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| author | Mathieu J. Poirier <mathieu.poirier@linaro.org> | 2012-07-31 08:59:32 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-09-01 14:58:20 +0200 |
| commit | 53e6f6a6340adba6ff2a970ff27ac741901a8776 (patch) | |
| tree | 76c2fc98f0f166e7892c006f35f458e4538f96e2 | |
| parent | 10ed93dcddeede4e305235367c402fb99e063ef3 (diff) | |
| download | u-boot-imx-53e6f6a6340adba6ff2a970ff27ac741901a8776.zip u-boot-imx-53e6f6a6340adba6ff2a970ff27ac741901a8776.tar.gz u-boot-imx-53e6f6a6340adba6ff2a970ff27ac741901a8776.tar.bz2 | |
armv7: Adding cpu specific cache managmenent
Some CPU (i.e u8500) need more cache management before launching
the Linux kernel.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: John Rigby <john.rigby@linaro.org>
| -rw-r--r-- | arch/arm/cpu/armv7/cpu.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/cpu.c b/arch/arm/cpu/armv7/cpu.c index c6fa8ef..f01989f 100644 --- a/arch/arm/cpu/armv7/cpu.c +++ b/arch/arm/cpu/armv7/cpu.c @@ -36,6 +36,7 @@ #include <asm/system.h> #include <asm/cache.h> #include <asm/armv7.h> +#include <linux/compiler.h> void save_boot_params_default(u32 r0, u32 r1, u32 r2, u32 r3) { @@ -44,6 +45,8 @@ void save_boot_params_default(u32 r0, u32 r1, u32 r2, u32 r3) void save_boot_params(u32 r0, u32 r1, u32 r2, u32 r3) __attribute__((weak, alias("save_boot_params_default"))); +void __weak cpu_cache_initialization(void){} + int cleanup_before_linux(void) { /* @@ -81,5 +84,10 @@ int cleanup_before_linux(void) */ invalidate_dcache_all(); + /* + * Some CPU need more cache attention before starting the kernel. + */ + cpu_cache_initialization(); + return 0; } |