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| author | Chao Xie <chao.xie@marvell.com> | 2012-05-07 05:23:58 +0200 |
|---|---|---|
| committer | Haojian Zhuang <haojian.zhuang@gmail.com> | 2012-05-07 05:42:54 +0200 |
| commit | 3f5d081957cee794fe2937bb7edafa7ac949044d (patch) | |
| tree | eca3454f0e5ab78e540cc39d02b2bd82421a85d5 /arch/arm/mm | |
| parent | ARM: mmp: add PM support for mmp2 (diff) | |
| download | linux-3f5d081957cee794fe2937bb7edafa7ac949044d.tar.xz linux-3f5d081957cee794fe2937bb7edafa7ac949044d.zip | |
ARM: mm: proc-mohawk: add suspend resume for mohawk
When enable ARCH_SUSPEND_POSSIBLE, it need defintion of
cpu_mohawk_do_suspend and cpu_mohawk_do_resume
Signed-off-by: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Haojian Zhuang <<haojian.zhuang@gmail.com>
Diffstat (limited to 'arch/arm/mm')
| -rw-r--r-- | arch/arm/mm/proc-mohawk.S | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/arm/mm/proc-mohawk.S b/arch/arm/mm/proc-mohawk.S index cdfedc5b8ad8..6a050b19cdf5 100644 --- a/arch/arm/mm/proc-mohawk.S +++ b/arch/arm/mm/proc-mohawk.S @@ -344,6 +344,41 @@ ENTRY(cpu_mohawk_set_pte_ext) mcr p15, 0, r0, c7, c10, 4 @ drain WB mov pc, lr +.globl cpu_mohawk_suspend_size +.equ cpu_mohawk_suspend_size, 4 * 6 +#ifdef CONFIG_PM_SLEEP +ENTRY(cpu_mohawk_do_suspend) + 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, 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 - r9} @ store cp regs + ldmia sp!, {r4 - r9, pc} +ENDPROC(cpu_mohawk_do_suspend) + +ENTRY(cpu_mohawk_do_resume) + 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 + mcr p15, 0, ip, c7, c5, 4 @ flush prefetch buffer + mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs + mcr p14, 0, r4, c6, c0, 0 @ clock configuration, turbo mode. + 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 + 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_mohawk_do_resume) +#endif + __CPUINIT .type __mohawk_setup, #function |