diff options
| author | Mathieu J. Poirier <mathieu.poirier@linaro.org> | 2012-07-31 08:59:32 +0000 |
|---|---|---|
| committer | John Rigby <john.rigby@linaro.org> | 2012-08-16 08:50:34 -0600 |
| commit | 629a896359226fbd90dcf32ee7d527eba2b15b8c (patch) | |
| tree | 32159a79a22babaef0980fff29d20b115feb7037 /arch/arm/cpu | |
| parent | da7b6ec4e8625e444e80065229fdfae2fc85bcbc (diff) | |
| download | u-boot-linaro-stable-629a896359226fbd90dcf32ee7d527eba2b15b8c.tar.gz | |
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>
Diffstat (limited to 'arch/arm/cpu')
| -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 c6fa8ef13..f01989fbf 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; } |