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Diffstat (limited to 'arch/arm/mm/proc-v7.S')
-rw-r--r--arch/arm/mm/proc-v7.S39
1 files changed, 21 insertions, 18 deletions
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index b49f9a4c82c8..34e424041927 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -12,7 +12,7 @@
#include <linux/linkage.h>
#include <asm/assembler.h>
#include <asm/asm-offsets.h>
-#include <asm/elf.h>
+#include <asm/hwcap.h>
#include <asm/pgtable-hwdef.h>
#include <asm/pgtable.h>
@@ -25,9 +25,11 @@
ENTRY(cpu_v7_proc_init)
mov pc, lr
+ENDPROC(cpu_v7_proc_init)
ENTRY(cpu_v7_proc_fin)
mov pc, lr
+ENDPROC(cpu_v7_proc_fin)
/*
* cpu_v7_reset(loc)
@@ -43,6 +45,7 @@ ENTRY(cpu_v7_proc_fin)
.align 5
ENTRY(cpu_v7_reset)
mov pc, r0
+ENDPROC(cpu_v7_reset)
/*
* cpu_v7_do_idle()
@@ -52,8 +55,9 @@ ENTRY(cpu_v7_reset)
* IRQs are already disabled.
*/
ENTRY(cpu_v7_do_idle)
- .long 0xe320f003 @ ARM V7 WFI instruction
+ wfi
mov pc, lr
+ENDPROC(cpu_v7_do_idle)
ENTRY(cpu_v7_dcache_clean_area)
#ifndef TLB_CAN_READ_FROM_L1_CACHE
@@ -65,6 +69,7 @@ ENTRY(cpu_v7_dcache_clean_area)
dsb
#endif
mov pc, lr
+ENDPROC(cpu_v7_dcache_clean_area)
/*
* cpu_v7_switch_mm(pgd_phys, tsk)
@@ -89,6 +94,7 @@ ENTRY(cpu_v7_switch_mm)
isb
#endif
mov pc, lr
+ENDPROC(cpu_v7_switch_mm)
/*
* cpu_v7_set_pte_ext(ptep, pte)
@@ -99,26 +105,19 @@ ENTRY(cpu_v7_switch_mm)
* (hardware version is stored at -1024 bytes)
* - pte - PTE value to store
* - ext - value for extended PTE bits
- *
- * Permissions:
- * YUWD APX AP1 AP0 SVC User
- * 0xxx 0 0 0 no acc no acc
- * 100x 1 0 1 r/o no acc
- * 10x0 1 0 1 r/o no acc
- * 1011 0 0 1 r/w no acc
- * 110x 0 1 0 r/w r/o
- * 11x0 0 1 0 r/w r/o
- * 1111 0 1 1 r/w r/w
*/
ENTRY(cpu_v7_set_pte_ext)
#ifdef CONFIG_MMU
str r1, [r0], #-2048 @ linux version
bic r3, r1, #0x000003f0
- bic r3, r3, #0x00000003
+ bic r3, r3, #PTE_TYPE_MASK
orr r3, r3, r2
orr r3, r3, #PTE_EXT_AP0 | 2
+ tst r2, #1 << 4
+ orrne r3, r3, #PTE_EXT_TEX(1)
+
tst r1, #L_PTE_WRITE
tstne r1, #L_PTE_DIRTY
orreq r3, r3, #PTE_EXT_APX
@@ -128,19 +127,18 @@ ENTRY(cpu_v7_set_pte_ext)
tstne r3, #PTE_EXT_APX
bicne r3, r3, #PTE_EXT_APX | PTE_EXT_AP0
- tst r1, #L_PTE_YOUNG
- biceq r3, r3, #PTE_EXT_APX | PTE_EXT_AP_MASK
-
tst r1, #L_PTE_EXEC
orreq r3, r3, #PTE_EXT_XN
- tst r1, #L_PTE_PRESENT
+ tst r1, #L_PTE_YOUNG
+ tstne r1, #L_PTE_PRESENT
moveq r3, #0
str r3, [r0]
mcr p15, 0, r0, c7, c10, 1 @ flush_pte
#endif
mov pc, lr
+ENDPROC(cpu_v7_set_pte_ext)
cpu_v7_name:
.ascii "ARMv7 Processor"
@@ -182,12 +180,17 @@ __v7_setup:
mov r10, #0x1f @ domains 0, 1 = manager
mcr p15, 0, r10, c3, c0, 0 @ load domain access register
#endif
+ ldr r5, =0x40e040e0
+ ldr r6, =0xff0aa1a8
+ mcr p15, 0, r5, c10, c2, 0 @ write PRRR
+ mcr p15, 0, r6, c10, c2, 1 @ write NMRR
adr r5, v7_crval
ldmia r5, {r5, r6}
mrc p15, 0, r0, c1, c0, 0 @ read control register
bic r0, r0, r5 @ clear bits them
orr r0, r0, r6 @ set them
mov pc, lr @ return to head.S:__ret
+ENDPROC(__v7_setup)
/*
* V X F I D LR
@@ -197,7 +200,7 @@ __v7_setup:
*/
.type v7_crval, #object
v7_crval:
- crval clear=0x0120c302, mmuset=0x00c0387d, ucset=0x00c0187c
+ crval clear=0x0120c302, mmuset=0x10c0387d, ucset=0x00c0187c
__v7_setup_stack:
.space 4 * 11 @ 11 registers