diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kernel/head_44x.S | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/head_44x.S b/arch/powerpc/kernel/head_44x.S index c334f53453f7..b5061abbd2e0 100644 --- a/arch/powerpc/kernel/head_44x.S +++ b/arch/powerpc/kernel/head_44x.S @@ -1210,10 +1210,12 @@ clear_utlb_entry: /* We configure icbi to invalidate 128 bytes at a time since the * current 32-bit kernel code isn't too happy with icache != dcache - * block size + * block size. We also disable the BTAC as this can cause errors + * in some circumstances (see IBM Erratum 47). */ mfspr r3,SPRN_CCR0 oris r3,r3,0x0020 + ori r3,r3,0x0040 mtspr SPRN_CCR0,r3 isync |