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authorMatt Reimer <mreimer@vpop.net>2007-02-12 21:05:02 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2007-02-12 20:58:07 +0000
commit07b04595e3630594773223874827f5bbd03fc289 (patch)
tree5e5a24f7c4019b7a33a803ed34dba504b17b3000 /arch
parent4b210faf0944172e55489bef83babf520bccc1c4 (diff)
[ARM] 4170/1: S3C2410: don't save and restore cp register 15
Don't save and restore cp register 15 since it is only a test register on S3C2410. This is probably a leftover from the PXA sleep.S from which this was derived. Supersedes patch 4167. Signed-off-by: Matt Reimer <mreimer@vpop.net> Acked-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/plat-s3c24xx/sleep.S18
1 files changed, 8 insertions, 10 deletions
diff --git a/arch/arm/plat-s3c24xx/sleep.S b/arch/arm/plat-s3c24xx/sleep.S
index 2018c2e1dcc..435349dc324 100644
--- a/arch/arm/plat-s3c24xx/sleep.S
+++ b/arch/arm/plat-s3c24xx/sleep.S
@@ -64,11 +64,10 @@ ENTRY(s3c2410_cpu_save)
@@ store co-processor registers
- mrc p15, 0, r4, c15, c1, 0 @ CP access register
- mrc p15, 0, r5, c13, c0, 0 @ PID
- mrc p15, 0, r6, c3, c0, 0 @ Domain ID
- mrc p15, 0, r7, c2, c0, 0 @ translation table base address
- mrc p15, 0, r8, c1, c0, 0 @ control register
+ mrc p15, 0, r4, c13, c0, 0 @ PID
+ mrc p15, 0, r5, c3, c0, 0 @ Domain ID
+ mrc p15, 0, r6, c2, c0, 0 @ translation table base address
+ mrc p15, 0, r7, c1, c0, 0 @ control register
stmia r0, { r4 - r13 }
@@ -141,10 +140,9 @@ ENTRY(s3c2410_cpu_resume)
ldr r0, s3c2410_sleep_save_phys @ address of restore block
ldmia r0, { r4 - r13 }
- mcr p15, 0, r4, c15, c1, 0 @ CP access register
- mcr p15, 0, r5, c13, c0, 0 @ PID
- mcr p15, 0, r6, c3, c0, 0 @ Domain ID
- mcr p15, 0, r7, c2, c0, 0 @ translation table base
+ mcr p15, 0, r4, c13, c0, 0 @ PID
+ mcr p15, 0, r5, c3, c0, 0 @ Domain ID
+ mcr p15, 0, r6, c2, c0, 0 @ translation table base
#ifdef CONFIG_DEBUG_RESUME
mov r3, #'R'
@@ -152,7 +150,7 @@ ENTRY(s3c2410_cpu_resume)
#endif
ldr r2, =resume_with_mmu
- mcr p15, 0, r8, c1, c0, 0 @ turn on MMU, etc
+ mcr p15, 0, r7, c1, c0, 0 @ turn on MMU, etc
nop @ second-to-last before mmu
mov pc, r2 @ go back to virtual address