ramips: add support for Netgear WAX202

Netgear WAX202 is an 802.11ax (Wi-Fi 6) router.

Specifications:
* SoC: MT7621A
* RAM: 512 MiB NT5CC256M16ER-EK
* Flash: NAND 128 MiB F59L1G81MB-25T
* Wi-Fi:
  * MT7915D: 2.4/5 GHz (DBDC)
* Ethernet: 4x 1GbE
  * Switch: SoC built-in
* USB: None
* UART: 115200 baud (labeled on board)

Load addresses (same as ipTIME AX2004M):
* stock
  * 0x80010000: FIT image
  * 0x81001000: kernel image -> entry
* OpenWrt
  * 0x80010000: FIT image
  * 0x82000000: uncompressed kernel+relocate image
  * 0x80001000: relocated kernel image -> entry

Installation:
* Flash the factory image through the stock web interface, or TFTP to
  the bootloader. NMRP can be used to TFTP without opening the case.
* Note that the bootloader accepts both encrypted and unencrypted
  images, while the stock web interface only accepts encrypted ones.

Revert to stock firmware:
* Flash the stock firmware to the bootloader using TFTP/NMRP.

References in WAX202 GPL source:
https://www.downloads.netgear.com/files/GPL/WAX202_V1.0.5.1_Source.rar

* openwrt/target/linux/ramips/dts/mt7621-ax-nand-wax202.dts
  DTS file for this device.

Signed-off-by: Wenli Looi <wlooi@ucalgary.ca>
(cherry picked from commit 0f068e7c4a83bcbf20c4e52a5f8a3f1fe2af2246)

3 files changed, 17 insertions, 0 deletions

diff --git a/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds b/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
index 2cb8fdb557..5ff7dc4199 100644
--- a/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
+++ b/target/linux/ramips/mt7621/base-files/etc/board.d/01_leds
@@ -103,6 +103,12 @@ netgear,r7450)
 	ucidef_set_led_netdev "lan3" "LAN3" "white:lan3" "lan3"
 	ucidef_set_led_netdev "lan4" "LAN4" "white:lan4" "lan4"
 	;;
+netgear,wax202)
+	ucidef_set_led_netdev "internet" "Internet" "green:net" "wan"
+	ucidef_set_led_netdev "lan1" "LAN1" "green:lan1" "lan1"
+	ucidef_set_led_netdev "lan2" "LAN2" "green:lan2" "lan2"
+	ucidef_set_led_netdev "lan3" "LAN3" "green:lan3" "lan3"
+	;;
 oraybox,x3a)
 	ucidef_set_led_netdev "wan" "wan link" "red:status" "wan"
 	ucidef_set_led_netdev "lan" "lan link" "green:status" "br-lan"
diff --git a/target/linux/ramips/mt7621/base-files/etc/board.d/02_network b/target/linux/ramips/mt7621/base-files/etc/board.d/02_network
index a8d8b8eef2..0c696b2301 100644
--- a/target/linux/ramips/mt7621/base-files/etc/board.d/02_network
+++ b/target/linux/ramips/mt7621/base-files/etc/board.d/02_network
@@ -26,6 +26,7 @@ ramips_setup_interfaces()
 	ampedwireless,ally-r1900k|\
 	gehua,ghl-r-001|\
 	hiwifi,hc5962|\
+	netgear,wax202|\
 	xiaomi,mi-router-3-pro|\
 	xiaomi,mi-router-ac2100|\
 	xiaomi,mi-router-cr6606|\
@@ -193,6 +194,11 @@ ramips_setup_macs()
 		wan_mac=$label_mac
 		lan_mac=$(macaddr_add $label_mac 1)
 		;;
+	netgear,wax202)
+		lan_mac=$(mtd_get_mac_ascii Config mac)
+		wan_mac=$(macaddr_add "$lan_mac" 1)
+		label_mac=$lan_mac
+		;;
 	raisecom,msg1500-x-00)
 		lan_mac=$(mtd_get_mac_ascii Config protest_lan_mac)
 		wan_mac=$(mtd_get_mac_ascii Config protest_wan_mac)
diff --git a/target/linux/ramips/mt7621/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac b/target/linux/ramips/mt7621/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac
index 627869b8db..e54d166dea 100644
--- a/target/linux/ramips/mt7621/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac
+++ b/target/linux/ramips/mt7621/base-files/etc/hotplug.d/ieee80211/10_fix_wifi_mac
@@ -68,6 +68,11 @@ case "$board" in
 		[ "$PHYNBR" = "0" ] && macaddr_add $hw_mac_addr 1 > /sys${DEVPATH}/macaddress
 		[ "$PHYNBR" = "1" ] && macaddr_add $hw_mac_addr 2 > /sys${DEVPATH}/macaddress
 		;;
+	netgear,wax202)
+		hw_mac_addr=$(mtd_get_mac_ascii Config mac)
+		[ "$PHYNBR" = "0" ] && macaddr_add $hw_mac_addr 2 > /sys${DEVPATH}/macaddress
+		[ "$PHYNBR" = "1" ] && macaddr_add $hw_mac_addr 3 > /sys${DEVPATH}/macaddress
+		;;
 	oraybox,x3a)
 		if [ "$PHYNBR" = "1" ]; then
 			hw_mac_addr="$(mtd_get_mac_binary factory 0x4)"