[PATCH] arm64: dts: marvell: armada-3720-espressobin: Add vqmmc regulator for SD slot

Sean Nyekjaer
2017-07-29T10:44:11Z

By adding this regulator, the SD cards are usable at higher speed
protocols such as SDR104.

This patch was tested with an SDHC card compatible with UHS-I.

Signed-off-by: Sean Nyekjaer <sean@nyekjaer.dk>
---

This patch depends on "[PATCH] arm64: dts: marvell: Add microsd card definition for the ESPRESSObin"

arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
index 2dadd77e08eb..d5ab5b47f8d4 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
@@ -60,6 +60,19 @@
device_type = "memory";
reg = <0x00000000 0x00000000 0x00000000 0x20000000>;
};
+
+ vcc_sd_reg1: regulator {
+ compatible = "regulator-gpio";
+ regulator-name= "vcc_sd1";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+
+ gpios = <&gpionb 4 GPIO_ACTIVE_HIGH>;
+ gpios-states = <0>;
+ states = <1800000 0x1
+ 3300000 0x0>;
+ enable-active-high;
+ };
};

/* J9 */
@@ -82,7 +95,7 @@
wp-inverted;
bus-width = <4>;
cd-gpios = <&gpionb 3 GPIO_ACTIVE_LOW>;
- no-1-8-v;
+ vqmmc-supply = <&vcc_sd_reg1>;
marvell,pad-type = "sd";
status = "okay";
};
--
2.13.3