aboutsummaryrefslogtreecommitdiff
path: root/arch/powerpc/kernel/head_fsl_booke.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/kernel/head_fsl_booke.S')
-rw-r--r--arch/powerpc/kernel/head_fsl_booke.S46
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 0f59863c3ad..6f62a737f60 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