openwrtv3/target/linux/ramips/dts/TL-MR3020V3.dts
Carlo Nel 6bbb220255 ramips: add support for TP-Link TL-MR3020 v3
TP-Link TL-MR3020 v3 is a pocket-size router based on MediaTek MT7628N.

This PR is based on the work of @meyergru[1], with his permission.

Specification:
- MediaTek MT7628N/N (575 Mhz)
- 64 MB of RAM
- 8 MB of FLASH
- 2T2R 2.4 GHz
- 1x 10/100 Mbps Ethernet

Flash instruction:

The only way to flash the image in TL-MR3020 v3 is to use
tftp recovery mode in U-Boot:

1. Configure PC with static IP 192.168.0.225/24 and tftp server.
2. Rename "openwrt-ramips-mt76x8-tplink_tl-mr3020-v3-squashfs-tftp-recovery.bin"
   to "tp_recovery.bin" and place it in tftp server directory.
3. Connect PC with the LAN port, press the reset button, power up
   the router and keep button pressed for around 6-7 seconds, until
   device starts downloading the file.
4. Router will download file from server, write it to flash and reboot.

[1] https://github.com/meyergru/lede-source/commits/TL-MR3020-V3

Signed-off-by: Carlo Nel <carlojnel@gmail.com>
2018-09-06 21:36:42 +02:00

144 lines
2.3 KiB
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/dts-v1/;
#include "mt7628an.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
/ {
compatible = "tplink,tl-mr3020-v3", "mediatek,mt7628an-soc";
model = "TP-Link TL-MR3020 v3";
aliases {
led-status = &led_power;
};
chosen {
bootargs = "console=ttyS0,115200";
};
memory@0 {
device_type = "memory";
reg = <0x0 0x4000000>;
};
gpio-keys-polled {
compatible = "gpio-keys-polled";
poll-interval = <20>;
wps {
label = "wps";
gpios = <&gpio1 6 GPIO_ACTIVE_LOW>;
linux,code = <KEY_WPS_BUTTON>;
};
modec1 {
label = "sw1";
gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
linux,code = <BTN_0>;
};
modec2 {
label = "sw2";
gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
linux,code = <BTN_1>;
};
};
gpio-leds {
compatible = "gpio-leds";
led_power: power {
label = "tl-mr3020-v3:green:power";
gpios = <&gpio1 5 GPIO_ACTIVE_LOW>;
default-state = "on";
};
wan {
label = "tl-mr3020-v3:green:3g";
gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
};
wlan {
label = "tl-mr3020-v3:green:wlan";
gpios = <&gpio1 12 GPIO_ACTIVE_LOW>;
};
wps {
label = "tl-mr3020-v3:green:wps";
gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
};
lan {
label = "tl-mr3020-v3:green:lan";
gpios = <&gpio0 3 GPIO_ACTIVE_LOW>;
};
};
};
&spi0 {
status = "okay";
m25p80@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <10000000>;
m25p,chunked-io = <32>;
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "boot";
reg = <0x0 0x20000>;
read-only;
};
partition@20000 {
label = "firmware";
reg = <0x20000 0x7a0000>;
};
partition@7c0000 {
label = "config";
reg = <0x7c0000 0x10000>;
read-only;
};
factory: partition@7d0000 {
label = "factory";
reg = <0x7d0000 0x30000>;
read-only;
};
};
};
};
&ehci {
status = "okay";
};
&ohci {
status = "okay";
};
&pinctrl {
state_default: pinctrl0 {
gpio {
ralink,group = "i2s", "refclk", "wdt", "p2led_an", "p1led_an", "p0led_an", "wled_an";
ralink,function = "gpio";
};
};
};
&wmac {
status = "okay";
mtd-mac-address = <&factory 0xf100>;
mediatek,mtd-eeprom = <&factory 0x20000>;
};
&ethernet {
mtd-mac-address = <&factory 0xf100>;
};