ath79: add support for TP-Link TL-WDR6500 v2
This ports the TP-Link TL-WDR6500 v2 from ar71xx to ath79.
Specifications:
SoC: QCA9561
CPU: 750 MHz
Flash: 8 MiB (Winbond W25Q64FVSIG)
RAM: 128 MiB
WiFi 2.4 GHz: QCA956X 3x3 MIMO 802.11b/g/n
WiFi 5 GHz: QCA9882-BR4A 2x2 MIMO 802.11a/n/ac
Ethernet: 4x LAN and 1x WAN (all 100M)
USB: 1x Header
Flashing instructions:
As it appears, the device does not support flashing via GUI or
TFTP, only serial is possible.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Signed-off-by: Xiaobing Luo <luoxiaobing0926@gmail.com>