mediatke: add support for elecom-wrc-2533gent

This commit adds support for the MT7622-based Elecom WRC-2533gent router,
with spi-nand storage and 512MB RAM.

The device has the following specifications:

* MT7622 (arm64 dual-core)
* 512MB RAM (DDR3)
* 4GB storage (spi-nand)
* 5x 1Gbps Ethernet (RTL8337C switch)
* 1x UART header
* 1x USB 3.0 port
* 5x LEDs
* 1x reset button
* 1x WPS button
* 1x slider switch
* 1x DC jack for main power (12V)

The following has been tested and is working:
* Ethernet switch
* 2.4g and 5g wifi
* USB 3.0 port
* sysupgrade
* buttons/leds

Not working:
* bluetooth firmware does not load even though it is present int he rootfs

Signed-off-by: John Crispin <john@phrozen.org>

1 files changed, 612 insertions, 0 deletions

diff --git a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7622-elecom-wrc-2533gent.dts b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7622-elecom-wrc-2533gent.dts
new file mode 100644
index 0000000000..7a5814e3f6
--- /dev/null
+++ b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7622-elecom-wrc-2533gent.dts
@@ -0,0 +1,612 @@
+/*
+ * Copyright (c) 2017 MediaTek Inc.
+ * Author: Ming Huang <ming.huang@mediatek.com>
+ *	   Sean Wang <sean.wang@mediatek.com>
+ *
+ * SPDX-License-Identifier: (GPL-2.0 OR MIT)
+ */
+
+/dts-v1/;
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/gpio/gpio.h>
+
+#include "mt7622.dtsi"
+#include "mt6380.dtsi"
+
+/ {
+	model = "Elecom WRC-2533";
+	compatible = "elecom,wrc-2533gent", "mediatek,mt7622";
+
+	aliases {
+		led-boot = &led_power;
+		led-failsafe = &led_power;
+		led-running = &led_power;
+		led-upgrade = &led_power;
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+		bootargs = "earlycon=uart8250,mmio32,0x11002000 swiotlb=512 console=ttyS0,115200n8";
+	};
+
+	cpus {
+		cpu@0 {
+			proc-supply = <&mt6380_vcpu_reg>;
+			sram-supply = <&mt6380_vm_reg>;
+		};
+
+		cpu@1 {
+			proc-supply = <&mt6380_vcpu_reg>;
+			sram-supply = <&mt6380_vm_reg>;
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		poll-interval = <100>;
+
+		wps {
+			label = "wps";
+			linux,code = <KEY_WPS_BUTTON>;
+			gpios = <&pio 0 GPIO_ACTIVE_HIGH>;
+		};
+
+		factory {
+			label = "factory";
+			linux,code = <KEY_WPS_BUTTON>;
+			gpios = <&pio 102 GPIO_ACTIVE_LOW>;
+		};
+
+		switch0 {
+			label = "switch0";
+			gpios = <&pio 1 GPIO_ACTIVE_LOW>;
+			linux,code = <BTN_0>;
+			linux,input-type = <EV_SW>;
+		};
+
+		switch1 {
+			label = "switch1";
+			gpios = <&pio 16 GPIO_ACTIVE_LOW>;
+			linux,code = <BTN_1>;
+			linux,input-type = <EV_SW>;
+		};
+
+		switch2 {
+			label = "switch2";
+			gpios = <&pio 17 GPIO_ACTIVE_LOW>;
+			linux,code = <BTN_2>;
+			linux,input-type = <EV_SW>;
+		};
+
+		switch3 {
+			label = "switch3";
+			gpios = <&pio 18 GPIO_ACTIVE_LOW>;
+			linux,code = <BTN_3>;
+			linux,input-type = <EV_SW>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_power: power_g {
+			label = "wrc-2533:green:power";
+			gpios = <&pio 2 GPIO_ACTIVE_HIGH>;
+		};
+
+		power_b {
+			label = "wrc-2533:blue:power";
+			gpios = <&pio 19 GPIO_ACTIVE_HIGH>;
+		};
+
+		power_r {
+			label = "wrc-2533:red:power";
+			gpios = <&pio 73 GPIO_ACTIVE_HIGH>;
+		};
+
+		usb {
+			label = "wrc-2533:blue:usb";
+			gpios = <&pio 74 GPIO_ACTIVE_HIGH>;
+		};
+
+		wps {
+			label = "wrc-2533:red:wps";
+			gpios = <&pio 76 GPIO_ACTIVE_LOW>;
+		};
+
+		wifi2 {
+			label = "wrc-2533:blue:wifi2g";
+			gpios = <&pio 85 GPIO_ACTIVE_LOW>;
+		};
+
+		wifi5 {
+			label = "wrc-2533:blue:wifi5g";
+			gpios = <&pio 91 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	reg_usb_vbus: regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "usb_vbus";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		gpio = <&pio 22 GPIO_ACTIVE_LOW>;
+		enable-active-high;
+	};
+
+	memory {
+		reg = <0 0x40000000 0 0x3F000000>;
+	};
+
+	reg_1p8v: regulator-1p8v {
+		compatible = "regulator-fixed";
+		regulator-name = "fixed-1.8V";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		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;
+	};
+
+        rtkgsw: rtkgsw@0 {
+                compatible = "mediatek,rtk-gsw";
+		mediatek,ethsys = <&ethsys>;
+                mediatek,mdio = <&mdio>;
+                mediatek,reset-pin = <&pio 54 0>;
+                status = "okay";
+        };
+};
+
+&pcie {
+	pinctrl-names = "default", "pcie1_pins";
+	pinctrl-0 = <&pcie0_pins>;
+	pinctrl-1 = <&pcie1_pins>;
+	status = "okay";
+
+	pcie@0,0 {
+		status = "okay";
+		mt7615@0,0 {
+			reg = <0x0000 0 0 0 0>;
+			mediatek,mtd-eeprom = <&factory 0x05000>;
+		};
+	};
+
+	pcie@1,0 {
+		status = "okay";
+	};
+};
+
+&pio {
+	/* eMMC is shared pin with parallel NAND */
+	emmc_pins_default: emmc-pins-default {
+		mux {
+			function = "emmc", "emmc_rst";
+			groups = "emmc";
+		};
+
+		/* "NDL0","NDL1","NDL2","NDL3","NDL4","NDL5","NDL6","NDL7",
+		 * "NRB","NCLE" pins are used as DAT0,DAT1,DAT2,DAT3,DAT4,
+		 * DAT5,DAT6,DAT7,CMD,CLK for eMMC respectively
+		 */
+		conf-cmd-dat {
+			pins = "NDL0", "NDL1", "NDL2",
+			       "NDL3", "NDL4", "NDL5",
+			       "NDL6", "NDL7", "NRB";
+			input-enable;
+			bias-pull-up;
+		};
+
+		conf-clk {
+			pins = "NCLE";
+			bias-pull-down;
+		};
+	};
+
+	emmc_pins_uhs: emmc-pins-uhs {
+		mux {
+			function = "emmc";
+			groups = "emmc";
+		};
+
+		conf-cmd-dat {
+			pins = "NDL0", "NDL1", "NDL2",
+			       "NDL3", "NDL4", "NDL5",
+			       "NDL6", "NDL7", "NRB";
+			input-enable;
+			drive-strength = <4>;
+			bias-pull-up;
+		};
+
+		conf-clk {
+			pins = "NCLE";
+			drive-strength = <4>;
+			bias-pull-down;
+		};
+	};
+
+	eth_pins: eth-pins {
+		mux {
+			function = "eth";
+			groups = "mdc_mdio", "rgmii_via_gmac2";
+		};
+	};
+
+	i2c1_pins: i2c1-pins {
+		mux {
+			function = "i2c";
+			groups =  "i2c1_0";
+		};
+	};
+
+	i2c2_pins: i2c2-pins {
+		mux {
+			function = "i2c";
+			groups =  "i2c2_0";
+		};
+	};
+
+	i2s1_pins: i2s1-pins {
+		mux {
+			function = "i2s";
+			groups =  "i2s_out_mclk_bclk_ws",
+				  "i2s1_in_data",
+				  "i2s1_out_data";
+		};
+
+		conf {
+			pins = "I2S1_IN", "I2S1_OUT", "I2S_BCLK",
+			       "I2S_WS", "I2S_MCLK";
+			drive-strength = <12>;
+			bias-pull-down;
+		};
+	};
+
+	irrx_pins: irrx-pins {
+		mux {
+			function = "ir";
+			groups =  "ir_1_rx";
+		};
+	};
+
+	irtx_pins: irtx-pins {
+		mux {
+			function = "ir";
+			groups =  "ir_1_tx";
+		};
+	};
+
+	/* Parallel nand is shared pin with eMMC */
+	parallel_nand_pins: parallel-nand-pins {
+		mux {
+			function = "flash";
+			groups = "par_nand";
+		};
+	};
+
+	pcie0_pins: pcie0-pins {
+		mux {
+			function = "pcie";
+			groups = "pcie0_pad_perst",
+				 "pcie0_1_waken",
+				 "pcie0_1_clkreq";
+		};
+	};
+
+	pcie1_pins: pcie1-pins {
+		mux {
+			function = "pcie";
+			groups = "pcie1_pad_perst",
+				 "pcie1_0_waken",
+				 "pcie1_0_clkreq";
+		};
+	};
+
+	pmic_bus_pins: pmic-bus-pins {
+		mux {
+			function = "pmic";
+			groups = "pmic_bus";
+		};
+	};
+
+	pwm7_pins: pwm1-2-pins {
+		mux {
+			function = "pwm";
+			groups = "pwm_ch7_2";
+		};
+	};
+
+	wled_pins: wled-pins {
+		mux {
+			function = "led";
+			groups = "wled";
+		};
+	};
+
+	sd0_pins_default: sd0-pins-default {
+		mux {
+			function = "sd";
+			groups = "sd_0";
+		};
+
+		/* "I2S2_OUT, "I2S4_IN"", "I2S3_IN", "I2S2_IN",
+		 *  "I2S4_OUT", "I2S3_OUT" are used as DAT0, DAT1,
+		 *  DAT2, DAT3, CMD, CLK for SD respectively.
+		 */
+		conf-cmd-data {
+			pins = "I2S2_OUT", "I2S4_IN", "I2S3_IN",
+			       "I2S2_IN","I2S4_OUT";
+			input-enable;
+			drive-strength = <8>;
+			bias-pull-up;
+		};
+		conf-clk {
+			pins = "I2S3_OUT";
+			drive-strength = <12>;
+			bias-pull-down;
+		};
+		conf-cd {
+			pins = "TXD3";
+			bias-pull-up;
+		};
+	};
+
+	sd0_pins_uhs: sd0-pins-uhs {
+		mux {
+			function = "sd";
+			groups = "sd_0";
+		};
+
+		conf-cmd-data {
+			pins = "I2S2_OUT", "I2S4_IN", "I2S3_IN",
+			       "I2S2_IN","I2S4_OUT";
+			input-enable;
+			bias-pull-up;
+		};
+
+		conf-clk {
+			pins = "I2S3_OUT";
+			bias-pull-down;
+		};
+	};
+
+	/* Serial NAND is shared pin with SPI-NOR */
+	serial_nand_pins: serial-nand-pins {
+		mux {
+			function = "flash";
+			groups = "snfi";
+		};
+	};
+
+	spic0_pins: spic0-pins {
+		mux {
+			function = "spi";
+			groups = "spic0_0";
+		};
+	};
+
+	spic1_pins: spic1-pins {
+		mux {
+			function = "spi";
+			groups = "spic1_0";
+		};
+	};
+
+	/* SPI-NOR is shared pin with serial NAND */
+	spi_nor_pins: spi-nor-pins {
+		mux {
+			function = "flash";
+			groups = "spi_nor";
+		};
+	};
+
+	/* serial NAND is shared pin with SPI-NOR */
+	serial_nand_pins: serial-nand-pins {
+		mux {
+			function = "flash";
+			groups = "snfi";
+		};
+	};
+
+	uart0_pins: uart0-pins {
+		mux {
+			function = "uart";
+			groups = "uart0_0_tx_rx" ;
+		};
+	};
+
+	uart2_pins: uart2-pins {
+		mux {
+			function = "uart";
+			groups = "uart2_1_tx_rx" ;
+		};
+	};
+
+	watchdog_pins: watchdog-pins {
+		mux {
+			function = "watchdog";
+			groups = "watchdog";
+		};
+	};
+};
+
+&bch {
+	status = "okay";
+};
+
+&btif {
+	status = "okay";
+};
+
+&cir {
+	pinctrl-names = "default";
+	pinctrl-0 = <&irrx_pins>;
+	status = "okay";
+};
+
+&eth {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&eth_pins>;
+	gmac0: mac@0 {
+                compatible = "mediatek,eth-mac";
+                reg = <0>;
+                phy-mode = "sgmii";
+                fixed-link {
+                        speed = <1000>;
+                        full-duplex;
+                        pause;
+                };
+        };
+        gmac1: mac@1 {
+                compatible = "mediatek,eth-mac";
+                reg = <1>;
+                phy-mode = "rgmii";
+                fixed-link {
+                        speed = <1000>;
+                        full-duplex;
+                        pause;
+                };
+        };
+        mdio: mdio-bus {
+                #address-cells = <1>;
+                #size-cells = <0>;
+        };
+};
+
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins>;
+	status = "okay";
+};
+
+&i2c2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c2_pins>;
+	status = "okay";
+};
+
+&pwm {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm7_pins>;
+	status = "okay";
+};
+
+&pwrap {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pmic_bus_pins>;
+
+	status = "okay";
+};
+
+&snfi {
+	pinctrl-names = "default";
+	pinctrl-0 = <&serial_nand_pins>;
+	status = "okay";
+
+	spi_nand@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "spi-nand";
+		spi-max-frequency = <104000000>;
+		reg = <0>;
+
+		partitions {
+                        compatible = "fixed-partitions";
+                        #address-cells = <1>;
+                        #size-cells = <1>;
+
+                        partition@0 {
+                                label = "Preloader";
+                                reg = <0x00000 0x0080000>;
+                                read-only;
+                        };
+
+                        partition@80000 {
+                                label = "ATF";
+                                reg = <0x80000 0x0040000>;
+                                read-only;
+                        };
+
+                        partition@c0000 {
+                                label = "uboot";
+                                reg = <0xc0000 0x0080000>;
+                                read-only;
+                        };
+
+                        partition@140000 {
+                                label = "uboot-env";
+                                reg = <0x140000 0x0080000>;
+                                read-only;
+                        };
+
+                        factory: partition@1c0000 {
+                                label = "factory";
+                                reg = <0x1c0000 0x0040000>;
+                                read-only;
+                        };
+
+                        partition@200000 {
+                                label = "Kernel";
+                                reg = <0x200000 0x2000000>;
+                        };
+
+                        partition@2200000 {
+                                label = "reserved";
+                                reg = <0x2200000 0x4000000>;
+                        };
+                };
+	};
+};
+
+&spi0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spic0_pins>;
+	status = "okay";
+};
+
+&spi1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spic1_pins>;
+	status = "okay";
+};
+
+&ssusb {
+	vusb33-supply = <&reg_3p3v>;
+	vbus-supply = <&reg_usb_vbus>;
+	status = "okay";
+};
+
+&u3phy {
+	status = "okay";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pins>;
+	status = "okay";
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart2_pins>;
+	status = "okay";
+};
+
+&watchdog {
+	pinctrl-names = "default";
+	pinctrl-0 = <&watchdog_pins>;
+	status = "okay";
+};
+
+&wmac {
+	mediatek,mtd-eeprom = <&factory 0x0000>;
+	status = "okay";
+};