diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/lib/cache-cp15.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/arm/lib/cache-cp15.c b/arch/arm/lib/cache-cp15.c index 3aabda1..70e94f0 100644 --- a/arch/arm/lib/cache-cp15.c +++ b/arch/arm/lib/cache-cp15.c @@ -66,6 +66,7 @@ void mmu_set_region_dcache_behaviour(phys_addr_t start, size_t size, #else u32 *page_table = (u32 *)gd->arch.tlb_addr; #endif + unsigned long startpt, stoppt; unsigned long upto, end; end = ALIGN(start + size, MMU_SECTION_SIZE) >> MMU_SECTION_SHIFT; @@ -74,7 +75,18 @@ void mmu_set_region_dcache_behaviour(phys_addr_t start, size_t size, option); for (upto = start; upto < end; upto++) set_section_dcache(upto, option); - mmu_page_table_flush((u32)&page_table[start], (u32)&page_table[end]); + + /* + * Make sure range is cache line aligned + * Only CPU maintains page tables, hence it is safe to always + * flush complete cache lines... + */ + + startpt = (unsigned long)&page_table[start]; + startpt &= ~(CONFIG_SYS_CACHELINE_SIZE - 1); + stoppt = (unsigned long)&page_table[end]; + stoppt = ALIGN(stoppt, CONFIG_SYS_CACHELINE_SIZE); + mmu_page_table_flush(startpt, stoppt); } __weak void dram_bank_mmu_setup(int bank) |