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| author | Sjoerd Simons <sjoerd.simons@collabora.co.uk> | 2017-01-10 12:28:57 +0100 |
|---|---|---|
| committer | Minkyu Kang <mk7.kang@samsung.com> | 2017-01-18 13:29:36 +0900 |
| commit | 701e740f59bb1108485f1cb8e1b54248eee3ff87 (patch) | |
| tree | 05afcc83b021db135e25f80471066920f3192b30 /board | |
| parent | 9c796784aa7e2e2ae4400db45381795bf766bc77 (diff) | |
| download | u-boot-701e740f59bb1108485f1cb8e1b54248eee3ff87.tar.gz u-boot-701e740f59bb1108485f1cb8e1b54248eee3ff87.tar.bz2 u-boot-701e740f59bb1108485f1cb8e1b54248eee3ff87.zip | |
exynos5: Don't potentially undervoltage the CPU
For snow when chainloading u-boot the CPU seems to be running at full
speed. The lower CPU voltage seems to be ok for u-boot, but when booting
linux (bringing up all cores) I'm seeing random crashes.
Bump the voltage up to a level that's safe for all cpu frequencies.
Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Diffstat (limited to 'board')
| -rw-r--r-- | board/samsung/common/exynos5-dt.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/board/samsung/common/exynos5-dt.c b/board/samsung/common/exynos5-dt.c index 2e3b16df45..aec1f396b0 100644 --- a/board/samsung/common/exynos5-dt.c +++ b/board/samsung/common/exynos5-dt.c @@ -123,13 +123,7 @@ int exynos_power_init(void) if (ret) return ret; - /* - * This would normally be 1.3V, but since we are running slowly 1.1V - * is enough. For spring it helps reduce CPU temperature and avoid - * hangs with the case open. 1.1V is minimum voltage borderline for - * chained bootloaders. - */ - ret = exynos_set_regulator("vdd_arm", 1100000); + ret = exynos_set_regulator("vdd_arm", 1300000); if (ret) return ret; ret = exynos_set_regulator("vdd_int", 1012500); |