ar71xx: add support for Teltonika RUT900

Teltonika RUT900 is an industrial 3G router based on Atheros AR9344.

There are available 3 other models in RUT9xx series: RUT905, RUT950 and
RUT955, which differ in availability of additional I/O ports, built-in
GSM modem type, GPS antenna and other features. FCC ID of the RUT950
model (LTE module built-in): 2AET4-RUT950.

This patch adds support for the RUT900 model only but can be easily
extended to cover whole series. Also, as there are several different
3/4G modules (Huawei, Quectel, Telit) used in whole series, packages
required for WWAN support are not included by default. It is up to the
user to install required software for built-in modem.

Specification:

- 550/400/200 MHz (CPU/DDR/AHB)
- 128 MB of RAM (DDR2)
- 16 MB of FLASH (SPI NOR)
- 4x 10/100 Mbps Ethernet, with passive PoE support on LAN1
- 2T2R 2,4 GHz (AR9344), with ext. PA (MGA-22103) and LNA
- built-in 3G module (example: Telit HE910-D)
- 2x miniSIM slot
- 2x RP-SMA/F (Wi-Fi), 2x SMA/F (3G)
- PCA9539 16-bit GPIO I2C expander
- 12x LED (4 are driven by AR9344, 7 by PCA9539)
- 1x button (reset)
- DC jack for main power input (9-30 V)
- UART available on PCB edge connector

Serial console pinout:

- RX: pin1 (square) on top side of the main PCB (AR9344 is on top)
- TX: pin1 (square) on bottom side

Flash instruction:

Vendor firmware is based on OpenWrt CC release. Use the "factory" image
directly in GUI (make sure to uncheck "keep settings") or in U-Boot web
based recovery. To avoid any problems, make sure to first update vendor
firmware to latest version - "factory" image was successfully tested on
device running "RUT9XX_R_00.03.960" firmware and U-Boot "3.0.1".

Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>

5 files changed, 16 insertions, 0 deletions

diff --git a/target/linux/ar71xx/base-files/etc/board.d/01_leds b/target/linux/ar71xx/base-files/etc/board.d/01_leds
index f2d66b2986..02f3ad911a 100755
--- a/target/linux/ar71xx/base-files/etc/board.d/01_leds
+++ b/target/linux/ar71xx/base-files/etc/board.d/01_leds
@@ -595,6 +595,12 @@ re450)
 	ucidef_set_led_wlan "wlan2g" "WLAN 2.4 GHz" "$board:blue:wlan2g" "phy1tpt"
 	ucidef_set_led_wlan "wlan5g" "WLAN 5 GHz" "$board:blue:wlan5g" "phy0tpt"
 	;;
+rut900)
+	ucidef_set_led_netdev "wan" "WAN" "$board:green:wan" "eth1"
+	ucidef_set_led_switch "lan1" "LAN1" "$board:green:lan1" "switch0" "0x10"
+	ucidef_set_led_switch "lan2" "LAN2" "$board:green:lan2" "switch0" "0x08"
+	ucidef_set_led_switch "lan3" "LAN3" "$board:green:lan3" "switch0" "0x04"
+	;;
 smart-300)
 	ucidef_set_led_netdev "wan" "WAN" "nc-link:green:wan" "eth0"
 	ucidef_set_led_switch "lan1" "LAN1" "nc-link:green:lan1" "switch0" "0x04"
diff --git a/target/linux/ar71xx/base-files/etc/board.d/02_network b/target/linux/ar71xx/base-files/etc/board.d/02_network
index 461b72f4d7..675c1f7718 100755
--- a/target/linux/ar71xx/base-files/etc/board.d/02_network
+++ b/target/linux/ar71xx/base-files/etc/board.d/02_network
@@ -428,6 +428,11 @@ ar71xx_setup_interfaces()
 		ucidef_add_switch "switch0" \
 			"0@eth0" "1:wan" "2:lan"
 		;;
+	rut900)
+		ucidef_set_interfaces_lan_wan "eth0.1" "eth1"
+		ucidef_add_switch "switch0" \
+			"0@eth0" "2:lan:3" "3:lan:2" "4:lan:1"
+		;;
 	tellstick-znet-lite)
 		ucidef_set_interface_wan "eth0"
 		ucidef_set_interface_raw "wlan" "wlan0" "dhcp"
diff --git a/target/linux/ar71xx/base-files/etc/diag.sh b/target/linux/ar71xx/base-files/etc/diag.sh
index 63a9ebc1ec..1dece96f84 100644
--- a/target/linux/ar71xx/base-files/etc/diag.sh
+++ b/target/linux/ar71xx/base-files/etc/diag.sh
@@ -40,6 +40,7 @@ get_status_led() {
 	db120|\
 	dr342|\
 	dr344|\
+	rut900|\
 	tew-632brp|\
 	tl-wr942n-v1|\
 	wpj344|\
diff --git a/target/linux/ar71xx/base-files/lib/ar71xx.sh b/target/linux/ar71xx/base-files/lib/ar71xx.sh
index 1de9d02965..1419579d83 100755
--- a/target/linux/ar71xx/base-files/lib/ar71xx.sh
+++ b/target/linux/ar71xx/base-files/lib/ar71xx.sh
@@ -995,6 +995,9 @@ ar71xx_board_detect() {
 	*"RouterStation Pro")
 		name="routerstation-pro"
 		;;
+	*"RUT900")
+		name="rut900"
+		;;
 	*"RW2458N")
 		name="rw2458n"
 		;;
diff --git a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
index 3bfedf82da..86d0476790 100755
--- a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
@@ -387,6 +387,7 @@ platform_check_image() {
 	onion-omega|\
 	oolite|\
 	re450|\
+	rut900|\
 	smart-300|\
 	som9331|\
 	tellstick-znet-lite|\