ramips: improve support for WeVO 11AC NAS and W2914NS v2

- remove WAN port index
- load WAN MAC address directly from the flash
- provide label MAC address
- increase flash's SPI frequency to 80MHz
- add mt76 led nodes to make WiFi LEDs work
- drop unnecessary pinmux groups

The factory partition scheme for MAC addresses (verified on both devices):
0x4   : WiFi 2.4GHz (label_mac-9)
0x28  : unused
0x2e  : WAN (label_mac)
0x8004: WiFi 5GHz (label_mac-5)
0xe000: LAN (label_mac-1)
0xe006: unused

By improving flash speed,
`time dd if=/dev/mtdblock3 of=/dev/null bs=64k`
has been reduced from 14.51s to 3.11s.

Signed-off-by: Sungbo Eo <mans0n@gorani.run>
[rebased]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

1 files changed, 16 insertions, 5 deletions

diff --git a/target/linux/ramips/dts/mt7621_wevo_w2914ns-v2.dtsi b/target/linux/ramips/dts/mt7621_wevo_w2914ns-v2.dtsi
index 4e6cccaa76..6ad3ef111f 100644
--- a/target/linux/ramips/dts/mt7621_wevo_w2914ns-v2.dtsi
+++ b/target/linux/ramips/dts/mt7621_wevo_w2914ns-v2.dtsi
@@ -34,10 +34,11 @@
 &spi0 {
 	status = "okay";
 
-	m25p80@0 {
+	flash@0 {
 		compatible = "jedec,spi-nor";
 		reg = <0>;
-		spi-max-frequency = <10000000>;
+		spi-max-frequency = <80000000>;
+		m25p,fast-read;
 
 		partitions {
 			compatible = "fixed-partitions";
@@ -77,18 +78,28 @@
 
 &pcie0 {
 	wifi@0,0 {
-		compatible = "pci14c3,7603";
+		compatible = "mediatek,mt76";
 		reg = <0x0000 0 0 0 0>;
 		mediatek,mtd-eeprom = <&factory 0x0000>;
+
+		led {
+			led-sources = <0>;
+			led-active-low;
+		};
 	};
 };
 
 &pcie1 {
 	wifi@0,0 {
-		compatible = "pci14c3,7662";
+		compatible = "mediatek,mt76";
 		reg = <0x0000 0 0 0 0>;
 		mediatek,mtd-eeprom = <&factory 0x8000>;
 		ieee80211-freq-limit = <5000000 6000000>;
+
+		led {
+			led-sources = <2>;
+			led-active-low;
+		};
 	};
 };
 
@@ -99,7 +110,7 @@
 &pinctrl {
 	state_default: pinctrl0 {
 		gpio {
-			ralink,group = "wdt", "rgmii2", "jtag", "mdio";
+			ralink,group = "wdt", "rgmii2";
 			ralink,function = "gpio";
 		};
 	};