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