diff options
Diffstat (limited to 'arch/arm/mach-tegra/sleep.S')
| -rw-r--r-- | arch/arm/mach-tegra/sleep.S | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/arch/arm/mach-tegra/sleep.S b/arch/arm/mach-tegra/sleep.S index 5b20197bae7f..d29b156a8011 100644 --- a/arch/arm/mach-tegra/sleep.S +++ b/arch/arm/mach-tegra/sleep.S | |||
| @@ -62,32 +62,3 @@ | |||
| 62 | movw \reg, #:lower16:\val | 62 | movw \reg, #:lower16:\val |
| 63 | movt \reg, #:upper16:\val | 63 | movt \reg, #:upper16:\val |
| 64 | .endm | 64 | .endm |
| 65 | |||
| 66 | /* | ||
| 67 | * tegra_cpu_wfi | ||
| 68 | * | ||
| 69 | * puts current CPU in clock-gated wfi using the flow controller | ||
| 70 | * | ||
| 71 | * corrupts r0-r3 | ||
| 72 | * must be called with MMU on | ||
| 73 | */ | ||
| 74 | |||
| 75 | ENTRY(tegra_cpu_wfi) | ||
| 76 | cpu_id r0 | ||
| 77 | cpu_to_halt_reg r1, r0 | ||
| 78 | cpu_to_csr_reg r2, r0 | ||
| 79 | mov32 r0, TEGRA_FLOW_CTRL_VIRT | ||
| 80 | mov r3, #FLOW_CTRL_CSR_INTR_FLAG | FLOW_CTRL_CSR_EVENT_FLAG | ||
| 81 | str r3, [r0, r2] @ clear event & interrupt status | ||
| 82 | mov r3, #FLOW_CTRL_WAIT_FOR_INTERRUPT | FLOW_CTRL_JTAG_RESUME | ||
| 83 | str r3, [r0, r1] @ put flow controller in wait irq mode | ||
| 84 | dsb | ||
| 85 | wfi | ||
| 86 | mov r3, #0 | ||
| 87 | str r3, [r0, r1] @ clear flow controller halt status | ||
| 88 | mov r3, #FLOW_CTRL_CSR_INTR_FLAG | FLOW_CTRL_CSR_EVENT_FLAG | ||
| 89 | str r3, [r0, r2] @ clear event & interrupt status | ||
| 90 | dsb | ||
| 91 | mov pc, lr | ||
| 92 | ENDPROC(tegra_cpu_wfi) | ||
| 93 | |||