diff options
| author |   Andrew Victor <andrew@sanpeople.com> | 2006-06-19 15:26:51 +0100 |
|---|---|---|
| committer |   Russell King <rmk+kernel@arm.linux.org.uk> | 2006-06-19 15:26:51 +0100 |
| commit | 10e8e1fb758eed5cfb0cae1b770f842624851e7b (patch) | |
| tree | 3276408aedaf5b1061c7f681ad5ea6dcf89925c2 | |
| parent | [ARM] 3580/1: AT91RM9200 Timer suspend/resume support (diff) | |
| download | linux-dev-10e8e1fb758eed5cfb0cae1b770f842624851e7b.tar.xz linux-dev-10e8e1fb758eed5cfb0cae1b770f842624851e7b.zip | |
[ARM] 3581/1: AT91RM9200 Internal SRAM
Patch from Andrew Victor
This patch maps the AT91RM9200's internal SRAM into the virtual memory
address space - just below the internal peripheral registers.
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | arch/arm/mach-at91rm9200/common.c | 6 | ||||
| -rw-r--r-- | include/asm-arm/arch-at91rm9200/hardware.h | 5 | ||||
| -rw-r--r-- | include/asm-arm/arch-at91rm9200/vmalloc.h | 2 |
3 files changed, 11 insertions, 2 deletions
diff --git a/arch/arm/mach-at91rm9200/common.c b/arch/arm/mach-at91rm9200/common.c index 3848fd2d5596..40d29a73b5c5 100644 --- a/arch/arm/mach-at91rm9200/common.c +++ b/arch/arm/mach-at91rm9200/common.c @@ -17,6 +17,7 @@ #include <asm/mach/map.h> #include <asm/arch/hardware.h> +#include "generic.h" static struct map_desc at91rm9200_io_desc[] __initdata = { { @@ -94,6 +95,11 @@ static struct map_desc at91rm9200_io_desc[] __initdata = { .pfn = __phys_to_pfn(AT91_BASE_TCB0), .length = SZ_16K, .type = MT_DEVICE, + }, { + .virtual = AT91_SRAM_VIRT_BASE, + .pfn = __phys_to_pfn(AT91_SRAM_BASE), + .length = AT91_SRAM_SIZE, + .type = MT_DEVICE, }, }; diff --git a/include/asm-arm/arch-at91rm9200/hardware.h b/include/asm-arm/arch-at91rm9200/hardware.h index 59e6f44d3a0d..87f40df57140 100644 --- a/include/asm-arm/arch-at91rm9200/hardware.h +++ b/include/asm-arm/arch-at91rm9200/hardware.h @@ -50,9 +50,12 @@ #define AT91_VA_BASE_TCB0 AT91_IO_P2V(AT91_BASE_TCB0) /* Internal SRAM */ -#define AT91_BASE_SRAM 0x00200000 /* Internal SRAM base address */ +#define AT91_SRAM_BASE 0x00200000 /* Internal SRAM base address */ #define AT91_SRAM_SIZE 0x00004000 /* Internal SRAM SIZE (16Kb) */ + /* Internal SRAM is mapped below the IO devices */ +#define AT91_SRAM_VIRT_BASE (AT91_IO_VIRT_BASE - AT91_SRAM_SIZE) + /* Serial ports */ #define AT91_NR_UART 5 /* 4 USART3's and one DBGU port */ diff --git a/include/asm-arm/arch-at91rm9200/vmalloc.h b/include/asm-arm/arch-at91rm9200/vmalloc.h index 34d9718feb90..4c367eb57f47 100644 --- a/include/asm-arm/arch-at91rm9200/vmalloc.h +++ b/include/asm-arm/arch-at91rm9200/vmalloc.h @@ -21,6 +21,6 @@ #ifndef __ASM_ARCH_VMALLOC_H #define __ASM_ARCH_VMALLOC_H -#define VMALLOC_END (AT91_IO_VIRT_BASE & PGDIR_MASK) +#define VMALLOC_END (AT91_SRAM_VIRT_BASE & PGDIR_MASK) #endif |