add support for redmi-ax6000

Note: IP address for stock uboot-env is 192.168.31.1

atf-20220606-637ba581b/configs/mt7986_redmi_ax6000_defconfig

@@ -0,0 +1,4 @@
+CONFIG_PLAT_MT7986=y
+CONFIG_TARGET_ALL_NO_SEC_BOOT=y
+CONFIG_FLASH_DEVICE_SPIM_NAND=y
+CONFIG_DRAM_DDR4=y

uboot-mtk-20220606/arch/arm/dts/mt7986a-redmi-ax6000.dts

@@ -0,0 +1,98 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/dts-v1/;
+#include "mt7986.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	model = "mt7986-redmi-ax6000";
+	compatible = "mediatek,mt7986", "mediatek,mt7986-rfb";
+
+	chosen {
+		stdout-path = &uart0;
+		tick-timer = &timer0;
+	};
+
+	config {
+		bootcmd = "mtkboardboot";
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		reset-button {
+			label = "reset";
+			gpios = <&gpio 9 GPIO_ACTIVE_LOW>;
+		};
+
+		mesh-button {
+			label = "mesh";
+			gpios = <&gpio 10 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&eth {
+	status = "okay";
+	mediatek,gmac-id = <0>;
+	phy-mode = "sgmii";
+	mediatek,switch = "mt7531";
+	reset-gpios = <&gpio 5 GPIO_ACTIVE_HIGH>;
+
+	fixed-link {
+		speed = <1000>;
+		full-duplex;
+	};
+};
+
+&pinctrl {
+	spi_flash_pins: spi0-pins-func-1 {
+		mux {
+			function = "flash";
+			groups = "spi0", "spi0_wp_hold";
+		};
+
+		conf-pu {
+			pins = "SPI2_CS", "SPI2_HOLD", "SPI2_WP";
+			drive-strength = <MTK_DRIVE_8mA>;
+			bias-pull-up = <MTK_PUPD_SET_R1R0_11>;
+		};
+
+		conf-pd {
+			pins = "SPI2_CLK", "SPI2_MOSI", "SPI2_MISO";
+			drive-strength = <MTK_DRIVE_8mA>;
+			bias-pull-down = <MTK_PUPD_SET_R1R0_11>;
+		};
+	};
+};
+
+&spi0 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi_flash_pins>;
+	status = "okay";
+	must_tx;
+	enhance_timing;
+	dma_ext;
+	ipm_design;
+	support_quad;
+	tick_dly = <2>;
+	sample_sel = <0>;
+
+	spi_nand@0 {
+		compatible = "spi-nand";
+		reg = <0>;
+		spi-max-frequency = <52000000>;
+	};
+};
+
+&watchdog {
+	status = "disabled";
+};

uboot-mtk-20220606/configs/mt7986_redmi_ax6000_defconfig

@@ -0,0 +1,96 @@
+CONFIG_ARM=y
+CONFIG_POSITION_INDEPENDENT=y
+CONFIG_ARCH_MEDIATEK=y
+CONFIG_SYS_TEXT_BASE=0x41e00000
+CONFIG_SYS_MALLOC_F_LEN=0x4000
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_ENV_SIZE=0x10000
+CONFIG_ENV_OFFSET=0x100000
+CONFIG_DEFAULT_DEVICE_TREE="mt7986a-redmi-ax6000"
+CONFIG_TARGET_MT7986=y
+CONFIG_ENABLE_NAND_NMBM=y
+CONFIG_MEDIATEK_BOOTMENU=y
+CONFIG_MEDIATEK_BOOTMENU_DELAY=3
+CONFIG_MT7986_BOOTMENU_UBI=y
+CONFIG_DEBUG_UART_BASE=0x11002000
+CONFIG_DEBUG_UART_CLOCK=40000000
+CONFIG_SYS_LOAD_ADDR=0x46000000
+CONFIG_DEBUG_UART=y
+CONFIG_SYS_MEMTEST_START=0x40000000
+CONFIG_SYS_MEMTEST_END=0x41000000
+CONFIG_AUTOBOOT_MENU_SHOW=y
+CONFIG_AUTOBOOT_MENU_MTK_SHOW=y
+CONFIG_DEFAULT_FDT_FILE="mt7986a-rfb"
+CONFIG_LOGLEVEL=7
+CONFIG_LOG=y
+CONFIG_POLLER=y
+CONFIG_HUSH_PARSER=y
+CONFIG_SYS_PROMPT="MT7986> "
+# CONFIG_BOOTM_NETBSD is not set
+# CONFIG_BOOTM_PLAN9 is not set
+# CONFIG_BOOTM_RTEMS is not set
+# CONFIG_BOOTM_VXWORKS is not set
+# CONFIG_CMD_ELF is not set
+CONFIG_CMD_MEMINFO=y
+CONFIG_CMD_MEMTEST=y
+CONFIG_CMD_DM=y
+# CONFIG_CMD_FLASH is not set
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_GPIO_READ=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_MTD=y
+CONFIG_CMD_NMBM=y
+CONFIG_CMD_PCI=y
+CONFIG_CMD_TFTPPUT=y
+# CONFIG_CMD_NFS is not set
+CONFIG_CMD_PING=y
+CONFIG_CMD_LED_BLINK=y
+CONFIG_CMD_SMC=y
+CONFIG_CMD_MTDPARTS=y
+CONFIG_MTDIDS_DEFAULT="nmbm0=nmbm0"
+CONFIG_MTDPARTS_DEFAULT="nmbm0:1024k(bl2),256k(Nvram),256k(Bdata),2048k(factory),2048k(fip),256k(crash),256k(crash_log),112640k(ubi)"
+CONFIG_CMD_UBI=y
+CONFIG_CMD_GL_BTN=y
+CONFIG_DOS_PARTITION=y
+CONFIG_EFI_PARTITION=y
+CONFIG_PARTITION_TYPE_GUID=y
+CONFIG_OF_EMBED=y
+CONFIG_ENV_OVERWRITE=y
+CONFIG_ENV_IS_IN_MTD=y
+CONFIG_ENV_MTD_NAME="nmbm0"
+CONFIG_ENV_SIZE_REDUND=0x80000
+CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
+CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_REGMAP=y
+CONFIG_SYSCON=y
+CONFIG_BUTTON=y
+CONFIG_BUTTON_GPIO=y
+CONFIG_CLK=y
+# CONFIG_I2C is not set
+CONFIG_LED=y
+CONFIG_LED_BLINK=y
+CONFIG_LED_GPIO=y
+CONFIG_MMC_HS200_SUPPORT=y
+CONFIG_MMC_MTK=y
+CONFIG_DM_MTD=y
+CONFIG_MTD_SPI_NAND=y
+CONFIG_PHY_FIXED=y
+CONFIG_DM_ETH=y
+CONFIG_MEDIATEK_ETH=y
+CONFIG_PCI=y
+CONFIG_PCIE_MEDIATEK=y
+CONFIG_PINCTRL=y
+CONFIG_PINCONF=y
+CONFIG_PINCTRL_MT7986=y
+CONFIG_POWER_DOMAIN=y
+CONFIG_MTK_POWER_DOMAIN=y
+CONFIG_DM_REGULATOR=y
+CONFIG_DM_REGULATOR_FIXED=y
+CONFIG_DM_SERIAL=y
+CONFIG_MTK_SERIAL=y
+CONFIG_SPI=y
+CONFIG_DM_SPI=y
+CONFIG_MTK_SPIM=y
+CONFIG_HEXDUMP=y
+# CONFIG_EFI_LOADER is not set
+CONFIG_WEBUI_FAILSAFE=y