ar71xx: Fix LED definitions for the DRAGINO2 board

This patch fixes LED definitions for the DRAGINO2 board.

1. It renames the Router/USB led to System, as it is now marked "SYS" on the board.
2. It gives control of the LAN and WAN leds and some other GPIOs to Linux.
3. It fixes the active_low property for the LAN and WAN leds.
4. It sets up WLAN, LAN and WAN leds in the UCI defaults.
5. It allows usage of the System led by the diag.sh script, so it will be used to indicate boot and failsafe status.

Signed-off-by: Vittorio Gambaletta <openwrt@vittgam.net>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@42897 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/ar71xx/base-files/etc/diag.sh

@@ -62,6 +62,9 @@ get_status_led() {
 	dir-835-a1)
 		status_led="d-link:amber:power"
 		;;
+	dragino2)
+		status_led="dragino2:red:system"
+		;;
 	eap300v2)
 		status_led="engenius:blue:power"
 		;;

target/linux/ar71xx/base-files/etc/uci-defaults/01_leds

@@ -66,6 +66,12 @@ db120)
 	ucidef_set_led_usbdev "usb" "USB" "db120:green:usb" "1-1"
 	;;
 
+dragino2)
+	ucidef_set_led_wlan "wlan" "WLAN" "dragino2:red:wlan" "phy0tpt"
+	ucidef_set_led_netdev "lan" "LAN" "dragino2:red:lan" "eth0"
+	ucidef_set_led_netdev "wan" "WAN" "dragino2:red:wan" "eth1"
+	;;
+
 eap300v2)
 	ucidef_set_led_netdev "lan" "LAN" "engenius:blue:lan" "eth0"
 	ucidef_set_led_wlan "wlan" "WLAN" "engenius:blue:wlan" "phy0tpt"

target/linux/ar71xx/files/arch/mips/ath79/mach-dragino2.c

@@ -3,6 +3,7 @@
  *
  *  Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org>
  *  Copyright (C) 2012 Elektra Wagenrad <elektra@villagetelco.org>
+ *  Copyright (C) 2014 Vittorio Gambaletta <openwrt@vittgam.net>
  *
  *  This program is free software; you can redistribute it and/or modify it
  *  under the terms of the GNU General Public License version 2 as published
@@ -27,12 +28,12 @@
 #define DRAGINO2_GPIO_LED_WAN		17
 
 /*
- * The following GPIO is actually named "Router" on the board.
- * However, since the "Router" feature is not supported as of yet
- * we use it to display USB activity.
+ * The following GPIO is named "SYS" on newer revisions of the the board.
+ * It was previously used to indicate USB activity, even though it was
+ * named "Router".
  */
 
-#define DRAGINO2_GPIO_LED_USB		28
+#define DRAGINO2_GPIO_LED_SYS		28
 #define DRAGINO2_GPIO_BTN_JUMPSTART	11
 #define DRAGINO2_GPIO_BTN_RESET		12
 
@@ -45,24 +46,24 @@
 #define DRAGINO2_WMAC_MAC_OFFSET	0x1002
 
 static struct gpio_led dragino2_leds_gpio[] __initdata = {
-	{
-		.name		= "dragino2:red:lan",
-		.gpio		= DRAGINO2_GPIO_LED_LAN,
-		.active_low	= 0,
-	},
 	{
 		.name		= "dragino2:red:wlan",
 		.gpio		= DRAGINO2_GPIO_LED_WLAN,
 		.active_low	= 0,
 	},
-		{
+	{
 		.name		= "dragino2:red:wan",
 		.gpio		= DRAGINO2_GPIO_LED_WAN,
-		.active_low	= 0,
+		.active_low	= 1,
 	},
 	{
-		.name		= "dragino2:red:usb",
-		.gpio		= DRAGINO2_GPIO_LED_USB,
+		.name		= "dragino2:red:lan",
+		.gpio		= DRAGINO2_GPIO_LED_LAN,
+		.active_low	= 1,
+	},
+	{
+		.name		= "dragino2:red:system",
+		.gpio		= DRAGINO2_GPIO_LED_SYS,
 		.active_low	= 0,
 	},
 };
@@ -99,15 +100,23 @@ static void __init dragino2_common_setup(void)
 
 	ath79_register_mdio(0, 0x0);
 
-	/* Enable GPIO15 and GPIO16 and possibly GPIO26 and GPIO27 */
-	ath79_gpio_function_disable(AR933X_GPIO_FUNC_ETH_SWITCH_LED2_EN |
-				    AR933X_GPIO_FUNC_ETH_SWITCH_LED3_EN);
+	/* Enable GPIO13, GPIO14, GPIO15, GPIO16 and GPIO17 */
+	ath79_gpio_function_disable(AR933X_GPIO_FUNC_ETH_SWITCH_LED0_EN |
+				    AR933X_GPIO_FUNC_ETH_SWITCH_LED1_EN |
+				    AR933X_GPIO_FUNC_ETH_SWITCH_LED2_EN |
+				    AR933X_GPIO_FUNC_ETH_SWITCH_LED3_EN |
+				    AR933X_GPIO_FUNC_ETH_SWITCH_LED4_EN);
 
-	/* LAN ports */
+	/* LAN port */
 	ath79_register_eth(1);
 
 	/* WAN port */
 	ath79_register_eth(0);
+
+	/* Enable GPIO26 and GPIO27 */
+	ath79_reset_wr(AR933X_RESET_REG_BOOTSTRAP,
+		       ath79_reset_rr(AR933X_RESET_REG_BOOTSTRAP) |
+		       AR933X_BOOTSTRAP_MDIO_GPIO_EN);
 }
 
 static void __init dragino2_setup(void)