diff options
| -rw-r--r-- | arch/arm/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm/mm/proc-mohawk.S | 35 |
2 files changed, 36 insertions, 1 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 4cf9d4280972..aaa22f89fd23 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -2275,7 +2275,7 @@ source "kernel/power/Kconfig" config ARCH_SUSPEND_POSSIBLE depends on !ARCH_S5PC100 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \ - CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE + CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK def_bool y config ARM_CPU_SUSPEND 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 |