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| author | Misha Komarovskiy <zombah@gmail.com> | 2015-08-25 11:53:26 +0300 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-08-31 07:57:27 -0600 |
| commit | 057d2f4973ca3de1ee2dccb284fbc09443c4a056 (patch) | |
| tree | e27cbe4f91a4c1c0cdf16f3480b8a3a965a333ae /board/samsung | |
| parent | d9917b0b6c84c6a1a36d54c9f0df66aa6061fa65 (diff) | |
| download | u-boot-imx-057d2f4973ca3de1ee2dccb284fbc09443c4a056.zip u-boot-imx-057d2f4973ca3de1ee2dccb284fbc09443c4a056.tar.gz u-boot-imx-057d2f4973ca3de1ee2dccb284fbc09443c4a056.tar.bz2 | |
exynos: Rise ARM voltage to 1.1V for chained bootloaders
If board uses downstream Chrome OS U-Boot as first stage
bootloader and upstream version is chained second stage,
1.1V is minimum voltage borderline.
Signed-off-by: Misha Komarovskiy <zombah@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'board/samsung')
| -rw-r--r-- | board/samsung/common/exynos5-dt.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/board/samsung/common/exynos5-dt.c b/board/samsung/common/exynos5-dt.c index 7d1b88a..4250f72 100644 --- a/board/samsung/common/exynos5-dt.c +++ b/board/samsung/common/exynos5-dt.c @@ -121,11 +121,12 @@ int exynos_power_init(void) return ret; /* - * This would normally be 1.3V, but since we are running slowly 1V + * 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. + * hangs with the case open. 1.1V is minimum voltage borderline for + * chained bootloaders. */ - ret = exynos_set_regulator("vdd_arm", 1000000); + ret = exynos_set_regulator("vdd_arm", 1100000); if (ret) return ret; ret = exynos_set_regulator("vdd_int", 1012500); |