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2017-02-13dt-bindings: mmc: sunxi: Document A64 eMMC compatibleMaxime Ripard1-0/+1
We introduced recently a new compatible to deal with the A64 eMMC controller, let's document its binding. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-09-26Documentation: dt: Add new compatible to sunxi mmc driver bindingsIcenowy Zheng1-0/+1
Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2016-09-26mmc: sunxi: sun4i / sun5i do not have sample clocksHans de Goede1-1/+5
It turns out that sun4i (A10) and sun5i (A13 & co) do not have sample clocks, so add a new sun7i-a20-mmc compatible and do not try to use sample clocks on sun4i / sun5i. Since sun4i / sun5i do not have sample clocks, they cannot (reliably) do DDR rates, so only set MMC_CAP_1_8V_DDR when we do have sample clks. Note this patch leaves the clk_prepare_enable() / clk_disable_unprepare() calls to the sample clks as-is, without adding checks for them being NULL. All the clk_foo calls accept a NULL clk and will return success when called with a NULL clk. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-01-14mmc: sunxi: Convert MMC driver to the standard clock phase APIMaxime Ripard1-4/+4
Now that we have proper support to use the generic phase API in our clock driver, switch the MMC driver to use it. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: David Lanzendörfer <david.lanzendoerfer@o2s.ch> Reviewed-by: Chen-Yu Tsai <wens@csie.org> Tested-by: Chen-Yu Tsai <wens@csie.org>
2014-06-04mmc: sunxi: Add driver for SD/MMC hosts found on Allwinner sunxi SoCsDavid Lanzendörfer1-0/+43
The Allwinner sunxi mmc host uses dma in bus-master mode using a built-in designware idmac controller, which is identical to the one found in the mmc-dw hosts. However the rest of the host is not identical to mmc-dw, it deals with sending stop commands in hardware which makes it significantly different from the mmc-dw devices. Signed-off-by: David Lanzendörfer <david.lanzendoerfer@o2s.ch> [hdegoede@redhat.com: various cleanups and fixes] Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Chris Ball <chris@printf.net> Signed-off-by: Mike Turquette <mturquette@linaro.org>