linux-kernel - [PATCH v2 1/3] arm64: dts: meson-g12a-x96-max: add support for sdcard and emmc

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Message-Id: <20190607144735.3829-2-narmstrong@baylibre.com>
Date:   Fri,  7 Jun 2019 16:47:33 +0200
From:   Neil Armstrong <narmstrong@...libre.com>
To:     khilman@...libre.com
Cc:     linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Guillaume La Roque <glaroque@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Neil Armstrong <narmstrong@...libre.com>
Subject: [PATCH v2 1/3] arm64: dts: meson-g12a-x96-max: add support for sdcard and emmc

From: Guillaume La Roque <glaroque@...libre.com>

Add nodes to support SDCard and onboard eMMC on the X96 Max.

Signed-off-by: Guillaume La Roque <glaroque@...libre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
---
 .../boot/dts/amlogic/meson-g12a-x96-max.dts   | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a-x96-max.dts b/arch/arm64/boot/dts/amlogic/meson-g12a-x96-max.dts
index 5cdc263b03e6..69aae6c03dc5 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12a-x96-max.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-g12a-x96-max.dts
@@ -45,6 +45,11 @@
 		};
 	};
 
+	emmc_pwrseq: emmc-pwrseq {
+		compatible = "mmc-pwrseq-emmc";
+		reset-gpios = <&gpio BOOT_12 GPIO_ACTIVE_LOW>;
+	};
+
 	flash_1v8: regulator-flash_1v8 {
 		compatible = "regulator-fixed";
 		regulator-name = "FLASH_1V8";
@@ -172,3 +177,38 @@
 	status = "okay";
 	dr_mode = "host";
 };
+
+/* SD card */
+&sd_emmc_b {
+	status = "okay";
+	pinctrl-0 = <&sdcard_c_pins>;
+	pinctrl-1 = <&sdcard_clk_gate_c_pins>;
+	pinctrl-names = "default", "clk-gate";
+
+	bus-width = <4>;
+	cap-sd-highspeed;
+	max-frequency = <100000000>;
+	disable-wp;
+
+	cd-gpios = <&gpio GPIOC_6 GPIO_ACTIVE_LOW>;
+	vmmc-supply = <&vddao_3v3>;
+	vqmmc-supply = <&vddao_3v3>;
+};
+
+/* eMMC */
+&sd_emmc_c {
+	status = "okay";
+	pinctrl-0 = <&emmc_pins>, <&emmc_ds_pins>;
+	pinctrl-1 = <&emmc_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
+
+	bus-width = <8>;
+	cap-mmc-highspeed;
+	max-frequency = <100000000>;
+	non-removable;
+	disable-wp;
+
+	mmc-pwrseq = <&emmc_pwrseq>;
+	vmmc-supply = <&vcc_3v3>;
+	vqmmc-supply = <&flash_1v8>;
+};
-- 
2.21.0