Merge branch 'pm' into devel-stable

7 files changed, 88 insertions, 126 deletions

diff --git a/arch/arm/mm/proc-arm920.S b/arch/arm/mm/proc-arm920.S
index 2e6849b41f6..88fb3d9e064 100644
--- a/arch/arm/mm/proc-arm920.S
+++ b/arch/arm/mm/proc-arm920.S
@@ -379,31 +379,26 @@ ENTRY(cpu_arm920_set_pte_ext)
 
 /* Suspend/resume support: taken from arch/arm/plat-s3c24xx/sleep.S */
 .globl	cpu_arm920_suspend_size
-.equ	cpu_arm920_suspend_size, 4 * 4
+.equ	cpu_arm920_suspend_size, 4 * 3
 #ifdef CONFIG_PM_SLEEP
 ENTRY(cpu_arm920_do_suspend)
-	stmfd	sp!, {r4 - r7, lr}
+	stmfd	sp!, {r4 - r6, lr}
 	mrc	p15, 0, r4, c13, c0, 0	@ PID
 	mrc	p15, 0, r5, c3, c0, 0	@ Domain ID
-	mrc	p15, 0, r6, c2, c0, 0	@ TTB address
-	mrc	p15, 0, r7, c1, c0, 0	@ Control register
-	stmia	r0, {r4 - r7}
-	ldmfd	sp!, {r4 - r7, pc}
+	mrc	p15, 0, r6, c1, c0, 0	@ Control register
+	stmia	r0, {r4 - r6}
+	ldmfd	sp!, {r4 - r6, pc}
 ENDPROC(cpu_arm920_do_suspend)
 
 ENTRY(cpu_arm920_do_resume)
 	mov	ip, #0
 	mcr	p15, 0, ip, c8, c7, 0	@ invalidate I+D TLBs
 	mcr	p15, 0, ip, c7, c7, 0	@ invalidate I+D caches
-	ldmia	r0, {r4 - r7}
+	ldmia	r0, {r4 - r6}
 	mcr	p15, 0, r4, c13, c0, 0	@ PID
 	mcr	p15, 0, r5, c3, c0, 0	@ Domain ID
-	mcr	p15, 0, r6, c2, c0, 0	@ TTB address
-	mov	r0, r7			@ control register
-	mov	r2, r6, lsr #14		@ get TTB0 base
-	mov	r2, r2, lsl #14
-	ldr	r3, =PMD_TYPE_SECT | PMD_SECT_BUFFERABLE | \
-		     PMD_SECT_CACHEABLE | PMD_BIT4 | PMD_SECT_AP_WRITE
+	mcr	p15, 0, r1, c2, c0, 0	@ TTB address
+	mov	r0, r6			@ control register
 	b	cpu_resume_mmu
 ENDPROC(cpu_arm920_do_resume)
 #endif
diff --git a/arch/arm/mm/proc-arm926.S b/arch/arm/mm/proc-arm926.S
index cd8f79c3a28..9f8fd91f918 100644
--- a/arch/arm/mm/proc-arm926.S
+++ b/arch/arm/mm/proc-arm926.S
@@ -394,31 +394,26 @@ ENTRY(cpu_arm926_set_pte_ext)
 
 /* Suspend/resume support: taken from arch/arm/plat-s3c24xx/sleep.S */
 .globl	cpu_arm926_suspend_size
-.equ	cpu_arm926_suspend_size, 4 * 4
+.equ	cpu_arm926_suspend_size, 4 * 3
 #ifdef CONFIG_PM_SLEEP
 ENTRY(cpu_arm926_do_suspend)
-	stmfd	sp!, {r4 - r7, lr}
+	stmfd	sp!, {r4 - r6, lr}
 	mrc	p15, 0, r4, c13, c0, 0	@ PID
 	mrc	p15, 0, r5, c3, c0, 0	@ Domain ID
-	mrc	p15, 0, r6, c2, c0, 0	@ TTB address
-	mrc	p15, 0, r7, c1, c0, 0	@ Control register
-	stmia	r0, {r4 - r7}
-	ldmfd	sp!, {r4 - r7, pc}
+	mrc	p15, 0, r6, c1, c0, 0	@ Control register
+	stmia	r0, {r4 - r6}
+	ldmfd	sp!, {r4 - r6, pc}
 ENDPROC(cpu_arm926_do_suspend)
 
 ENTRY(cpu_arm926_do_resume)
 	mov	ip, #0
 	mcr	p15, 0, ip, c8, c7, 0	@ invalidate I+D TLBs
 	mcr	p15, 0, ip, c7, c7, 0	@ invalidate I+D caches
-	ldmia	r0, {r4 - r7}
+	ldmia	r0, {r4 - r6}
 	mcr	p15, 0, r4, c13, c0, 0	@ PID
 	mcr	p15, 0, r5, c3, c0, 0	@ Domain ID
-	mcr	p15, 0, r6, c2, c0, 0	@ TTB address
-	mov	r0, r7			@ control register
-	mov	r2, r6, lsr #14		@ get TTB0 base
-	mov	r2, r2, lsl #14
-	ldr	r3, =PMD_TYPE_SECT | PMD_SECT_BUFFERABLE | \
-		     PMD_SECT_CACHEABLE | PMD_BIT4 | PMD_SECT_AP_WRITE
+	mcr	p15, 0, r1, c2, c0, 0	@ TTB address
+	mov	r0, r6			@ control register
 	b	cpu_resume_mmu
 ENDPROC(cpu_arm926_do_resume)
 #endif
diff --git a/arch/arm/mm/proc-sa1100.S b/arch/arm/mm/proc-sa1100.S
index 69e7f2ef738..7d91545d089 100644
--- a/arch/arm/mm/proc-sa1100.S
+++ b/arch/arm/mm/proc-sa1100.S
@@ -168,20 +168,19 @@ ENTRY(cpu_sa1100_set_pte_ext)
 	mov	pc, lr
 
 .globl	cpu_sa1100_suspend_size
-.equ	cpu_sa1100_suspend_size, 4*4
+.equ	cpu_sa1100_suspend_size, 4 * 3
 #ifdef CONFIG_PM_SLEEP
 ENTRY(cpu_sa1100_do_suspend)
-	stmfd	sp!, {r4 - r7, lr}
+	stmfd	sp!, {r4 - r6, lr}
 	mrc	p15, 0, r4, c3, c0, 0		@ domain ID
-	mrc	p15, 0, r5, c2, c0, 0		@ translation table base addr
-	mrc	p15, 0, r6, c13, c0, 0		@ PID
-	mrc	p15, 0, r7, c1, c0, 0		@ control reg
-	stmia	r0, {r4 - r7}			@ store cp regs
-	ldmfd	sp!, {r4 - r7, pc}
+	mrc	p15, 0, r5, c13, c0, 0		@ PID
+	mrc	p15, 0, r6, c1, c0, 0		@ control reg
+	stmia	r0, {r4 - r6}			@ store cp regs
+	ldmfd	sp!, {r4 - r6, pc}
 ENDPROC(cpu_sa1100_do_suspend)
 
 ENTRY(cpu_sa1100_do_resume)
-	ldmia	r0, {r4 - r7}			@ load cp regs
+	ldmia	r0, {r4 - r6}			@ load cp regs
 	mov	ip, #0
 	mcr	p15, 0, ip, c8, c7, 0		@ flush I+D TLBs
 	mcr	p15, 0, ip, c7, c7, 0		@ flush I&D cache
@@ -189,13 +188,9 @@ ENTRY(cpu_sa1100_do_resume)
 	mcr	p15, 0, ip, c9, c0, 5		@ allow user space to use RB
 
 	mcr	p15, 0, r4, c3, c0, 0		@ domain ID
-	mcr	p15, 0, r5, c2, c0, 0		@ translation table base addr
-	mcr	p15, 0, r6, c13, c0, 0		@ PID
-	mov	r0, r7				@ control register
-	mov	r2, r5, lsr #14			@ get TTB0 base
-	mov	r2, r2, lsl #14
-	ldr	r3, =PMD_TYPE_SECT | PMD_SECT_BUFFERABLE | \
-		     PMD_SECT_CACHEABLE | PMD_SECT_AP_WRITE
+	mcr	p15, 0, r1, c2, c0, 0		@ translation table base addr
+	mcr	p15, 0, r5, c13, c0, 0		@ PID
+	mov	r0, r6				@ control register
 	b	cpu_resume_mmu
 ENDPROC(cpu_sa1100_do_resume)
 #endif
diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S
index a923aa0fd00..d061d2fa550 100644
--- a/arch/arm/mm/proc-v6.S
+++ b/arch/arm/mm/proc-v6.S
@@ -128,20 +128,18 @@ ENTRY(cpu_v6_set_pte_ext)
 
 /* Suspend/resume support: taken from arch/arm/mach-s3c64xx/sleep.S */
 .globl	cpu_v6_suspend_size
-.equ	cpu_v6_suspend_size, 4 * 8
+.equ	cpu_v6_suspend_size, 4 * 6
 #ifdef CONFIG_PM_SLEEP
 ENTRY(cpu_v6_do_suspend)
-	stmfd	sp!, {r4 - r11, lr}
+	stmfd	sp!, {r4 - r9, lr}
 	mrc	p15, 0, r4, c13, c0, 0	@ FCSE/PID
-	mrc	p15, 0, r5, c13, c0, 1	@ Context ID
-	mrc	p15, 0, r6, c3, c0, 0	@ Domain ID
-	mrc	p15, 0, r7, c2, c0, 0	@ Translation table base 0
-	mrc	p15, 0, r8, c2, c0, 1	@ Translation table base 1
-	mrc	p15, 0, r9, c1, c0, 1	@ auxiliary control register
-	mrc	p15, 0, r10, c1, c0, 2	@ co-processor access control
-	mrc	p15, 0, r11, c1, c0, 0	@ control register
-	stmia	r0, {r4 - r11}
-	ldmfd	sp!, {r4- r11, pc}
+	mrc	p15, 0, r5, c3, c0, 0	@ Domain ID
+	mrc	p15, 0, r6, c2, c0, 1	@ Translation table base 1
+	mrc	p15, 0, r7, c1, c0, 1	@ auxiliary control register
+	mrc	p15, 0, r8, c1, c0, 2	@ co-processor access control
+	mrc	p15, 0, r9, c1, c0, 0	@ control register
+	stmia	r0, {r4 - r9}
+	ldmfd	sp!, {r4- r9, pc}
 ENDPROC(cpu_v6_do_suspend)
 
 ENTRY(cpu_v6_do_resume)
@@ -150,25 +148,21 @@ ENTRY(cpu_v6_do_resume)
 	mcr	p15, 0, ip, c7, c5, 0	@ invalidate I cache
 	mcr	p15, 0, ip, c7, c15, 0	@ clean+invalidate cache
 	mcr	p15, 0, ip, c7, c10, 4	@ drain write buffer
-	ldmia	r0, {r4 - r11}
+	mcr	p15, 0, ip, c13, c0, 1	@ set reserved context ID
+	ldmia	r0, {r4 - r9}
 	mcr	p15, 0, r4, c13, c0, 0	@ FCSE/PID
-	mcr	p15, 0, r5, c13, c0, 1	@ Context ID
-	mcr	p15, 0, r6, c3, c0, 0	@ Domain ID
-	mcr	p15, 0, r7, c2, c0, 0	@ Translation table base 0
-	mcr	p15, 0, r8, c2, c0, 1	@ Translation table base 1
-	mcr	p15, 0, r9, c1, c0, 1	@ auxiliary control register
-	mcr	p15, 0, r10, c1, c0, 2	@ co-processor access control
+	mcr	p15, 0, r5, c3, c0, 0	@ Domain ID
+	ALT_SMP(orr	r1, r1, #TTB_FLAGS_SMP)
+	ALT_UP(orr	r1, r1, #TTB_FLAGS_UP)
+	mcr	p15, 0, r1, c2, c0, 0	@ Translation table base 0
+	mcr	p15, 0, r6, c2, c0, 1	@ Translation table base 1
+	mcr	p15, 0, r7, c1, c0, 1	@ auxiliary control register
+	mcr	p15, 0, r8, c1, c0, 2	@ co-processor access control
 	mcr	p15, 0, ip, c2, c0, 2	@ TTB control register
 	mcr	p15, 0, ip, c7, c5, 4	@ ISB
-	mov	r0, r11			@ control register
-	mov	r2, r7, lsr #14		@ get TTB0 base
-	mov	r2, r2, lsl #14
-	ldr	r3, cpu_resume_l1_flags
+	mov	r0, r9			@ control register
 	b	cpu_resume_mmu
 ENDPROC(cpu_v6_do_resume)
-cpu_resume_l1_flags:
-	ALT_SMP(.long PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_FLAGS_SMP)
-	ALT_UP(.long  PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_FLAGS_UP)
 #endif
 
 	string	cpu_v6_name, "ARMv6-compatible processor"
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index 9049c0764db..6af366ce016 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -217,56 +217,50 @@ ENDPROC(cpu_v7_set_pte_ext)
 
 /* Suspend/resume support: derived from arch/arm/mach-s5pv210/sleep.S */
 .globl	cpu_v7_suspend_size
-.equ	cpu_v7_suspend_size, 4 * 9
+.equ	cpu_v7_suspend_size, 4 * 7
 #ifdef CONFIG_PM_SLEEP
 ENTRY(cpu_v7_do_suspend)
-	stmfd	sp!, {r4 - r11, lr}
+	stmfd	sp!, {r4 - r10, lr}
 	mrc	p15, 0, r4, c13, c0, 0	@ FCSE/PID
-	mrc	p15, 0, r5, c13, c0, 1	@ Context ID
-	mrc	p15, 0, r6, c13, c0, 3	@ User r/o thread ID
-	stmia	r0!, {r4 - r6}
+	mrc	p15, 0, r5, c13, c0, 3	@ User r/o thread ID
+	stmia	r0!, {r4 - r5}
 	mrc	p15, 0, r6, c3, c0, 0	@ Domain ID
-	mrc	p15, 0, r7, c2, c0, 0	@ TTB 0
-	mrc	p15, 0, r8, c2, c0, 1	@ TTB 1
-	mrc	p15, 0, r9, c1, c0, 0	@ Control register
-	mrc	p15, 0, r10, c1, c0, 1	@ Auxiliary control register
-	mrc	p15, 0, r11, c1, c0, 2	@ Co-processor access control
-	stmia	r0, {r6 - r11}
-	ldmfd	sp!, {r4 - r11, pc}
+	mrc	p15, 0, r7, c2, c0, 1	@ TTB 1
+	mrc	p15, 0, r8, c1, c0, 0	@ Control register
+	mrc	p15, 0, r9, c1, c0, 1	@ Auxiliary control register
+	mrc	p15, 0, r10, c1, c0, 2	@ Co-processor access control
+	stmia	r0, {r6 - r10}
+	ldmfd	sp!, {r4 - r10, pc}
 ENDPROC(cpu_v7_do_suspend)
 
 ENTRY(cpu_v7_do_resume)
 	mov	ip, #0
 	mcr	p15, 0, ip, c8, c7, 0	@ invalidate TLBs
 	mcr	p15, 0, ip, c7, c5, 0	@ invalidate I cache
-	ldmia	r0!, {r4 - r6}
+	mcr	p15, 0, ip, c13, c0, 1	@ set reserved context ID
+	ldmia	r0!, {r4 - r5}
 	mcr	p15, 0, r4, c13, c0, 0	@ FCSE/PID
-	mcr	p15, 0, r5, c13, c0, 1	@ Context ID
-	mcr	p15, 0, r6, c13, c0, 3	@ User r/o thread ID
-	ldmia	r0, {r6 - r11}
+	mcr	p15, 0, r5, c13, c0, 3	@ User r/o thread ID
+	ldmia	r0, {r6 - r10}
 	mcr	p15, 0, r6, c3, c0, 0	@ Domain ID
-	mcr	p15, 0, r7, c2, c0, 0	@ TTB 0
-	mcr	p15, 0, r8, c2, c0, 1	@ TTB 1
+	ALT_SMP(orr	r1, r1, #TTB_FLAGS_SMP)
+	ALT_UP(orr	r1, r1, #TTB_FLAGS_UP)
+	mcr	p15, 0, r1, c2, c0, 0	@ TTB 0
+	mcr	p15, 0, r7, c2, c0, 1	@ TTB 1
 	mcr	p15, 0, ip, c2, c0, 2	@ TTB control register
 	mrc	p15, 0, r4, c1, c0, 1	@ Read Auxiliary control register
-	teq	r4, r10			@ Is it already set?
-	mcrne	p15, 0, r10, c1, c0, 1	@ No, so write it
-	mcr	p15, 0, r11, c1, c0, 2	@ Co-processor access control
+	teq	r4, r9			@ Is it already set?
+	mcrne	p15, 0, r9, c1, c0, 1	@ No, so write it
+	mcr	p15, 0, r10, c1, c0, 2	@ Co-processor access control
 	ldr	r4, =PRRR		@ PRRR
 	ldr	r5, =NMRR		@ NMRR
 	mcr	p15, 0, r4, c10, c2, 0	@ write PRRR
 	mcr	p15, 0, r5, c10, c2, 1	@ write NMRR
 	isb
 	dsb
-	mov	r0, r9			@ control register
-	mov	r2, r7, lsr #14		@ get TTB0 base
-	mov	r2, r2, lsl #14
-	ldr	r3, cpu_resume_l1_flags
+	mov	r0, r8			@ control register
 	b	cpu_resume_mmu
 ENDPROC(cpu_v7_do_resume)
-cpu_resume_l1_flags:
-	ALT_SMP(.long PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_FLAGS_SMP)
-	ALT_UP(.long  PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_FLAGS_UP)
 #endif
 
 	__CPUINIT
diff --git a/arch/arm/mm/proc-xsc3.S b/arch/arm/mm/proc-xsc3.S
index 755e1bf2268..abf0507a08a 100644
--- a/arch/arm/mm/proc-xsc3.S
+++ b/arch/arm/mm/proc-xsc3.S
@@ -406,24 +406,23 @@ ENTRY(cpu_xsc3_set_pte_ext)
 	.align
 
 .globl	cpu_xsc3_suspend_size
-.equ	cpu_xsc3_suspend_size, 4 * 7
+.equ	cpu_xsc3_suspend_size, 4 * 6
 #ifdef CONFIG_PM_SLEEP
 ENTRY(cpu_xsc3_do_suspend)
-	stmfd	sp!, {r4 - r10, lr}
+	stmfd	sp!, {r4 - r9, lr}
 	mrc	p14, 0, r4, c6, c0, 0	@ clock configuration, for turbo mode
 	mrc	p15, 0, r5, c15, c1, 0	@ CP access reg
 	mrc	p15, 0, r6, c13, c0, 0	@ PID
 	mrc 	p15, 0, r7, c3, c0, 0	@ domain ID
-	mrc 	p15, 0, r8, c2, c0, 0	@ translation table base addr
-	mrc	p15, 0, r9, c1, c0, 1	@ auxiliary control reg
-	mrc 	p15, 0, r10, c1, c0, 0	@ control reg
+	mrc	p15, 0, r8, c1, c0, 1	@ auxiliary control reg
+	mrc 	p15, 0, r9, c1, c0, 0	@ control reg
 	bic	r4, r4, #2		@ clear frequency change bit
-	stmia	r0, {r4 - r10}		@ store cp regs
-	ldmia	sp!, {r4 - r10, pc}
+	stmia	r0, {r4 - r9}		@ store cp regs
+	ldmia	sp!, {r4 - r9, pc}
 ENDPROC(cpu_xsc3_do_suspend)
 
 ENTRY(cpu_xsc3_do_resume)
-	ldmia	r0, {r4 - r10}		@ load cp regs
+	ldmia	r0, {r4 - r9}		@ load cp regs
 	mov	ip, #0
 	mcr	p15, 0, ip, c7, c7, 0	@ invalidate I & D caches, BTB
 	mcr	p15, 0, ip, c7, c10, 4	@ drain write (&fill) buffer
@@ -433,15 +432,10 @@ ENTRY(cpu_xsc3_do_resume)
 	mcr	p15, 0, r5, c15, c1, 0	@ CP access reg
 	mcr	p15, 0, r6, c13, c0, 0	@ PID
 	mcr	p15, 0, r7, c3, c0, 0	@ domain ID
-	mcr	p15, 0, r8, c2, c0, 0	@ translation table base addr
-	mcr	p15, 0, r9, c1, c0, 1	@ auxiliary control reg
-
-	@ temporarily map resume_turn_on_mmu into the page table,
-	@ otherwise prefetch abort occurs after MMU is turned on
-	mov	r0, r10			@ control register
-	mov	r2, r8, lsr #14		@ get TTB0 base
-	mov	r2, r2, lsl #14
-	ldr	r3, =0x542e		@ section flags
+	orr	r1, r1, #0x18		@ cache the page table in L2
+	mcr	p15, 0, r1, c2, c0, 0	@ translation table base addr
+	mcr	p15, 0, r8, c1, c0, 1	@ auxiliary control reg
+	mov	r0, r9			@ control register
 	b	cpu_resume_mmu
 ENDPROC(cpu_xsc3_do_resume)
 #endif
diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S
index fbc06e55b87..3277904beba 100644
--- a/arch/arm/mm/proc-xscale.S
+++ b/arch/arm/mm/proc-xscale.S
@@ -520,24 +520,23 @@ ENTRY(cpu_xscale_set_pte_ext)
 	.align
 
 .globl	cpu_xscale_suspend_size
-.equ	cpu_xscale_suspend_size, 4 * 7
+.equ	cpu_xscale_suspend_size, 4 * 6
 #ifdef CONFIG_PM_SLEEP
 ENTRY(cpu_xscale_do_suspend)
-	stmfd	sp!, {r4 - r10, lr}
+	stmfd	sp!, {r4 - r9, lr}
 	mrc	p14, 0, r4, c6, c0, 0	@ clock configuration, for turbo mode
 	mrc	p15, 0, r5, c15, c1, 0	@ CP access reg
 	mrc	p15, 0, r6, c13, c0, 0	@ PID
 	mrc	p15, 0, r7, c3, c0, 0	@ domain ID
-	mrc	p15, 0, r8, c2, c0, 0	@ translation table base addr
-	mrc	p15, 0, r9, c1, c1, 0	@ auxiliary control reg
-	mrc	p15, 0, r10, c1, c0, 0	@ control reg
+	mrc	p15, 0, r8, c1, c1, 0	@ auxiliary control reg
+	mrc	p15, 0, r9, c1, c0, 0	@ control reg
 	bic	r4, r4, #2		@ clear frequency change bit
-	stmia	r0, {r4 - r10}		@ store cp regs
-	ldmfd	sp!, {r4 - r10, pc}
+	stmia	r0, {r4 - r9}		@ store cp regs
+	ldmfd	sp!, {r4 - r9, pc}
 ENDPROC(cpu_xscale_do_suspend)
 
 ENTRY(cpu_xscale_do_resume)
-	ldmia	r0, {r4 - r10}		@ load cp regs
+	ldmia	r0, {r4 - r9}		@ load cp regs
 	mov	ip, #0
 	mcr	p15, 0, ip, c8, c7, 0	@ invalidate I & D TLBs
 	mcr	p15, 0, ip, c7, c7, 0	@ invalidate I & D caches, BTB
@@ -545,13 +544,9 @@ ENTRY(cpu_xscale_do_resume)
 	mcr	p15, 0, r5, c15, c1, 0	@ CP access reg
 	mcr	p15, 0, r6, c13, c0, 0	@ PID
 	mcr	p15, 0, r7, c3, c0, 0	@ domain ID
-	mcr	p15, 0, r8, c2, c0, 0	@ translation table base addr
-	mcr	p15, 0, r9, c1, c1, 0	@ auxiliary control reg
-	mov	r0, r10			@ control register
-	mov	r2, r8, lsr #14		@ get TTB0 base
-	mov	r2, r2, lsl #14
-	ldr	r3, =PMD_TYPE_SECT | PMD_SECT_BUFFERABLE | \
-		     PMD_SECT_CACHEABLE | PMD_SECT_AP_WRITE
+	mcr	p15, 0, r1, c2, c0, 0	@ translation table base addr
+	mcr	p15, 0, r8, c1, c1, 0	@ auxiliary control reg
+	mov	r0, r9			@ control register
 	b	cpu_resume_mmu
 ENDPROC(cpu_xscale_do_resume)
 #endif