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| author | Peng Fan <van.freenix@gmail.com> | 2013-04-17 20:54:05 +0800 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-04-17 16:38:48 +0200 |
| commit | 76de8a8e6b3fb2f1e4f66a477a2d18e38edd595d (patch) | |
| tree | f28382c49768050e8cf22017e08688e268b41cfa | |
| parent | bsp/mpc55xx: Typo (diff) | |
| download | rtems-76de8a8e6b3fb2f1e4f66a477a2d18e38edd595d.tar.bz2 | |
D-cache clean&&invalidate for Tiny6410
| -rw-r--r-- | c/src/lib/libcpu/arm/shared/include/arm-cp15.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/c/src/lib/libcpu/arm/shared/include/arm-cp15.h b/c/src/lib/libcpu/arm/shared/include/arm-cp15.h index 3edc83f733..017c0e3cd0 100644 --- a/c/src/lib/libcpu/arm/shared/include/arm-cp15.h +++ b/c/src/lib/libcpu/arm/shared/include/arm-cp15.h @@ -609,6 +609,27 @@ static inline void arm_cp15_data_cache_test_and_clean(void) ); } +/* In DDI0301H_arm1176jzfs_r0p7_trm + * 'MCR p15, 0, <Rd>, c7, c14, 0' means + * Clean and Invalidate Entire Data Cache + */ +static inline void arm_cp15_data_cache_clean_and_invalidate(void) +{ + ARM_SWITCH_REGISTERS; + + uint32_t sbz = 0; + + __asm__ volatile ( + ARM_SWITCH_TO_ARM + "mcr p15, 0, %[sbz], c7, c14, 0\n" + ARM_SWITCH_BACK + : ARM_SWITCH_OUTPUT + : [sbz] "r" (sbz) + : "memory" + ); + +} + static inline void arm_cp15_data_cache_clean_and_invalidate_line(const void *mva) { ARM_SWITCH_REGISTERS; |