bmips: add Huawei HG253s v2 support

Huawei HG253s v2 is a BCM6362 with 128M RAM, internal wifi and external
BCM53124S switch.
This device is already supported in bcm63xx target, so more information can be
found in https://openwrt.org/toh/huawei/hg253s_v2.

It's a perfect example of a device with internal and external switch
coexistance since most devices only have ports on one of the switches but not
both of them.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

target/linux/bmips/dts/bcm6362-huawei-hg253s-v2.dts

@@ -0,0 +1,241 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "bcm6362.dtsi"
+
+/ {
+	model = "Huawei HG253s v2";
+	compatible = "huawei,hg253s-v2", "brcm,bcm6362";
+
+	aliases {
+		led-boot = &led_phone_green;
+		led-failsafe = &led_phone_green;
+		led-upgrade = &led_phone_green;
+
+		led-internet = &led_internet_green;
+		led-usb = &led_usb_green;
+		led-wireless = &led_wireless_green;
+	};
+
+	keys {
+		compatible = "gpio-keys-polled";
+		poll-interval = <20>;
+
+		reset {
+			label = "reset";
+			gpios = <&gpio 24 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
+			debounce-interval = <60>;
+		};
+
+		wlan {
+			label = "wlan";
+			gpios = <&gpio 25 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WLAN>;
+			debounce-interval = <60>;
+		};
+
+		wps {
+			label = "wps";
+			gpios = <&gpio 26 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_WPS_BUTTON>;
+			debounce-interval = <60>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_phone_green: led@28 {
+			label = "green:phone";
+			gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
+		};
+
+		led_usb_green: led@30 {
+			label = "green:usb";
+			gpios = <&gpio 30 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&ehci {
+	status = "okay";
+};
+
+&ethernet {
+	status = "okay";
+
+	nvmem-cells = <&macaddr_cferom_6a0>;
+	nvmem-cell-names = "mac-address";
+};
+
+&leds {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_leds>;
+
+	led_internet_green: led@3 {
+		reg = <3>;
+		active-low;
+		label = "green:internet";
+	};
+
+	led_wireless_green: led@5 {
+		reg = <5>;
+		active-low;
+		label = "green:wifi";
+	};
+};
+
+&lsspi {
+	status = "okay";
+
+	switch@0 {
+		compatible = "brcm,bcm53125";
+		reg = <0>;
+		spi-max-frequency = <781000>;
+
+		dsa,member = <1 0>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@1 {
+				reg = <1>;
+				label = "lan4";
+			};
+
+			port@2 {
+				reg = <2>;
+				label = "lan3";
+			};
+
+			port@3 {
+				reg = <3>;
+				label = "lan2";
+			};
+
+			port@4 {
+				reg = <4>;
+				label = "lan1";
+			};
+
+			port@8 {
+				reg = <8>;
+				label = "cpu";
+
+				phy-mode = "rgmii";
+				ethernet = <&switch0port4>;
+
+				fixed-link {
+					speed = <1000>;
+					full-duplex;
+					asym-pause;
+					pause;
+				};
+			};
+		};
+	};
+};
+
+&mdio_ext {
+	phy24: ethernet-phy@18 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <24>;
+	};
+};
+
+&nflash {
+	status = "okay";
+
+	nandcs@0 {
+		compatible = "brcm,nandcs";
+		reg = <0>;
+		nand-ecc-step-size = <512>;
+		nand-ecc-strength = <15>;
+		nand-on-flash-bbt;
+		brcm,nand-oob-sector-size = <64>;
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			cferom: partition@0 {
+				label = "cferom";
+				reg = <0x0000000 0x0020000>;
+				read-only;
+			};
+
+			partition@20000 {
+				compatible = "brcm,wfi";
+				label = "wfi";
+				reg = <0x0020000 0x7d80000>;
+			};
+
+			partition@7da0000 {
+				label = "nvram";
+				reg = <0x7da0000 0x160000>;
+			};
+		};
+	};
+};
+
+&ohci {
+	status = "okay";
+};
+
+&pinctrl {
+	pinctrl_leds: leds {
+		function = "led";
+		pins = "gpio3", "gpio5";
+	};
+};
+
+&switch0 {
+	dsa,member = <0 0>;
+
+	ports {
+		switch0port4: port@4 {
+			reg = <4>;
+			label = "extsw";
+
+			phy-mode = "rgmii";
+
+			fixed-link {
+				speed = <1000>;
+				full-duplex;
+			};
+		};
+
+		port@5 {
+			reg = <5>;
+			label = "wan";
+
+			phy-handle = <&phy24>;
+			phy-mode = "rgmii-txid";
+		};
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&usbh {
+	status = "okay";
+};
+
+&cferom {
+	compatible = "nvmem-cells";
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	macaddr_cferom_6a0: macaddr@6a0 {
+		reg = <0x6a0 0x6>;
+	};
+};

target/linux/bmips/image/bcm63xx_nand.mk

@@ -63,6 +63,27 @@ define Device/comtrend_vr-3032u
 endef
 TARGET_DEVICES += comtrend_vr-3032u
 
+define Device/huawei_hg253s-v2
+  $(Device/bcm63xx-nand)
+  IMAGES := flash.bin sysupgrade.bin
+  IMAGE/flash.bin := append-kernel | pad-to $$$$(KERNEL_SIZE) | cfe-jffs2-cferam | append-ubi
+  DEVICE_VENDOR := Huawei
+  DEVICE_MODEL := HG253s
+  DEVICE_VARIANT := v2
+  CHIP_ID := 6362
+  CFE_PART_FLAGS := 1
+  CFE_PART_ID := 0x0001EFEE
+  CFE_RAM_FILE := huawei,hg253s-v2/cferam.000
+  CFE_RAM_JFFS2_NAME := cferam.000
+  BLOCKSIZE := 128k
+  PAGESIZE := 2048
+  SUBPAGESIZE := 512
+  VID_HDR_OFFSET := 2048
+  DEVICE_PACKAGES += $(USB2_PACKAGES)
+  CFE_WFI_FLASH_TYPE := 3
+endef
+TARGET_DEVICES += huawei_hg253s-v2
+
 define Device/netgear_dgnd3700-v2
   $(Device/bcm63xx-nand)
   DEVICE_VENDOR := NETGEAR

target/linux/bmips/nand/base-files/etc/board.d/02_network

@@ -9,6 +9,7 @@ comtrend,vr-3032u)
 	ucidef_set_bridge_device switch
 	ucidef_set_interface_lan "lan1 lan2 lan3 lan4"
 	;;
+huawei,hg253s-v2 |\
 netgear,dgnd3700-v2)
 	ucidef_set_bridge_device switch
 	ucidef_set_interfaces_lan_wan "lan1 lan2 lan3 lan4" "wan"

target/linux/bmips/nand/base-files/lib/upgrade/platform.sh

@@ -46,6 +46,7 @@ cfe_jffs2_nand_upgrade() {
 platform_do_upgrade() {
 	case "$(board_name)" in
 		comtrend,vr-3032u|\
+		huawei,hg253s-v2|\
 		netgear,dgnd3700-v2)
 			cfe_jffs2_nand_upgrade "$1"
 			;;