diff options
Diffstat (limited to 'arch/powerpc/kernel/head_fsl_booke.S')
| -rw-r--r-- | arch/powerpc/kernel/head_fsl_booke.S | 46 |
1 files changed, 32 insertions, 14 deletions
diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S index 0f59863c3ade..6f62a737f607 100644 --- a/arch/powerpc/kernel/head_fsl_booke.S +++ b/arch/powerpc/kernel/head_fsl_booke.S @@ -895,15 +895,11 @@ _GLOBAL(__setup_e500mc_ivors) mtspr SPRN_IVOR36,r3 li r3,CriticalDoorbell@l mtspr SPRN_IVOR37,r3 + sync + blr - /* - * We only want to touch IVOR38-41 if we're running on hardware - * that supports category E.HV. The architectural way to determine - * this is MMUCFG[LPIDSIZE]. - */ - mfspr r3, SPRN_MMUCFG - andis. r3, r3, MMUCFG_LPIDSIZE@h - beq no_hv +/* setup ehv ivors for */ +_GLOBAL(__setup_ehv_ivors) li r3,GuestDoorbell@l mtspr SPRN_IVOR38,r3 li r3,CriticalGuestDoorbell@l @@ -912,14 +908,8 @@ _GLOBAL(__setup_e500mc_ivors) mtspr SPRN_IVOR40,r3 li r3,Ehvpriv@l mtspr SPRN_IVOR41,r3 -skip_hv_ivors: sync blr -no_hv: - lwz r3, CPU_SPEC_FEATURES(r5) - rlwinm r3, r3, 0, ~CPU_FTR_EMB_HV - stw r3, CPU_SPEC_FEATURES(r5) - b skip_hv_ivors #ifdef CONFIG_SPE /* @@ -1043,6 +1033,34 @@ _GLOBAL(flush_dcache_L1) blr +/* Flush L1 d-cache, invalidate and disable d-cache and i-cache */ +_GLOBAL(__flush_disable_L1) + mflr r10 + bl flush_dcache_L1 /* Flush L1 d-cache */ + mtlr r10 + + mfspr r4, SPRN_L1CSR0 /* Invalidate and disable d-cache */ + li r5, 2 + rlwimi r4, r5, 0, 3 + + msync + isync + mtspr SPRN_L1CSR0, r4 + isync + +1: mfspr r4, SPRN_L1CSR0 /* Wait for the invalidate to finish */ + andi. r4, r4, 2 + bne 1b + + mfspr r4, SPRN_L1CSR1 /* Invalidate and disable i-cache */ + li r5, 2 + rlwimi r4, r5, 0, 3 + + mtspr SPRN_L1CSR1, r4 + isync + + blr + #ifdef CONFIG_SMP /* When we get here, r24 needs to hold the CPU # */ .globl __secondary_start |