linux-kernel - [PATCH 2/3] ARM: dts: sun7i: Olimex A20-SOM-EVB: Enable mmc3 (baseboard SD socket)

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Date:	Thu, 10 Dec 2015 21:32:00 +0100
From:	Karsten Merker <merker@...ian.org>
To:	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Chen-Yu Tsai <wens@...e.org>,
	linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
	dev@...ux-sunxi.org
Cc:	linux-kernel@...r.kernel.org, Hans de Goede <hdegoede@...hat.com>,
	Rob Herring <robh+dt@...nel.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Karsten Merker <merker@...ian.org>
Subject: [PATCH 2/3] ARM: dts: sun7i: Olimex A20-SOM-EVB: Enable mmc3 (baseboard SD socket)

The Olimex A20-SOM-EVB is an evaluation board for the Olimex
A20-SOM system-on-module. The baseboard provides a full-size SD
socket (connected to mmc3) in addition to the micro-SD socket on
the SOM itself (which is connected to mmc0).

Enable the mmc3 controller in the dts.

Signed-off-by: Karsten Merker <merker@...ian.org>
---
 arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts b/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts
index 6562a6bc..6a3d95d 100644
--- a/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts
@@ -176,6 +176,16 @@
 	status = "okay";
 };
 
+&mmc3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc3_pins_a>, <&mmc3_cd_pin_olimex_som_evb>;
+	vmmc-supply = <&reg_vcc3v3>;
+	bus-width = <4>;
+	cd-gpios = <&pio 7 0 GPIO_ACTIVE_HIGH>; /* PH0 */
+	cd-inverted;
+	status = "okay";
+};
+
 &ohci0 {
 	status = "okay";
 };
@@ -198,6 +208,13 @@
 		allwinner,drive = <SUN4I_PINCTRL_20_MA>;
 		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
 	};
+
+	mmc3_cd_pin_olimex_som_evb: mmc3_cd_pin@0 {
+		allwinner,pins = "PH0";
+		allwinner,function = "gpio_in";
+		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+		allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
+	};
 };
 
 &reg_ahci_5v {
-- 
2.1.4

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