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| author | Akshay Saraswat <akshay.s@samsung.com> | 2013-02-25 01:13:06 +0000 |
|---|---|---|
| committer | Minkyu Kang <mk7.kang@samsung.com> | 2013-03-12 17:07:31 +0900 |
| commit | 3a0b1dae5b9b853559b87a2332a27d1ed6a91fb8 (patch) | |
| tree | fa466a0120e4b4c401964149196ff319e92d82a9 /arch/arm/cpu/armv7/exynos | |
| parent | 8afcfc212415b8bacdf08b752aef7976e7da52a8 (diff) | |
| download | u-boot-imx-3a0b1dae5b9b853559b87a2332a27d1ed6a91fb8.zip u-boot-imx-3a0b1dae5b9b853559b87a2332a27d1ed6a91fb8.tar.gz u-boot-imx-3a0b1dae5b9b853559b87a2332a27d1ed6a91fb8.tar.bz2 | |
Exynos5: TMU: Add hardware tripping
This adds hardware tripping at 110 degrees celsius which must enable
forced system shutdown in case TMU fails to power off.
Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Diffstat (limited to 'arch/arm/cpu/armv7/exynos')
| -rw-r--r-- | arch/arm/cpu/armv7/exynos/power.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/exynos/power.c b/arch/arm/cpu/armv7/exynos/power.c index db7249e..6375a81 100644 --- a/arch/arm/cpu/armv7/exynos/power.c +++ b/arch/arm/cpu/armv7/exynos/power.c @@ -128,3 +128,15 @@ void set_xclkout(void) if (cpu_is_exynos5()) exynos5_set_xclkout(); } + +/* Enables hardware tripping to power off the system when TMU fails */ +void set_hw_thermal_trip(void) +{ + if (cpu_is_exynos5()) { + struct exynos5_power *power = + (struct exynos5_power *)samsung_get_base_power(); + + /* PS_HOLD_CONTROL register ENABLE_HW_TRIP bit*/ + setbits_le32(&power->ps_hold_control, POWER_ENABLE_HW_TRIP); + } +} |