diff options
Diffstat (limited to 'arch/powerpc/cpu/mpc85xx/release.S')
| -rw-r--r-- | arch/powerpc/cpu/mpc85xx/release.S | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/release.S b/arch/powerpc/cpu/mpc85xx/release.S index 1555a9ba67..043d0ff773 100644 --- a/arch/powerpc/cpu/mpc85xx/release.S +++ b/arch/powerpc/cpu/mpc85xx/release.S @@ -74,6 +74,33 @@ __secondary_start_page: mtspr 977,r3 #endif +#ifdef CONFIG_SYS_FSL_ERRATUM_A004510 + mfspr r3,SPRN_SVR + rlwinm r3,r3,0,0xff + li r4,CONFIG_SYS_FSL_ERRATUM_A004510_SVR_REV + cmpw r3,r4 + beq 1f + +#ifdef CONFIG_SYS_FSL_ERRATUM_A004510_SVR_REV2 + li r4,CONFIG_SYS_FSL_ERRATUM_A004510_SVR_REV2 + cmpw r3,r4 + beq 1f +#endif + + /* Not a supported revision affected by erratum */ + b 2f + +1: /* Erratum says set bits 55:60 to 001001 */ + msync + isync + mfspr r3,976 + li r4,0x48 + rlwimi r3,r4,0,0x1f8 + mtspr 976,r3 + isync +2: +#endif + /* Enable branch prediction */ lis r3,BUCSR_ENABLE@h ori r3,r3,BUCSR_ENABLE@l |
