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>

Backport of r42897

git-svn-id: svn://svn.openwrt.org/openwrt/branches/barrier_breaker@43867 3c298f89-4303-0410-b956-a3cf2f4a3e73

3 files changed, 35 insertions, 17 deletions

diff --git a/target/linux/ar71xx/base-files/etc/diag.sh b/target/linux/ar71xx/base-files/etc/diag.sh
index 1864b11a27..fa07f39f14 100755
--- a/target/linux/ar71xx/base-files/etc/diag.sh
+++ b/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"
 		;;
diff --git a/target/linux/ar71xx/base-files/etc/uci-defaults/01_leds b/target/linux/ar71xx/base-files/etc/uci-defaults/01_leds
index d3b766d4d8..5b9dbe7d70 100755
--- a/target/linux/ar71xx/base-files/etc/uci-defaults/01_leds
+++ b/target/linux/ar71xx/base-files/etc/uci-defaults/01_leds
@@ -65,6 +65,12 @@ 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"
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-dragino2.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-dragino2.c
index 156fbe50eb..95bd6f41a3 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/mach-dragino2.c
+++ b/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
 
@@ -46,23 +47,23 @@
 
 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)