ar71xx: add kernel support for the TL-MR10U board

Based on andelf's patch:
http://andelf.diandian.com/post/2013-05-22/40050677370

[juhosg: extend WR703N code to handle the TL-MR10U
instead of adding a separate mach-tl-mr10u file]]

Signed-off-by: Oleg Titov <oleg.titov@gmail.com>
Patchwork: http://patchwork.openwrt.org/patch/3840/
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 37547

target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wr703n.c

@@ -1,5 +1,5 @@
 /*
- *  TP-LINK TL-WR703N board support
+ *  TP-LINK TL-WR703N/TL-MR10U board support
  *
  *  Copyright (C) 2011 dongyuqi <729650915@qq.com>
  *  Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org>
@@ -26,6 +26,8 @@
 
 #define TL_WR703N_GPIO_USB_POWER	8
 
+#define TL_MR10U_GPIO_USB_POWER		18
+
 #define TL_WR703N_KEYS_POLL_INTERVAL	20	/* msecs */
 #define TL_WR703N_KEYS_DEBOUNCE_INTERVAL	(3 * TL_WR703N_KEYS_POLL_INTERVAL)
 
@@ -57,7 +59,7 @@ static struct gpio_keys_button tl_wr703n_gpio_keys[] __initdata = {
 	}
 };
 
-static void __init tl_wr703n_setup(void)
+static void __init common_setup(unsigned usb_power_gpio)
 {
 	u8 *mac = (u8 *) KSEG1ADDR(0x1f01fc00);
 	u8 *ee = (u8 *) KSEG1ADDR(0x1fff1000);
@@ -72,7 +74,7 @@ static void __init tl_wr703n_setup(void)
 					ARRAY_SIZE(tl_wr703n_gpio_keys),
 					tl_wr703n_gpio_keys);
 
-	gpio_request_one(TL_WR703N_GPIO_USB_POWER,
+	gpio_request_one(usb_power_gpio,
 			 GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
 			 "USB power");
 	ath79_register_usb();
@@ -85,5 +87,18 @@ static void __init tl_wr703n_setup(void)
 	ath79_register_wmac(ee, mac);
 }
 
+static void __init tl_mr10u_setup(void)
+{
+	common_setup(TL_MR10U_GPIO_USB_POWER);
+}
+
+MIPS_MACHINE(ATH79_MACH_TL_MR10U, "TL-MR10U", "TP-LINK TL-MR10U",
+	     tl_mr10u_setup);
+
+static void __init tl_wr703n_setup(void)
+{
+	common_setup(TL_WR703N_GPIO_USB_POWER);
+}
+
 MIPS_MACHINE(ATH79_MACH_TL_WR703N, "TL-WR703N", "TP-LINK TL-WR703N v1",
 	     tl_wr703n_setup);

target/linux/ar71xx/patches-3.10/620-MIPS-ath79-TL-MR10U-support.patch

@@ -0,0 +1,21 @@
+--- a/arch/mips/ath79/Kconfig
++++ b/arch/mips/ath79/Kconfig
+@@ -577,7 +577,7 @@ config ATH79_MACH_TL_WDR4300
+ 	select ATH79_DEV_WMAC
+ 
+ config ATH79_MACH_TL_WR703N
+-	bool "TP-LINK TL-WR703N support"
++	bool "TP-LINK TL-WR703N/TL-MR10U support"
+ 	select SOC_AR933X
+ 	select ATH79_DEV_ETH
+ 	select ATH79_DEV_GPIO_BUTTONS
+--- a/arch/mips/ath79/machtypes.h
++++ b/arch/mips/ath79/machtypes.h
+@@ -81,6 +81,7 @@ enum ath79_mach_type {
+ 	ATH79_MACH_TEW_632BRP,		/* TRENDnet TEW-632BRP */
+ 	ATH79_MACH_TEW_673GRU,		/* TRENDnet TEW-673GRU */
+ 	ATH79_MACH_TEW_712BR,		/* TRENDnet TEW-712BR */
++	ATH79_MACH_TL_MR10U,		/* TP-LINK TL-MR10U */
+ 	ATH79_MACH_TL_MR11U,		/* TP-LINK TL-MR11U */
+ 	ATH79_MACH_TL_MR3020,		/* TP-LINK TL-MR3020 */
+ 	ATH79_MACH_TL_MR3040,		/* TP-LINK TL-MR3040 */