This adds HS400 mode support for exynos dw_mmc host controller.
Currently tested on Exynos5800-peach-pi platform for HS400 mode.
Tested HS200 mode with this series applied, HS200 still works.
Appreciate testing on other exynos5/7 platform which supports emmc5.0
Changes in V4:
* drop the idea of changing existing binding for ciu_div as per [1]
* addressed comments from Jaehoon Chung [2]
[1] http://www.spinics.net/lists/linux-samsung-soc/msg40923.html
[2] http://www.spinics.net/lists/devicetree/msg64373.html
Changes in V3:
rebased on ulf's next (commit: 607b448 mmc: core: Make tuning block
patterns static)
Seungwon Jeon (2):
mmc: dw_mmc: exynos: Support eMMC's HS400 mode
ARM: dts: Add HS400 support for exynos5420 and exynos5800
.../devicetree/bindings/mmc/exynos-dw-mshc.txt | 7 +
arch/arm/boot/dts/exynos5420-peach-pit.dts | 4 +-
arch/arm/boot/dts/exynos5420-pinctrl.dtsi | 7 +
arch/arm/boot/dts/exynos5420-smdk5420.dts | 4 +-
arch/arm/boot/dts/exynos5800-peach-pi.dts | 4 +-
drivers/mmc/host/dw_mmc-exynos.c | 187 ++++++++++++++++----
drivers/mmc/host/dw_mmc-exynos.h | 19 +-
drivers/mmc/host/dw_mmc.c | 16 +-
drivers/mmc/host/dw_mmc.h | 2 +
9 files changed, 212 insertions(+), 38 deletions(-)
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1.7.9.5
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