ath79: add support for EnGenius ECB1750

Specification:

- Qualcomm Atheros SoC QCA9558
- 720/600/200 MHz (CPU/DDR/AHB)
- 128 MB of RAM (DDR2)
- 16 MB of FLASH (SPI NOR)
- 1x 10/100/1000 Mbps Ethernet
- 3T3R 2.4 GHz (QCA9558 WMAC)
- 3T3R 5.8 Ghz (QCA9880-BR4A, Senao PCE4553AH)

https://fccid.io/A8J-ECB1750

Tested and working:

- lan, wireless, leds, sysupgrade (tftp)

Flash instructions:

1.) tftp recovery

- use a 1GbE switch or direct attached 1GbE link
- setup client ip address 192.168.1.10 and start tftpd
- save "openwrt-ath79-generic-engenius_ecb1750-initramfs-kernel.bin" as "ap.bin" in tfpd root directory
- plugin powercord and hold reset button 10secs.. "ap.bin" will be downloaded and executed
- afterwards login via ssh and do a sysuprade

2.) oem webinterface factory install (not tested)

Use normal webinterface upgrade page und select "openwrt-ath79-generic-engenius_ecb1750-squashfs-factory.bin".

3.) oem webinterface command injection

OEM Firmware already running OpenWrt (Attitude Adjustment 12.09).
Use OEM webinterface and command injection. See wiki for details.

https://openwrt.org/toh/engenius/engenius_ecb1750_1

Signed-off-by: sven friedmann <sf.openwrt@okay.ms>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
[use interrupt-driven "gpio-keys" binding]

target/linux/ath79/base-files/etc/board.d/01_leds

@@ -58,6 +58,9 @@ comfast,cf-e5)
 dlink,dir-859-a1)
 	ucidef_set_led_switch "internet" "WAN" "$boardname:green:internet" "switch0" "0x20"
 	;;
+engenius,ecb1750)
+	ucidef_set_led_netdev "lan" "LAN" "$boardname:blue:lan" "eth0"
+	;;
 engenius,ews511ap)
 	ucidef_set_led_netdev "lan1" "LAN1" "$boardname:blue:lan1" "eth0"
 	ucidef_set_led_netdev "lan2" "LAN2" "$boardname:blue:lan2" "eth1"

target/linux/ath79/base-files/etc/board.d/02_network

@@ -13,6 +13,7 @@ ath79_setup_interfaces()
 	devolo,dvl1200i|\
 	devolo,dvl1750c|\
 	devolo,dvl1750i|\
+	engenius,ecb1750|\
 	glinet,ar300m-lite|\
 	netgear,ex6400|\
 	netgear,ex7300|\
@@ -291,6 +292,9 @@ ath79_setup_macs()
 	elecom,wrc-300ghbk2-i)
 		wan_mac=$(macaddr_add "$(mtd_get_mac_binary ART 4098)" -2)
 		;;
+	engenius,ecb1750)
+		lan_mac=$(mtd_get_mac_ascii u-boot-env ethaddr)
+		;;
 	engenius,epg5000|\
 	iodata,wn-ac1167dgr|\
 	iodata,wn-ac1600dgr|\