diff options
Diffstat (limited to 'arch/arm/mach-tegra/sleep-t2.S')
| -rw-r--r-- | arch/arm/mach-tegra/sleep-t2.S | 29 |
1 files changed, 21 insertions, 8 deletions
diff --git a/arch/arm/mach-tegra/sleep-t2.S b/arch/arm/mach-tegra/sleep-t2.S index 3144368c23f0..e4bf9223e635 100644 --- a/arch/arm/mach-tegra/sleep-t2.S +++ b/arch/arm/mach-tegra/sleep-t2.S @@ -107,8 +107,7 @@ ENTRY(tegra2_cpu_reset) cmp r0, #0 moveq pc, lr @ must not be called for CPU 0 - mov32 r3, TEGRA_PMC_VIRT - add r1, r3, #PMC_SCRATCH41 + mov32 r1, TEGRA_PMC_VIRT + PMC_SCRATCH41 mov r12, #CPU_RESETTABLE str r12, [r1] @@ -134,14 +133,26 @@ ENDPROC(tegra2_cpu_reset) #ifdef CONFIG_PM_SLEEP /* + * tegra2_cpu_clear_resettable(void) + * + * Called to clear the "resettable soon" flag in PMC_SCRATCH41 when + * it is expected that the secondary CPU will be idle soon. + */ +ENTRY(tegra2_cpu_clear_resettable) + mov32 r1, TEGRA_PMC_VIRT + PMC_SCRATCH41 + mov r12, #CPU_NOT_RESETTABLE + str r12, [r1] + mov pc, lr +ENDPROC(tegra2_cpu_clear_resettable) + +/* * tegra2_cpu_set_resettable_soon(void) * * Called to set the "resettable soon" flag in PMC_SCRATCH41 when * it is expected that the secondary CPU will be idle soon. */ ENTRY(tegra2_cpu_set_resettable_soon) - mov32 r3, TEGRA_PMC_VIRT - add r1, r3, #PMC_SCRATCH41 + mov32 r1, TEGRA_PMC_VIRT + PMC_SCRATCH41 mov r12, #CPU_RESETTABLE_SOON str r12, [r1] mov pc, lr @@ -154,8 +165,7 @@ ENDPROC(tegra2_cpu_set_resettable_soon) * set because it is expected that the secondary CPU will be idle soon. */ ENTRY(tegra2_cpu_is_resettable_soon) - mov32 r3, TEGRA_PMC_VIRT - add r1, r3, #PMC_SCRATCH41 + mov32 r1, TEGRA_PMC_VIRT + PMC_SCRATCH41 ldr r12, [r1] cmp r12, #CPU_RESETTABLE_SOON moveq r0, #1 @@ -189,13 +199,16 @@ ENTRY(tegra2_sleep_wfi) b tegra_cpu_save mov r11, r2 - mov32 r3, TEGRA_PMC_VIRT - add r0, r3, #PMC_SCRATCH41 + mov32 r0, TEGRA_PMC_VIRT + PMC_SCRATCH41 mov r3, #CPU_RESETTABLE str r3, [r0] bl tegra_cpu_wfi + mov32 r0, TEGRA_PMC_VIRT + PMC_SCRATCH41 + mov r3, #CPU_NOT_RESETTABLE + str r3, [r0] + /* * cpu may be reset while in wfi, which will return through * tegra_resume to tegra_cpu_resume_phys to tegra_cpu_resume |