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ramips: add TP-Link TL-WR802N-v4 support

This patch adds support for the TP-Link TL-WR802N-v4.
https://openwrt.org/toh/tp-link/tl-wr802n

Specification:
- MT7628N (580 MHz)
- 64 MB RAM
- 8 MB FLASH
- 2T2R 2.4 GHz
- 1x 10/100 Mbps Ethernet
- 1x LED

Flash instruction:

The only way to flash the image in TL-WR802N v4 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-wr802n-v4-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 10 seconds, until
   device starts downloading the file.
4. Router will download file from server, write it to flash and reboot.

Signed-off-by: Marcel Jost <majo@icutech.ch>
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majo-icutech authored and chunkeey committed Dec 18, 2018
1 parent a915ad8 commit e6f047fa368ca9c90691b93aa5e03068fe1f4178
@@ -161,6 +161,7 @@ ramips_setup_interfaces()
ravpower,wd03|\
tama,w06|\
tplink,tl-mr3020-v3|\
tplink,tl-wr802n-v4|\
u25awf-h1|\
wli-tx4-ag300n|\
wmdr-143n|\
@@ -0,0 +1,53 @@
// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/dts-v1/;

#include "TPLINK-8M.dtsi"

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>

/ {
compatible = "tplink,tl-wr802n-v4", "mediatek,mt7628an-soc";
model = "TP-Link TL-WR802N v4";

aliases {
led-boot = &led_power;
led-failsafe = &led_power;
led-running = &led_power;
led-upgrade = &led_power;
};

keys {
compatible = "gpio-keys-polled";
poll-interval = <20>;

reset {
label = "reset";
gpios = <&gpio1 6 GPIO_ACTIVE_LOW>;
linux,code = <KEY_RESTART>;
};
};

leds {
compatible = "gpio-leds";

led_power: power {
label = "tl-wr802n-v4:green:power";
gpios = <&gpio1 5 GPIO_ACTIVE_LOW>;
};
};
};

&pinctrl {
state_default: pinctrl0 {
gpio {
ralink,group = "refclk", "wdt";
ralink,function = "gpio";
};
};
};

&ethernet {
mtd-mac-address = <&factory 0xf100>;
mediatek,portmap = "l";
};
@@ -177,6 +177,19 @@ define Device/tplink_tl-wa801nd-v5
endef
TARGET_DEVICES += tplink_tl-wa801nd-v5

define Device/tplink_tl-wr802n-v4
$(Device/tplink)
DTS := TL-WR802NV4
IMAGE_SIZE := 7808k
DEVICE_TITLE := TP-Link TL-WR802N v4
TPLINK_FLASHLAYOUT := 8Mmtk
TPLINK_HWID := 0x08020004
TPLINK_HWREV := 0x1
TPLINK_HWREVADD := 0x4
TPLINK_HVERSION := 3
endef
TARGET_DEVICES += tplink_tl-wr802n-v4

define Device/tl-wr840n-v4
$(Device/tplink)
DTS := TL-WR840NV4

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