board: mediatek: Add support for UniElec U7623 board

This is an MT7623A-based board, very similar to the Banana Pi R2.

http://www.unielecinc.com/q/news/cn/p/product/detail.html?qd_guid=OjXwKCaRlN

Signed-off-by: David Woodhouse <dwmw2@infradead.org>

2 files changed, 212 insertions, 0 deletions

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index a3a1e3fbe4..caa7756c5d 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -949,6 +949,7 @@ dtb-$(CONFIG_SOC_K3_J721E) += k3-j721e-common-proc-board.dtb \
 
 dtb-$(CONFIG_ARCH_MEDIATEK) += \
 	mt7622-rfb.dtb \
+	mt7623a-unielec-u7623-02-emmc.dtb \
 	mt7623n-bananapi-bpi-r2.dtb \
 	mt7629-rfb.dtb \
 	mt8512-bm1-emmc.dtb \
diff --git a/arch/arm/dts/mt7623a-unielec-u7623-02-emmc.dts b/arch/arm/dts/mt7623a-unielec-u7623-02-emmc.dts
new file mode 100644
index 0000000000..fdeec75b05
--- /dev/null
+++ b/arch/arm/dts/mt7623a-unielec-u7623-02-emmc.dts
@@ -0,0 +1,211 @@
+/*
+ * Copyright (C) 2018 MediaTek Inc.
+ * Author: Ryder Lee <ryder.lee@mediatek.com>
+ *
+ * SPDX-License-Identifier: (GPL-2.0 OR MIT)
+ */
+
+/dts-v1/;
+#include "mt7623.dtsi"
+#include "mt7623-u-boot.dtsi"
+
+/ {
+	model = "UniElec U7623-02 eMMC";
+	compatible = "unielec,u7623-02-emmc", "mediatek,mt7623";
+
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0 0x80000000 0 0x20000000>;
+	};
+
+	chosen {
+		stdout-path = &uart2;
+		tick-timer = &timer0;
+	};
+
+	reg_1p8v: regulator-1p8v {
+		compatible = "regulator-fixed";
+		regulator-name = "fixed-1.8V";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	reg_3p3v: regulator-3p3v {
+		compatible = "regulator-fixed";
+		regulator-name = "fixed-3.3V";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	reg_5v: regulator-5v {
+		compatible = "regulator-fixed";
+		regulator-name = "fixed-5V";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led3 {
+			label = "u7623-01:green:led3";
+			gpios = <&gpio 14 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led4 {
+			label = "u7623-01:green:led4";
+			gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+	};
+};
+
+&eth {
+	status = "okay";
+	mediatek,gmac-id = <0>;
+	phy-mode = "rgmii";
+	mediatek,switch = "mt7530";
+	mediatek,mcm;
+
+	fixed-link {
+		speed = <1000>;
+		full-duplex;
+	};
+};
+
+&mmc0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc0_pins_default>;
+	status = "okay";
+	bus-width = <8>;
+	max-frequency = <50000000>;
+	cap-mmc-highspeed;
+	vmmc-supply = <&reg_3p3v>;
+	vqmmc-supply = <&reg_1p8v>;
+	non-removable;
+};
+
+&pinctrl {
+	ephy_default: ephy_default {
+		mux {
+			function = "eth";
+			groups = "mdc_mdio", "ephy";
+		};
+
+		conf {
+			pins = "G2_TXEN", "G2_TXD0", "G2_TXD1", "G2_TXD2",
+			       "G2_TXD3", "G2_TXC", "G2_RXC", "G2_RXD0",
+			       "G2_RXD1", "G2_RXD2", "G2_RXD3", "G2_RXDV",
+			       "MDC", "MDIO";
+			drive-strength = <12>;
+			mediatek,tdsel = <5>;
+		};
+	};
+
+	mmc0_pins_default: mmc0default {
+		mux {
+			function = "msdc";
+			groups =  "msdc0";
+		};
+
+		conf-cmd-data {
+			pins = "MSDC0_CMD", "MSDC0_DAT0", "MSDC0_DAT1",
+			       "MSDC0_DAT2", "MSDC0_DAT3", "MSDC0_DAT4",
+			       "MSDC0_DAT5", "MSDC0_DAT6", "MSDC0_DAT7";
+			input-enable;
+			bias-pull-up;
+		};
+
+		conf-clk {
+			pins = "MSDC0_CLK";
+			bias-pull-down;
+		};
+
+		conf-rst {
+			pins = "MSDC0_RSTB";
+			bias-pull-up;
+		};
+	};
+
+	pcie_default: pcie-default {
+		mux {
+			function = "pcie";
+			groups =  "pcie0_0_perst", "pcie1_0_perst";
+		};
+	};
+
+	uart0_pins_a: uart0-default {
+		mux {
+			function = "uart";
+			groups =  "uart0_0_txd_rxd";
+		};
+	};
+
+	uart1_pins_a: uart1-default {
+		mux {
+			function = "uart";
+			groups =  "uart1_0_txd_rxd";
+		};
+	};
+
+	uart2_pins_a: uart2-default {
+		mux {
+			function = "uart";
+			groups =  "uart2_0_txd_rxd";
+		};
+	};
+
+	uart2_pins_b: uart2-alt {
+		mux {
+			function = "uart";
+			groups =  "uart2_1_txd_rxd";
+		};
+	};
+};
+
+&pcie {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie_default>;
+	status = "okay";
+
+	pcie@0,0 {
+		status = "okay";
+	};
+
+	pcie@1,0 {
+		status = "okay";
+	};
+};
+
+&pcie0_phy {
+	status = "okay";
+};
+
+&pcie1_phy {
+	status = "okay";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pins_a>;
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart1_pins_a>;
+	status = "okay";
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart2_pins_b>;
+	status = "okay";
+};