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authorJoonyoung Shim <jy0922.shim@samsung.com>2015-01-15 11:45:56 +0900
committerMinkyu Kang <mk7.kang@samsung.com>2015-02-13 17:17:10 +0900
commitaa8e00fab5e65a07c2cae52274946a908805ea60 (patch)
tree2309916e5a3205abcdf476fb7e36adce1d847995 /doc/device-tree-bindings
parenta276172cf32386c211c75638f6bf3c0d59ba03ba (diff)
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samsung: board: support eMMC reset using DT
Some exynos boards require special handling of nRESET_OUT line for eMMC memory to perform complete reboot e.g. Odroid X2/U3/XU3 boards. This will support eMMC reset using DT from reset_misc of samsung common board file. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Diffstat (limited to 'doc/device-tree-bindings')
-rw-r--r--doc/device-tree-bindings/exynos/emmc-reset.txt15
1 files changed, 15 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/exynos/emmc-reset.txt b/doc/device-tree-bindings/exynos/emmc-reset.txt
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+++ b/doc/device-tree-bindings/exynos/emmc-reset.txt
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+* Samsung eMMC reset
+
+Some exynos boards require special handling of nRESET_OUT line for eMMC memory
+to perform complete reboot.
+
+Required properties:
+- compatible: should be "samsung,emmc-reset"
+- reset-gpio: gpio chip for eMMC reset.
+
+Example:
+
+emmc-reset {
+ compatible = "samsung,emmc-reset";
+ reset-gpio = <&gpk1 2 0>;
+};