diff options
Diffstat (limited to 'src/arch/ppc/init/crt0.S.lb')
| -rw-r--r-- | src/arch/ppc/init/crt0.S.lb | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/arch/ppc/init/crt0.S.lb b/src/arch/ppc/init/crt0.S.lb index 5c5b5f4716..738d4b4a67 100644 --- a/src/arch/ppc/init/crt0.S.lb +++ b/src/arch/ppc/init/crt0.S.lb @@ -33,6 +33,21 @@ system_reset: #if USE_DCACHE_RAM == 1 #define DCACHE_RAM_END (DCACHE_RAM_BASE + DCACHE_RAM_SIZE - 1) /* + * Initialize data cache blocks + * (assumes cache block size of 32 bytes) + * + * NOTE: This may need to be moved to FAMILY_INIT if + * dcbz is not supported on all CPU's + */ + lis r1, DCACHE_RAM_BASE@h + ori r1, r1, DCACHE_RAM_BASE@l + li r3, (DCACHE_RAM_SIZE / 32) + mtctr r3 +0: dcbz r0, r1 + addi r1, r1, 32 + bdnz 0b + + /* * Set up stack in cache. The SP must be 16-byte (4-word) aligned * for SYSV EABI or 8-byte (2-word) aligned for PPC EABI, so we make * it 16-byte aligned to cover both cases. Also we have to ensure that |