diff --git a/arch/arm/mach-pxa/cm-x2xx.c b/arch/arm/mach-pxa/cm-x2xx.c
index 47e2420..b734d84 100644
--- a/arch/arm/mach-pxa/cm-x2xx.c
+++ b/arch/arm/mach-pxa/cm-x2xx.c
@@ -24,6 +24,7 @@
 #include <mach/pxa2xx-regs.h>
 #include <mach/audio.h>
 #include <mach/pxafb.h>
+#include <mach/smemc.h>
 
 #include <asm/hardware/it8152.h>
 
@@ -392,9 +393,9 @@
 	cmx2xx_pci_suspend();
 
 	/* save MSC registers */
-	sleep_save_msc[0] = MSC0;
-	sleep_save_msc[1] = MSC1;
-	sleep_save_msc[2] = MSC2;
+	sleep_save_msc[0] = __raw_readl(MSC0);
+	sleep_save_msc[1] = __raw_readl(MSC1);
+	sleep_save_msc[2] = __raw_readl(MSC2);
 
 	/* setup power saving mode registers */
 	PCFR = 0x0;
@@ -416,9 +417,9 @@
 	cmx2xx_pci_resume();
 
 	/* restore MSC registers */
-	MSC0 = sleep_save_msc[0];
-	MSC1 = sleep_save_msc[1];
-	MSC2 = sleep_save_msc[2];
+	__raw_writel(sleep_save_msc[0], MSC0);
+	__raw_writel(sleep_save_msc[1], MSC1);
+	__raw_writel(sleep_save_msc[2], MSC2);
 
 	return 0;
 }
diff --git a/arch/arm/mach-pxa/cpufreq-pxa2xx.c b/arch/arm/mach-pxa/cpufreq-pxa2xx.c
index 58093d9..6a7aeab 100644
--- a/arch/arm/mach-pxa/cpufreq-pxa2xx.c
+++ b/arch/arm/mach-pxa/cpufreq-pxa2xx.c
@@ -38,8 +38,10 @@
 #include <linux/cpufreq.h>
 #include <linux/err.h>
 #include <linux/regulator/consumer.h>
+#include <linux/io.h>
 
 #include <mach/pxa2xx-regs.h>
+#include <mach/smemc.h>
 
 #ifdef DEBUG
 static unsigned int freq_debug;
@@ -242,7 +244,7 @@
 
 static void init_sdram_rows(void)
 {
-	uint32_t mdcnfg = MDCNFG;
+	uint32_t mdcnfg = __raw_readl(MDCNFG);
 	unsigned int drac2 = 0, drac0 = 0;
 
 	if (mdcnfg & (MDCNFG_DE2 | MDCNFG_DE3))
@@ -331,8 +333,8 @@
 	 * we need to preset the smaller DRI before the change.	 If we're
 	 * speeding up we need to set the larger DRI value after the change.
 	 */
-	preset_mdrefr = postset_mdrefr = MDREFR;
-	if ((MDREFR & MDREFR_DRI_MASK) > mdrefr_dri(new_freq_mem)) {
+	preset_mdrefr = postset_mdrefr = __raw_readl(MDREFR);
+	if ((preset_mdrefr & MDREFR_DRI_MASK) > mdrefr_dri(new_freq_mem)) {
 		preset_mdrefr = (preset_mdrefr & ~MDREFR_DRI_MASK);
 		preset_mdrefr |= mdrefr_dri(new_freq_mem);
 	}
@@ -370,7 +372,7 @@
 3:		nop							\n\
 	  "
 		     : "=&r" (unused)
-		     : "r" (&MDREFR), "r" (cclkcfg),
+		     : "r" (MDREFR), "r" (cclkcfg),
 		       "r" (preset_mdrefr), "r" (postset_mdrefr)
 		     : "r4", "r5");
 	local_irq_restore(flags);
diff --git a/arch/arm/mach-pxa/csb726.c b/arch/arm/mach-pxa/csb726.c
index 225a2a1..a305424 100644
--- a/arch/arm/mach-pxa/csb726.c
+++ b/arch/arm/mach-pxa/csb726.c
@@ -27,6 +27,7 @@
 #include <mach/ohci.h>
 #include <mach/pxa2xx-regs.h>
 #include <mach/audio.h>
+#include <mach/smemc.h>
 
 #include "generic.h"
 #include "devices.h"
@@ -255,9 +256,9 @@
 static void __init csb726_init(void)
 {
 	pxa2xx_mfp_config(ARRAY_AND_SIZE(csb726_pin_config));
-/*	MSC1 = 0x7ffc3ffc; *//* LAN9215/EXP_CS */
-/*	MSC2 = 0x06697ff4; *//* none/SM501 */
-	MSC2 = (MSC2 & ~0xffff) | 0x7ff4; /* SM501 */
+/*	__raw_writel(0x7ffc3ffc, MSC1); *//* LAN9215/EXP_CS */
+/*	__raw_writel(0x06697ff4, MSC2); *//* none/SM501 */
+	__raw_writel((__raw_readl(MSC2) & ~0xffff) | 0x7ff4, MSC2); /* SM501 */
 
 	pxa_set_ffuart_info(NULL);
 	pxa_set_btuart_info(NULL);
diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c
index 6a5f379..d4ce8f9 100644
--- a/arch/arm/mach-pxa/generic.c
+++ b/arch/arm/mach-pxa/generic.c
@@ -28,6 +28,7 @@
 
 #include <mach/reset.h>
 #include <mach/gpio.h>
+#include <mach/smemc.h>
 
 #include "generic.h"
 
diff --git a/arch/arm/mach-pxa/h5000.c b/arch/arm/mach-pxa/h5000.c
index 0ef1635..657db46 100644
--- a/arch/arm/mach-pxa/h5000.c
+++ b/arch/arm/mach-pxa/h5000.c
@@ -32,6 +32,7 @@
 #include <mach/pxa25x.h>
 #include <mach/h5000.h>
 #include <mach/udc.h>
+#include <mach/smemc.h>
 
 #include "generic.h"
 
@@ -172,11 +173,11 @@
 
 static void fix_msc(void)
 {
-	MSC0 = 0x129c24f2;
-	MSC1 = 0x7ff424fa;
-	MSC2 = 0x7ff47ff4;
+	__raw_writel(0x129c24f2, MSC0);
+	__raw_writel(0x7ff424fa, MSC1);
+	__raw_writel(0x7ff47ff4, MSC2);
 
-	MDREFR |= 0x02080000;
+	__raw_writel(__raw_readl(MDREFR) | 0x02080000, MDREFR);
 }
 
 /*
diff --git a/arch/arm/mach-pxa/include/mach/pxa2xx-regs.h b/arch/arm/mach-pxa/include/mach/pxa2xx-regs.h
index dd0fc1c..ee6ced1 100644
--- a/arch/arm/mach-pxa/include/mach/pxa2xx-regs.h
+++ b/arch/arm/mach-pxa/include/mach/pxa2xx-regs.h
@@ -17,61 +17,6 @@
 #include <mach/hardware.h>
 
 /*
- * Memory controller
- */
-
-#define MDCNFG		__REG(0x48000000)  /* SDRAM Configuration Register 0 */
-#define MDREFR		__REG(0x48000004)  /* SDRAM Refresh Control Register */
-#define MSC0		__REG(0x48000008)  /* Static Memory Control Register 0 */
-#define MSC1		__REG(0x4800000C)  /* Static Memory Control Register 1 */
-#define MSC2		__REG(0x48000010)  /* Static Memory Control Register 2 */
-#define MECR		__REG(0x48000014)  /* Expansion Memory (PCMCIA/Compact Flash) Bus Configuration */
-#define SXLCR		__REG(0x48000018)  /* LCR value to be written to SDRAM-Timing Synchronous Flash */
-#define SXCNFG		__REG(0x4800001C)  /* Synchronous Static Memory Control Register */
-#define SXMRS		__REG(0x48000024)  /* MRS value to be written to Synchronous Flash or SMROM */
-#define MCMEM0		__REG(0x48000028)  /* Card interface Common Memory Space Socket 0 Timing */
-#define MCMEM1		__REG(0x4800002C)  /* Card interface Common Memory Space Socket 1 Timing */
-#define MCATT0		__REG(0x48000030)  /* Card interface Attribute Space Socket 0 Timing Configuration */
-#define MCATT1		__REG(0x48000034)  /* Card interface Attribute Space Socket 1 Timing Configuration */
-#define MCIO0		__REG(0x48000038)  /* Card interface I/O Space Socket 0 Timing Configuration */
-#define MCIO1		__REG(0x4800003C)  /* Card interface I/O Space Socket 1 Timing Configuration */
-#define MDMRS		__REG(0x48000040)  /* MRS value to be written to SDRAM */
-#define BOOT_DEF	__REG(0x48000044)  /* Read-Only Boot-Time Register. Contains BOOT_SEL and PKG_SEL */
-
-/*
- * More handy macros for PCMCIA
- *
- * Arg is socket number
- */
-#define MCMEM(s)	__REG2(0x48000028, (s)<<2 )  /* Card interface Common Memory Space Socket s Timing */
-#define MCATT(s)	__REG2(0x48000030, (s)<<2 )  /* Card interface Attribute Space Socket s Timing Configuration */
-#define MCIO(s)		__REG2(0x48000038, (s)<<2 )  /* Card interface I/O Space Socket s Timing Configuration */
-
-/* MECR register defines */
-#define MECR_NOS	(1 << 0)	/* Number Of Sockets: 0 -> 1 sock, 1 -> 2 sock */
-#define MECR_CIT	(1 << 1)	/* Card Is There: 0 -> no card, 1 -> card inserted */
-
-#define MDCNFG_DE0	(1 << 0)	/* SDRAM Bank 0 Enable */
-#define MDCNFG_DE1	(1 << 1)	/* SDRAM Bank 1 Enable */
-#define MDCNFG_DE2	(1 << 16)	/* SDRAM Bank 2 Enable */
-#define MDCNFG_DE3	(1 << 17)	/* SDRAM Bank 3 Enable */
-
-#define MDREFR_K0DB4	(1 << 29)	/* SDCLK0 Divide by 4 Control/Status */
-#define MDREFR_K2FREE	(1 << 25)	/* SDRAM Free-Running Control */
-#define MDREFR_K1FREE	(1 << 24)	/* SDRAM Free-Running Control */
-#define MDREFR_K0FREE	(1 << 23)	/* SDRAM Free-Running Control */
-#define MDREFR_SLFRSH	(1 << 22)	/* SDRAM Self-Refresh Control/Status */
-#define MDREFR_APD	(1 << 20)	/* SDRAM/SSRAM Auto-Power-Down Enable */
-#define MDREFR_K2DB2	(1 << 19)	/* SDCLK2 Divide by 2 Control/Status */
-#define MDREFR_K2RUN	(1 << 18)	/* SDCLK2 Run Control/Status */
-#define MDREFR_K1DB2	(1 << 17)	/* SDCLK1 Divide by 2 Control/Status */
-#define MDREFR_K1RUN	(1 << 16)	/* SDCLK1 Run Control/Status */
-#define MDREFR_E1PIN	(1 << 15)	/* SDCKE1 Level Control/Status */
-#define MDREFR_K0DB2	(1 << 14)	/* SDCLK0 Divide by 2 Control/Status */
-#define MDREFR_K0RUN	(1 << 13)	/* SDCLK0 Run Control/Status */
-#define MDREFR_E0PIN	(1 << 12)	/* SDCKE0 Level Control/Status */
-
-/*
  * Power Manager
  */
 
diff --git a/arch/arm/mach-pxa/include/mach/smemc.h b/arch/arm/mach-pxa/include/mach/smemc.h
new file mode 100644
index 0000000..654adc9
--- /dev/null
+++ b/arch/arm/mach-pxa/include/mach/smemc.h
@@ -0,0 +1,74 @@
+/*
+ * Static memory controller register definitions for PXA CPUs
+ *
+ * Copyright (C) 2010 Marek Vasut <marek.vasut@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __SMEMC_REGS_H
+#define __SMEMC_REGS_H
+
+#define PXA2XX_SMEMC_BASE	0x48000000
+#define PXA3XX_SMEMC_BASE	0x4a000000
+#define SMEMC_VIRT		0xf6000000
+
+#define MDCNFG		(SMEMC_VIRT + 0x00)  /* SDRAM Configuration Register 0 */
+#define MDREFR		(SMEMC_VIRT + 0x04)  /* SDRAM Refresh Control Register */
+#define MSC0		(SMEMC_VIRT + 0x08)  /* Static Memory Control Register 0 */
+#define MSC1		(SMEMC_VIRT + 0x0C)  /* Static Memory Control Register 1 */
+#define MSC2		(SMEMC_VIRT + 0x10)  /* Static Memory Control Register 2 */
+#define MECR		(SMEMC_VIRT + 0x14)  /* Expansion Memory (PCMCIA/Compact Flash) Bus Configuration */
+#define SXLCR		(SMEMC_VIRT + 0x18)  /* LCR value to be written to SDRAM-Timing Synchronous Flash */
+#define SXCNFG		(SMEMC_VIRT + 0x1C)  /* Synchronous Static Memory Control Register */
+#define SXMRS		(SMEMC_VIRT + 0x24)  /* MRS value to be written to Synchronous Flash or SMROM */
+#define MCMEM0		(SMEMC_VIRT + 0x28)  /* Card interface Common Memory Space Socket 0 Timing */
+#define MCMEM1		(SMEMC_VIRT + 0x2C)  /* Card interface Common Memory Space Socket 1 Timing */
+#define MCATT0		(SMEMC_VIRT + 0x30)  /* Card interface Attribute Space Socket 0 Timing Configuration */
+#define MCATT1		(SMEMC_VIRT + 0x34)  /* Card interface Attribute Space Socket 1 Timing Configuration */
+#define MCIO0		(SMEMC_VIRT + 0x38)  /* Card interface I/O Space Socket 0 Timing Configuration */
+#define MCIO1		(SMEMC_VIRT + 0x3C)  /* Card interface I/O Space Socket 1 Timing Configuration */
+#define MDMRS		(SMEMC_VIRT + 0x40)  /* MRS value to be written to SDRAM */
+#define BOOT_DEF	(SMEMC_VIRT + 0x44)  /* Read-Only Boot-Time Register. Contains BOOT_SEL and PKG_SEL */
+#define MEMCLKCFG	(SMEMC_VIRT + 0x68)  /* Clock Configuration */
+#define CSADRCFG0	(SMEMC_VIRT + 0x80)  /* Address Configuration Register for CS0 */
+#define CSADRCFG1	(SMEMC_VIRT + 0x84)  /* Address Configuration Register for CS1 */
+#define CSADRCFG2	(SMEMC_VIRT + 0x88)  /* Address Configuration Register for CS2 */
+#define CSADRCFG3	(SMEMC_VIRT + 0x8C)  /* Address Configuration Register for CS3 */
+
+/*
+ * More handy macros for PCMCIA
+ *
+ * Arg is socket number
+ */
+#define MCMEM(s)	(SMEMC_VIRT + 0x28 + ((s)<<2))  /* Card interface Common Memory Space Socket s Timing */
+#define MCATT(s)	(SMEMC_VIRT + 0x30 + ((s)<<2))  /* Card interface Attribute Space Socket s Timing Configuration */
+#define MCIO(s)		(SMEMC_VIRT + 0x38 + ((s)<<2))  /* Card interface I/O Space Socket s Timing Configuration */
+
+/* MECR register defines */
+#define MECR_NOS	(1 << 0)	/* Number Of Sockets: 0 -> 1 sock, 1 -> 2 sock */
+#define MECR_CIT	(1 << 1)	/* Card Is There: 0 -> no card, 1 -> card inserted */
+
+#define MDCNFG_DE0	(1 << 0)	/* SDRAM Bank 0 Enable */
+#define MDCNFG_DE1	(1 << 1)	/* SDRAM Bank 1 Enable */
+#define MDCNFG_DE2	(1 << 16)	/* SDRAM Bank 2 Enable */
+#define MDCNFG_DE3	(1 << 17)	/* SDRAM Bank 3 Enable */
+
+#define MDREFR_K0DB4	(1 << 29)	/* SDCLK0 Divide by 4 Control/Status */
+#define MDREFR_K2FREE	(1 << 25)	/* SDRAM Free-Running Control */
+#define MDREFR_K1FREE	(1 << 24)	/* SDRAM Free-Running Control */
+#define MDREFR_K0FREE	(1 << 23)	/* SDRAM Free-Running Control */
+#define MDREFR_SLFRSH	(1 << 22)	/* SDRAM Self-Refresh Control/Status */
+#define MDREFR_APD	(1 << 20)	/* SDRAM/SSRAM Auto-Power-Down Enable */
+#define MDREFR_K2DB2	(1 << 19)	/* SDCLK2 Divide by 2 Control/Status */
+#define MDREFR_K2RUN	(1 << 18)	/* SDCLK2 Run Control/Status */
+#define MDREFR_K1DB2	(1 << 17)	/* SDCLK1 Divide by 2 Control/Status */
+#define MDREFR_K1RUN	(1 << 16)	/* SDCLK1 Run Control/Status */
+#define MDREFR_E1PIN	(1 << 15)	/* SDCKE1 Level Control/Status */
+#define MDREFR_K0DB2	(1 << 14)	/* SDCLK0 Divide by 2 Control/Status */
+#define MDREFR_K0RUN	(1 << 13)	/* SDCLK0 Run Control/Status */
+#define MDREFR_E0PIN	(1 << 12)	/* SDCKE0 Level Control/Status */
+
+#endif
diff --git a/arch/arm/mach-pxa/lpd270.c b/arch/arm/mach-pxa/lpd270.c
index db615d5..8ab62a6 100644
--- a/arch/arm/mach-pxa/lpd270.c
+++ b/arch/arm/mach-pxa/lpd270.c
@@ -46,6 +46,7 @@
 #include <mach/mmc.h>
 #include <mach/irda.h>
 #include <mach/ohci.h>
+#include <mach/smemc.h>
 
 #include "generic.h"
 #include "devices.h"
@@ -463,7 +464,7 @@
 	pxa_set_btuart_info(NULL);
 	pxa_set_stuart_info(NULL);
 
-	lpd270_flash_data[0].width = (BOOT_DEF & 1) ? 2 : 4;
+	lpd270_flash_data[0].width = (__raw_readl(BOOT_DEF) & 1) ? 2 : 4;
 	lpd270_flash_data[1].width = 4;
 
 	/*
diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c
index 5b1cc1c..d337548 100644
--- a/arch/arm/mach-pxa/lubbock.c
+++ b/arch/arm/mach-pxa/lubbock.c
@@ -50,6 +50,7 @@
 #include <mach/pxafb.h>
 #include <mach/mmc.h>
 #include <mach/pm.h>
+#include <mach/smemc.h>
 
 #include "generic.h"
 #include "clock.h"
@@ -525,7 +526,7 @@
 	pxa_set_ac97_info(NULL);
 
 	lubbock_flash_data[0].width = lubbock_flash_data[1].width =
-		(BOOT_DEF & 1) ? 2 : 4;
+		(__raw_readl(BOOT_DEF) & 1) ? 2 : 4;
 	/* Compensate for the nROMBT switch which swaps the flash banks */
 	printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n",
 	       flashboot?"Flash":"ROM", flashboot);
diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
index 8bef7c8..740c035 100644
--- a/arch/arm/mach-pxa/mainstone.c
+++ b/arch/arm/mach-pxa/mainstone.c
@@ -51,6 +51,7 @@
 #include <mach/irda.h>
 #include <mach/ohci.h>
 #include <plat/pxa27x_keypad.h>
+#include <mach/smemc.h>
 
 #include "generic.h"
 #include "devices.h"
@@ -565,7 +566,7 @@
 	pxa_set_btuart_info(NULL);
 	pxa_set_stuart_info(NULL);
 
-	mst_flash_data[0].width = (BOOT_DEF & 1) ? 2 : 4;
+	mst_flash_data[0].width = (__raw_readl(BOOT_DEF) & 1) ? 2 : 4;
 	mst_flash_data[1].width = 4;
 
 	/* Compensate for SW7 which swaps the flash banks */
diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index 67200ce..23136b6 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -31,6 +31,7 @@
 #include <mach/reset.h>
 #include <mach/pm.h>
 #include <mach/dma.h>
+#include <mach/smemc.h>
 
 #include "generic.h"
 #include "devices.h"
@@ -323,8 +324,8 @@
 
 static struct map_desc pxa25x_io_desc[] __initdata = {
 	{	/* Mem Ctl */
-		.virtual	=  0xf6000000,
-		.pfn		= __phys_to_pfn(0x48000000),
+		.virtual	= SMEMC_VIRT,
+		.pfn		= __phys_to_pfn(PXA2XX_SMEMC_BASE),
 		.length		= 0x00200000,
 		.type		= MT_DEVICE
 	},
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index 71dbee4..839548d 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -17,6 +17,7 @@
 #include <linux/suspend.h>
 #include <linux/platform_device.h>
 #include <linux/sysdev.h>
+#include <linux/io.h>
 
 #include <asm/mach/map.h>
 #include <mach/hardware.h>
@@ -28,6 +29,8 @@
 #include <mach/ohci.h>
 #include <mach/pm.h>
 #include <mach/dma.h>
+#include <mach/smemc.h>
+
 #include <plat/i2c.h>
 
 #include "generic.h"
@@ -255,7 +258,7 @@
 
 void pxa27x_cpu_pm_save(unsigned long *sleep_save)
 {
-	SAVE(MDREFR);
+	sleep_save[SLEEP_SAVE_MDREFR] = __raw_readl(MDREFR);
 	SAVE(PCFR);
 
 	SAVE(CKEN);
@@ -264,7 +267,7 @@
 
 void pxa27x_cpu_pm_restore(unsigned long *sleep_save)
 {
-	RESTORE(MDREFR);
+	__raw_writel(sleep_save[SLEEP_SAVE_MDREFR], MDREFR);
 	RESTORE(PCFR);
 
 	PSSR = PSSR_RDH | PSSR_PH;
@@ -373,8 +376,8 @@
 
 static struct map_desc pxa27x_io_desc[] __initdata = {
 	{	/* Mem Ctl */
-		.virtual	=  0xf6000000,
-		.pfn		= __phys_to_pfn(0x48000000),
+		.virtual	= SMEMC_VIRT,
+		.pfn		= __phys_to_pfn(PXA2XX_SMEMC_BASE),
 		.length		= 0x00200000,
 		.type		= MT_DEVICE
 	}, {	/* IMem ctl */
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index 5480a94..dc658ad 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -31,6 +31,7 @@
 #include <mach/pm.h>
 #include <mach/dma.h>
 #include <mach/regs-intc.h>
+#include <mach/smemc.h>
 #include <plat/i2c.h>
 
 #include "generic.h"
@@ -583,8 +584,8 @@
 
 static struct map_desc pxa3xx_io_desc[] __initdata = {
 	{	/* Mem Ctl */
-		.virtual	=  0xf6000000,
-		.pfn		= __phys_to_pfn(0x4a000000),
+		.virtual	= SMEMC_VIRT,
+		.pfn		= __phys_to_pfn(PXA3XX_SMEMC_BASE),
 		.length		= 0x00200000,
 		.type		= MT_DEVICE
 	}
diff --git a/arch/arm/mach-pxa/sleep.S b/arch/arm/mach-pxa/sleep.S
index 52c30b0..2f5b08a 100644
--- a/arch/arm/mach-pxa/sleep.S
+++ b/arch/arm/mach-pxa/sleep.S
@@ -14,7 +14,7 @@
 #include <linux/linkage.h>
 #include <asm/assembler.h>
 #include <mach/hardware.h>
-
+#include <mach/smemc.h>
 #include <mach/pxa2xx-regs.h>
 
 #define MDREFR_KDIV	0x200a4000	// all banks
diff --git a/arch/arm/mach-pxa/smemc.c b/arch/arm/mach-pxa/smemc.c
index d6f6904..232b731 100644
--- a/arch/arm/mach-pxa/smemc.c
+++ b/arch/arm/mach-pxa/smemc.c
@@ -9,50 +9,37 @@
 #include <linux/sysdev.h>
 
 #include <mach/hardware.h>
-
-#define SMEMC_PHYS_BASE	(0x4A000000)
-#define SMEMC_PHYS_SIZE	(0x90)
-
-#define MSC0		(0x08)	/* Static Memory Controller Register 0 */
-#define MSC1		(0x0C)	/* Static Memory Controller Register 1 */
-#define SXCNFG		(0x1C)	/* Synchronous Static Memory Control Register */
-#define MEMCLKCFG	(0x68)	/* Clock Configuration */
-#define CSADRCFG0	(0x80)	/* Address Configuration Register for CS0 */
-#define CSADRCFG1	(0x84)	/* Address Configuration Register for CS1 */
-#define CSADRCFG2	(0x88)	/* Address Configuration Register for CS2 */
-#define CSADRCFG3	(0x8C)	/* Address Configuration Register for CS3 */
+#include <mach/smemc.h>
 
 #ifdef CONFIG_PM
-static void __iomem *smemc_mmio_base;
-
 static unsigned long msc[2];
 static unsigned long sxcnfg, memclkcfg;
 static unsigned long csadrcfg[4];
 
 static int pxa3xx_smemc_suspend(struct sys_device *dev, pm_message_t state)
 {
-	msc[0] = __raw_readl(smemc_mmio_base + MSC0);
-	msc[1] = __raw_readl(smemc_mmio_base + MSC1);
-	sxcnfg = __raw_readl(smemc_mmio_base + SXCNFG);
-	memclkcfg = __raw_readl(smemc_mmio_base + MEMCLKCFG);
-	csadrcfg[0] = __raw_readl(smemc_mmio_base + CSADRCFG0);
-	csadrcfg[1] = __raw_readl(smemc_mmio_base + CSADRCFG1);
-	csadrcfg[2] = __raw_readl(smemc_mmio_base + CSADRCFG2);
-	csadrcfg[3] = __raw_readl(smemc_mmio_base + CSADRCFG3);
+	msc[0] = __raw_readl(MSC0);
+	msc[1] = __raw_readl(MSC1);
+	sxcnfg = __raw_readl(SXCNFG);
+	memclkcfg = __raw_readl(MEMCLKCFG);
+	csadrcfg[0] = __raw_readl(CSADRCFG0);
+	csadrcfg[1] = __raw_readl(CSADRCFG1);
+	csadrcfg[2] = __raw_readl(CSADRCFG2);
+	csadrcfg[3] = __raw_readl(CSADRCFG3);
 
 	return 0;
 }
 
 static int pxa3xx_smemc_resume(struct sys_device *dev)
 {
-	__raw_writel(msc[0], smemc_mmio_base + MSC0);
-	__raw_writel(msc[1], smemc_mmio_base + MSC1);
-	__raw_writel(sxcnfg, smemc_mmio_base + SXCNFG);
-	__raw_writel(memclkcfg, smemc_mmio_base + MEMCLKCFG);
-	__raw_writel(csadrcfg[0], smemc_mmio_base + CSADRCFG0);
-	__raw_writel(csadrcfg[1], smemc_mmio_base + CSADRCFG1);
-	__raw_writel(csadrcfg[2], smemc_mmio_base + CSADRCFG2);
-	__raw_writel(csadrcfg[3], smemc_mmio_base + CSADRCFG3);
+	__raw_writel(msc[0], MSC0);
+	__raw_writel(msc[1], MSC1);
+	__raw_writel(sxcnfg, SXCNFG);
+	__raw_writel(memclkcfg, MEMCLKCFG);
+	__raw_writel(csadrcfg[0], CSADRCFG0);
+	__raw_writel(csadrcfg[1], CSADRCFG1);
+	__raw_writel(csadrcfg[2], CSADRCFG2);
+	__raw_writel(csadrcfg[3], CSADRCFG3);
 
 	return 0;
 }
@@ -73,10 +60,6 @@
 	int ret = 0;
 
 	if (cpu_is_pxa3xx()) {
-		smemc_mmio_base = ioremap(SMEMC_PHYS_BASE, SMEMC_PHYS_SIZE);
-		if (smemc_mmio_base == NULL)
-			return -ENODEV;
-
 		ret = sysdev_class_register(&smemc_sysclass);
 		if (ret)
 			return ret;
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index 38bcc2a..0499a69 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -45,6 +45,7 @@
 #include <mach/pxa2xx_spi.h>
 #include <mach/spitz.h>
 #include <mach/sharpsl_pm.h>
+#include <mach/smemc.h>
 
 #include <plat/i2c.h>
 
@@ -930,9 +931,10 @@
 
 static void spitz_restart(char mode, const char *cmd)
 {
+	uint32_t msc0 = __raw_readl(MSC0);
 	/* Bootloader magic for a reboot */
-	if ((MSC0 & 0xffff0000) == 0x7ff00000)
-		MSC0 = (MSC0 & 0xffff) | 0x7ee00000;
+	if ((msc0 & 0xffff0000) == 0x7ff00000)
+		__raw_writel((msc0 & 0xffff) | 0x7ee00000, MSC0);
 
 	spitz_poweroff();
 }
diff --git a/arch/arm/mach-pxa/stargate2.c b/arch/arm/mach-pxa/stargate2.c
index 19f5378..3498a14 100644
--- a/arch/arm/mach-pxa/stargate2.c
+++ b/arch/arm/mach-pxa/stargate2.c
@@ -48,6 +48,7 @@
 #include <mach/udc.h>
 #include <mach/pxa2xx_spi.h>
 #include <mach/pxa27x-udc.h>
+#include <mach/smemc.h>
 
 #include <linux/spi/spi.h>
 #include <linux/mfd/da903x.h>
@@ -976,7 +977,7 @@
 {
 	/* This is probably a board specific hack as this must be set
 	   prior to connecting the MFP stuff up. */
-	MECR &= ~MECR_NOS;
+	__raw_writel(__raw_readl(MECR) & ~MECR_NOS, MECR);
 
 	pxa2xx_mfp_config(ARRAY_AND_SIZE(stargate2_pin_config));
 
diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
index 3883385..57d61ee 100644
--- a/arch/arm/mach-pxa/tosa.c
+++ b/arch/arm/mach-pxa/tosa.c
@@ -46,6 +46,7 @@
 #include <mach/tosa_bt.h>
 #include <mach/pxa2xx_spi.h>
 #include <mach/audio.h>
+#include <mach/smemc.h>
 
 #include <asm/mach/arch.h>
 #include <mach/tosa.h>
@@ -893,9 +894,11 @@
 
 static void tosa_restart(char mode, const char *cmd)
 {
+	uint32_t msc0 = __raw_readl(MSC0);
+
 	/* Bootloader magic for a reboot */
-	if((MSC0 & 0xffff0000) == 0x7ff00000)
-		MSC0 = (MSC0 & 0xffff) | 0x7ee00000;
+	if((msc0 & 0xffff0000) == 0x7ff00000)
+		__raw_writel((msc0 & 0xffff) | 0x7ee00000, MSC0);
 
 	tosa_poweroff();
 }
diff --git a/arch/arm/mach-pxa/trizeps4.c b/arch/arm/mach-pxa/trizeps4.c
index ab3b933..43fc9ca 100644
--- a/arch/arm/mach-pxa/trizeps4.c
+++ b/arch/arm/mach-pxa/trizeps4.c
@@ -47,6 +47,7 @@
 #include <mach/mmc.h>
 #include <mach/irda.h>
 #include <mach/ohci.h>
+#include <mach/smemc.h>
 #include <plat/i2c.h>
 
 #include "generic.h"
@@ -542,7 +543,7 @@
 	pxa27x_map_io();
 	iotable_init(trizeps4_io_desc, ARRAY_SIZE(trizeps4_io_desc));
 
-	if ((MSC0 & 0x8) && (BOOT_DEF & 0x1)) {
+	if ((__raw_readl(MSC0) & 0x8) && (__raw_readl(BOOT_DEF) & 0x1)) {
 		/* if flash is 16 bit wide its a Trizeps4 WL */
 		__machine_arch_type = MACH_TYPE_TRIZEPS4WL;
 		trizeps4_flash_data[0].width = 2;
diff --git a/arch/arm/mach-pxa/xcep.c b/arch/arm/mach-pxa/xcep.c
index 99744f4..51c0281 100644
--- a/arch/arm/mach-pxa/xcep.c
+++ b/arch/arm/mach-pxa/xcep.c
@@ -31,6 +31,7 @@
 #include <mach/hardware.h>
 #include <mach/pxa2xx-regs.h>
 #include <mach/mfp-pxa25x.h>
+#include <mach/smemc.h>
 
 #include "generic.h"
 
@@ -172,9 +173,9 @@
 
 	/* See Intel XScale Developer's Guide for details */
 	/* Set RDF and RDN to appropriate values (chip select 3 (smc91x)) */
-	MSC1 = (MSC1 & 0xffff) | 0xD5540000;
+	__raw_writel((__raw_readl(MSC1) & 0xffff) | 0xD5540000, MSC1);
 	/* Set RDF and RDN to appropriate values (chip select 5 (fpga)) */
-	MSC2 = (MSC2 & 0xffff) | 0x72A00000;
+	__raw_writel((__raw_readl(MSC2) & 0xffff) | 0x72A00000, MSC2);
 
 	platform_add_devices(ARRAY_AND_SIZE(devices));
 	pxa_set_i2c_info(&xcep_i2c_platform_data);
diff --git a/arch/arm/mach-pxa/zeus.c b/arch/arm/mach-pxa/zeus.c
index 0909df2..c87f2b3 100644
--- a/arch/arm/mach-pxa/zeus.c
+++ b/arch/arm/mach-pxa/zeus.c
@@ -47,6 +47,7 @@
 #include <mach/audio.h>
 #include <mach/arcom-pcmcia.h>
 #include <mach/zeus.h>
+#include <mach/smemc.h>
 
 #include "generic.h"
 
@@ -823,13 +824,16 @@
 static void __init zeus_init(void)
 {
 	u16 dm9000_msc = DM9K_MSC_VALUE;
+	u32 msc0, msc1;
 
 	system_rev = __raw_readw(ZEUS_CPLD_VERSION);
 	pr_info("Zeus CPLD V%dI%d\n", (system_rev & 0xf0) >> 4, (system_rev & 0x0f));
 
 	/* Fix timings for dm9000s (CS1/CS2)*/
-	MSC0 = (MSC0 & 0xffff) | (dm9000_msc << 16);
-	MSC1 = (MSC1 & 0xffff0000) | dm9000_msc;
+	msc0 = __raw_readl(MSC0) & 0x0000ffff | (dm9000_msc << 16);
+	msc1 = __raw_readl(MSC1) & 0xffff0000 | dm9000_msc;
+	__raw_writel(msc0, MSC0);
+	__raw_writel(msc1, MSC1);
 
 	pm_power_off = zeus_power_off;
 	zeus_setup_apm();