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From ebe3ae29c6314217edf40d9ee23c36d610ff0fb8 Mon Sep 17 00:00:00 2001
From: Andre Przywara <andre.przywara@arm.com>
Date: Tue, 10 Jan 2017 01:22:31 +0000
Subject: arm64: allwinner: pine64: add MMC support
All Pine64 boards connect an micro-SD card slot to the first MMC
controller.
Enable the respective DT node and specify the (always-on) regulator
and card-detect pin.
As a micro-SD slot does not feature a write-protect switch, we disable
this feature.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
---
arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts
@@ -44,6 +44,8 @@
#include "sun50i-a64.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
/ {
model = "Pine64";
compatible = "pine64,pine64", "allwinner,sun50i-a64";
@@ -55,6 +57,13 @@
chosen {
stdout-path = "serial0:115200n8";
};
+
+ reg_vcc3v3: vcc3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "vcc3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
};
&ehci1 {
@@ -71,6 +80,17 @@
bias-pull-up;
};
+&mmc0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc0_pins>;
+ vmmc-supply = <®_vcc3v3>;
+ cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>;
+ cd-inverted;
+ disable-wp;
+ bus-width = <4>;
+ status = "okay";
+};
+
&ohci1 {
status = "okay";
};
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