ARM: dts: rockchip: Add SDIO0 node for VMARC SOM

Rockchip RK3288 and RK3399Pro based VMARC SOM has sdio0 for
connecting WiFi/BT devices as a pluggable card via M.2 E-Key.

Add associated sdio0 nodes, properties.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Link: https://lore.kernel.org/r/20201023181814.220974-2-jagan@amarulasolutions.com
[moved the unrelated rtc addition to a separate patch]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm/boot/dts/rk3288-vmarc-som.dtsi

@@ -258,6 +258,7 @@
 	gpio1830-supply = <&vcc_18>;
 	gpio30-supply = <&vcc_io>;
 	sdcard-supply = <&vccio_sd>;
+	wifi-supply = <&vcc_wl>;
 	status = "okay";
 };
 
@@ -283,6 +284,12 @@
 		};
 	};
 
+	sdio-pwrseq {
+		wifi_enable_h: wifi-enable-h {
+			rockchip,pins = <4 RK_PD4 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
 	sdmmc {
 		sdmmc_bus4: sdmmc-bus4 {
 			rockchip,pins =
@@ -314,6 +321,16 @@
 	};
 };
 
+&sdio_pwrseq {
+	/*
+	 * 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 = <&gpio4 RK_PD4 GPIO_ACTIVE_LOW>;	/* WIFI_REG_ON */
+};
+
 &usbphy {
 	status = "okay";
 };

arch/arm/boot/dts/rockchip-radxa-dalang-carrier.dtsi

@@ -15,6 +15,14 @@
 		#clock-cells = <0>;
 	};
 
+	sdio_pwrseq: sdio-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		clocks = <&hym8563>;
+		clock-names = "ext_clock";
+		pinctrl-names = "default";
+		pinctrl-0 = <&wifi_enable_h>;
+	};
+
 	vcc12v_dcin: vcc12v-dcin-regulator {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc12v_dcin";
@@ -78,6 +86,19 @@
 	status = "okay";
 };
 
+&sdio0 {
+	bus-width = <4>;
+	cap-sd-highspeed;
+	cap-sdio-irq;
+	keep-power-in-suspend;
+	mmc-pwrseq = <&sdio_pwrseq>;
+	non-removable;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdio0_bus4 &sdio0_cmd &sdio0_clk>;
+	sd-uhs-sdr104;
+	status = "okay";
+};
+
 &sdmmc {
 	bus-width = <4>;
 	cap-mmc-highspeed;

arch/arm64/boot/dts/rockchip/rk3399pro-vmarc-som.dtsi

@@ -353,6 +353,12 @@
 		};
 	};
 
+	sdio-pwrseq {
+		wifi_enable_h: wifi-enable-h {
+			rockchip,pins = <2 RK_PD3 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
 	vbus_host {
 		usb1_en_oc: usb1-en-oc {
 			rockchip,pins = <4 RK_PD1 RK_FUNC_GPIO &pcfg_pull_up>;
@@ -371,6 +377,16 @@
 	pmu1830-supply = <&vcc_1v8>;
 };
 
+&sdio_pwrseq {
+	/*
+	 * 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 = <&gpio2 RK_PD3 GPIO_ACTIVE_LOW>;
+};
+
 &sdhci {
 	bus-width = <8>;
 	mmc-hs400-1_8v;