diff options
| author | Greg Ungerer <gerg@snapgear.com> | 2007-06-04 05:46:26 (GMT) |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2007-07-12 10:11:25 (GMT) |
| commit | feb47225525a4194e7f6db5e745265793626ceb0 (patch) | |
| tree | 97d615b9a72a046db1fd1b9737075e600fba0502 /include/asm-arm | |
| parent | 70672224009bc3d4d6713337b3456bc7ab71d52b (diff) | |
| download | linux-feb47225525a4194e7f6db5e745265793626ceb0.tar.xz | |
[ARM] 4428/1: modify at91 includes to handle non-MMU at91x40 family
Modify the common at91 hardware support to deal with the non-MMU
at91x40 family. The base RAM (which is most likely not DRAM) is
set to the configured value. Virtual IO device mapping is set
to be 1 to 1 with the physical addresses.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm')
| -rw-r--r-- | include/asm-arm/arch-at91/hardware.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/include/asm-arm/arch-at91/hardware.h b/include/asm-arm/arch-at91/hardware.h index 46835e9..8f1cdd3 100644 --- a/include/asm-arm/arch-at91/hardware.h +++ b/include/asm-arm/arch-at91/hardware.h @@ -26,18 +26,29 @@ #include <asm/arch/at91sam9263.h> #elif defined(CONFIG_ARCH_AT91SAM9RL) #include <asm/arch/at91sam9rl.h> +#elif defined(CONFIG_ARCH_AT91X40) +#include <asm/arch/at91x40.h> #else #error "Unsupported AT91 processor" #endif +#ifdef CONFIG_MMU /* * Remap the peripherals from address 0xFFF78000 .. 0xFFFFFFFF * to 0xFEF78000 .. 0xFF000000. (544Kb) */ #define AT91_IO_PHYS_BASE 0xFFF78000 -#define AT91_IO_SIZE (0xFFFFFFFF - AT91_IO_PHYS_BASE + 1) #define AT91_IO_VIRT_BASE (0xFF000000 - AT91_IO_SIZE) +#else +/* + * Identity mapping for the non MMU case. + */ +#define AT91_IO_PHYS_BASE AT91_BASE_SYS +#define AT91_IO_VIRT_BASE AT91_IO_PHYS_BASE +#endif + +#define AT91_IO_SIZE (0xFFFFFFFF - AT91_IO_PHYS_BASE + 1) /* Convert a physical IO address to virtual IO address */ #define AT91_IO_P2V(x) ((x) - AT91_IO_PHYS_BASE + AT91_IO_VIRT_BASE) @@ -66,7 +77,11 @@ #define AT91_CHIPSELECT_7 0x80000000 /* SDRAM */ +#ifdef CONFIG_DRAM_BASE +#define AT91_SDRAM_BASE CONFIG_DRAM_BASE +#else #define AT91_SDRAM_BASE AT91_CHIPSELECT_1 +#endif /* Clocks */ #define AT91_SLOW_CLOCK 32768 /* slow clock */ |