diff options
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/cache.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/include/asm/cache.h b/arch/arm/include/asm/cache.h index d0518be28c..eef6a5a8f2 100644 --- a/arch/arm/include/asm/cache.h +++ b/arch/arm/include/asm/cache.h @@ -42,4 +42,15 @@ static inline void invalidate_l2_cache(void) void l2_cache_enable(void); void l2_cache_disable(void); +/* + * The current upper bound for ARM L1 data cache line sizes is 64 bytes. We + * use that value for aligning DMA buffers unless the board config has specified + * an alternate cache line size. + */ +#ifdef CONFIG_SYS_CACHELINE_SIZE +#define ARCH_DMA_MINALIGN CONFIG_SYS_CACHELINE_SIZE +#else +#define ARCH_DMA_MINALIGN 64 +#endif + #endif /* _ASM_CACHE_H */ |