ramips: add support for D-Link DAP-1325-A1

This patch adds support for D-Link DAP-1325-A1 (Range Extender Wi-Fi N300)

Specifications:
- SoC: 580Mhz MT7628NN
- RAM: 64MB, DDR2 SDRAM
- Storage: 8MB, SPI (W25Q64JVSSIQ)
- Ethernet: 1x 10/100 LAN port
- WIFI: 2.4 GHz 802.11bgn
- LED: Status (2x to provide 3 colors), Wi-Fi Signal Strength (4x)
- Buttons: Reset, WPS
- UART: Serial console (57600, 8n1)
Row of 4 holes near LAN port, starting from square hole:
3.3V, TX,RX,GND
- FCC ID: fccid.io/KA2AP1325A1/

Installation:

Failsafe UI
Firmware can be uploaded with Failsafe UI web page:
- turn device off
- press and hold reset button
- turn device on
- keep holding reset until red wifi strength led turns on (ab. 10sec)
- connect to device through LAN port
PC must be configured with static ip (192.168.0.x)
- connect to 192.168.0.50
- select image to be flashed and upload.
Device will reboot after successful update

Serial port/TFTP server
- Connect through serial connectors on PCB (e.g. with teraterm)
- Set up a TFTP server, and connect through LAN with static IP
- Put image file in the root of the server
- Boot the device and select '2' at U-Boot startup
- Set device IP, server IP and image file name
- Start upload and flash

Signed-off-by: Giovanni Cascione <ing.cascione@gmail.com>
[fix whitespaces in DTS, convert to nvmem, add mtd-eeprom]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

target/linux/ramips/mt76x8/base-files/etc/board.d/01_leds

@@ -24,6 +24,13 @@ cudy,wr1000)
 	ucidef_set_led_switch "lan1" "lan1" "blue:lan1" "switch0" "0x08"
 	ucidef_set_led_switch "lan2" "lan2" "blue:lan2" "switch0" "0x04"
 	;;
+dlink,dap-1325-a1)
+	ucidef_set_rssimon "wlan0" "200000" "1"
+	ucidef_set_led_rssi "wifi-verylow" "wifi-verylow" "red:wifi-verylow" "wlan0" "1" "24"
+	ucidef_set_led_rssi "wifi-low" "wifi-low" "green:wifi-low" "wlan0" "25" "100"
+	ucidef_set_led_rssi "wifi-med" "wifi-med" "green:wifi-mid" "wlan0" "50" "100"
+	ucidef_set_led_rssi "wifi-high" "wifi-high" "green:wifi-high" "wlan0" "75" "100"
+	;;
 elecom,wrc-1167fs)
 	ucidef_set_led_switch "lan" "lan" "green:lan" "switch0" "0x8"
 	ucidef_set_led_switch "internet" "internet" "green:internet" "switch0" "0x10"

target/linux/ramips/mt76x8/base-files/etc/board.d/02_network

@@ -10,6 +10,7 @@ ramips_setup_interfaces()
 	case $board in
 	alfa-network,awusfree1|\
 	d-team,pbr-d1|\
+	dlink,dap-1325-a1|\
 	glinet,microuter-n300|\
 	glinet,vixmini|\
 	hak5,wifi-pineapple-mk7|\