(struct HvLpEvent *event)
+{
+	struct viocharlpevent *cevent = (struct viocharlpevent *)event;
+	unsigned long flags;
+	u8 port = cevent->virtual_device;
+
+	if (port >= VTTY_PORTS) {
+		printk(KERN_WARNING "hvc: data on invalid virtual device\n");
+		return;
+	}
+
+	spin_lock_irqsave(&consolelock, flags);
+	port_info[port].ack = event->xCorrelationToken;
+	spin_unlock_irqrestore(&consolelock, flags);
+}
+
+static void hvc_config_event(struct HvLpEvent *event)
+{
+	struct viocharlpevent *cevent = (struct viocharlpevent *)event;
+
+	if (cevent->data[0] == 0x01)
+		printk(KERN_INFO "hvc: window resized to %d: %d: %d: %d\n",
+		       cevent->data[1], cevent->data[2],
+		       cevent->data[3], cevent->data[4]);
+	else
+		printk(KERN_WARNING "hvc: unknown config event\n");
+}
+
+static void hvc_handle_event(struct HvLpEvent *event)
+{
+	int charminor;
+
+	if (event == NULL)
+		return;
+
+	charminor = event->xSubtype & VIOMINOR_SUBTYPE_MASK;
+	switch (charminor) {
+	case viocharopen:
+		hvc_open_event(event);
+		break;
+	case viocharclose:
+		hvc_close_event(event);
+		break;
+	case viochardata:
+		hvc_data_event(event);
+		break;
+	case viocharack:
+		hvc_ack_event(event);
+		break;
+	case viocharconfig:
+		hvc_config_event(event);
+		break;
+	default:
+		if (hvlpevent_is_int(event) && hvlpevent_need_ack(event)) {
+			event->xRc = HvLpEvent_Rc_InvalidSubtype;
+			HvCallEvent_ackLpEvent(event);
+		}
+	}
+}
+
+static int send_open(HvLpIndex remoteLp, void *sem)
+{
+	return HvCallEvent_signalLpEventFast(remoteLp,
+			HvLpEvent_Type_VirtualIo,
+			viomajorsubtype_chario | viocharopen,
+			HvLpEvent_AckInd_DoAck, HvLpEvent_AckType_ImmediateAck,
+			viopath_sourceinst(remoteLp),
+			viopath_targetinst(remoteLp),
+			(u64)(unsigned long)sem, VIOVERSION << 16,
+			0, 0, 0, 0);
+}
+
+static int hvc_vio_init(void)
+{
+	atomic_t wait_flag;
+	int rc;
+
+	/* +2 for fudge */
+	rc = viopath_open(HvLpConfig_getPrimaryLpIndex(),
+			viomajorsubtype_chario, VIOCHAR_WINDOW + 2);
+	if (rc)
+		printk(KERN_WARNING "hvc: error opening to primary %d\n", rc);
+
+	if (viopath_hostLp == HvLpIndexInvalid)
+		vio_set_hostlp();
+
+	/*
+	 * And if the primary is not the same as the hosting LP, open to the
+	 * hosting lp
+	 */
+	if ((viopath_hostLp != HvLpIndexInvalid) &&
+	    (viopath_hostLp != HvLpConfig_getPrimaryLpIndex())) {
+		printk(KERN_INFO "hvc: open path to hosting (%d)\n",
+				viopath_hostLp);
+		rc = viopath_open(viopath_hostLp, viomajorsubtype_chario,
+				VIOCHAR_WINDOW + 2);	/* +2 for fudge */
+		if (rc)
+			printk(KERN_WARNING
+				"error opening to partition %d: %d\n",
+				viopath_hostLp, rc);
+	}
+
+	if (vio_setHandler(viomajorsubtype_chario, hvc_handle_event) < 0)
+		printk(KERN_WARNING
+			"hvc: error seting handler for console events!\n");
+
+	/*
+	 * First, try to open the console to the hosting lp.
+	 * Wait on a semaphore for the response.
+	 */
+	atomic_set(&wait_flag, 0);
+	if ((viopath_isactive(viopath_hostLp)) &&
+	    (send_open(viopath_hostLp, &wait_flag) == 0)) {
+		printk(KERN_INFO "hvc: hosting partition %d\n", viopath_hostLp);
+		while (atomic_read(&wait_flag) == 0)
+			mb();
+		atomic_set(&wait_flag, 0);
+	}
+
+	/*
+	 * If we don't have an active console, try the primary
+	 */
+	if ((!viopath_isactive(port_info[0].lp)) &&
+	    (viopath_isactive(HvLpConfig_getPrimaryLpIndex())) &&
+	    (send_open(HvLpConfig_getPrimaryLpIndex(), &wait_flag) == 0)) {
+		printk(KERN_INFO "hvc: opening console to primary partition\n");
+		while (atomic_read(&wait_flag) == 0)
+			mb();
+	}
+
+	/* Register as a vio device to receive callbacks */
+	rc = vio_register_driver(&hvc_vio_driver);
+
+	return rc;
+}
+module_init(hvc_vio_init); /* after drivers/char/hvc_console.c */
+
+static void hvc_vio_exit(void)
+{
+	vio_unregister_driver(&hvc_vio_driver);
+}
+module_exit(hvc_vio_exit);
+
+/* the device tree order defines our numbering */
+static int hvc_find_vtys(void)
+{
+	struct device_node *vty;
+	int num_found = 0;
+
+	for (vty = of_find_node_by_name(NULL, "vty"); vty != NULL;
+			vty = of_find_node_by_name(vty, "vty")) {
+		uint32_t *vtermno;
+
+		/* We have statically defined space for only a certain number
+		 * of console adapters.
+		 */
+		if ((num_found >= MAX_NR_HVC_CONSOLES) ||
+				(num_found >= VTTY_PORTS))
+			break;
+
+		vtermno = (uint32_t *)get_property(vty, "reg", NULL);
+		if (!vtermno)
+			continue;
+
+		if (!device_is_compatible(vty, "IBM,iSeries-vty"))
+			continue;
+
+		if (num_found == 0)
+			add_preferred_console("hvc", 0, NULL);
+		hvc_instantiate(*vtermno, num_found, &hvc_get_put_ops);
+		++num_found;
+	}
+
+	return num_found;
+}
+console_initcall(hvc_find_vtys);
diff --git a/drivers/char/hvc_rtas.c b/drivers/char/hvc_rtas.c
index 57106e02..4b97eaf 100644
--- a/drivers/char/hvc_rtas.c
+++ b/drivers/char/hvc_rtas.c
@@ -94,7 +94,7 @@
 
 	/* Allocate an hvc_struct for the console device we instantiated
 	 * earlier.  Save off hp so that we can return it on exit */
-	hp = hvc_alloc(hvc_rtas_cookie, NO_IRQ, &hvc_rtas_get_put_ops);
+	hp = hvc_alloc(hvc_rtas_cookie, NO_IRQ, &hvc_rtas_get_put_ops, 16);
 	if (IS_ERR(hp))
 		return PTR_ERR(hp);
 
diff --git a/drivers/char/hvc_vio.c b/drivers/char/hvc_vio.c
index 9add81ce..cc95941 100644
--- a/drivers/char/hvc_vio.c
+++ b/drivers/char/hvc_vio.c
@@ -90,7 +90,8 @@
 	if (!vdev || !id)
 		return -EPERM;
 
-	hp = hvc_alloc(vdev->unit_address, vdev->irq, &hvc_get_put_ops);
+	hp = hvc_alloc(vdev->unit_address, vdev->irq, &hvc_get_put_ops,
+			MAX_VIO_PUT_CHARS);
 	if (IS_ERR(hp))
 		return PTR_ERR(hp);
 	dev_set_drvdata(&vdev->dev, hp);
@@ -140,7 +141,7 @@
 
 	for (vty = of_find_node_by_name(NULL, "vty"); vty != NULL;
 			vty = of_find_node_by_name(vty, "vty")) {
-		uint32_t *vtermno;
+		const uint32_t *vtermno;
 
 		/* We have statically defined space for only a certain number
 		 * of console adapters.
@@ -148,7 +149,7 @@
 		if (num_found >= MAX_NR_HVC_CONSOLES)
 			break;
 
-		vtermno = (uint32_t *)get_property(vty, "reg", NULL);
+		vtermno = get_property(vty, "reg", NULL);
 		if (!vtermno)
 			continue;
 
diff --git a/drivers/char/hvsi.c b/drivers/char/hvsi.c
index 017f755..a89a95f 100644
--- a/drivers/char/hvsi.c
+++ b/drivers/char/hvsi.c
@@ -1274,11 +1274,10 @@
 			vty != NULL;
 			vty = of_find_compatible_node(vty, "serial", "hvterm-protocol")) {
 		struct hvsi_struct *hp;
-		uint32_t *vtermno;
-		uint32_t *irq;
+		const uint32_t *vtermno, *irq;
 
-		vtermno = (uint32_t *)get_property(vty, "reg", NULL);
-		irq = (uint32_t *)get_property(vty, "interrupts", NULL);
+		vtermno = get_property(vty, "reg", NULL);
+		irq = get_property(vty, "interrupts", NULL);
 		if (!vtermno || !irq)
 			continue;
 
diff --git a/drivers/char/tpm/tpm_atmel.h b/drivers/char/tpm/tpm_atmel.h
index 2e68eeb..aefd683 100644
--- a/drivers/char/tpm/tpm_atmel.h
+++ b/drivers/char/tpm/tpm_atmel.h
@@ -37,7 +37,7 @@
 {
 	struct device_node *dn;
 	unsigned long address, size;
-	unsigned int *reg;
+	const unsigned int *reg;
 	int reglen;
 	int naddrc;
 	int nsizec;
@@ -52,7 +52,7 @@
 		return NULL;
 	}
 
-	reg = (unsigned int *) get_property(dn, "reg", &reglen);
+	reg = get_property(dn, "reg", &reglen);
 	naddrc = prom_n_addr_cells(dn);
 	nsizec = prom_n_size_cells(dn);
 
diff --git a/drivers/char/viocons.c b/drivers/char/viocons.c
index 766f786..f3efeaf 100644
--- a/drivers/char/viocons.c
+++ b/drivers/char/viocons.c
@@ -43,7 +43,6 @@
 #include <linux/sysrq.h>
 
 #include <asm/iseries/vio.h>
-
 #include <asm/iseries/hv_lp_event.h>
 #include <asm/iseries/hv_call_event.h>
 #include <asm/iseries/hv_lp_config.h>
@@ -67,35 +66,6 @@
 extern int sysrq_enabled;
 #endif
 
-/*
- * The structure of the events that flow between us and OS/400.  You can't
- * mess with this unless the OS/400 side changes too
- */
-struct viocharlpevent {
-	struct HvLpEvent event;
-	u32 reserved;
-	u16 version;
-	u16 subtype_result_code;
-	u8 virtual_device;
-	u8 len;
-	u8 data[VIOCHAR_MAX_DATA];
-};
-
-#define VIOCHAR_WINDOW		10
-#define VIOCHAR_HIGHWATERMARK	3
-
-enum viocharsubtype {
-	viocharopen = 0x0001,
-	viocharclose = 0x0002,
-	viochardata = 0x0003,
-	viocharack = 0x0004,
-	viocharconfig = 0x0005
-};
-
-enum viochar_rc {
-	viochar_rc_ebusy = 1
-};
-
 #define VIOCHAR_NUM_BUF		16
 
 /*
@@ -1183,6 +1153,7 @@
 		port_info[i].magic = VIOTTY_MAGIC;
 	}
 	HvCall_setLogBufferFormatAndCodepage(HvCall_LogBuffer_ASCII, 437);
+	add_preferred_console("viocons", 0, NULL);
 	register_console(&viocons_early);
 	return 0;
 }
diff --git a/drivers/char/viotape.c b/drivers/char/viotape.c
index b72b204..73c78bf 100644
--- a/drivers/char/viotape.c
+++ b/drivers/char/viotape.c
@@ -940,7 +940,6 @@
 
 static int viotape_probe(struct vio_dev *vdev, const struct vio_device_id *id)
 {
-	char tapename[32];
 	int i = vdev->unit_address;
 	int j;
 
@@ -956,10 +955,9 @@
 			"iseries!vt%d", i);
 	class_device_create(tape_class, NULL, MKDEV(VIOTAPE_MAJOR, i | 0x80),
 			NULL, "iseries!nvt%d", i);
-	sprintf(tapename, "iseries/vt%d", i);
-	printk(VIOTAPE_KERN_INFO "tape %s is iSeries "
+	printk(VIOTAPE_KERN_INFO "tape iseries/vt%d is iSeries "
 			"resource %10.10s type %4.4s, model %3.3s\n",
-			tapename, viotape_unitinfo[i].rsrcname,
+			i, viotape_unitinfo[i].rsrcname,
 			viotape_unitinfo[i].type, viotape_unitinfo[i].model);
 	return 0;
 }
diff --git a/drivers/i2c/busses/i2c-powermac.c b/drivers/i2c/busses/i2c-powermac.c
index 53bb435..d658d91 100644
--- a/drivers/i2c/busses/i2c-powermac.c
+++ b/drivers/i2c/busses/i2c-powermac.c
@@ -207,7 +207,8 @@
 	struct pmac_i2c_bus *bus = dev->platform_data;
 	struct device_node *parent = NULL;
 	struct i2c_adapter *adapter;
-	char name[32], *basename;
+	char name[32];
+	const char *basename;
 	int rc;
 
 	if (bus == NULL)
diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c
index ebf961f..fa46856 100644
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -1154,7 +1154,7 @@
 pmac_ide_setup_device(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif)
 {
 	struct device_node *np = pmif->node;
-	int *bidp;
+	const int *bidp;
 
 	pmif->cable_80 = 0;
 	pmif->broken_dma = pmif->broken_dma_warn = 0;
@@ -1176,14 +1176,14 @@
 		pmif->broken_dma = 1;
 	}
 
-	bidp = (int *)get_property(np, "AAPL,bus-id", NULL);
+	bidp = get_property(np, "AAPL,bus-id", NULL);
 	pmif->aapl_bus_id =  bidp ? *bidp : 0;
 
 	/* Get cable type from device-tree */
 	if (pmif->kind == controller_kl_ata4 || pmif->kind == controller_un_ata6
 	    || pmif->kind == controller_k2_ata6
 	    || pmif->kind == controller_sh_ata6) {
-		char* cable = get_property(np, "cable-type", NULL);
+		const char* cable = get_property(np, "cable-type", NULL);
 		if (cable && !strncmp(cable, "80-", 3))
 			pmif->cable_80 = 1;
 	}
diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c
index 82657bc..d562160 100644
--- a/drivers/macintosh/macio_asic.c
+++ b/drivers/macintosh/macio_asic.c
@@ -139,7 +139,9 @@
 {
 	struct macio_dev * macio_dev;
 	struct of_device * of;
-	char *scratch, *compat, *compat2;
+	char *scratch;
+	const char *compat, *compat2;
+
 	int i = 0;
 	int length, cplen, cplen2, seen = 0;
 
@@ -173,7 +175,7 @@
          * it's not really legal to split it out with commas. We split it
          * up using a number of environment variables instead. */
 
-	compat = (char *) get_property(of->node, "compatible", &cplen);
+	compat = get_property(of->node, "compatible", &cplen);
 	compat2 = compat;
 	cplen2= cplen;
 	while (compat && cplen > 0) {
@@ -454,7 +456,7 @@
 					       struct resource *parent_res)
 {
 	struct macio_dev *dev;
-	u32 *reg;
+	const u32 *reg;
 	
 	if (np == NULL)
 		return NULL;
@@ -489,7 +491,7 @@
 #endif
 			MAX_NODE_NAME_SIZE, np->name);
 	} else {
-		reg = (u32 *)get_property(np, "reg", NULL);
+		reg = get_property(np, "reg", NULL);
 		sprintf(dev->ofdev.dev.bus_id, "%1d.%08x:%.*s",
 			chip->lbus.index,
 			reg ? *reg : 0, MAX_NODE_NAME_SIZE, np->name);
diff --git a/drivers/macintosh/macio_sysfs.c b/drivers/macintosh/macio_sysfs.c
index cae24a1..8566bdf 100644
--- a/drivers/macintosh/macio_sysfs.c
+++ b/drivers/macintosh/macio_sysfs.c
@@ -16,12 +16,12 @@
 compatible_show (struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct of_device *of;
-	char *compat;
+	const char *compat;
 	int cplen;
 	int length = 0;
 
 	of = &to_macio_device (dev)->ofdev;
-	compat = (char *) get_property(of->node, "compatible", &cplen);
+	compat = get_property(of->node, "compatible", &cplen);
 	if (!compat) {
 		*buf = '\0';
 		return 0;
@@ -42,12 +42,12 @@
 			      char *buf)
 {
 	struct of_device *of;
-	char *compat;
+	const char *compat;
 	int cplen;
 	int length;
 
 	of = &to_macio_device (dev)->ofdev;
-	compat = (char *) get_property (of->node, "compatible", &cplen);
+	compat = get_property(of->node, "compatible", &cplen);
 	if (!compat) compat = "", cplen = 1;
 	length = sprintf (buf, "of:N%sT%s", of->node->name, of->node->type);
 	buf += length;
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index 00ef468..090e40f 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -454,7 +454,7 @@
 int __init smu_init (void)
 {
 	struct device_node *np;
-	u32 *data;
+	const u32 *data;
 
         np = of_find_node_by_type(NULL, "smu");
         if (np == NULL)
@@ -490,7 +490,7 @@
 		printk(KERN_ERR "SMU: Can't find doorbell GPIO !\n");
 		goto fail;
 	}
-	data = (u32 *)get_property(smu->db_node, "reg", NULL);
+	data = get_property(smu->db_node, "reg", NULL);
 	if (data == NULL) {
 		of_node_put(smu->db_node);
 		smu->db_node = NULL;
@@ -511,7 +511,7 @@
 		smu->msg_node = of_find_node_by_name(NULL, "smu-interrupt");
 		if (smu->msg_node == NULL)
 			break;
-		data = (u32 *)get_property(smu->msg_node, "reg", NULL);
+		data = get_property(smu->msg_node, "reg", NULL);
 		if (data == NULL) {
 			of_node_put(smu->msg_node);
 			smu->msg_node = NULL;
@@ -982,11 +982,11 @@
 /* Note: Only allowed to return error code in pointers (using ERR_PTR)
  * when interruptible is 1
  */
-struct smu_sdbp_header *__smu_get_sdb_partition(int id, unsigned int *size,
-						int interruptible)
+const struct smu_sdbp_header *__smu_get_sdb_partition(int id,
+		unsigned int *size, int interruptible)
 {
 	char pname[32];
-	struct smu_sdbp_header *part;
+	const struct smu_sdbp_header *part;
 
 	if (!smu)
 		return NULL;
@@ -1003,8 +1003,7 @@
 	} else
 		mutex_lock(&smu_part_access);
 
-	part = (struct smu_sdbp_header *)get_property(smu->of_node,
-						      pname, size);
+	part = get_property(smu->of_node, pname, size);
 	if (part == NULL) {
 		DPRINTK("trying to extract from SMU ...\n");
 		part = smu_create_sdb_partition(id);
@@ -1015,7 +1014,7 @@
 	return part;
 }
 
-struct smu_sdbp_header *smu_get_sdb_partition(int id, unsigned int *size)
+const struct smu_sdbp_header *smu_get_sdb_partition(int id, unsigned int *size)
 {
 	return __smu_get_sdb_partition(id, size, 0);
 }
@@ -1094,7 +1093,7 @@
 		pp->mode = smu_file_events;
 		return 0;
 	} else if (hdr.cmdtype == SMU_CMDTYPE_GET_PARTITION) {
-		struct smu_sdbp_header *part;
+		const struct smu_sdbp_header *part;
 		part = __smu_get_sdb_partition(hdr.cmd, NULL, 1);
 		if (part == NULL)
 			return -EINVAL;
diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c
index 7f86478..a0f30d0 100644
--- a/drivers/macintosh/therm_adt746x.c
+++ b/drivers/macintosh/therm_adt746x.c
@@ -47,7 +47,7 @@
 
 static u8 default_limits_local[3] = {70, 50, 70};    /* local, sensor1, sensor2 */
 static u8 default_limits_chip[3] = {80, 65, 80};    /* local, sensor1, sensor2 */
-static char *sensor_location[3] = {NULL, NULL, NULL};
+static const char *sensor_location[3] = {NULL, NULL, NULL};
 
 static int limit_adjust = 0;
 static int fan_speed = -1;
@@ -553,7 +553,7 @@
 thermostat_init(void)
 {
 	struct device_node* np;
-	u32 *prop;
+	const u32 *prop;
 	int i = 0, offset = 0;
 	
 	np = of_find_node_by_name(NULL, "fan");
@@ -566,13 +566,13 @@
 	else
 		return -ENODEV;
 
-	prop = (u32 *)get_property(np, "hwsensor-params-version", NULL);
+	prop = get_property(np, "hwsensor-params-version", NULL);
 	printk(KERN_INFO "adt746x: version %d (%ssupported)\n", *prop,
 			 (*prop == 1)?"":"un");
 	if (*prop != 1)
 		return -ENODEV;
 
-	prop = (u32 *)get_property(np, "reg", NULL);
+	prop = get_property(np, "reg", NULL);
 	if (!prop)
 		return -ENODEV;
 
diff --git a/drivers/macintosh/therm_pm72.c b/drivers/macintosh/therm_pm72.c
index 20bf672..d00c0c3 100644
--- a/drivers/macintosh/therm_pm72.c
+++ b/drivers/macintosh/therm_pm72.c
@@ -660,7 +660,7 @@
 {
 	struct device_node *np;
 	char nodename[64];
-	u8 *data;
+	const u8 *data;
 	int len;
 
 	/* prom.c routine for finding a node by path is a bit brain dead
@@ -673,7 +673,7 @@
 		printk(KERN_ERR "therm_pm72: Failed to retrieve cpuid node from device-tree\n");
 		return -ENODEV;
 	}
-	data = (u8 *)get_property(np, "cpuid", &len);
+	data = get_property(np, "cpuid", &len);
 	if (data == NULL) {
 		printk(KERN_ERR "therm_pm72: Failed to retrieve cpuid property from device-tree\n");
 		of_node_put(np);
@@ -1336,7 +1336,7 @@
 	 */
 	u3 = of_find_node_by_path("/u3@0,f8000000");
 	if (u3 != NULL) {
-		u32 *vers = (u32 *)get_property(u3, "device-rev", NULL);
+		const u32 *vers = get_property(u3, "device-rev", NULL);
 		if (vers)
 			if (((*vers) & 0x3f) < 0x34)
 				u3h = 0;
@@ -2111,8 +2111,8 @@
 
 	while ((np = of_get_next_child(fcu_node, np)) != NULL) {
 		int type = -1;
-		char *loc;
-		u32 *reg;
+		const char *loc;
+		const u32 *reg;
 
 		DBG(" control: %s, type: %s\n", np->name, np->type);
 
@@ -2128,8 +2128,8 @@
 			continue;
 
 		/* Lookup for a matching location */
-		loc = (char *)get_property(np, "location", NULL);
-		reg = (u32 *)get_property(np, "reg", NULL);
+		loc = get_property(np, "location", NULL);
+		reg = get_property(np, "reg", NULL);
 		if (loc == NULL || reg == NULL)
 			continue;
 		DBG(" matching location: %s, reg: 0x%08x\n", loc, *reg);
diff --git a/drivers/macintosh/therm_windtunnel.c b/drivers/macintosh/therm_windtunnel.c
index c7d1c29..738faab 100644
--- a/drivers/macintosh/therm_windtunnel.c
+++ b/drivers/macintosh/therm_windtunnel.c
@@ -484,14 +484,14 @@
 static int __init
 g4fan_init( void )
 {
-	struct apple_thermal_info *info;
+	const struct apple_thermal_info *info;
 	struct device_node *np;
 
 	init_MUTEX( &x.lock );
 
 	if( !(np=of_find_node_by_name(NULL, "power-mgt")) )
 		return -ENODEV;
-	info = (struct apple_thermal_info*)get_property(np, "thermal-info", NULL);
+	info = get_property(np, "thermal-info", NULL);
 	of_node_put(np);
 
 	if( !info || !machine_is_compatible("PowerMac3,6") )
diff --git a/drivers/macintosh/via-cuda.c b/drivers/macintosh/via-cuda.c
index 69d5452..7512d1c 100644
--- a/drivers/macintosh/via-cuda.c
+++ b/drivers/macintosh/via-cuda.c
@@ -123,7 +123,7 @@
 {
     struct adb_request req;
     phys_addr_t taddr;
-    u32 *reg;
+    const u32 *reg;
     int err;
 
     if (vias != 0)
@@ -132,7 +132,7 @@
     if (vias == 0)
 	return 0;
 
-    reg = (u32 *)get_property(vias, "reg", NULL);
+    reg = get_property(vias, "reg", NULL);
     if (reg == NULL) {
 	    printk(KERN_ERR "via-cuda: No \"reg\" property !\n");
 	    goto fail;
diff --git a/drivers/macintosh/via-pmu-led.c b/drivers/macintosh/via-pmu-led.c
index 5189d54..179af10 100644
--- a/drivers/macintosh/via-pmu-led.c
+++ b/drivers/macintosh/via-pmu-led.c
@@ -120,7 +120,7 @@
 	dt = of_find_node_by_path("/");
 	if (dt == NULL)
 		return -ENODEV;
-	model = (const char *)get_property(dt, "model", NULL);
+	model = get_property(dt, "model", NULL);
 	if (model == NULL)
 		return -ENODEV;
 	if (strncmp(model, "PowerBook", strlen("PowerBook")) != 0 &&
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index ea38680..0df500b 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -280,7 +280,7 @@
 int __init find_via_pmu(void)
 {
 	u64 taddr;
-	u32 *reg;
+	const u32 *reg;
 
 	if (via != 0)
 		return 1;
@@ -288,7 +288,7 @@
 	if (vias == NULL)
 		return 0;
 
-	reg = (u32 *)get_property(vias, "reg", NULL);
+	reg = get_property(vias, "reg", NULL);
 	if (reg == NULL) {
 		printk(KERN_ERR "via-pmu: No \"reg\" property !\n");
 		goto fail;
@@ -330,7 +330,7 @@
 		
 		gpiop = of_find_node_by_name(NULL, "gpio");
 		if (gpiop) {
-			reg = (u32 *)get_property(gpiop, "reg", NULL);
+			reg = get_property(gpiop, "reg", NULL);
 			if (reg)
 				gaddr = of_translate_address(gpiop, reg);
 			if (gaddr != OF_BAD_ADDR)
@@ -479,9 +479,9 @@
 		pmu_batteries[1].flags |= PMU_BATT_TYPE_SMART;
 	} else {
 		struct device_node* prim = find_devices("power-mgt");
-		u32 *prim_info = NULL;
+		const u32 *prim_info = NULL;
 		if (prim)
-			prim_info = (u32 *)get_property(prim, "prim-info", NULL);
+			prim_info = get_property(prim, "prim-info", NULL);
 		if (prim_info) {
 			/* Other stuffs here yet unknown */
 			pmu_battery_count = (prim_info[6] >> 16) & 0xff;
diff --git a/drivers/macintosh/windfarm_pm81.c b/drivers/macintosh/windfarm_pm81.c
index f1df6ef..2ff546e 100644
--- a/drivers/macintosh/windfarm_pm81.c
+++ b/drivers/macintosh/windfarm_pm81.c
@@ -396,7 +396,7 @@
 static void wf_smu_create_cpu_fans(void)
 {
 	struct wf_cpu_pid_param pid_param;
-	struct smu_sdbp_header *hdr;
+	const struct smu_sdbp_header *hdr;
 	struct smu_sdbp_cpupiddata *piddata;
 	struct smu_sdbp_fvt *fvt;
 	s32 tmax, tdelta, maxpow, powadj;
@@ -702,7 +702,7 @@
 
 static int wf_init_pm(void)
 {
-	struct smu_sdbp_header *hdr;
+	const struct smu_sdbp_header *hdr;
 
 	hdr = smu_get_sdb_partition(SMU_SDB_SENSORTREE_ID, NULL);
 	if (hdr != 0) {
diff --git a/drivers/macintosh/windfarm_pm91.c b/drivers/macintosh/windfarm_pm91.c
index 0d6372e..59e9ffe 100644
--- a/drivers/macintosh/windfarm_pm91.c
+++ b/drivers/macintosh/windfarm_pm91.c
@@ -144,7 +144,7 @@
 static void wf_smu_create_cpu_fans(void)
 {
 	struct wf_cpu_pid_param pid_param;
-	struct smu_sdbp_header *hdr;
+	const struct smu_sdbp_header *hdr;
 	struct smu_sdbp_cpupiddata *piddata;
 	struct smu_sdbp_fvt *fvt;
 	s32 tmax, tdelta, maxpow, powadj;
diff --git a/drivers/macintosh/windfarm_smu_controls.c b/drivers/macintosh/windfarm_smu_controls.c
index a9e88ed..bff1f37 100644
--- a/drivers/macintosh/windfarm_smu_controls.c
+++ b/drivers/macintosh/windfarm_smu_controls.c
@@ -159,14 +159,15 @@
 					      int pwm_fan)
 {
 	struct smu_fan_control *fct;
-	s32 *v; u32 *reg;
-	char *l;
+	const s32 *v;
+	const u32 *reg;
+	const char *l;
 
 	fct = kmalloc(sizeof(struct smu_fan_control), GFP_KERNEL);
 	if (fct == NULL)
 		return NULL;
 	fct->ctrl.ops = &smu_fan_ops;
-	l = (char *)get_property(node, "location", NULL);
+	l = get_property(node, "location", NULL);
 	if (l == NULL)
 		goto fail;
 
@@ -223,17 +224,17 @@
 		goto fail;
 
 	/* Get min & max values*/
-	v = (s32 *)get_property(node, "min-value", NULL);
+	v = get_property(node, "min-value", NULL);
 	if (v == NULL)
 		goto fail;
 	fct->min = *v;
-	v = (s32 *)get_property(node, "max-value", NULL);
+	v = get_property(node, "max-value", NULL);
 	if (v == NULL)
 		goto fail;
 	fct->max = *v;
 
 	/* Get "reg" value */
-	reg = (u32 *)get_property(node, "reg", NULL);
+	reg = get_property(node, "reg", NULL);
 	if (reg == NULL)
 		goto fail;
 	fct->reg = *reg;
diff --git a/drivers/macintosh/windfarm_smu_sat.c b/drivers/macintosh/windfarm_smu_sat.c
index e295a07..aceb61d 100644
--- a/drivers/macintosh/windfarm_smu_sat.c
+++ b/drivers/macintosh/windfarm_smu_sat.c
@@ -233,15 +233,15 @@
 {
 	struct wf_sat *sat;
 	struct wf_sat_sensor *sens;
-	u32 *reg;
-	char *loc, *type;
+	const u32 *reg;
+	const char *loc, *type;
 	u8 addr, chip, core;
 	struct device_node *child;
 	int shift, cpu, index;
 	char *name;
 	int vsens[2], isens[2];
 
-	reg = (u32 *) get_property(dev, "reg", NULL);
+	reg = get_property(dev, "reg", NULL);
 	if (reg == NULL)
 		return;
 	addr = *reg;
@@ -268,7 +268,7 @@
 	isens[0] = isens[1] = -1;
 	child = NULL;
 	while ((child = of_get_next_child(dev, child)) != NULL) {
-		reg = (u32 *) get_property(child, "reg", NULL);
+		reg = get_property(child, "reg", NULL);
 		type = get_property(child, "device_type", NULL);
 		loc = get_property(child, "location", NULL);
 		if (reg == NULL || loc == NULL)
diff --git a/drivers/macintosh/windfarm_smu_sensors.c b/drivers/macintosh/windfarm_smu_sensors.c
index bed25dc..defe992 100644
--- a/drivers/macintosh/windfarm_smu_sensors.c
+++ b/drivers/macintosh/windfarm_smu_sensors.c
@@ -198,14 +198,14 @@
 static struct smu_ad_sensor *smu_ads_create(struct device_node *node)
 {
 	struct smu_ad_sensor *ads;
-	char *c, *l;
-	u32 *v;
+	const char *c, *l;
+	const u32 *v;
 
 	ads = kmalloc(sizeof(struct smu_ad_sensor), GFP_KERNEL);
 	if (ads == NULL)
 		return NULL;
-	c = (char *)get_property(node, "device_type", NULL);
-	l = (char *)get_property(node, "location", NULL);
+	c = get_property(node, "device_type", NULL);
+	l = get_property(node, "location", NULL);
 	if (c == NULL || l == NULL)
 		goto fail;
 
@@ -255,7 +255,7 @@
 	} else
 		goto fail;
 
-	v = (u32 *)get_property(node, "reg", NULL);
+	v = get_property(node, "reg", NULL);
 	if (v == NULL)
 		goto fail;
 	ads->reg = *v;
@@ -382,7 +382,7 @@
 
 static void smu_fetch_param_partitions(void)
 {
-	struct smu_sdbp_header *hdr;
+	const struct smu_sdbp_header *hdr;
 
 	/* Get CPU voltage/current/power calibration data */
 	hdr = smu_get_sdb_partition(SMU_SDB_CPUVCP_ID, NULL);
diff --git a/drivers/net/bmac.c b/drivers/net/bmac.c
index 6fad83f..7116096 100644
--- a/drivers/net/bmac.c
+++ b/drivers/net/bmac.c
@@ -1264,7 +1264,8 @@
 {
 	int j, rev, ret;
 	struct bmac_data *bp;
-	unsigned char *addr;
+	const unsigned char *prop_addr;
+	unsigned char addr[6];
 	struct net_device *dev;
 	int is_bmac_plus = ((int)match->data) != 0;
 
@@ -1272,14 +1273,16 @@
 		printk(KERN_ERR "BMAC: can't use, need 3 addrs and 3 intrs\n");
 		return -ENODEV;
 	}
-	addr = get_property(macio_get_of_node(mdev), "mac-address", NULL);
-	if (addr == NULL) {
-		addr = get_property(macio_get_of_node(mdev), "local-mac-address", NULL);
-		if (addr == NULL) {
+	prop_addr = get_property(macio_get_of_node(mdev), "mac-address", NULL);
+	if (prop_addr == NULL) {
+		prop_addr = get_property(macio_get_of_node(mdev),
+				"local-mac-address", NULL);
+		if (prop_addr == NULL) {
 			printk(KERN_ERR "BMAC: Can't get mac-address\n");
 			return -ENODEV;
 		}
 	}
+	memcpy(addr, prop_addr, sizeof(addr));
 
 	dev = alloc_etherdev(PRIV_BYTES);
 	if (!dev) {
diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c
index 0464e78..e56eac8 100644
--- a/drivers/net/ibmveth.c
+++ b/drivers/net/ibmveth.c
@@ -702,7 +702,8 @@
 					     desc[3].desc,
 					     desc[4].desc,
 					     desc[5].desc,
-					     correlator);
+					     correlator,
+					     &correlator);
 	} while ((lpar_rc == H_BUSY) && (retry_count--));
 
 	if(lpar_rc != H_SUCCESS && lpar_rc != H_DROPPED) {
diff --git a/drivers/net/ibmveth.h b/drivers/net/ibmveth.h
index 8385bf8..f5b25bf 100644
--- a/drivers/net/ibmveth.h
+++ b/drivers/net/ibmveth.h
@@ -41,16 +41,6 @@
 #define IbmVethMcastRemoveFilter     0x2UL
 #define IbmVethMcastClearFilterTable 0x3UL
 
-/* hcall numbers */
-#define H_VIO_SIGNAL             0x104
-#define H_REGISTER_LOGICAL_LAN   0x114
-#define H_FREE_LOGICAL_LAN       0x118
-#define H_ADD_LOGICAL_LAN_BUFFER 0x11C
-#define H_SEND_LOGICAL_LAN       0x120
-#define H_MULTICAST_CTRL         0x130
-#define H_CHANGE_LOGICAL_LAN_MAC 0x14C
-#define H_FREE_LOGICAL_LAN_BUFFER 0x1D4
-
 /* hcall macros */
 #define h_register_logical_lan(ua, buflst, rxq, fltlst, mac) \
   plpar_hcall_norets(H_REGISTER_LOGICAL_LAN, ua, buflst, rxq, fltlst, mac)
@@ -61,8 +51,21 @@
 #define h_add_logical_lan_buffer(ua, buf) \
   plpar_hcall_norets(H_ADD_LOGICAL_LAN_BUFFER, ua, buf)
 
-#define h_send_logical_lan(ua, buf1, buf2, buf3, buf4, buf5, buf6, correlator) \
-  plpar_hcall_8arg_2ret(H_SEND_LOGICAL_LAN, ua, buf1, buf2, buf3, buf4, buf5, buf6, correlator, &correlator)
+static inline long h_send_logical_lan(unsigned long unit_address,
+		unsigned long desc1, unsigned long desc2, unsigned long desc3,
+		unsigned long desc4, unsigned long desc5, unsigned long desc6,
+		unsigned long corellator_in, unsigned long *corellator_out)
+{
+	long rc;
+	unsigned long retbuf[PLPAR_HCALL9_BUFSIZE];
+
+	rc = plpar_hcall9(H_SEND_LOGICAL_LAN, retbuf, unit_address, desc1,
+			desc2, desc3, desc4, desc5, desc6, corellator_in);
+
+	*corellator_out = retbuf[0];
+
+	return rc;
+}
 
 #define h_multicast_ctrl(ua, cmd, mac) \
   plpar_hcall_norets(H_MULTICAST_CTRL, ua, cmd, mac)
diff --git a/drivers/net/mace.c b/drivers/net/mace.c
index 29e4b5a..5d80e0e 100644
--- a/drivers/net/mace.c
+++ b/drivers/net/mace.c
@@ -113,7 +113,7 @@
 	struct device_node *mace = macio_get_of_node(mdev);
 	struct net_device *dev;
 	struct mace_data *mp;
-	unsigned char *addr;
+	const unsigned char *addr;
 	int j, rev, rc = -EBUSY;
 
 	if (macio_resource_count(mdev) != 3 || macio_irq_count(mdev) != 3) {
diff --git a/drivers/net/spider_net.c b/drivers/net/spider_net.c
index 647f62e..ec1a8e2 100644
--- a/drivers/net/spider_net.c
+++ b/drivers/net/spider_net.c
@@ -1698,10 +1698,10 @@
  */
 static int
 spider_net_download_firmware(struct spider_net_card *card,
-			     u8 *firmware_ptr)
+			     const void *firmware_ptr)
 {
 	int sequencer, i;
-	u32 *fw_ptr = (u32 *)firmware_ptr;
+	const u32 *fw_ptr = firmware_ptr;
 
 	/* stop sequencers */
 	spider_net_write_reg(card, SPIDER_NET_GSINIT,
@@ -1758,7 +1758,7 @@
 {
 	struct firmware *firmware = NULL;
 	struct device_node *dn;
-	u8 *fw_prop = NULL;
+	const u8 *fw_prop = NULL;
 	int err = -ENOENT;
 	int fw_size;
 
@@ -1784,7 +1784,7 @@
 	if (!dn)
 		goto out_err;
 
-	fw_prop = (u8 *)get_property(dn, "firmware", &fw_size);
+	fw_prop = get_property(dn, "firmware", &fw_size);
 	if (!fw_prop)
 		goto out_err;
 
@@ -1987,7 +1987,7 @@
 	struct net_device *netdev = card->netdev;
 	struct device_node *dn;
 	struct sockaddr addr;
-	u8 *mac;
+	const u8 *mac;
 
 	SET_MODULE_OWNER(netdev);
 	SET_NETDEV_DEV(netdev, &card->pdev->dev);
@@ -2017,7 +2017,7 @@
 	if (!dn)
 		return -EIO;
 
-	mac = (u8 *)get_property(dn, "local-mac-address", NULL);
+	mac = get_property(dn, "local-mac-address", NULL);
 	if (!mac)
 		return -EIO;
 	memcpy(addr.sa_data, mac, ETH_ALEN);
diff --git a/drivers/net/sungem.c b/drivers/net/sungem.c
index b70bbd7..d7b1d18 100644
--- a/drivers/net/sungem.c
+++ b/drivers/net/sungem.c
@@ -2896,7 +2896,7 @@
 	if (use_idprom)
 		memcpy(dev->dev_addr, idprom->id_ethaddr, 6);
 #elif defined(CONFIG_PPC_PMAC)
-	unsigned char *addr;
+	const unsigned char *addr;
 
 	addr = get_property(gp->of_node, "local-mac-address", NULL);
 	if (addr == NULL) {
diff --git a/drivers/pci/hotplug/rpaphp_core.c b/drivers/pci/hotplug/rpaphp_core.c
index 076bd6d..7288a3e 100644
--- a/drivers/pci/hotplug/rpaphp_core.c
+++ b/drivers/pci/hotplug/rpaphp_core.c
@@ -176,16 +176,16 @@
 	return 0;
 }
 
-static int get_children_props(struct device_node *dn, int **drc_indexes,
-		int **drc_names, int **drc_types, int **drc_power_domains)
+static int get_children_props(struct device_node *dn, const int **drc_indexes,
+		const int **drc_names, const int **drc_types,
+		const int **drc_power_domains)
 {
-	int *indexes, *names;
-	int *types, *domains;
+	const int *indexes, *names, *types, *domains;
 
-	indexes = (int *) get_property(dn, "ibm,drc-indexes", NULL);
-	names = (int *) get_property(dn, "ibm,drc-names", NULL);
-	types = (int *) get_property(dn, "ibm,drc-types", NULL);
-	domains = (int *) get_property(dn, "ibm,drc-power-domains", NULL);
+	indexes = get_property(dn, "ibm,drc-indexes", NULL);
+	names = get_property(dn, "ibm,drc-names", NULL);
+	types = get_property(dn, "ibm,drc-types", NULL);
+	domains = get_property(dn, "ibm,drc-power-domains", NULL);
 
 	if (!indexes || !names || !types || !domains) {
 		/* Slot does not have dynamically-removable children */
@@ -212,13 +212,13 @@
 int rpaphp_get_drc_props(struct device_node *dn, int *drc_index,
 		char **drc_name, char **drc_type, int *drc_power_domain)
 {
-	int *indexes, *names;
-	int *types, *domains;
-	unsigned int *my_index;
+	const int *indexes, *names;
+	const int *types, *domains;
+	const unsigned int *my_index;
 	char *name_tmp, *type_tmp;
 	int i, rc;
 
-	my_index = (int *) get_property(dn, "ibm,my-drc-index", NULL);
+	my_index = get_property(dn, "ibm,my-drc-index", NULL);
 	if (!my_index) {
 		/* Node isn't DLPAR/hotplug capable */
 		return -EINVAL;
@@ -265,10 +265,10 @@
 	return 1;
 }
 
-static int is_php_dn(struct device_node *dn, int **indexes, int **names,
-		int **types, int **power_domains)
+static int is_php_dn(struct device_node *dn, const int **indexes,
+		const int **names, const int **types, const int **power_domains)
 {
-	int *drc_types;
+	const int *drc_types;
 	int rc;
 
 	rc = get_children_props(dn, indexes, names, &drc_types, power_domains);
@@ -296,7 +296,7 @@
 	struct slot *slot;
 	int retval = 0;
 	int i;
-	int *indexes, *names, *types, *power_domains;
+	const int *indexes, *names, *types, *power_domains;
 	char *name, *type;
 
 	dbg("Entry %s: dn->full_name=%s\n", __FUNCTION__, dn->full_name);
diff --git a/drivers/scsi/ibmvscsi/rpa_vscsi.c b/drivers/scsi/ibmvscsi/rpa_vscsi.c
index ed22b96..01b8ac6 100644
--- a/drivers/scsi/ibmvscsi/rpa_vscsi.c
+++ b/drivers/scsi/ibmvscsi/rpa_vscsi.c
@@ -156,8 +156,8 @@
 {
 	struct device_node *rootdn;
 
-	char *ppartition_name;
-	unsigned int *p_number_ptr;
+	const char *ppartition_name;
+	const unsigned int *p_number_ptr;
 
 	/* Retrieve information about this partition */
 	rootdn = find_path_device("/");
@@ -165,14 +165,11 @@
 		return;
 	}
 
-	ppartition_name =
-		get_property(rootdn, "ibm,partition-name", NULL);
+	ppartition_name = get_property(rootdn, "ibm,partition-name", NULL);
 	if (ppartition_name)
 		strncpy(partition_name, ppartition_name,
 				sizeof(partition_name));
-	p_number_ptr =
-		(unsigned int *)get_property(rootdn, "ibm,partition-no",
-					     NULL);
+	p_number_ptr = get_property(rootdn, "ibm,partition-no", NULL);
 	if (p_number_ptr)
 		partition_number = *p_number_ptr;
 }
diff --git a/drivers/scsi/mac53c94.c b/drivers/scsi/mac53c94.c
index 89ef34d..6422de7 100644
--- a/drivers/scsi/mac53c94.c
+++ b/drivers/scsi/mac53c94.c
@@ -431,7 +431,7 @@
 	struct fsc_state *state;
 	struct Scsi_Host *host;
 	void *dma_cmd_space;
-	unsigned char *clkprop;
+	const unsigned char *clkprop;
 	int proplen, rc = -ENODEV;
 
 	if (macio_resource_count(mdev) != 2 || macio_irq_count(mdev) != 2) {
diff --git a/drivers/scsi/mesh.c b/drivers/scsi/mesh.c
index 5572981..592b52a 100644
--- a/drivers/scsi/mesh.c
+++ b/drivers/scsi/mesh.c
@@ -1850,7 +1850,8 @@
 {
 	struct device_node *mesh = macio_get_of_node(mdev);
 	struct pci_dev* pdev = macio_get_pci_dev(mdev);
-	int tgt, *cfp, minper;
+	int tgt, minper;
+	const int *cfp;
 	struct mesh_state *ms;
 	struct Scsi_Host *mesh_host;
 	void *dma_cmd_space;
@@ -1939,7 +1940,7 @@
 	       	ms->tgts[tgt].current_req = NULL;
        	}
 
-	if ((cfp = (int *) get_property(mesh, "clock-frequency", NULL)))
+	if ((cfp = get_property(mesh, "clock-frequency", NULL)))
        		ms->clk_freq = *cfp;
 	else {
        		printk(KERN_INFO "mesh: assuming 50MHz clock frequency\n");
diff --git a/drivers/scsi/sata_svw.c b/drivers/scsi/sata_svw.c
index 7d08580..6b70c3c 100644
--- a/drivers/scsi/sata_svw.c
+++ b/drivers/scsi/sata_svw.c
@@ -268,7 +268,7 @@
 	/* Match it to a port node */
 	index = (ap == ap->host_set->ports[0]) ? 0 : 1;
 	for (np = np->child; np != NULL; np = np->sibling) {
-		u32 *reg = (u32 *)get_property(np, "reg", NULL);
+		const u32 *reg = get_property(np, "reg", NULL);
 		if (!reg)
 			continue;
 		if (index == *reg)
diff --git a/drivers/serial/pmac_zilog.c b/drivers/serial/pmac_zilog.c
index bfd2a22..a3b99ca 100644
--- a/drivers/serial/pmac_zilog.c
+++ b/drivers/serial/pmac_zilog.c
@@ -1400,8 +1400,8 @@
 static int __init pmz_init_port(struct uart_pmac_port *uap)
 {
 	struct device_node *np = uap->node;
-	char *conn;
-	struct slot_names_prop {
+	const char *conn;
+	const struct slot_names_prop {
 		int	count;
 		char	name[1];
 	} *slots;
@@ -1458,7 +1458,7 @@
 		uap->flags |= PMACZILOG_FLAG_IS_IRDA;
 	uap->port_type = PMAC_SCC_ASYNC;
 	/* 1999 Powerbook G3 has slot-names property instead */
-	slots = (struct slot_names_prop *)get_property(np, "slot-names", &len);
+	slots = get_property(np, "slot-names", &len);
 	if (slots && slots->count > 0) {
 		if (strcmp(slots->name, "IrDA") == 0)
 			uap->flags |= PMACZILOG_FLAG_IS_IRDA;
@@ -1470,7 +1470,8 @@
 	if (ZS_IS_INTMODEM(uap)) {
 		struct device_node* i2c_modem = find_devices("i2c-modem");
 		if (i2c_modem) {
-			char* mid = get_property(i2c_modem, "modem-id", NULL);
+			const char* mid =
+				get_property(i2c_modem, "modem-id", NULL);
 			if (mid) switch(*mid) {
 			case 0x04 :
 			case 0x05 :
diff --git a/drivers/video/S3triofb.c b/drivers/video/S3triofb.c
index afd146f..397005e 100644
--- a/drivers/video/S3triofb.c
+++ b/drivers/video/S3triofb.c
@@ -349,30 +349,30 @@
     s3trio_name[sizeof(s3trio_name)-1] = '\0';
     strcpy(fb_fix.id, s3trio_name);
 
-    if((pp = (int *)get_property(dp, "vendor-id", &len)) != NULL
+    if((pp = get_property(dp, "vendor-id", &len)) != NULL
 	&& *pp!=PCI_VENDOR_ID_S3) {
 	printk("%s: can't find S3 Trio board\n", dp->full_name);
 	return;
     }
 
-    if((pp = (int *)get_property(dp, "device-id", &len)) != NULL
+    if((pp = get_property(dp, "device-id", &len)) != NULL
 	&& *pp!=PCI_DEVICE_ID_S3_TRIO) {
 	printk("%s: can't find S3 Trio board\n", dp->full_name);
 	return;
     }
 
-    if ((pp = (int *)get_property(dp, "depth", &len)) != NULL
+    if ((pp = get_property(dp, "depth", &len)) != NULL
 	&& len == sizeof(int) && *pp != 8) {
 	printk("%s: can't use depth = %d\n", dp->full_name, *pp);
 	return;
     }
-    if ((pp = (int *)get_property(dp, "width", &len)) != NULL
+    if ((pp = get_property(dp, "width", &len)) != NULL
 	&& len == sizeof(int))
 	fb_var.xres = fb_var.xres_virtual = *pp;
-    if ((pp = (int *)get_property(dp, "height", &len)) != NULL
+    if ((pp = get_property(dp, "height", &len)) != NULL
 	&& len == sizeof(int))
 	fb_var.yres = fb_var.yres_virtual = *pp;
-    if ((pp = (int *)get_property(dp, "linebytes", &len)) != NULL
+    if ((pp = get_property(dp, "linebytes", &len)) != NULL
 	&& len == sizeof(int))
 	fb_fix.line_length = *pp;
     else
diff --git a/drivers/video/aty/radeon_base.c b/drivers/video/aty/radeon_base.c
index 8e3400d..0ed577e 100644
--- a/drivers/video/aty/radeon_base.c
+++ b/drivers/video/aty/radeon_base.c
@@ -413,11 +413,11 @@
 static int __devinit radeon_read_xtal_OF (struct radeonfb_info *rinfo)
 {
 	struct device_node *dp = rinfo->of_node;
-	u32 *val;
+	const u32 *val;
 
 	if (dp == NULL)
 		return -ENODEV;
-	val = (u32 *) get_property(dp, "ATY,RefCLK", NULL);
+	val = get_property(dp, "ATY,RefCLK", NULL);
 	if (!val || !*val) {
 		printk(KERN_WARNING "radeonfb: No ATY,RefCLK property !\n");
 		return -EINVAL;
@@ -425,11 +425,11 @@
 
 	rinfo->pll.ref_clk = (*val) / 10;
 
-	val = (u32 *) get_property(dp, "ATY,SCLK", NULL);
+	val = get_property(dp, "ATY,SCLK", NULL);
 	if (val && *val)
 		rinfo->pll.sclk = (*val) / 10;
 
-	val = (u32 *) get_property(dp, "ATY,MCLK", NULL);
+	val = get_property(dp, "ATY,MCLK", NULL);
 	if (val && *val)
 		rinfo->pll.mclk = (*val) / 10;
 
diff --git a/drivers/video/aty/radeon_monitor.c b/drivers/video/aty/radeon_monitor.c
index 98c05bc..ea531a6 100644
--- a/drivers/video/aty/radeon_monitor.c
+++ b/drivers/video/aty/radeon_monitor.c
@@ -64,13 +64,13 @@
 {
         static char *propnames[] = { "DFP,EDID", "LCD,EDID", "EDID",
 				     "EDID1", "EDID2",  NULL };
-	u8 *pedid = NULL;
-	u8 *pmt = NULL;
+	const u8 *pedid = NULL;
+	const u8 *pmt = NULL;
 	u8 *tmp;
         int i, mt = MT_NONE;  
 	
 	RTRACE("analyzing OF properties...\n");
-	pmt = (u8 *)get_property(dp, "display-type", NULL);
+	pmt = get_property(dp, "display-type", NULL);
 	if (!pmt)
 		return MT_NONE;
 	RTRACE("display-type: %s\n", pmt);
@@ -89,7 +89,7 @@
 	}
 
 	for (i = 0; propnames[i] != NULL; ++i) {
-		pedid = (u8 *)get_property(dp, propnames[i], NULL);
+		pedid = get_property(dp, propnames[i], NULL);
 		if (pedid != NULL)
 			break;
 	}
@@ -124,14 +124,14 @@
 		return MT_NONE;
 
 	if (rinfo->has_CRTC2) {
-		char *pname;
+		const char *pname;
 		int len, second = 0;
 
 		dp = dp->child;
 		do {
 			if (!dp)
 				return MT_NONE;
-			pname = (char *)get_property(dp, "name", NULL);
+			pname = get_property(dp, "name", NULL);
 			if (!pname)
 				return MT_NONE;
 			len = strlen(pname);
diff --git a/drivers/video/aty/radeon_pm.c b/drivers/video/aty/radeon_pm.c
index f31e606..e308ed2 100644
--- a/drivers/video/aty/radeon_pm.c
+++ b/drivers/video/aty/radeon_pm.c
@@ -1268,7 +1268,7 @@
 			  0x21320032, 0xa1320032, 0x21320032, 0xffffffff,
 			  0x31320032 };
 
-		u32 *mrtable = default_mrtable;
+		const u32 *mrtable = default_mrtable;
 		int i, mrtable_size = ARRAY_SIZE(default_mrtable);
 
 		mdelay(30);
@@ -1287,7 +1287,7 @@
 		if (rinfo->of_node != NULL) {
 			int size;
 
-			mrtable = (u32 *)get_property(rinfo->of_node, "ATY,MRT", &size);
+			mrtable = get_property(rinfo->of_node, "ATY,MRT", &size);
 			if (mrtable)
 				mrtable_size = size >> 2;
 			else
diff --git a/drivers/video/nvidia/nv_of.c b/drivers/video/nvidia/nv_of.c
index 8209106..d9af88c 100644
--- a/drivers/video/nvidia/nv_of.c
+++ b/drivers/video/nvidia/nv_of.c
@@ -32,7 +32,7 @@
 {
 	struct nvidia_par *par = info->par;
 	struct device_node *parent, *dp;
-	unsigned char *pedid = NULL;
+	const unsigned char *pedid = NULL;
 	static char *propnames[] = {
 		"DFP,EDID", "LCD,EDID", "EDID", "EDID1",
 		"EDID,B", "EDID,A", NULL };
@@ -42,20 +42,19 @@
 	if (parent == NULL)
 		return -1;
 	if (par->twoHeads) {
-		char *pname;
+		const char *pname;
 		int len;
 
 		for (dp = NULL;
 		     (dp = of_get_next_child(parent, dp)) != NULL;) {
-			pname = (char *)get_property(dp, "name", NULL);
+			pname = get_property(dp, "name", NULL);
 			if (!pname)
 				continue;
 			len = strlen(pname);
 			if ((pname[len-1] == 'A' && conn == 1) ||
 			    (pname[len-1] == 'B' && conn == 2)) {
 				for (i = 0; propnames[i] != NULL; ++i) {
-					pedid = (unsigned char *)
-						get_property(dp, propnames[i],
+					pedid = get_property(dp, propnames[i],
 							     NULL);
 					if (pedid != NULL)
 						break;
@@ -67,8 +66,7 @@
 	}
 	if (pedid == NULL) {
 		for (i = 0; propnames[i] != NULL; ++i) {
-			pedid = (unsigned char *)
-				get_property(parent, propnames[i], NULL);
+			pedid = get_property(parent, propnames[i], NULL);
 			if (pedid != NULL)
 				break;
 		}
diff --git a/drivers/video/offb.c b/drivers/video/offb.c
index 0013311..bad0e98 100644
--- a/drivers/video/offb.c
+++ b/drivers/video/offb.c
@@ -409,30 +409,30 @@
 	unsigned int flags, rsize, addr_prop = 0;
 	unsigned long max_size = 0;
 	u64 rstart, address = OF_BAD_ADDR;
-	u32 *pp, *addrp, *up;
+	const u32 *pp, *addrp, *up;
 	u64 asize;
 
-	pp = (u32 *)get_property(dp, "linux,bootx-depth", &len);
+	pp = get_property(dp, "linux,bootx-depth", &len);
 	if (pp == NULL)
-		pp = (u32 *)get_property(dp, "depth", &len);
+		pp = get_property(dp, "depth", &len);
 	if (pp && len == sizeof(u32))
 		depth = *pp;
 
-	pp = (u32 *)get_property(dp, "linux,bootx-width", &len);
+	pp = get_property(dp, "linux,bootx-width", &len);
 	if (pp == NULL)
-		pp = (u32 *)get_property(dp, "width", &len);
+		pp = get_property(dp, "width", &len);
 	if (pp && len == sizeof(u32))
 		width = *pp;
 
-	pp = (u32 *)get_property(dp, "linux,bootx-height", &len);
+	pp = get_property(dp, "linux,bootx-height", &len);
 	if (pp == NULL)
-		pp = (u32 *)get_property(dp, "height", &len);
+		pp = get_property(dp, "height", &len);
 	if (pp && len == sizeof(u32))
 		height = *pp;
 
-	pp = (u32 *)get_property(dp, "linux,bootx-linebytes", &len);
+	pp = get_property(dp, "linux,bootx-linebytes", &len);
 	if (pp == NULL)
-		pp = (u32 *)get_property(dp, "linebytes", &len);
+		pp = get_property(dp, "linebytes", &len);
 	if (pp && len == sizeof(u32))
 		pitch = *pp;
 	else
@@ -450,9 +450,9 @@
 	 * ranges and pick one that is both big enough and if possible encloses
 	 * the "address" property. If none match, we pick the biggest
 	 */
-	up = (u32 *)get_property(dp, "linux,bootx-addr", &len);
+	up = get_property(dp, "linux,bootx-addr", &len);
 	if (up == NULL)
-		up = (u32 *)get_property(dp, "address", &len);
+		up = get_property(dp, "address", &len);
 	if (up && len == sizeof(u32))
 		addr_prop = *up;
 
diff --git a/drivers/video/riva/fbdev.c b/drivers/video/riva/fbdev.c
index 76fc9d3..9823ba9 100644
--- a/drivers/video/riva/fbdev.c
+++ b/drivers/video/riva/fbdev.c
@@ -1831,14 +1831,13 @@
 	NVTRACE_ENTER();
 	dp = pci_device_to_OF_node(pd);
 	for (; dp != NULL; dp = dp->child) {
-		disptype = (unsigned char *)get_property(dp, "display-type", NULL);
+		disptype = get_property(dp, "display-type", NULL);
 		if (disptype == NULL)
 			continue;
 		if (strncmp(disptype, "LCD", 3) != 0)
 			continue;
 		for (i = 0; propnames[i] != NULL; ++i) {
-			pedid = (unsigned char *)
-				get_property(dp, propnames[i], NULL);
+			pedid = get_property(dp, propnames[i], NULL);
 			if (pedid != NULL) {
 				par->EDID = pedid;
 				NVTRACE("LCD found.\n");
diff --git a/include/asm-powerpc/cputable.h b/include/asm-powerpc/cputable.h
index 1ba3c99..748bc18 100644
--- a/include/asm-powerpc/cputable.h
+++ b/include/asm-powerpc/cputable.h
@@ -36,6 +36,7 @@
 struct cpu_spec;
 
 typedef	void (*cpu_setup_t)(unsigned long offset, struct cpu_spec* spec);
+typedef	void (*cpu_restore_t)(void);
 
 enum powerpc_oprofile_type {
 	PPC_OPROFILE_INVALID = 0,
@@ -65,6 +66,8 @@
 	 * BHT, SPD, etc... from head.S before branching to identify_machine
 	 */
 	cpu_setup_t	cpu_setup;
+	/* Used to restore cpu setup on secondary processors and at resume */
+	cpu_restore_t	cpu_restore;
 
 	/* Used by oprofile userspace to select the right counters */
 	char		*oprofile_cpu_type;
diff --git a/include/asm-powerpc/hvcall.h b/include/asm-powerpc/hvcall.h
index 0d3c4e8..63ce1ac 100644
--- a/include/asm-powerpc/hvcall.h
+++ b/include/asm-powerpc/hvcall.h
@@ -164,9 +164,15 @@
 #define H_VIO_SIGNAL		0x104
 #define H_SEND_CRQ		0x108
 #define H_COPY_RDMA		0x110
+#define H_REGISTER_LOGICAL_LAN	0x114
+#define H_FREE_LOGICAL_LAN	0x118
+#define H_ADD_LOGICAL_LAN_BUFFER 0x11C
+#define H_SEND_LOGICAL_LAN	0x120
+#define H_MULTICAST_CTRL	0x130
 #define H_SET_XDABR		0x134
 #define H_STUFF_TCE		0x138
 #define H_PUT_TCE_INDIRECT	0x13C
+#define H_CHANGE_LOGICAL_LAN_MAC 0x14C
 #define H_VTERM_PARTNER_INFO	0x150
 #define H_REGISTER_VTERM	0x154
 #define H_FREE_VTERM		0x158
@@ -196,102 +202,49 @@
 #define H_GET_HCA_INFO          0x1B8
 #define H_GET_PERF_COUNT        0x1BC
 #define H_MANAGE_TRACE          0x1C0
+#define H_FREE_LOGICAL_LAN_BUFFER 0x1D4
 #define H_QUERY_INT_STATE       0x1E4
 #define H_POLL_PENDING		0x1D8
 #define H_JOIN			0x298
 #define H_VASI_STATE            0x2A4
 #define H_ENABLE_CRQ		0x2B0
+#define MAX_HCALL_OPCODES	(H_ENABLE_CRQ >> 2)
 
 #ifndef __ASSEMBLY__
 
-/* plpar_hcall() -- Generic call interface using above opcodes
+/**
+ * plpar_hcall_norets: - Make a pseries hypervisor call with no return arguments
+ * @opcode: The hypervisor call to make.
  *
- * The actual call interface is a hypervisor call instruction with
- * the opcode in R3 and input args in R4-R7.
- * Status is returned in R3 with variable output values in R4-R11.
- * Only H_PTE_READ with H_READ_4 uses R6-R11 so we ignore it for now
- * and return only two out args which MUST ALWAYS BE PROVIDED.
- */
-long plpar_hcall(unsigned long opcode,
-		 unsigned long arg1,
-		 unsigned long arg2,
-		 unsigned long arg3,
-		 unsigned long arg4,
-		 unsigned long *out1,
-		 unsigned long *out2,
-		 unsigned long *out3);
-
-/* Same as plpar_hcall but for those opcodes that return no values
- * other than status.  Slightly more efficient.
+ * This call supports up to 7 arguments and only returns the status of
+ * the hcall. Use this version where possible, its slightly faster than
+ * the other plpar_hcalls.
  */
 long plpar_hcall_norets(unsigned long opcode, ...);
 
-/*
- * Special hcall interface for ibmveth support.
- * Takes 8 input parms. Returns a rc and stores the
- * R4 return value in *out1.
- */
-long plpar_hcall_8arg_2ret(unsigned long opcode,
-			   unsigned long arg1,
-			   unsigned long arg2,
-			   unsigned long arg3,
-			   unsigned long arg4,
-			   unsigned long arg5,
-			   unsigned long arg6,
-			   unsigned long arg7,
-			   unsigned long arg8,
-			   unsigned long *out1);
-
-/* plpar_hcall_4out()
+/**
+ * plpar_hcall: - Make a pseries hypervisor call
+ * @opcode: The hypervisor call to make.
+ * @retbuf: Buffer to store up to 4 return arguments in.
  *
- * same as plpar_hcall except with 4 output arguments.
+ * This call supports up to 6 arguments and 4 return arguments. Use
+ * PLPAR_HCALL_BUFSIZE to size the return argument buffer.
  *
+ * Used for all but the craziest of phyp interfaces (see plpar_hcall9)
  */
-long plpar_hcall_4out(unsigned long opcode,
-		      unsigned long arg1,
-		      unsigned long arg2,
-		      unsigned long arg3,
-		      unsigned long arg4,
-		      unsigned long *out1,
-		      unsigned long *out2,
-		      unsigned long *out3,
-		      unsigned long *out4);
+#define PLPAR_HCALL_BUFSIZE 4
+long plpar_hcall(unsigned long opcode, unsigned long *retbuf, ...);
 
-long plpar_hcall_7arg_7ret(unsigned long opcode,
-			   unsigned long arg1,
-			   unsigned long arg2,
-			   unsigned long arg3,
-			   unsigned long arg4,
-			   unsigned long arg5,
-			   unsigned long arg6,
-			   unsigned long arg7,
-			   unsigned long *out1,
-			   unsigned long *out2,
-			   unsigned long *out3,
-			   unsigned long *out4,
-			   unsigned long *out5,
-			   unsigned long *out6,
-			   unsigned long *out7);
-
-long plpar_hcall_9arg_9ret(unsigned long opcode,
-			   unsigned long arg1,
-			   unsigned long arg2,
-			   unsigned long arg3,
-			   unsigned long arg4,
-			   unsigned long arg5,
-			   unsigned long arg6,
-			   unsigned long arg7,
-			   unsigned long arg8,
-			   unsigned long arg9,
-			   unsigned long *out1,
-			   unsigned long *out2,
-			   unsigned long *out3,
-			   unsigned long *out4,
-			   unsigned long *out5,
-			   unsigned long *out6,
-			   unsigned long *out7,
-			   unsigned long *out8,
-			   unsigned long *out9);
+/**
+ * plpar_hcall9: - Make a pseries hypervisor call with up to 9 return arguments
+ * @opcode: The hypervisor call to make.
+ * @retbuf: Buffer to store up to 9 return arguments in.
+ *
+ * This call supports up to 9 arguments and 9 return arguments. Use
+ * PLPAR_HCALL9_BUFSIZE to size the return argument buffer.
+ */
+#define PLPAR_HCALL9_BUFSIZE 9
+long plpar_hcall9(unsigned long opcode, unsigned long *retbuf, ...);
 
 #endif /* __ASSEMBLY__ */
 #endif /* __KERNEL__ */
diff --git a/include/asm-powerpc/ibmebus.h b/include/asm-powerpc/ibmebus.h
index 7a42723..7ab195a 100644
--- a/include/asm-powerpc/ibmebus.h
+++ b/include/asm-powerpc/ibmebus.h
@@ -48,7 +48,7 @@
 extern struct bus_type ibmebus_bus_type;
 
 struct ibmebus_dev {	
-	char *name;
+	const char *name;
 	struct of_device ofdev;
 };
 
diff --git a/include/asm-powerpc/irq.h b/include/asm-powerpc/irq.h
index d903a62..4da41ef 100644
--- a/include/asm-powerpc/irq.h
+++ b/include/asm-powerpc/irq.h
@@ -137,7 +137,7 @@
 extern struct irq_map_entry irq_map[NR_IRQS];
 
 
-/***
+/**
  * irq_alloc_host - Allocate a new irq_host data structure
  * @node: device-tree node of the interrupt controller
  * @revmap_type: type of reverse mapping to use
@@ -159,14 +159,14 @@
 				       irq_hw_number_t inval_irq);
 
 
-/***
+/**
  * irq_find_host - Locates a host for a given device node
  * @node: device-tree node of the interrupt controller
  */
 extern struct irq_host *irq_find_host(struct device_node *node);
 
 
-/***
+/**
  * irq_set_default_host - Set a "default" host
  * @host: default host pointer
  *
@@ -178,7 +178,7 @@
 extern void irq_set_default_host(struct irq_host *host);
 
 
-/***
+/**
  * irq_set_virq_count - Set the maximum number of virt irqs
  * @count: number of linux virtual irqs, capped with NR_IRQS
  *
@@ -188,7 +188,7 @@
 extern void irq_set_virq_count(unsigned int count);
 
 
-/***
+/**
  * irq_create_mapping - Map a hardware interrupt into linux virq space
  * @host: host owning this hardware interrupt or NULL for default host
  * @hwirq: hardware irq number in that host space
@@ -202,13 +202,13 @@
 				       irq_hw_number_t hwirq);
 
 
-/***
+/**
  * irq_dispose_mapping - Unmap an interrupt
  * @virq: linux virq number of the interrupt to unmap
  */
 extern void irq_dispose_mapping(unsigned int virq);
 
-/***
+/**
  * irq_find_mapping - Find a linux virq from an hw irq number.
  * @host: host owning this hardware interrupt
  * @hwirq: hardware irq number in that host space
@@ -221,7 +221,7 @@
 				     irq_hw_number_t hwirq);
 
 
-/***
+/**
  * irq_radix_revmap - Find a linux virq from a hw irq number.
  * @host: host owning this hardware interrupt
  * @hwirq: hardware irq number in that host space
@@ -232,7 +232,7 @@
 extern unsigned int irq_radix_revmap(struct irq_host *host,
 				     irq_hw_number_t hwirq);
 
-/***
+/**
  * irq_linear_revmap - Find a linux virq from a hw irq number.
  * @host: host owning this hardware interrupt
  * @hwirq: hardware irq number in that host space
@@ -247,7 +247,7 @@
 
 
 
-/***
+/**
  * irq_alloc_virt - Allocate virtual irq numbers
  * @host: host owning these new virtual irqs
  * @count: number of consecutive numbers to allocate
@@ -261,7 +261,7 @@
 				   unsigned int count,
 				   unsigned int hint);
 
-/***
+/**
  * irq_free_virt - Free virtual irq numbers
  * @virq: virtual irq number of the first interrupt to free
  * @count: number of interrupts to free
@@ -300,7 +300,7 @@
 
 /* -- End OF helpers -- */
 
-/***
+/**
  * irq_early_init - Init irq remapping subsystem
  */
 extern void irq_early_init(void);
diff --git a/include/asm-powerpc/iseries/hv_call_xm.h b/include/asm-powerpc/iseries/hv_call_xm.h
index ca9202c..392ac3f 100644
--- a/include/asm-powerpc/iseries/hv_call_xm.h
+++ b/include/asm-powerpc/iseries/hv_call_xm.h
@@ -16,23 +16,6 @@
 #define HvCallXmSetTce			HvCallXm + 11
 #define HvCallXmSetTces			HvCallXm + 13
 
-/*
- * Structure passed to HvCallXm_getTceTableParms
- */
-struct iommu_table_cb {
-	unsigned long	itc_busno;	/* Bus number for this tce table */
-	unsigned long	itc_start;	/* Will be NULL for secondary */
-	unsigned long	itc_totalsize;	/* Size (in pages) of whole table */
-	unsigned long	itc_offset;	/* Index into real tce table of the
-					   start of our section */
-	unsigned long	itc_size;	/* Size (in pages) of our section */
-	unsigned long	itc_index;	/* Index of this tce table */
-	unsigned short	itc_maxtables;	/* Max num of tables for partition */
-	unsigned char	itc_virtbus;	/* Flag to indicate virtual bus */
-	unsigned char	itc_slotno;	/* IOA Tce Slot Index */
-	unsigned char	itc_rsvd[4];
-};
-
 static inline void HvCallXm_getTceTableParms(u64 cb)
 {
 	HvCall1(HvCallXmGetTceTableParms, cb);
diff --git a/include/asm-powerpc/iseries/hv_lp_config.h b/include/asm-powerpc/iseries/hv_lp_config.h
index df8b207..a006fd1 100644
--- a/include/asm-powerpc/iseries/hv_lp_config.h
+++ b/include/asm-powerpc/iseries/hv_lp_config.h
@@ -25,7 +25,6 @@
 
 #include <asm/iseries/hv_call_sc.h>
 #include <asm/iseries/hv_types.h>
-#include <asm/iseries/it_lp_naca.h>
 
 enum {
 	HvCallCfg_Cur	= 0,
@@ -44,16 +43,8 @@
 #define HvCallCfgGetHostingLpIndex			HvCallCfg + 32
 
 extern HvLpIndex HvLpConfig_getLpIndex_outline(void);
-
-static inline HvLpIndex	HvLpConfig_getLpIndex(void)
-{
-	return itLpNaca.xLpIndex;
-}
-
-static inline HvLpIndex	HvLpConfig_getPrimaryLpIndex(void)
-{
-	return itLpNaca.xPrimaryLpIndex;
-}
+extern HvLpIndex HvLpConfig_getLpIndex(void);
+extern HvLpIndex HvLpConfig_getPrimaryLpIndex(void);
 
 static inline u64 HvLpConfig_getMsChunks(void)
 {
diff --git a/include/asm-powerpc/iseries/it_lp_queue.h b/include/asm-powerpc/iseries/it_lp_queue.h
index 284c5a7..3f68147 100644
--- a/include/asm-powerpc/iseries/it_lp_queue.h
+++ b/include/asm-powerpc/iseries/it_lp_queue.h
@@ -27,8 +27,6 @@
 #include <asm/types.h>
 #include <asm/ptrace.h>
 
-struct HvLpEvent;
-
 #define IT_LP_MAX_QUEUES	8
 
 #define IT_LP_NOT_USED		0	/* Queue will not be used by PLIC */
diff --git a/include/asm-powerpc/iseries/vio.h b/include/asm-powerpc/iseries/vio.h
index 72a97d3..7a95d29 100644
--- a/include/asm-powerpc/iseries/vio.h
+++ b/include/asm-powerpc/iseries/vio.h
@@ -122,6 +122,34 @@
 	viorc_openRejected = 0x0301
 };
 
+/*
+ * The structure of the events that flow between us and OS/400 for chario
+ * events.  You can't mess with this unless the OS/400 side changes too.
+ */
+struct viocharlpevent {
+	struct HvLpEvent event;
+	u32 reserved;
+	u16 version;
+	u16 subtype_result_code;
+	u8 virtual_device;
+	u8 len;
+	u8 data[VIOCHAR_MAX_DATA];
+};
+
+#define VIOCHAR_WINDOW		10
+
+enum viocharsubtype {
+	viocharopen = 0x0001,
+	viocharclose = 0x0002,
+	viochardata = 0x0003,
+	viocharack = 0x0004,
+	viocharconfig = 0x0005
+};
+
+enum viochar_rc {
+	viochar_rc_ebusy = 1
+};
+
 struct device;
 
 extern struct device *iSeries_vio_dev;
diff --git a/include/asm-powerpc/lppaca.h b/include/asm-powerpc/lppaca.h
index 4dc514a..821ea0c 100644
--- a/include/asm-powerpc/lppaca.h
+++ b/include/asm-powerpc/lppaca.h
@@ -27,7 +27,9 @@
 //
 //
 //----------------------------------------------------------------------------
+#include <linux/cache.h>
 #include <asm/types.h>
+#include <asm/mmu.h>
 
 /* The Hypervisor barfs if the lppaca crosses a page boundary.  A 1k
  * alignment is sufficient to prevent this */
@@ -114,7 +116,7 @@
 
 
 //=============================================================================
-// CACHE_LINE_3 0x0100 - 0x007F: This line is shared with other processors
+// CACHE_LINE_3 0x0100 - 0x017F: This line is shared with other processors
 //=============================================================================
 	// This is the yield_count.  An "odd" value (low bit on) means that
 	// the processor is yielded (either because of an OS yield or a PLIC
@@ -126,12 +128,29 @@
 	u8	reserved6[124];		// Reserved                     x04-x7F
 
 //=============================================================================
-// CACHE_LINE_4-5 0x0100 - 0x01FF Contains PMC interrupt data
+// CACHE_LINE_4-5 0x0180 - 0x027F Contains PMC interrupt data
 //=============================================================================
 	u8	pmc_save_area[256];	// PMC interrupt Area           x00-xFF
 } __attribute__((__aligned__(0x400)));
 
 extern struct lppaca lppaca[];
 
+/*
+ * SLB shadow buffer structure as defined in the PAPR.  The save_area
+ * contains adjacent ESID and VSID pairs for each shadowed SLB.  The
+ * ESID is stored in the lower 64bits, then the VSID.
+ */
+struct slb_shadow {
+	u32	persistent;		// Number of persistent SLBs	x00-x03
+	u32	buffer_length;		// Total shadow buffer length	x04-x07
+	u64	reserved;		// Alignment			x08-x0f
+	struct	{
+		u64     esid;
+		u64	vsid;
+	} save_area[SLB_NUM_BOLTED];	//				x10-x40
+} ____cacheline_aligned;
+
+extern struct slb_shadow slb_shadow[];
+
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_LPPACA_H */
diff --git a/include/asm-powerpc/paca.h b/include/asm-powerpc/paca.h
index 2d4585f..7ffa251 100644
--- a/include/asm-powerpc/paca.h
+++ b/include/asm-powerpc/paca.h
@@ -23,6 +23,7 @@
 register struct paca_struct *local_paca asm("r13");
 #define get_paca()	local_paca
 #define get_lppaca()	(get_paca()->lppaca_ptr)
+#define get_slb_shadow()	(get_paca()->slb_shadow_ptr)
 
 struct task_struct;
 
@@ -98,6 +99,8 @@
 	u64 user_time;			/* accumulated usermode TB ticks */
 	u64 system_time;		/* accumulated system TB ticks */
 	u64 startpurr;			/* PURR/TB value snapshot */
+
+	struct slb_shadow *slb_shadow_ptr;
 };
 
 extern struct paca_struct paca[];
diff --git a/include/asm-powerpc/processor.h b/include/asm-powerpc/processor.h
index 22e54a2..6cb6fb1 100644
--- a/include/asm-powerpc/processor.h
+++ b/include/asm-powerpc/processor.h
@@ -32,6 +32,7 @@
 #define _CHRP_Motorola	0x04	/* motorola chrp, the cobra */
 #define _CHRP_IBM	0x05	/* IBM chrp, the longtrail and longtrail 2 */
 #define _CHRP_Pegasos	0x06	/* Genesi/bplan's Pegasos and Pegasos2 */
+#define _CHRP_briq	0x07	/* TotalImpact's briQ */
 
 #if defined(__KERNEL__) && defined(CONFIG_PPC32)
 
diff --git a/include/asm-powerpc/prom.h b/include/asm-powerpc/prom.h
index b095a28..7a457bd 100644
--- a/include/asm-powerpc/prom.h
+++ b/include/asm-powerpc/prom.h
@@ -72,8 +72,8 @@
 };
 
 struct device_node {
-	char	*name;
-	char	*type;
+	const char *name;
+	const char *type;
 	phandle	node;
 	phandle linux_phandle;
 	char	*full_name;
@@ -160,7 +160,7 @@
 extern void early_init_devtree(void *);
 extern int device_is_compatible(struct device_node *device, const char *);
 extern int machine_is_compatible(const char *compat);
-extern void *get_property(struct device_node *node, const char *name,
+extern const void *get_property(struct device_node *node, const char *name,
 		int *lenp);
 extern void print_properties(struct device_node *node);
 extern int prom_n_addr_cells(struct device_node* np);
@@ -198,7 +198,7 @@
 
 
 /* Helper to read a big number */
-static inline u64 of_read_number(u32 *cell, int size)
+static inline u64 of_read_number(const u32 *cell, int size)
 {
 	u64 r = 0;
 	while (size--)
@@ -209,15 +209,15 @@
 /* Translate an OF address block into a CPU physical address
  */
 #define OF_BAD_ADDR	((u64)-1)
-extern u64 of_translate_address(struct device_node *np, u32 *addr);
+extern u64 of_translate_address(struct device_node *np, const u32 *addr);
 
 /* Extract an address from a device, returns the region size and
  * the address space flags too. The PCI version uses a BAR number
  * instead of an absolute index
  */
-extern u32 *of_get_address(struct device_node *dev, int index,
+extern const u32 *of_get_address(struct device_node *dev, int index,
 			   u64 *size, unsigned int *flags);
-extern u32 *of_get_pci_address(struct device_node *dev, int bar_no,
+extern const u32 *of_get_pci_address(struct device_node *dev, int bar_no,
 			       u64 *size, unsigned int *flags);
 
 /* Get an address as a resource. Note that if your address is
@@ -234,7 +234,7 @@
 /* Parse the ibm,dma-window property of an OF node into the busno, phys and
  * size parameters.
  */
-void of_parse_dma_window(struct device_node *dn, unsigned char *dma_window_prop,
+void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
 		unsigned long *busno, unsigned long *phys, unsigned long *size);
 
 extern void kdump_move_device_tree(void);
@@ -259,7 +259,7 @@
 	u32 specifier[OF_MAX_IRQ_SPEC];	/* Specifier copy */
 };
 
-/***
+/**
  * of_irq_map_init - Initialize the irq remapper
  * @flags:	flags defining workarounds to enable
  *
@@ -272,7 +272,7 @@
 
 extern void of_irq_map_init(unsigned int flags);
 
-/***
+/**
  * of_irq_map_raw - Low level interrupt tree parsing
  * @parent:	the device interrupt parent
  * @intspec:	interrupt specifier ("interrupts" property of the device)
@@ -288,11 +288,11 @@
  *
  */
 
-extern int of_irq_map_raw(struct device_node *parent, u32 *intspec, u32 *addr,
-			  struct of_irq *out_irq);
+extern int of_irq_map_raw(struct device_node *parent, const u32 *intspec,
+			  const u32 *addr, struct of_irq *out_irq);
 
 
-/***
+/**
  * of_irq_map_one - Resolve an interrupt for a device
  * @device:	the device whose interrupt is to be resolved
  * @index:     	index of the interrupt to resolve
@@ -305,7 +305,7 @@
 extern int of_irq_map_one(struct device_node *device, int index,
 			  struct of_irq *out_irq);
 
-/***
+/**
  * of_irq_map_pci - Resolve the interrupt for a PCI device
  * @pdev:	the device whose interrupt is to be resolved
  * @out_irq:	structure of_irq filled by this function
diff --git a/include/asm-powerpc/rtas.h b/include/asm-powerpc/rtas.h
index 82a27e9..d34f9e1 100644
--- a/include/asm-powerpc/rtas.h
+++ b/include/asm-powerpc/rtas.h
@@ -230,5 +230,21 @@
 
 #define GLOBAL_INTERRUPT_QUEUE 9005
 
+/**
+ * rtas_config_addr - Format a busno, devfn and reg for RTAS.
+ * @busno: The bus number.
+ * @devfn: The device and function number as encoded by PCI_DEVFN().
+ * @reg: The register number.
+ *
+ * This function encodes the given busno, devfn and register number as
+ * required for RTAS calls that take a "config_addr" parameter.
+ * See PAPR requirement 7.3.4-1 for more info.
+ */
+static inline u32 rtas_config_addr(int busno, int devfn, int reg)
+{
+	return ((reg & 0xf00) << 20) | ((busno & 0xff) << 16) |
+			(devfn << 8) | (reg & 0xff);
+}
+
 #endif /* __KERNEL__ */
 #endif /* _POWERPC_RTAS_H */
diff --git a/include/asm-powerpc/smu.h b/include/asm-powerpc/smu.h
index 51e65fc..e49f644 100644
--- a/include/asm-powerpc/smu.h
+++ b/include/asm-powerpc/smu.h
@@ -517,7 +517,7 @@
  * This returns the pointer to an SMU "sdb" partition data or NULL
  * if not found. The data format is described below
  */
-extern struct smu_sdbp_header *smu_get_sdb_partition(int id,
+extern const struct smu_sdbp_header *smu_get_sdb_partition(int id,
 					unsigned int *size);
 
 /* Get "sdb" partition data from an SMU satellite */
diff --git a/include/asm-powerpc/spu.h b/include/asm-powerpc/spu.h
index c02d105..b42b53c 100644
--- a/include/asm-powerpc/spu.h
+++ b/include/asm-powerpc/spu.h
@@ -106,7 +106,7 @@
 struct spu_runqueue;
 
 struct spu {
-	char *name;
+	const char *name;
 	unsigned long local_store_phys;
 	u8 *local_store;
 	unsigned long problem_phys;
diff --git a/include/asm-powerpc/system.h b/include/asm-powerpc/system.h
index 4c9f522..4b41dea 100644
--- a/include/asm-powerpc/system.h
+++ b/include/asm-powerpc/system.h
@@ -177,11 +177,6 @@
 extern u32 booke_wdt_period;
 #endif /* CONFIG_BOOKE_WDT */
 
-/* EBCDIC -> ASCII conversion for [0-9A-Z] on iSeries */
-extern unsigned char e2a(unsigned char);
-extern unsigned char* strne2a(unsigned char *dest,
-		const unsigned char *src, size_t n);
-
 struct device_node;
 extern void note_scsi_host(struct device_node *, void *);
 
diff --git a/include/asm-powerpc/vio.h b/include/asm-powerpc/vio.h
index dc9bd101..4b51d42 100644
--- a/include/asm-powerpc/vio.h
+++ b/include/asm-powerpc/vio.h
@@ -46,8 +46,8 @@
  */
 struct vio_dev {
 	struct iommu_table *iommu_table;     /* vio_map_* uses this */
-	char *name;
-	char *type;
+	const char *name;
+	const char *type;
 	uint32_t unit_address;
 	unsigned int irq;
 	struct device dev;
diff --git a/scripts/checkstack.pl b/scripts/checkstack.pl
index b349246..f7844f6 100755
--- a/scripts/checkstack.pl
+++ b/scripts/checkstack.pl
@@ -62,6 +62,8 @@
 	} elsif ($arch eq 'ppc64') {
 		#XXX
 		$re = qr/.*stdu.*r1,-($x{1,8})\(r1\)/o;
+	} elsif ($arch eq 'powerpc') {
+		$re = qr/.*st[dw]u.*r1,-($x{1,8})\(r1\)/o;
 	} elsif ($arch =~ /^s390x?$/) {
 		#   11160:       a7 fb ff 60             aghi   %r15,-160
 		$re = qr/.*ag?hi.*\%r15,-(([0-9]{2}|[3-9])[0-9]{2})/o;
diff --git a/sound/aoa/core/snd-aoa-gpio-feature.c b/sound/aoa/core/snd-aoa-gpio-feature.c
index f69d333..7c26089 100644
--- a/sound/aoa/core/snd-aoa-gpio-feature.c
+++ b/sound/aoa/core/snd-aoa-gpio-feature.c
@@ -56,7 +56,7 @@
 {
 	struct device_node *np, *gpio;
 	u32 *reg;
-	char *audio_gpio;
+	const char *audio_gpio;
 
 	*gpioptr = -1;
 
diff --git a/sound/oss/dmasound/dmasound_awacs.c b/sound/oss/dmasound/dmasound_awacs.c
index 4359903..9ae659f 100644
--- a/sound/oss/dmasound/dmasound_awacs.c
+++ b/sound/oss/dmasound/dmasound_awacs.c
@@ -347,8 +347,8 @@
 setup_audio_gpio(const char *name, const char* compatible, int *gpio_addr, int* gpio_pol)
 {
 	struct device_node *np;
-	u32* pp;
-	
+	const u32* pp;
+
 	np = find_devices("gpio");
 	if (!np)
 		return -ENODEV;
@@ -356,7 +356,8 @@
 	np = np->child;
 	while(np != 0) {
 		if (name) {
-			char *property = get_property(np,"audio-gpio",NULL);
+			const char *property =
+				get_property(np,"audio-gpio",NULL);
 			if (property != 0 && strcmp(property,name) == 0)
 				break;
 		} else if (compatible && device_is_compatible(np, compatible))
@@ -365,11 +366,11 @@
 	}
 	if (!np)
 		return -ENODEV;
-	pp = (u32 *)get_property(np, "AAPL,address", NULL);
+	pp = get_property(np, "AAPL,address", NULL);
 	if (!pp)
 		return -ENODEV;
 	*gpio_addr = (*pp) & 0x0000ffff;
-	pp = (u32 *)get_property(np, "audio-gpio-active-state", NULL);
+	pp = get_property(np, "audio-gpio-active-state", NULL);
 	if (pp)
 		*gpio_pol = *pp;
 	else
diff --git a/sound/ppc/tumbler.c b/sound/ppc/tumbler.c
index 84f6b19..6ae2d5b 100644
--- a/sound/ppc/tumbler.c
+++ b/sound/ppc/tumbler.c
@@ -1035,7 +1035,7 @@
 		return NULL;
   
 	for (np = np->child; np; np = np->sibling) {
-		char *property = get_property(np, "audio-gpio", NULL);
+		const char *property = get_property(np, "audio-gpio", NULL);
 		if (property && strcmp(property, name) == 0)
 			return np;
 	}  
@@ -1062,7 +1062,8 @@
 				struct pmac_gpio *gp, int is_compatible)
 {
 	struct device_node *node;
-	u32 *base, addr;
+	const u32 *base;
+	u32 addr;
 
 	if (is_compatible)
 		node = find_compatible_audio_device(device);
@@ -1074,9 +1075,9 @@
 		return -ENODEV;
 	}
 
-	base = (u32 *)get_property(node, "AAPL,address", NULL);
+	base = get_property(node, "AAPL,address", NULL);
 	if (! base) {
-		base = (u32 *)get_property(node, "reg", NULL);
+		base = get_property(node, "reg", NULL);
 		if (!base) {
 			DBG("(E) cannot find address for device %s !\n", device);
 			snd_printd("cannot find address for device %s\n", device);
@@ -1090,13 +1091,13 @@
 
 	gp->addr = addr & 0x0000ffff;
 	/* Try to find the active state, default to 0 ! */
-	base = (u32 *)get_property(node, "audio-gpio-active-state", NULL);
+	base = get_property(node, "audio-gpio-active-state", NULL);
 	if (base) {
 		gp->active_state = *base;
 		gp->active_val = (*base) ? 0x5 : 0x4;
 		gp->inactive_val = (*base) ? 0x4 : 0x5;
 	} else {
-		u32 *prop = NULL;
+		const u32 *prop = NULL;
 		gp->active_state = 0;
 		gp->active_val = 0x4;
 		gp->inactive_val = 0x5;
@@ -1105,7 +1106,7 @@
 		 * as we don't yet have an interpreter for these things
 		 */
 		if (platform)
-			prop = (u32 *)get_property(node, platform, NULL);
+			prop = get_property(node, platform, NULL);
 		if (prop) {
 			if (prop[3] == 0x9 && prop[4] == 0x9) {
 				gp->active_val = 0xd;