[ARM] 4311/1: ixp4xx: add KIXRP435 platform
Add Intel KIXRP435 Reference Platform based on IXP43x processor.
Fixed after review : access to cp15 removed in identification functions,
used access to global processor_id instead
Signed-off-by: Vladimir Barinov <vbarinov@ru.mvista.com>
Signed-off-by: Ruslan Sushko <rsushko@ru.mvista.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/configs/ixp4xx_defconfig b/arch/arm/configs/ixp4xx_defconfig
index fabf74c..db850a5 100644
--- a/arch/arm/configs/ixp4xx_defconfig
+++ b/arch/arm/configs/ixp4xx_defconfig
@@ -117,11 +117,13 @@
CONFIG_ARCH_IXDP425=y
CONFIG_MACH_IXDPG425=y
CONFIG_MACH_IXDP465=y
+CONFIG_MACH_KIXRP435=y
CONFIG_ARCH_IXCDP1100=y
CONFIG_ARCH_PRPMC1100=y
CONFIG_MACH_NAS100D=y
CONFIG_ARCH_IXDP4XX=y
CONFIG_CPU_IXP46X=y
+CONFIG_CPU_IXP43X=y
# CONFIG_MACH_GTWX5715 is not set
#
diff --git a/arch/arm/mach-ixp4xx/Kconfig b/arch/arm/mach-ixp4xx/Kconfig
index 8a339cd..dd0fb72 100644
--- a/arch/arm/mach-ixp4xx/Kconfig
+++ b/arch/arm/mach-ixp4xx/Kconfig
@@ -62,6 +62,12 @@
IXDP465 Development Platform (Also known as BMP).
For more information on this platform, see <file:Documentation/arm/IXP4xx>.
+config MACH_KIXRP435
+ bool "KIXRP435"
+ help
+ Say 'Y' here if you want your kernel to support Intel's
+ KIXRP435 Reference Platform.
+ For more information on this platform, see <file:Documentation/arm/IXP4xx>.
#
# IXCDP1100 is the exact same HW as IXDP425, but with a different machine
@@ -94,7 +100,7 @@
#
config ARCH_IXDP4XX
bool
- depends on ARCH_IXDP425 || MACH_IXDP465
+ depends on ARCH_IXDP425 || MACH_IXDP465 || MACH_KIXRP435
default y
#
@@ -105,6 +111,11 @@
depends on MACH_IXDP465
default y
+config CPU_IXP43X
+ bool
+ depends on MACH_KIXRP435
+ default y
+
config MACH_GTWX5715
bool "Gemtek WX5715 (Linksys WRV54G)"
depends on ARCH_IXP4XX
diff --git a/arch/arm/mach-ixp4xx/common-pci.c b/arch/arm/mach-ixp4xx/common-pci.c
index 9562177..bf04121 100644
--- a/arch/arm/mach-ixp4xx/common-pci.c
+++ b/arch/arm/mach-ixp4xx/common-pci.c
@@ -374,7 +374,7 @@
* Determine which PCI read method to use.
* Rev 0 IXP425 requires workaround.
*/
- if (!(processor_id & 0xf) && !cpu_is_ixp46x()) {
+ if (!(processor_id & 0xf) && cpu_is_ixp42x()) {
printk("PCI: IXP42x A0 silicon detected - "
"PCI Non-Prefetch Workaround Enabled\n");
ixp4xx_pci_read = ixp4xx_pci_read_errata;
@@ -480,7 +480,7 @@
res[0].flags = IORESOURCE_IO;
res[1].name = "PCI Memory Space";
- res[1].start = 0x48000000;
+ res[1].start = PCIBIOS_MIN_MEM;
#ifndef CONFIG_IXP4XX_INDIRECT_PCI
res[1].end = 0x4bffffff;
#else
diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c
index 39f2eeb..030dd75 100644
--- a/arch/arm/mach-ixp4xx/common.c
+++ b/arch/arm/mach-ixp4xx/common.c
@@ -192,7 +192,7 @@
static void ixp4xx_irq_mask(unsigned int irq)
{
- if (cpu_is_ixp46x() && irq >= 32)
+ if ((cpu_is_ixp46x() || cpu_is_ixp43x()) && irq >= 32)
*IXP4XX_ICMR2 &= ~(1 << (irq - 32));
else
*IXP4XX_ICMR &= ~(1 << irq);
@@ -215,7 +215,7 @@
if (!(ixp4xx_irq_edge & (1 << irq)))
ixp4xx_irq_ack(irq);
- if (cpu_is_ixp46x() && irq >= 32)
+ if ((cpu_is_ixp46x() || cpu_is_ixp43x()) && irq >= 32)
*IXP4XX_ICMR2 |= (1 << (irq - 32));
else
*IXP4XX_ICMR |= (1 << irq);
@@ -239,7 +239,7 @@
/* Disable all interrupt */
*IXP4XX_ICMR = 0x0;
- if (cpu_is_ixp46x()) {
+ if (cpu_is_ixp46x() || cpu_is_ixp43x()) {
/* Route upper 32 sources to IRQ instead of FIQ */
*IXP4XX_ICLR2 = 0x00;
diff --git a/arch/arm/mach-ixp4xx/ixdp425-pci.c b/arch/arm/mach-ixp4xx/ixdp425-pci.c
index 99c1dc8..4087960 100644
--- a/arch/arm/mach-ixp4xx/ixdp425-pci.c
+++ b/arch/arm/mach-ixp4xx/ixdp425-pci.c
@@ -66,7 +66,7 @@
int __init ixdp425_pci_init(void)
{
if (machine_is_ixdp425() || machine_is_ixcdp1100() ||
- machine_is_ixdp465())
+ machine_is_ixdp465() || machine_is_kixrp435())
pci_common_init(&ixdp425_pci);
return 0;
}
diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c
index 04b1d56..ec4f079 100644
--- a/arch/arm/mach-ixp4xx/ixdp425-setup.c
+++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c
@@ -115,6 +115,11 @@
ixdp425_flash_resource.end =
IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
+ if (cpu_is_ixp43x()) {
+ ixdp425_uart.num_resources = 1;
+ ixdp425_uart_data[1].flags = 0;
+ }
+
platform_add_devices(ixdp425_devices, ARRAY_SIZE(ixdp425_devices));
}
@@ -156,3 +161,16 @@
.init_machine = ixdp425_init,
MACHINE_END
#endif
+
+#ifdef CONFIG_MACH_KIXRP435
+MACHINE_START(KIXRP435, "Intel KIXRP435 Reference Platform")
+ /* Maintainer: MontaVista Software, Inc. */
+ .phys_io = IXP4XX_PERIPHERAL_BASE_PHYS,
+ .io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
+ .map_io = ixp4xx_map_io,
+ .init_irq = ixp4xx_init_irq,
+ .timer = &ixp4xx_timer,
+ .boot_params = 0x0100,
+ .init_machine = ixdp425_init,
+MACHINE_END
+#endif
diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S
index d29fe92..c156ddab 100644
--- a/arch/arm/mm/proc-xscale.S
+++ b/arch/arm/mm/proc-xscale.S
@@ -584,6 +584,11 @@
.asciz "XScale-IXP42x Family"
.size cpu_ixp42x_name, . - cpu_ixp42x_name
+ .type cpu_ixp43x_name, #object
+cpu_ixp43x_name:
+ .asciz "XScale-IXP43x Family"
+ .size cpu_ixp43x_name, . - cpu_ixp43x_name
+
.type cpu_ixp46x_name, #object
cpu_ixp46x_name:
.asciz "XScale-IXP46x Family"
@@ -843,6 +848,29 @@
.long xscale_cache_fns
.size __ixp42x_proc_info, . - __ixp42x_proc_info
+ .type __ixp43x_proc_info, #object
+__ixp43x_proc_info:
+ .long 0x69054040
+ .long 0xfffffff0
+ .long PMD_TYPE_SECT | \
+ PMD_SECT_BUFFERABLE | \
+ PMD_SECT_CACHEABLE | \
+ PMD_SECT_AP_WRITE | \
+ PMD_SECT_AP_READ
+ .long PMD_TYPE_SECT | \
+ PMD_SECT_AP_WRITE | \
+ PMD_SECT_AP_READ
+ b __xscale_setup
+ .long cpu_arch_name
+ .long cpu_elf_name
+ .long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
+ .long cpu_ixp43x_name
+ .long xscale_processor_functions
+ .long v4wbi_tlb_fns
+ .long xscale_mc_user_fns
+ .long xscale_cache_fns
+ .size __ixp43x_proc_info, . - __ixp43x_proc_info
+
.type __ixp46x_proc_info, #object
__ixp46x_proc_info:
.long 0x69054200
diff --git a/include/asm-arm/arch-ixp4xx/entry-macro.S b/include/asm-arm/arch-ixp4xx/entry-macro.S
index dadb568..f144a00 100644
--- a/include/asm-arm/arch-ixp4xx/entry-macro.S
+++ b/include/asm-arm/arch-ixp4xx/entry-macro.S
@@ -31,9 +31,9 @@
1001:
/*
- * IXP465 has an upper IRQ status register
+ * IXP465/IXP435 has an upper IRQ status register
*/
-#if defined(CONFIG_CPU_IXP46X)
+#if defined(CONFIG_CPU_IXP46X) || defined(CONFIG_CPU_IXP43X)
ldr \irqstat, =(IXP4XX_INTC_BASE_VIRT+IXP4XX_ICIP2_OFFSET)
ldr \irqstat, [\irqstat] @ get upper interrupts
mov \irqnr, #63
diff --git a/include/asm-arm/arch-ixp4xx/hardware.h b/include/asm-arm/arch-ixp4xx/hardware.h
index 88fd087..24bc588 100644
--- a/include/asm-arm/arch-ixp4xx/hardware.h
+++ b/include/asm-arm/arch-ixp4xx/hardware.h
@@ -17,8 +17,8 @@
#ifndef __ASM_ARCH_HARDWARE_H__
#define __ASM_ARCH_HARDWARE_H__
-#define PCIBIOS_MIN_IO 0x00001000
-#define PCIBIOS_MIN_MEM 0x48000000
+#define PCIBIOS_MIN_IO 0x00001000
+#define PCIBIOS_MIN_MEM (cpu_is_ixp43x() ? 0x40000000 : 0x48000000)
/*
* We override the standard dma-mask routines for bouncing.
diff --git a/include/asm-arm/arch-ixp4xx/io.h b/include/asm-arm/arch-ixp4xx/io.h
index a41ba22..b8b3cbc 100644
--- a/include/asm-arm/arch-ixp4xx/io.h
+++ b/include/asm-arm/arch-ixp4xx/io.h
@@ -61,7 +61,7 @@
static inline void __iomem *
__ixp4xx_ioremap(unsigned long addr, size_t size, unsigned long flags)
{
- if((addr < 0x48000000) || (addr > 0x4fffffff))
+ if((addr < PCIBIOS_MIN_MEM) || (addr > 0x4fffffff))
return __ioremap(addr, size, flags);
return (void *)addr;
diff --git a/include/asm-arm/arch-ixp4xx/irqs.h b/include/asm-arm/arch-ixp4xx/irqs.h
index e44a563..73a9aa5 100644
--- a/include/asm-arm/arch-ixp4xx/irqs.h
+++ b/include/asm-arm/arch-ixp4xx/irqs.h
@@ -62,10 +62,10 @@
/*
* Only first 32 sources are valid if running on IXP42x systems
*/
-#ifndef CONFIG_CPU_IXP46X
-#define NR_IRQS 32
-#else
+#if defined(CONFIG_CPU_IXP46X) || defined(CONFIG_CPU_IXP43X)
#define NR_IRQS 64
+#else
+#define NR_IRQS 32
#endif
#define XSCALE_PMU_IRQ (IRQ_IXP4XX_XSCALE_PMU)
diff --git a/include/asm-arm/arch-ixp4xx/ixp4xx-regs.h b/include/asm-arm/arch-ixp4xx/ixp4xx-regs.h
index ed35e5c..deb9899 100644
--- a/include/asm-arm/arch-ixp4xx/ixp4xx-regs.h
+++ b/include/asm-arm/arch-ixp4xx/ixp4xx-regs.h
@@ -607,15 +607,43 @@
#define DCMD_LENGTH 0x01fff /* length mask (max = 8K - 1) */
+/* Processor id value in CP15 Register 0 */
+#define IXP425_PROCESSOR_ID_VALUE 0x690541c0
+#define IXP435_PROCESSOR_ID_VALUE 0x69054040
+#define IXP465_PROCESSOR_ID_VALUE 0x69054200
+#define IXP4XX_PROCESSOR_ID_MASK 0xfffffff0
+
#ifndef __ASSEMBLY__
+static inline int cpu_is_ixp42x(void)
+{
+ extern unsigned int processor_id;
+
+ if ((processor_id & IXP4XX_PROCESSOR_ID_MASK) ==
+ IXP425_PROCESSOR_ID_VALUE )
+ return 1;
+
+ return 0;
+}
+
+static inline int cpu_is_ixp43x(void)
+{
+#ifdef CONFIG_CPU_IXP43X
+ extern unsigned int processor_id;
+
+ if ((processor_id & IXP4XX_PROCESSOR_ID_MASK) ==
+ IXP435_PROCESSOR_ID_VALUE )
+ return 1;
+#endif
+ return 0;
+}
+
static inline int cpu_is_ixp46x(void)
{
#ifdef CONFIG_CPU_IXP46X
- unsigned int processor_id;
+ extern unsigned int processor_id;
- asm("mrc p15, 0, %0, cr0, cr0, 0;" : "=r"(processor_id) :);
-
- if ((processor_id & 0xffffff00) == 0x69054200)
+ if ((processor_id & IXP4XX_PROCESSOR_ID_MASK) ==
+ IXP465_PROCESSOR_ID_VALUE )
return 1;
#endif
return 0;