ar71xx: add support for TP-Link TL-MR11U

Adds support for TL-MR11U, a portable router with very similar
hardware to the TL-WR703N and TL-MR3020, but with an onboard
2000mAh battery.

Tested, working:
All interfaces (Ethernet, 802.11n, USB)
WPS & Reset switches (Power appears to be a hardware slider)
Ethernet, Wifi, 3G LEDs (Power & charging LEDs hardware controlled)
Sysupgrade

[juhosg: fix indentations to use TABs instead of spaces, fix 3.2 patch
breakage]

Signed-off-by: Simon Taylor <simon.taylor.uk@gmail.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@29972 3c298f89-4303-0410-b956-a3cf2f4a3e73

4 files changed, 118 insertions, 0 deletions

diff --git a/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/Kconfig b/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/Kconfig
index cf1664e76e..60db3ef415 100644
--- a/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/Kconfig
+++ b/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/Kconfig
@@ -312,6 +312,15 @@ config AR71XX_MACH_NBG460N
 	select AR71XX_DEV_GPIO_BUTTONS
 	select AR71XX_DEV_LEDS_GPIO
 
+config AR71XX_MACH_TL_MR11U
+        bool "TP-LINK TL-MR11U support"
+        select SOC_AR933X
+        select AR71XX_DEV_M25P80
+        select AR71XX_DEV_GPIO_BUTTONS
+        select AR71XX_DEV_LEDS_GPIO
+        select AR71XX_DEV_USB
+        select AR71XX_DEV_AR9XXX_WMAC
+
 config AR71XX_MACH_TL_MR3020
 	bool "TP-LINK TL-MR3020 support"
 	select SOC_AR933X
diff --git a/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/Makefile b/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/Makefile
index 9b36bcfbba..22e32e5acc 100644
--- a/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/Makefile
+++ b/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/Makefile
@@ -56,6 +56,7 @@ obj-$(CONFIG_AR71XX_MACH_RB4XX)		+= mach-rb4xx.o
 obj-$(CONFIG_AR71XX_MACH_RB750)		+= mach-rb750.o
 obj-$(CONFIG_AR71XX_MACH_RW2458N)	+= mach-rw2458n.o
 obj-$(CONFIG_AR71XX_MACH_TEW_632BRP)	+= mach-tew-632brp.o
+obj-$(CONFIG_AR71XX_MACH_TL_MR11U)     += mach-tl-mr11u.o
 obj-$(CONFIG_AR71XX_MACH_TL_MR3020)	+= mach-tl-mr3020.o
 obj-$(CONFIG_AR71XX_MACH_TL_MR3X20)	+= mach-tl-mr3x20.o
 obj-$(CONFIG_AR71XX_MACH_TL_WA901ND)	+= mach-tl-wa901nd.o
diff --git a/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/mach-tl-mr11u.c b/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/mach-tl-mr11u.c
new file mode 100644
index 0000000000..427af169fc
--- /dev/null
+++ b/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/mach-tl-mr11u.c
@@ -0,0 +1,107 @@
+/*
+ *  TP-LINK TL-MR11U board support
+ *
+ *  Copyright (C) 2011 dongyuqi <729650915@qq.com>
+ *  Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
+ *
+ *  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
+ *  by the Free Software Foundation.
+ */
+
+#include <linux/gpio.h>
+
+#include <asm/mach-ar71xx/ar71xx.h>
+
+#include "machtype.h"
+#include "devices.h"
+#include "dev-ar9xxx-wmac.h"
+#include "dev-gpio-buttons.h"
+#include "dev-leds-gpio.h"
+#include "dev-m25p80.h"
+#include "dev-usb.h"
+
+#define TL_MR11U_GPIO_LED_3G		27
+#define TL_MR11U_GPIO_LED_WLAN		26
+#define TL_MR11U_GPIO_LED_LAN		17
+
+#define TL_MR11U_GPIO_BTN_WPS		20
+#define TL_MR11U_GPIO_BTN_RESET		11
+
+#define TL_MR11U_GPIO_USB_POWER	8
+
+#define TL_MR11U_KEYS_POLL_INTERVAL	20	/* msecs */
+#define TL_MR11U_KEYS_DEBOUNCE_INTERVAL	(3 * TL_MR11U_KEYS_POLL_INTERVAL)
+
+static const char *tl_mr11u_part_probes[] = {
+	"tp-link",
+	NULL,
+};
+
+static struct flash_platform_data tl_mr11u_flash_data = {
+	.part_probes	= tl_mr11u_part_probes,
+};
+
+static struct gpio_led tl_mr11u_leds_gpio[] __initdata = {
+	{
+		.name		= "tp-link:green:3g",
+		.gpio		= TL_MR11U_GPIO_LED_3G,
+		.active_low	= 1,
+	},
+	{
+		.name		= "tp-link:green:wlan",
+		.gpio		= TL_MR11U_GPIO_LED_WLAN,
+		.active_low	= 1,
+	},
+	{
+		.name		= "tp-link:green:lan",
+		.gpio		= TL_MR11U_GPIO_LED_LAN,
+		.active_low	= 1,
+	}
+};
+
+static struct gpio_keys_button tl_mr11u_gpio_keys[] __initdata = {
+	{
+		.desc		= "wps",
+		.type		= EV_KEY,
+		.code		= KEY_WPS_BUTTON,
+		.debounce_interval = TL_MR11U_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= TL_MR11U_GPIO_BTN_WPS,
+		.active_low	= 0,
+	},
+	{
+		.desc		= "reset",
+		.type		= EV_KEY,
+		.code		= KEY_RESTART,
+		.debounce_interval = TL_MR11U_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= TL_MR11U_GPIO_BTN_RESET,
+		.active_low	= 0,
+	}
+};
+
+static void __init tl_mr11u_setup(void)
+{
+	u8 *mac = (u8 *) KSEG1ADDR(0x1f01fc00);
+	u8 *ee = (u8 *) KSEG1ADDR(0x1fff1000);
+
+	ar71xx_add_device_m25p80(&tl_mr11u_flash_data);
+	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(tl_mr11u_leds_gpio),
+					tl_mr11u_leds_gpio);
+	ar71xx_register_gpio_keys_polled(-1, TL_MR11U_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(tl_mr11u_gpio_keys),
+					 tl_mr11u_gpio_keys);
+
+	gpio_request(TL_MR11U_GPIO_USB_POWER, "USB power");
+	gpio_direction_output(TL_MR11U_GPIO_USB_POWER, 1);
+	ar71xx_add_device_usb();
+
+	ar71xx_init_mac(ar71xx_eth0_data.mac_addr, mac, 0);
+
+	ar71xx_add_device_mdio(0, 0x0);
+	ar71xx_add_device_eth(0);
+
+	ar9xxx_add_device_wmac(ee, mac);
+}
+
+MIPS_MACHINE(AR71XX_MACH_TL_MR11U, "TL-MR11U", "TP-LINK TL-MR11U",
+	     tl_mr11u_setup);
diff --git a/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/machtype.h b/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/machtype.h
index 1be8dbbf34..452055d78f 100644
--- a/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/machtype.h
+++ b/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/machtype.h
@@ -52,6 +52,7 @@ enum ar71xx_mach_type {
 	AR71XX_MACH_RB_750,	/* MikroTik RouterBOARD 750 */
 	AR71XX_MACH_RW2458N,	/* Redwave RW2458N */
 	AR71XX_MACH_TEW_632BRP,	/* TRENDnet TEW-632BRP */
+	AR71XX_MACH_TL_MR11U,  /* TP-LINK TL-MR11U */
 	AR71XX_MACH_TL_MR3020,  /* TP-LINK TL-MR3020 */
 	AR71XX_MACH_TL_MR3220,	/* TP-LINK TL-MR3220 */
 	AR71XX_MACH_TL_MR3420,	/* TP-LINK TL-MR3420 */