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| author | Ezequiel Garcia <ezequiel.garcia@free-electrons.com> | 2013-08-16 11:28:24 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-08-20 01:12:52 +0200 |
| commit | 19a0519d3642d140bfb1bd602a34dc4f98606b19 (patch) | |
| tree | ce8c8b73e3b5ce595e9832ce089e975b4af2fd7b /arch/arm/mm/proc-feroceon.S | |
| parent | ARM: 7814/2: Allow forced irq threading (diff) | |
| download | linux-19a0519d3642d140bfb1bd602a34dc4f98606b19.tar.xz linux-19a0519d3642d140bfb1bd602a34dc4f98606b19.zip | |
ARM: 7818/1: feroceon: Add suspend/resume operation
Add support for suspend/resume operations. The implemented procedures
are identical to the ones for ARM926.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mm/proc-feroceon.S')
| -rw-r--r-- | arch/arm/mm/proc-feroceon.S | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S index d5146b98c8d1..db79b62c92fb 100644 --- a/arch/arm/mm/proc-feroceon.S +++ b/arch/arm/mm/proc-feroceon.S @@ -514,6 +514,32 @@ ENTRY(cpu_feroceon_set_pte_ext) #endif mov pc, lr +/* Suspend/resume support: taken from arch/arm/mm/proc-arm926.S */ +.globl cpu_feroceon_suspend_size +.equ cpu_feroceon_suspend_size, 4 * 3 +#ifdef CONFIG_ARM_CPU_SUSPEND +ENTRY(cpu_feroceon_do_suspend) + 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, c1, c0, 0 @ Control register + stmia r0, {r4 - r6} + ldmfd sp!, {r4 - r6, pc} +ENDPROC(cpu_feroceon_do_suspend) + +ENTRY(cpu_feroceon_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 - r6} + mcr p15, 0, r4, c13, c0, 0 @ PID + mcr p15, 0, r5, c3, c0, 0 @ Domain ID + mcr p15, 0, r1, c2, c0, 0 @ TTB address + mov r0, r6 @ control register + b cpu_resume_mmu +ENDPROC(cpu_feroceon_do_resume) +#endif + .type __feroceon_setup, #function __feroceon_setup: mov r0, #0 |