ar71xx: add support for EnGenius ENS202EXT

EnGenius ENS202EXT is an outdoor wireless access point with
2-port 10/100 switch, detachable antennas and proprietery PoE.

The device is based on Qualcomm/Atheros AR9341 v1.

Specifications:
- 535/400/200 MHz (CPU/DDR/AHB)
- 64 MB of RAM
- 16 MB of FLASH
- UART (J1) header on PCB (unpopulated)
- 2x 10/100 Mbps Ethernet
- 2.4 GHz, up to 26dBm
- 2x external, detachable antennas
- 7x LED, 1x button

Flash instructions:

You have three options:

- Use the vendor firmware upgrade page on the web interface and give
it the factory.img. This is the easiest way to go about it.

- If you have serial access during u-boot, interrupt the normal boot
(any key before timeout) and run 'run failsafe_boot'; this will bring
you to a minimal openwrt luci image on ip 192.168.1.1 useful if you've
bricked the normal firmware.

- Use the vendor's management cli, which can be accessed via telnet
with the same credentials as the web login (default admin:admin), then
issue the following commands:

*** Hi admin, welcome to use cli(V-1.6.7) ***
---========= Commands Help =========---
      stat -- Status
       sys -- System
    wless2 -- 2.4G-Wireless
      mgmt -- Management
      tree -- Tree
      help -- Help
    reboot -- Reboot
ens202ext>mgmt
  Management
---========= Commands Help =========---
     admin -- Administration
     mvlan -- Management VLAN settings
      snmp -- SNMP settings
    backup -- Backup/Restore settings
    autorb -- Auto reboot settings
   fwgrade -- Firmware upgrade
      time -- Time settings
   wifisch -- Wifi schedule
       log -- Log
      diag -- Diagnostics
      disc -- Device Discovery
    logout -- Logout
      help -- Help
      exit -- Exit
ens202ext/mgmt>fwgrade
  Management --> Firmware upgrade
---========= Commands Help =========---
      fwup -- Firmware upgrade
      help -- Help
      exit -- Exit
ens202ext/mgmt/fwgrade>fwup http://web.server/lede-ar71xx-generic-ens202ext-squashfs-factory.bin

Signed-off-by: Marty Plummer <ntzrmtthihu777@gmail.com>

2 files changed, 27 insertions, 0 deletions

diff --git a/target/linux/ar71xx/image/Makefile b/target/linux/ar71xx/image/Makefile
index 8eac5fc..32951e5 100644
--- a/target/linux/ar71xx/image/Makefile
+++ b/target/linux/ar71xx/image/Makefile
@@ -17,6 +17,7 @@ include ./tp-link.mk
 include ./ubnt.mk
 include ./generic.mk
 include ./legacy-devices.mk
+include ./senao.mk
 endif
 ifeq ($(SUBTARGET),nand)
 include ./nand.mk
diff --git a/target/linux/ar71xx/image/senao.mk b/target/linux/ar71xx/image/senao.mk
new file mode 100644
index 0000000..50d3ccd
--- /dev/null
+++ b/target/linux/ar71xx/image/senao.mk
@@ -0,0 +1,26 @@
+define Build/senao-factory-image
+	$(eval board=$(word 1,$(1)))
+	$(eval rootfs=$(word 2,$(1)))
+
+	mkdir -p $@.senao
+
+	touch $@.senao/FWINFO-OpenWrt-$(REVISION)-$(board)
+	$(CP) $(IMAGE_KERNEL) $@.senao/openwrt-senao-$(board)-uImage-lzma.bin
+	$(CP) $(rootfs) $@.senao/openwrt-senao-$(board)-root.squashfs
+
+	$(TAR) -czf $@ -C $@.senao .
+	rm -rf $@.senao
+endef
+
+define Device/ens202ext
+  DEVICE_TITLE := EnGenius ENS202EXT
+  BOARDNAME := ENS202EXT
+  DEVICE_PACKAGES += rssileds
+  KERNEL_SIZE := 1536k
+  KERNEL := kernel-bin | patch-cmdline | lzma | uImage lzma | check-size $$(KERNEL_SIZE)
+  IMAGE_SIZE := 12096k
+  IMAGES += factory.bin
+  IMAGE/factory.bin/squashfs := append-rootfs | pad-rootfs | senao-factory-image ens202ext $$$$@
+  MTDPARTS := spi0.0:256k(u-boot)ro,64k(u-boot-env),320k(custom)ro,13632k(firmware),2048k(failsafe)ro,64k(art)ro
+endef
+TARGET_DEVICES += ens202ext