Openwrt/target/linux/ramips/dts/mt7621_xiaomi_mi-router-4a-3g-v2.dtsi
Adrian Schmutzler e0cc68daad ramips: use m25p,fast-read on Xiaomi Mi Router 4A Gb/3G v2
The Xiaomi Mi Router 4A Gigabit model has a race condition on bootup
causing the SQUASHFS data errors to appear and create a bootloop
scenario.

Adding the m25p,fast-read property resolves this issue.

Suggested-by: David Bentham <db260179@gmail.com>
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2020-11-18 21:13:46 +01:00

163 lines
2.5 KiB
Plaintext

// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
#include "mt7621.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
/ {
aliases {
led-boot = &led_status_yellow;
led-failsafe = &led_status_yellow;
led-running = &led_status_blue;
led-upgrade = &led_status_yellow;
label-mac-device = &wan;
};
chosen {
bootargs = "console=ttyS0,115200n8";
};
leds {
compatible = "gpio-leds";
led_status_blue: status_blue {
label = "blue:status";
gpios = <&gpio 8 GPIO_ACTIVE_LOW>;
};
led_status_yellow: status_yellow {
label = "yellow:status";
gpios = <&gpio 10 GPIO_ACTIVE_LOW>;
};
};
keys {
compatible = "gpio-keys";
reset {
label = "reset";
gpios = <&gpio 18 GPIO_ACTIVE_LOW>;
linux,code = <KEY_RESTART>;
};
};
};
&spi0 {
status = "okay";
flash@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <80000000>;
m25p,fast-read;
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "u-boot";
reg = <0x0 0x30000>;
read-only;
};
partition@30000 {
label = "u-boot-env";
reg = <0x30000 0x10000>;
read-only;
};
partition@40000 {
label = "Bdata";
reg = <0x40000 0x10000>;
read-only;
};
factory: partition@50000 {
label = "factory";
reg = <0x50000 0x10000>;
read-only;
};
partition@60000 {
label = "crash";
reg = <0x60000 0x10000>;
read-only;
};
partition@70000 {
label = "cfg_bak";
reg = <0x70000 0x10000>;
read-only;
};
partition@80000 {
label = "overlay";
reg = <0x80000 0x100000>;
read-only;
};
firmware: partition@180000 {
compatible = "denx,uimage";
label = "firmware";
reg = <0x180000 0xe80000>;
};
};
};
};
&pcie {
status = "okay";
};
&pcie0 {
wifi@0,0 {
compatible = "pci14c3,7662";
reg = <0x0000 0 0 0 0>;
mediatek,mtd-eeprom = <&factory 0x8000>;
ieee80211-freq-limit = <5000000 6000000>;
};
};
&pcie1 {
wifi@0,0 {
compatible = "pci14c3,7603";
reg = <0x0000 0 0 0 0>;
mediatek,mtd-eeprom = <&factory 0x0000>;
ieee80211-freq-limit = <2400000 2500000>;
};
};
&gmac0 {
mtd-mac-address = <&factory 0xe000>;
};
&switch0 {
ports {
port@2 {
status = "okay";
label = "lan2";
};
port@3 {
status = "okay";
label = "lan1";
};
wan: port@4 {
status = "okay";
label = "wan";
mtd-mac-address = <&factory 0xe006>;
};
};
};
&state_default {
gpio {
groups = "jtag", "uart2", "uart3", "wdt";
function = "gpio";
};
};