ramips: add support for Netgear R6220

This patch adds support for the Netgear R6220, aka Netgear AC1200 and
R6220-100NAS.

Specification:
- SoC: MediaTek MT7621ST (880 MHz)
- Falsh: 128 MiB (Macronix MX30LF1G08AA-TI)
- RAM: 128 MiB (Nanya NT5CB64M16FP-DH)
- Wireless: MediaTek MT7603EN b/g/n , MediaTek MT7612EN an+ac
- LAN speed: 10/100/1000
- LAN ports: 4
- WAN speed: 10/100/1000
- WAN ports: 1
- Serial baud rate of Bootloader and factory firmware: 57600

Installation through telnet:
- Copy kernel.bin and rootfs.bin to a USB flash disk, plug to usb port
  on the router.
- Enable telnet with link: http://192.168.1.1/setup.cgi?todo=debug
  (login if required, default: admin password)
- You will see "Debug Enabled!"
- Telnet 192.168.1.1 and login with "root"
- ls /mnt/shares/ to find out path of your USB disk. 'myUdisk' for
  example.
- cd /mnt/shares/myUdisk
- mtd_write write rootfs.bin Rootfs
- mtd_write write kernel.bin Kernel
- reboot

nmrpflash can be used to recover to the netgear firmware if a broken
image was flashed.

Signed-off-by: Hanqing Wong <hquu@outlook.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/target/linux/ramips/base-files/lib/upgrade/platform.sh b/target/linux/ramips/base-files/lib/upgrade/platform.sh
index 3245e2c1c8..7b12d97a00 100755
--- a/target/linux/ramips/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ramips/base-files/lib/upgrade/platform.sh
@@ -229,7 +229,8 @@ platform_check_image() {
 		}
 		return 0
 		;;
-	hc5962)
+	hc5962|\
+	r6220)
 		# these boards use metadata images
 		return 0
 		;;
@@ -266,6 +267,7 @@ platform_pre_upgrade() {
 
 	case "$board" in
 	hc5962|\
+	r6220|\
     	ubnt-erx)
 		nand_do_upgrade "$ARGV"
 		;;