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ARM: 8013/1: PJ4B: Add cpu_suspend/cpu_resume hooks for PJ4B 

PJ4B needs extra instructions for suspend and resume, so instead of
using the armv7 version, this commit introduces specific versions for
PJ4B.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Gregory CLEMENT 2014-03-28 12:21:16 +01:00 committed by Russell King
parent 64d3b6a3f4
commit 16c79a3776
1 changed files with 25 additions and 3 deletions
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28
arch/arm/mm/proc-v7.S
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@ -169,9 +169,31 @@ ENDPROC(cpu_pj4b_do_idle)
globl_equ cpu_pj4b_do_idle, cpu_v7_do_idle
#endif
globl_equ cpu_pj4b_dcache_clean_area, cpu_v7_dcache_clean_area
globl_equ cpu_pj4b_do_suspend, cpu_v7_do_suspend
globl_equ cpu_pj4b_do_resume, cpu_v7_do_resume
globl_equ cpu_pj4b_suspend_size, cpu_v7_suspend_size
#ifdef CONFIG_ARM_CPU_SUSPEND
ENTRY(cpu_pj4b_do_suspend)
stmfd sp!, {r6 - r10}
mrc p15, 1, r6, c15, c1, 0 @ save CP15 - extra features
mrc p15, 1, r7, c15, c2, 0 @ save CP15 - Aux Func Modes Ctrl 0
mrc p15, 1, r8, c15, c1, 2 @ save CP15 - Aux Debug Modes Ctrl 2
mrc p15, 1, r9, c15, c1, 1 @ save CP15 - Aux Debug Modes Ctrl 1
mrc p15, 0, r10, c9, c14, 0 @ save CP15 - PMC
stmia r0!, {r6 - r10}
ldmfd sp!, {r6 - r10}
b cpu_v7_do_suspend
ENDPROC(cpu_pj4b_do_suspend)
ENTRY(cpu_pj4b_do_resume)
ldmia r0!, {r6 - r10}
mcr p15, 1, r6, c15, c1, 0 @ save CP15 - extra features
mcr p15, 1, r7, c15, c2, 0 @ save CP15 - Aux Func Modes Ctrl 0
mcr p15, 1, r8, c15, c1, 2 @ save CP15 - Aux Debug Modes Ctrl 2
mcr p15, 1, r9, c15, c1, 1 @ save CP15 - Aux Debug Modes Ctrl 1
mcr p15, 0, r10, c9, c14, 0 @ save CP15 - PMC
b cpu_v7_do_resume
ENDPROC(cpu_pj4b_do_resume)
#endif
.globl cpu_pj4b_suspend_size
.equ cpu_pj4b_suspend_size, 4 * 14
#endif