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authorRussell King <rmk+kernel@arm.linux.org.uk>2011-08-31 23:26:18 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-09-20 23:33:42 +0100
commit62b2d07c0ea9db40a1787d2d0ab49f03c3e0613c (patch)
tree55c2f172adea7fba22fdedbb922f4628ba9523df /arch/arm/kernel/sleep.S
parent1aede681ac159884c77817d33230eed9185b6f6c (diff)
ARM: pm: get rid of cpu_resume_turn_mmu_on
We don't require cpu_resume_turn_mmu_on as we can combine the ldr instruction with the following code provided we ensure that cpu_resume_mmu is aligned for older CPUs. Note that we also align to a 32-byte boundary to ensure that the code can't cross a section boundary. Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Tested-by: Shawn Guo <shawn.guo@linaro.org> Tested-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel/sleep.S')
-rw-r--r--arch/arm/kernel/sleep.S8
1 files changed, 2 insertions, 6 deletions
diff --git a/arch/arm/kernel/sleep.S b/arch/arm/kernel/sleep.S
index 25d42dfb0a92..c9a43caaea80 100644
--- a/arch/arm/kernel/sleep.S
+++ b/arch/arm/kernel/sleep.S
@@ -72,19 +72,15 @@ ENDPROC(cpu_suspend_abort)
/*
* r0 = control register value
*/
+ .align 5
ENTRY(cpu_resume_mmu)
ldr r3, =cpu_resume_after_mmu
- b cpu_resume_turn_mmu_on
-ENDPROC(cpu_resume_mmu)
- .ltorg
- .align 5
-ENTRY(cpu_resume_turn_mmu_on)
mcr p15, 0, r0, c1, c0, 0 @ turn on MMU, I-cache, etc
mrc p15, 0, r0, c0, c0, 0 @ read id reg
mov r0, r0
mov r0, r0
mov pc, r3 @ jump to virtual address
-ENDPROC(cpu_resume_turn_mmu_on)
+ENDPROC(cpu_resume_mmu)
cpu_resume_after_mmu:
bl cpu_init @ restore the und/abt/irq banked regs
mov r0, #0 @ return zero on success