This patchset is to support eMMC reset using DT for some exynos boards e.g. Odroid X2/U3/XU3.

It needs to reset eMMC memory to perform complete reboot, so we should handle SD4_nRESET_OUT line specially. SD4_nRESET_OUT line is connected to gpio and it can have different gpio by boards, so we will get gpio from DT.

This patchset based on http://git.denx.de/u-boot-dm.git gpio-working branch.

Thanks.

Joonyoung Shim (3): samsung: board: support eMMC reset using DT Odroid: Add eMMC-reset node on DT Odroid-XU3: Add eMMC-reset node on DT

arch/arm/dts/exynos4412-odroid.dts | 5 +++++ arch/arm/dts/exynos5422-odroidxu3.dts | 5 +++++ board/samsung/common/board.c | 27 ++++++++++++++++++++++++++ board/samsung/odroid/odroid.c | 2 +- doc/device-tree-bindings/exynos/emmc-reset.txt | 15 ++++++++++++++ 5 files changed, 53 insertions(+), 1 deletion(-) create mode 100644 doc/device-tree-bindings/exynos/emmc-reset.txt