[source] ramips: MiWiFi Nano fixes

[LEDE Commits]

mkresin pushed a commit to source.git, branch master:
https://git.lede-project.org/b28e94d4bfa1f81219765fc395e63ca81badd8df

commit b28e94d4bfa1f81219765fc395e63ca81badd8df
Author: L. D. Pinney <ldpinney at gmail.com>
AuthorDate: Thu Dec 29 01:43:08 2016 -0600

    ramips: MiWiFi Nano fixes
    
    Use the the dt-bindings macros and add the reset button.
    
    Set the correct polarity for the LEDs and drop the default state.
    Remove all trigger for the LEDs. According to the manual the LEDs are
    only used to show the operation state, where blue means normal
    operation.
    
    Use the MAC-Addresses stored in EEPROM for the ethernet and the
    wireless interface.
    
    Signed-off-by: L. D. Pinney <ldpinney at gmail.com>
    [use leds only for boot status indication, add proper commit message]
    Signed-off-by: Mathias Kresin <dev at kresin.me>
---
 target/linux/ramips/base-files/etc/board.d/01_leds |  5 ---
 target/linux/ramips/base-files/etc/diag.sh         |  4 +--
 target/linux/ramips/dts/MIWIFI-NANO.dts            | 40 ++++++++++++++++------
 3 files changed, 31 insertions(+), 18 deletions(-)

diff --git a/target/linux/ramips/base-files/etc/board.d/01_leds b/target/linux/ramips/base-files/etc/board.d/01_leds
index e6664bd..0ebf471 100755
--- a/target/linux/ramips/base-files/etc/board.d/01_leds
+++ b/target/linux/ramips/base-files/etc/board.d/01_leds
@@ -225,11 +225,6 @@ miniembplug)
 miwifi-mini)
 	ucidef_set_led_default "power" "power" "$board:red:status" "1"
 	;;
-miwifi-nano)
-	ucidef_set_led_default "power" "power" "$board:red:status" "1"
-	ucidef_set_led_wlan "radio_led" "radio" "$board:amber:radio" "phy0radio"
-	ucidef_set_led_wlan "wifi_led" "wifi" "$board:blue:wifi" "phy0assoc"
-	;;
 mlw221|\
 mlwg2)
 	set_wifi_led "$board:blue:wifi"
diff --git a/target/linux/ramips/base-files/etc/diag.sh b/target/linux/ramips/base-files/etc/diag.sh
index 6b64d3b..a22be5e 100644
--- a/target/linux/ramips/base-files/etc/diag.sh
+++ b/target/linux/ramips/base-files/etc/diag.sh
@@ -152,11 +152,11 @@ get_status_led() {
 		status_led="$board:blue:wifi"
 		;;
 	m3|\
-	m4)
+	m4|\
+	miwifi-nano)
 		status_led="$board:blue:status"
 		;;
 	miwifi-mini|\
-	miwifi-nano|\
 	zte-q7)
 		status_led="$board:red:status"
 		;;
diff --git a/target/linux/ramips/dts/MIWIFI-NANO.dts b/target/linux/ramips/dts/MIWIFI-NANO.dts
index 6906ef3..dfe9ef5 100644
--- a/target/linux/ramips/dts/MIWIFI-NANO.dts
+++ b/target/linux/ramips/dts/MIWIFI-NANO.dts
@@ -2,6 +2,9 @@
 
 #include "mt7628an.dtsi"
 
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
 / {
 	compatible = "xiaomi,MiWifi Nano", "mediatek,mt7628an-soc";
 	model = "MiWiFi Nano";
@@ -18,20 +21,30 @@
 	gpio-leds {
 		compatible = "gpio-leds";
 
-		wifi {
-			label = "miwifi-nano:blue:wifi";
-			gpios = <&gpio0 11 1>;
-			default-state = "1";
+		status_blue {
+			label = "miwifi-nano:blue:status";
+			gpios = <&gpio0 11 GPIO_ACTIVE_LOW>;
 		};
-		status {
+		status_red {
 			label = "miwifi-nano:red:status";
-			gpios = <&gpio1 5 1>;
-			default-state = "on";
+			gpios = <&gpio1 5 GPIO_ACTIVE_LOW>;
+		};
+		status_amber {
+			label = "miwifi-nano:amber:status";
+			gpios = <&gpio1 12 GPIO_ACTIVE_LOW>;
 		};
-		radio {
-			label = "miwifi-nano:amber:radio";
-			gpios = <&gpio1 12 1>;
-			default-state = "1";
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys-polled";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		poll-interval = <20>;
+
+		reset {
+			label = "reset";
+			gpios = <&gpio1 6 GPIO_ACTIVE_LOW>;
+			linux,code = <KEY_RESTART>;
 		};
 	};
 };
@@ -47,6 +60,11 @@
 
 &wmac {
 	status = "okay";
+	ralink,mtd-eeprom = <&factory 0x4>;
+};
+
+&ethernet {
+	mtd-mac-address = <&factory 0x28>;
 };
 
 &spi0 {