[PATCH RFC 09/15] ARM: dts: sun6i: sina31s: Switch to mmc3 for onboard eMMC

From: Chen-Yu Tsai
Date: Thu Jan 21 2016 - 00:36:39 EST


According to Allwinner, only mmc3 supports 8 bit DDR transfers for eMMC.
Switch to mmc3 for the onboard eMMC, and also assign vqmmc for signal
voltage sensing/switching, and "cap-mmc-hw-reset" to denote this
instance can use eMMC hardware reset.

Signed-off-by: Chen-Yu Tsai <wens@xxxxxxxx>
---
arch/arm/boot/dts/sun6i-a31s-sina31s-core.dtsi | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/sun6i-a31s-sina31s-core.dtsi b/arch/arm/boot/dts/sun6i-a31s-sina31s-core.dtsi
index ea69fb8ad4d8..4ec0c8679b2e 100644
--- a/arch/arm/boot/dts/sun6i-a31s-sina31s-core.dtsi
+++ b/arch/arm/boot/dts/sun6i-a31s-sina31s-core.dtsi
@@ -61,12 +61,14 @@
};

/* eMMC on core board */
-&mmc2 {
+&mmc3 {
pinctrl-names = "default";
- pinctrl-0 = <&mmc2_8bit_emmc_pins>;
+ pinctrl-0 = <&mmc3_8bit_emmc_pins>;
vmmc-supply = <&reg_dcdc1>;
+ vqmmc-supply = <&reg_dcdc1>;
bus-width = <8>;
non-removable;
+ cap-mmc-hw-reset;
status = "okay";
};

--
2.7.0.rc3