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ee8df790ca
This commit adds OpenWrt U-Boot (UBI) layout support for MERCUSYS MR90X v1. Stock U-Boot UBI size: 50 MiB OpenWrt U-boot UBI size: 126 MiB Install ------- 1. Perform steps 1-14 of the OpenWrt installation guide (use OpenWrt initramfs-recovery.itb instead of initramfs-kernel.bin at the step 10, 12 and 14). Link: https://openwrt.org/toh/mercusys/mr90x_v1#installation 2. Make backups: ``` cat /dev/mtd0 > /tmp/boot.bin cat /dev/mtd5 > /tmp/tp_data.bin ``` Copy /tp_data dir content, /tmp/boot.bin and /tmp/tp_data.bin and to your PC using scp. You can also backup the remaining partititons. Copy backups to a safe place, they are required for the next steps and stock firmware recovery. 3. Reboot to OpenWrt initramfs: ``` reboot ``` 4. Copy OpenWrt ubi-bl31-uboot.fip, ubi-preloader.bin, ubi-squashfs-sysupgrade.itb and MT7986_EEPROM.bin, default-mac (from /tp_data backup) to the /tmp folder of the router using scp. 5. Prepare UBI: ``` ubidetach -p /dev/mtd3; ubiformat /dev/mtd3 -y; ubiattach -p /dev/mtd3 ubimkvol /dev/ubi0 -N fip -t static -s 1MiB ubiupdatevol /dev/ubi0_0 /tmp/ubi-bl31-uboot.fip ubimkvol /dev/ubi0 -N ubootenv -s 0x1f000 ubimkvol /dev/ubi0 -N ubootenv2 -s 0x1f000 ``` 6. Install kmod-mtd-rw and unlock partitions: ``` opkg update && opkg install kmod-mtd-rw insmod mtd-rw i_want_a_brick=1 mtd unlock boot mtd unlock bl2 mtd unlock factory ``` 7. Prepare "factory" partition: ``` dd if=/dev/zero bs=$((0x8000)) count=1 | tr '\000' '\377' > /tmp/factory.bin dd if=/tmp/MT7986_EEPROM.bin of=/tmp/factory.bin conv=notrunc dd if=/tmp/default-mac >> /tmp/factory.bin ``` 8. Write "factory" partition: ``` mtd erase factory mtd write /tmp/factory.bin factory ``` 9. Write preloader partition: ``` mtd erase bl2 mtd write /tmp/ubi-preloader.bin bl2 ``` 10. Write OpenWrt sysupgrade image: ``` sysupgrade -n /tmp/ubi-squashfs-sysupgrade.itb ``` Recovery -------- 1. Place OpenWrt initramfs-recovery.itb image (with original name) on the tftp server (IP: 192.168.1.254). 2. Press "reset" button and power on the router. After ~10 sec release the button. 3. Use OpenWrt initramfs system for recovery. BL2 and FIP recovery -------------------- Use mtk_uartboot and UART connetion if BL2 or FIP in UBI is destroyed: Link: https://github.com/981213/mtk_uartboot Link: https://openwrt.org/toh/mercusys/mr90x_v1#serial Return to stock: ---------------- 1. Copy "boot" partition backup (boot.bin) to the /tmp dir of the router using scp. 2. Install kmod-mtd-rw: ``` opkg update && opkg install kmod-mtd-rw ``` 3. Restore stock U-Boot: ``` insmod mtd-rw i_want_a_brick=1 mtd unlock boot mtd erase boot mtd write /tmp/boot.bin boot ``` 4. Erase UBI and reboot: ``` mtd erase ubi reboot ``` 5. Open U-Boot web recovery, upload stock firmware image and start upgrade. Link: http://192.168.1.1 6. Complete steps 1-9 of the OpenWrt installation guide to get root rights. Link: https://openwrt.org/toh/mercusys/mr90x_v1#installation 7. Upload "tp_data" partition backup (tp_data.bin) to the /tmp folder of the router using scp. 8. Restore stock calibrations: ``` mtd write /tmp/tp_data.bin tp_data reboot ``` 9. Perform "factory restore" via stock firmware web interface. Signed-off-by: Mikhail Zhilkin <csharper2005@gmail.com> Link: https://github.com/openwrt/openwrt/pull/16744 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
253 lines
4.3 KiB
Plaintext
253 lines
4.3 KiB
Plaintext
// SPDX-License-Identifier: (GL-2.0 OR MIT)
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/dts-v1/;
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#include <dt-bindings/input/input.h>
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/leds/common.h>
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#include "mt7986b.dtsi"
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/ {
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aliases: aliases {
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led-boot = &led_status_green;
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led-failsafe = &led_status_green;
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led-running = &led_status_green;
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led-upgrade = &led_status_green;
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serial0 = &uart0;
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};
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chosen: chosen {
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stdout-path = "serial0:115200n8";
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};
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memory {
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reg = <0 0x40000000 0 0x20000000>;
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};
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keys {
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compatible = "gpio-keys";
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reset {
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label = "reset";
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gpios = <&pio 10 GPIO_ACTIVE_LOW>;
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linux,code = <KEY_RESTART>;
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};
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};
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leds {
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compatible = "gpio-leds";
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led-0 {
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color = <LED_COLOR_ID_GREEN>;
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function = LED_FUNCTION_LAN;
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function-enumerator = <2>;
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gpios = <&pio 7 GPIO_ACTIVE_LOW>;
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};
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led-1 {
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color = <LED_COLOR_ID_GREEN>;
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function = LED_FUNCTION_LAN;
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function-enumerator = <1>;
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gpios = <&pio 9 GPIO_ACTIVE_LOW>;
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};
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led-2 {
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color = <LED_COLOR_ID_GREEN>;
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function = LED_FUNCTION_LAN;
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function-enumerator = <0>;
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gpios = <&pio 12 GPIO_ACTIVE_LOW>;
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};
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led-3 {
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color = <LED_COLOR_ID_GREEN>;
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function = LED_FUNCTION_WAN;
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gpios = <&pio 13 GPIO_ACTIVE_LOW>;
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};
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led-4 {
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color = <LED_COLOR_ID_AMBER>;
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function = LED_FUNCTION_STATUS;
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gpios = <&pio 16 GPIO_ACTIVE_HIGH>;
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panic-indicator;
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};
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led_status_green: led-5 {
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color = <LED_COLOR_ID_GREEN>;
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function = LED_FUNCTION_STATUS;
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gpios = <&pio 17 GPIO_ACTIVE_HIGH>;
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};
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};
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};
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&crypto {
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status = "okay";
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};
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ð {
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status = "okay";
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gmac0: mac@0 {
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compatible = "mediatek,eth-mac";
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reg = <0>;
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phy-mode = "2500base-x";
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fixed-link {
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speed = <2500>;
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full-duplex;
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pause;
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};
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};
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gmac1: mac@1 {
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compatible = "mediatek,eth-mac";
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reg = <1>;
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phy-handle = <&phy6>;
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phy-mode = "2500base-x";
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};
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mdio: mdio-bus {
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#address-cells = <1>;
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#size-cells = <0>;
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};
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};
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&mdio {
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#address-cells = <1>;
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#size-cells = <0>;
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reset-gpios = <&pio 6 GPIO_ACTIVE_LOW>;
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reset-delay-us = <1500000>;
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reset-post-delay-us = <1000000>;
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/* WAN/LAN 2.5Gbps phy
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MaxLinear GPY211C0VC (SLNW8) */
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phy6: phy@6 {
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compatible = "ethernet-phy-ieee802.3-c45";
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reg = <6>;
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};
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switch: switch@1f {
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compatible = "mediatek,mt7531";
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reg = <31>;
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reset-gpios = <&pio 5 GPIO_ACTIVE_HIGH>;
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};
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};
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&switch {
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ports {
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#address-cells = <1>;
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#size-cells = <0>;
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/* WAN/LAN 1Gbps port */
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port@0 {
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reg = <0>;
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label = "lan0";
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};
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/* LAN1 port */
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port@1 {
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reg = <1>;
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label = "lan1";
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};
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/* LAN2 port */
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port@2 {
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reg = <2>;
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label = "lan2";
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};
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port@6 {
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reg = <6>;
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ethernet = <&gmac0>;
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phy-mode = "2500base-x";
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fixed-link {
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speed = <2500>;
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full-duplex;
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pause;
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};
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};
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};
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};
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&pio {
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spi_flash_pins: spi-flash-pins-33-to-38 {
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mux {
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function = "spi";
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groups = "spi0", "spi0_wp_hold";
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};
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conf-pu {
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pins = "SPI2_CS", "SPI2_HOLD", "SPI2_WP";
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drive-strength = <8>;
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mediatek,pull-up-adv = <0>; /* bias-disable */
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};
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conf-pd {
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pins = "SPI2_CLK", "SPI2_MOSI", "SPI2_MISO";
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drive-strength = <8>;
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mediatek,pull-down-adv = <0>; /* bias-disable */
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};
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};
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wf_2g_5g_pins: wf_2g_5g-pins {
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mux {
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function = "wifi";
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groups = "wf_2g", "wf_5g";
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};
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conf {
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pins = "WF0_HB1", "WF0_HB2", "WF0_HB3", "WF0_HB4",
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"WF0_HB0", "WF0_HB0_B", "WF0_HB5", "WF0_HB6",
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"WF0_HB7", "WF0_HB8", "WF0_HB9", "WF0_HB10",
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"WF0_TOP_CLK", "WF0_TOP_DATA", "WF1_HB1",
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"WF1_HB2", "WF1_HB3", "WF1_HB4", "WF1_HB0",
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"WF1_HB5", "WF1_HB6", "WF1_HB7", "WF1_HB8",
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"WF1_TOP_CLK", "WF1_TOP_DATA";
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drive-strength = <4>;
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};
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};
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};
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&spi0 {
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pinctrl-names = "default";
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pinctrl-0 = <&spi_flash_pins>;
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status = "okay";
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spi_nand_flash: flash@0 {
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compatible = "spi-nand";
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#address-cells = <1>;
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#size-cells = <1>;
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reg = <0>;
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spi-max-frequency = <20000000>;
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spi-tx-bus-width = <4>;
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spi-rx-bus-width = <4>;
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partitions: partitions {
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compatible = "fixed-partitions";
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#address-cells = <1>;
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#size-cells = <1>;
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};
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};
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};
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&trng {
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status = "okay";
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};
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&uart0 {
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status = "okay";
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};
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&watchdog {
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status = "okay";
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};
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&wifi {
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status = "okay";
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pinctrl-names = "default";
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pinctrl-0 = <&wf_2g_5g_pins>;
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ieee80211-freq-limit = <2400000 2500000>, <5170000 5835000>;
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};
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