lede/target/linux/ramips/dts/mt7620a_xiaomi_miwifi-r3.dts
AmadeusGhost a1807936af
ramips: add xiaomi_miwifi-r3 support (#3839)
* ramips: add xiaomi_miwifi-r3 support

Specification:
 - CPU: 580 MHz
 - Flash size: 128 MiB NAND
 - RAM size: 128 MiB DDR2
 - Wireless No1: SoC-integrated: MT7620A 2x2 MIMO 802.11b/g/n (2.4 GHz)
 - Wireless No2: On-board chip: MT7612E 2x2 MIMO 802.11a/n/ac (5 GHz)
 - Switch: MT7620 built-in 10/100 switch w/ vlan support
 - USB: 2.0 x1

Flash instructions:
 1. access ssh via https://wiki.openwrt.org/toh/xiaomi/mir3
 2. in ssh:
      nvram set flag_last_success=1
      nvram set boot_wait=on
      nvram set uart_en=1
      nvram commit
      mtd write lede-ramips-mt7620-miwifi-r3-squashfs-kernel1.bin kernel1
      mtd write lede-ramips-mt7620-miwifi-r3-squashfs-rootfs0.bin rootfs0
      reboot

If you want to revert back to stock fw while on LEDE:
  insert usb stick (FAT/FAT32) with stock fw renamed to miwifi.bin
  fw_setenv flag_last_success 0
  power off the device
  hold the reset button and power on the device, keep holding the reset button until yellow led starts blinking.

Signed-off-by: Chen Minqiang <ptpt52@gmail.com>

* ramips: add mt7620-nand driver for NAND flash

This add the mt7620-nand driver
and enable nand ubifs for subtarget mt7620

Signed-off-by: Chen Minqiang <ptpt52@gmail.com>

Co-authored-by: Chen Minqiang <ptpt52@gmail.com>
2020-03-17 01:39:45 +08:00

170 lines
2.7 KiB
Plaintext

/dts-v1/;
#include "mt7620a.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
/ {
compatible = "xiaomi,miwifi-r3", "ralink,mt7620a-soc";
model = "Xiaomi Mi Router R3";
aliases {
led-status = &led_status_blue;
};
chosen {
bootargs = "console=ttyS0,115200";
};
keys {
compatible = "gpio-keys";
reset {
label = "reset";
gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>;
linux,code = <KEY_RESTART>;
};
};
leds {
compatible = "gpio-leds";
led_status_blue: blue {
label = "miwifi-r3:blue:status";
gpios = <&gpio1 0 GPIO_ACTIVE_LOW>;
default-state = "on";
};
yellow {
label = "miwifi-r3:yellow:status";
gpios = <&gpio1 2 GPIO_ACTIVE_LOW>;
};
red {
label = "miwifi-r3:red:status";
gpios = <&gpio1 5 GPIO_ACTIVE_LOW>;
};
};
nand {
status = "okay";
#address-cells = <1>;
#size-cells = <1>;
compatible = "mtk,mt7620-nand";
partition@0 {
label = "Bootloader";
reg = <0x0 0x40000>;
read-only;
};
partition@40000 {
label = "Config";
reg = <0x40000 0x40000>;
};
partition@80000 {
label = "Bdata";
reg = <0x80000 0x40000>;
read-only;
};
factory: partition@0xc0000 {
label = "factory";
reg = <0xc0000 0x40000>;
read-only;
};
partition@100000 {
label = "crash";
reg = <0x100000 0x40000>;
read-only;
};
partition@140000 {
label = "crash_syslog";
reg = <0x140000 0x40000>;
read-only;
};
partition@180000 {
label = "reserved0";
reg = <0x180000 0x80000>;
read-only;
};
partition@200000 {
label = "kernel_stock";
reg = <0x200000 0x400000>;
};
partition@600000 {
label = "kernel";
reg = <0x600000 0x400000>;
};
/* ubi partition is the result of squashing
* next consequent stock partitions:
* - rootfs0 (rootfs partition for stock kernel0),
* - rootfs1 (rootfs partition for stock failsafe kernel1),
* - overlay (used as ubi overlay in stock fw)
* resulting 117,5MiB space for packages.
*/
partition@a00000 {
label = "ubi";
reg = <0xa00000 0x7600000>;
};
};
};
&gpio1 {
status = "okay";
};
&ehci {
status = "okay";
};
&ohci {
status = "okay";
};
&ethernet {
pinctrl-names = "default";
pinctrl-0 = <&ephy_pins>;
mtd-mac-address = <&factory 0x28>;
mediatek,portmap = "llllw";
};
&wmac {
ralink,mtd-eeprom = <&factory 0>;
};
&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>;
};
};
&pinctrl {
state_default: pinctrl0 {
gpio {
ralink,group = "rgmii1";
ralink,function = "gpio";
};
pa {
ralink,group = "pa";
ralink,function = "pa";
};
};
};