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620aa80064
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
(cherry picked from commit ee8df790ca
)
Signed-off-by: Mikhail Zhilkin <csharper2005@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/17129
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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