linux-kernel - [PATCH v2 1/3] arm64: dts: rockchip: add mmc nodes for rk3328 evaluation board

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Message-Id: <1503542223-21044-2-git-send-email-cl@rock-chips.com>
Date:   Thu, 24 Aug 2017 10:37:01 +0800
From:   <cl@...k-chips.com>
To:     heiko@...ech.de
Cc:     robh+dt@...nel.org, mark.rutland@....com, catalin.marinas@....com,
        will.deacon@....com, shawnguo@...nel.org, rocky.hao@...k-chips.com,
        afaerber@...e.de, fabio.estevam@....com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        shawn.lin@...k-chips.com, kever.yang@...k-chips.com,
        rjw@...ysocki.net, viresh.kumar@...aro.org,
        linux-pm@...r.kernel.org, Liang Chen <cl@...k-chips.com>
Subject: [PATCH v2 1/3] arm64: dts: rockchip: add mmc nodes for rk3328 evaluation board

From: Liang Chen <cl@...k-chips.com>

Rockchip's rk3328 evaluation board has 3 mmc controllers for
sdio/sdmmc/emmc, let's enable them.

Signed-off-by: Liang Chen <cl@...k-chips.com>
---
 arch/arm64/boot/dts/rockchip/rk3328-evb.dts | 66 +++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3328-evb.dts b/arch/arm64/boot/dts/rockchip/rk3328-evb.dts
index 86605ae..30816c1 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328-evb.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3328-evb.dts
@@ -60,6 +60,20 @@
 		regulator-max-microvolt = <12000000>;
 	};
 
+	sdio_pwrseq: sdio-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		pinctrl-names = "default";
+		pinctrl-0 = <&wifi_enable_h>;
+
+		/*
+		 * On the module itself this is one of these (depending
+		 * on the actual card populated):
+		 * - SDIO_RESET_L_WL_REG_ON
+		 * - PDN (power down when low)
+		 */
+		reset-gpios = <&gpio1 18 GPIO_ACTIVE_LOW>;
+	};
+
 	vcc_sys: vcc-sys {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc_sys";
@@ -69,6 +83,26 @@
 		regulator-max-microvolt = <5000000>;
 		vin-supply = <&dc_12v>;
 	};
+
+	vcc_sd: sdmmc-regulator {
+		compatible = "regulator-fixed";
+		gpio = <&gpio0 30 GPIO_ACTIVE_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&sdmmc0m1_gpio>;
+		regulator-name = "vcc_sd";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&vcc_io>;
+	};
+};
+
+&emmc {
+	bus-width = <8>;
+	cap-mmc-highspeed;
+	non-removable;
+	pinctrl-names = "default";
+	pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_bus8>;
+	status = "okay";
 };
 
 &i2c1 {
@@ -186,6 +220,38 @@
 			rockchip,pins = <2 RK_PA6 RK_FUNC_GPIO &pcfg_pull_up>;
 		};
 	};
+
+	sdio-pwrseq {
+		wifi_enable_h: wifi-enable-h {
+		rockchip,pins =
+			<1 18 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+};
+
+&sdio {
+	bus-width = <4>;
+	cap-sd-highspeed;
+	cap-sdio-irq;
+	keep-power-in-suspend;
+	max-frequency = <150000000>;
+	mmc-pwrseq = <&sdio_pwrseq>;
+	non-removable;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdmmc1_bus4 &sdmmc1_cmd &sdmmc1_clk>;
+	status = "okay";
+};
+
+&sdmmc {
+	bus-width = <4>;
+	cap-mmc-highspeed;
+	cap-sd-highspeed;
+	disable-wp;
+	max-frequency = <150000000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdmmc0_clk &sdmmc0_cmd &sdmmc0_dectn &sdmmc0_bus4>;
+	vmmc-supply = <&vcc_sd>;
+	status = "okay";
 };
 
 &tsadc {
-- 
1.9.1