ar71xx: Add support for TP-Link MR6400

You can flash via tftp recovery (serve factory image as /mr6400_tp_recovery.bin
on 192.168.0.66/24, connect to any ethernet port and power on device while
holding the reset button). Flashing via OEM web interface does not work.

Hardware Specification (v1.0 EU):
 - SoC: QCA9531
 - Flash: Winbond W25Q64FV (8MiB)
 - RAM: EtronTech EM6AB160TSE-5G (64MiB)
 - Wireless: SoC platform only (2.4GHz b/g/n, 2x internal antenna)
 - Ethernet: 2NIC (3x100M + 1x100M)
 - WWAN: TP-LINK LTE MODULE (2x external detachable antenna)
 - Power: DC 12V 1A

Signed-off-by: Filip Moc <lede@moc6.cz>

13 files changed, 197 insertions, 0 deletions

diff --git a/target/linux/ar71xx/base-files/etc/board.d/01_leds b/target/linux/ar71xx/base-files/etc/board.d/01_leds
index 2f3e5efd57..520a5cdb05 100755
--- a/target/linux/ar71xx/base-files/etc/board.d/01_leds
+++ b/target/linux/ar71xx/base-files/etc/board.d/01_leds
@@ -603,6 +603,12 @@ tl-wr941nd-v5)
 		;;
 	esac
 	;;
+tl-mr6400)
+	ucidef_set_led_netdev "lan" "LAN" "tp-link:white:lan" "eth0"
+	ucidef_set_led_netdev "wan" "WAN" "tp-link:white:wan" "eth1"
+	ucidef_set_led_netdev "4g" "4G" "tp-link:white:4g" "usb0"
+	ucidef_set_led_wlan "wlan" "WLAN" "tp-link:white:wlan" "phy0tpt"
+	;;
 tl-wa7210n-v2)
 	ucidef_set_led_netdev "lan" "LAN" "tp-link:green:lan" "eth0"
 	ucidef_set_rssimon "wlan0" "200000" "1"
diff --git a/target/linux/ar71xx/base-files/etc/board.d/02_network b/target/linux/ar71xx/base-files/etc/board.d/02_network
index 2737129eb6..6f72fc73f7 100755
--- a/target/linux/ar71xx/base-files/etc/board.d/02_network
+++ b/target/linux/ar71xx/base-files/etc/board.d/02_network
@@ -311,6 +311,11 @@ ar71xx_setup_interfaces()
 		ucidef_add_switch "switch0" \
 			"0@eth1" "1:lan:1" "2:lan:2" "3:lan:3" "4:lan:4"
 		;;
+	tl-mr6400)
+		ucidef_set_interfaces_lan_wan "eth0.1 eth1" "usb0"
+		ucidef_add_switch "switch0" \
+			"0@eth0" "1:lan" "2:lan" "3:lan"
+		;;
 	dir-825-b1|\
 	nbg460n_550n_550nh|\
 	tew-673gru|\
diff --git a/target/linux/ar71xx/base-files/etc/diag.sh b/target/linux/ar71xx/base-files/etc/diag.sh
index 9cad8995db..7a2cf927ff 100644
--- a/target/linux/ar71xx/base-files/etc/diag.sh
+++ b/target/linux/ar71xx/base-files/etc/diag.sh
@@ -366,6 +366,9 @@ get_status_led() {
 	tl-wa860re)
 		status_led="tp-link:green:power"
 		;;
+	tl-mr6400)
+		status_led="tp-link:white:power"
+		;;
 	tl-mr3220|\
 	tl-mr3220-v2|\
 	tl-mr3420|\
diff --git a/target/linux/ar71xx/base-files/lib/ar71xx.sh b/target/linux/ar71xx/base-files/lib/ar71xx.sh
index a751c64a3a..b3de55d274 100755
--- a/target/linux/ar71xx/base-files/lib/ar71xx.sh
+++ b/target/linux/ar71xx/base-files/lib/ar71xx.sh
@@ -309,6 +309,9 @@ tplink_board_detect() {
 	"49000002")
 		model="TP-Link TL-WDR4900"
 		;;
+	"640000"*)
+		model="TP-Link TL-MR6400"
+		;;
 	"65000002")
 		model="TP-Link TL-WDR6500"
 		;;
@@ -1016,6 +1019,9 @@ ar71xx_board_detect() {
 	*"TL-MR3420 v2")
 		name="tl-mr3420-v2"
 		;;
+	*TL-MR6400)
+		name="tl-mr6400"
+		;;
 	*"TL-WA701ND v2")
 		name="tl-wa701nd-v2"
 		;;
diff --git a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
index e246f35add..c70351c1f3 100755
--- a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
@@ -398,6 +398,7 @@ platform_check_image() {
 	tl-mr3220|\
 	tl-mr3420-v2|\
 	tl-mr3420|\
+	tl-mr6400|\
 	tl-wa701nd-v2|\
 	tl-wa7210n-v2|\
 	tl-wa750re|\
diff --git a/target/linux/ar71xx/config-4.4 b/target/linux/ar71xx/config-4.4
index 0a375862ba..298b3ebcbb 100644
--- a/target/linux/ar71xx/config-4.4
+++ b/target/linux/ar71xx/config-4.4
@@ -174,6 +174,7 @@ CONFIG_ATH79_MACH_TL_MR11U=y
 CONFIG_ATH79_MACH_TL_MR13U=y
 CONFIG_ATH79_MACH_TL_MR3020=y
 CONFIG_ATH79_MACH_TL_MR3X20=y
+CONFIG_ATH79_MACH_TL_MR6400=y
 CONFIG_ATH79_MACH_TL_WA701ND_V2=y
 CONFIG_ATH79_MACH_TL_WA7210N_V2=y
 CONFIG_ATH79_MACH_TL_WA801ND_V3=y
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt b/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
index 9030954c27..813d01a569 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
+++ b/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
@@ -1417,6 +1417,16 @@ config ATH79_MACH_TL_MR3X20
 	select ATH79_DEV_M25P80
 	select ATH79_DEV_USB
 
+config ATH79_MACH_TL_MR6400
+	bool "TP-LINK TL-MR6400 support"
+	select SOC_QCA953X
+	select ATH79_DEV_ETH
+	select ATH79_DEV_GPIO_BUTTONS
+	select ATH79_DEV_LEDS_GPIO
+	select ATH79_DEV_M25P80
+	select ATH79_DEV_USB
+	select ATH79_DEV_WMAC
+
 config ATH79_MACH_TL_WAX50RE
 	bool "TP-LINK TL-WA750/850RE support"
 	select SOC_AR934X
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/Makefile b/target/linux/ar71xx/files/arch/mips/ath79/Makefile
index 2868adcaef..bc3f6819be 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/Makefile
+++ b/target/linux/ar71xx/files/arch/mips/ath79/Makefile
@@ -179,6 +179,7 @@ obj-$(CONFIG_ATH79_MACH_TL_MR11U)		+= mach-tl-mr11u.o
 obj-$(CONFIG_ATH79_MACH_TL_MR13U)		+= mach-tl-mr13u.o
 obj-$(CONFIG_ATH79_MACH_TL_MR3020)		+= mach-tl-mr3020.o
 obj-$(CONFIG_ATH79_MACH_TL_MR3X20)		+= mach-tl-mr3x20.o
+obj-$(CONFIG_ATH79_MACH_TL_MR6400)		+= mach-tl-mr6400.o
 obj-$(CONFIG_ATH79_MACH_TL_WA701ND_V2)		+= mach-tl-wa701nd-v2.o
 obj-$(CONFIG_ATH79_MACH_TL_WA7210N_V2)		+= mach-tl-wa7210n-v2.o
 obj-$(CONFIG_ATH79_MACH_TL_WA801ND_V3)		+= mach-tl-wa801nd-v3.o
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-mr6400.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-mr6400.c
new file mode 100644
index 0000000000..be49c89cab
--- /dev/null
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-mr6400.c
@@ -0,0 +1,151 @@
+/*
+ * TP-LINK TL-MR6400 board support
+ *
+ *  Copyright (C) 2017 Filip Moc <lede@moc6.cz>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * The name of the author may not be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DAMAGES ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE.
+ */
+
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach-ath79/ar71xx_regs.h>
+
+#include "common.h"
+#include "dev-gpio-buttons.h"
+#include "dev-eth.h"
+#include "dev-leds-gpio.h"
+#include "dev-m25p80.h"
+#include "dev-usb.h"
+#include "dev-wmac.h"
+#include "machtypes.h"
+
+#define TL_MR6400_GPIO_LTE_POWER	4
+#define TL_MR6400_GPIO_BTN_RESET	12	/* SW2 */
+#define TL_MR6400_GPIO_BTN_RFKILL	14	/* SW3 */
+#define TL_MR6400_GPIO_LED_WAN		0	/* D12 */
+#define TL_MR6400_GPIO_LED_4G		1	/* D11 */
+#define TL_MR6400_GPIO_LED_WPS		3	/* D5  */
+#define TL_MR6400_GPIO_LED_WLAN		11	/* D3  */
+#define TL_MR6400_GPIO_LED_POWER	13	/* D2  */
+#define TL_MR6400_GPIO_LED_LAN		16	/* D4  */
+
+#define TL_MR6400_KEYS_POLL_INTERVAL	20 /* msecs */
+#define TL_MR6400_KEYS_DEBOUNCE_INTERVAL (3 * TL_MR6400_KEYS_POLL_INTERVAL)
+
+#define TL_MR6400_WMAC_CALDATA_OFFSET	0x1000
+
+static const char *tl_mr6400_part_probes[] = {
+	"tp-link",
+	NULL,
+};
+
+static struct flash_platform_data tl_mr6400_flash_data = {
+	.part_probes	= tl_mr6400_part_probes,
+	.type		= "w25q64",
+};
+
+static struct gpio_led tl_mr6400_leds_gpio[] __initdata = {
+	{
+		.name		= "tp-link:white:wan",
+		.gpio		= TL_MR6400_GPIO_LED_WAN,
+		.active_low	= 0,
+	},
+	{
+		.name		= "tp-link:white:4g",
+		.gpio		= TL_MR6400_GPIO_LED_4G,
+		.active_low	= 0,
+	},
+	{
+		.name		= "tp-link:white:wps",
+		.gpio		= TL_MR6400_GPIO_LED_WPS,
+		.active_low	= 0,
+	},
+	{
+		.name		= "tp-link:white:wlan",
+		.gpio		= TL_MR6400_GPIO_LED_WLAN,
+		.active_low	= 0,
+	},
+	{
+		.name		= "tp-link:white:power",
+		.gpio		= TL_MR6400_GPIO_LED_POWER,
+		.active_low	= 0,
+	},
+	{
+		.name		= "tp-link:white:lan",
+		.gpio		= TL_MR6400_GPIO_LED_LAN,
+		.active_low	= 0,
+	},
+};
+
+static struct gpio_keys_button tl_mr6400_gpio_keys[] __initdata = {
+	{
+		.desc		= "reset",
+		.type		= EV_KEY,
+		.code		= KEY_RESTART,
+		.debounce_interval = TL_MR6400_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= TL_MR6400_GPIO_BTN_RESET,
+		.active_low	= 1,
+	},
+	{
+		.desc		= "rfkill",
+		.type		= EV_KEY,
+		.code		= KEY_RFKILL,
+		.debounce_interval = TL_MR6400_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= TL_MR6400_GPIO_BTN_RFKILL,
+		.active_low	= 1,
+	},
+};
+
+static void __init tl_mr6400_setup(void)
+{
+	u8 *mac = (u8 *) KSEG1ADDR(0x1f01fc00);
+	u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
+
+	ath79_register_m25p80(&tl_mr6400_flash_data);
+
+	ath79_register_mdio(0, 0x0);
+
+	/* LAN1, LAN2, LAN3 */
+	ath79_switch_data.phy4_mii_en = 1;
+	ath79_switch_data.phy_poll_mask |= BIT(0);
+	ath79_eth1_data.duplex = DUPLEX_FULL;
+	ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
+	ath79_eth1_data.speed = SPEED_1000;
+	ath79_init_mac(ath79_eth1_data.mac_addr, mac, -1);
+	ath79_register_eth(1);
+
+	/* LAN4 / WAN */
+	ath79_eth0_data.phy_mask = BIT(0);
+	ath79_eth0_data.duplex = DUPLEX_FULL;
+	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
+	ath79_eth0_data.speed = SPEED_100;
+	ath79_init_mac(ath79_eth0_data.mac_addr, mac, 1);
+	ath79_register_eth(0);
+
+	ath79_register_wmac(art + TL_MR6400_WMAC_CALDATA_OFFSET, mac);
+
+	ath79_register_leds_gpio(-1,
+				 ARRAY_SIZE(tl_mr6400_leds_gpio),
+				 tl_mr6400_leds_gpio);
+
+	ath79_register_gpio_keys_polled(-1,
+					TL_MR6400_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(tl_mr6400_gpio_keys),
+					tl_mr6400_gpio_keys);
+
+	gpio_request_one(TL_MR6400_GPIO_LTE_POWER,
+			 GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED | GPIOF_ACTIVE_LOW,
+			 "LTE power");
+	ath79_register_usb();
+}
+
+MIPS_MACHINE(ATH79_MACH_TL_MR6400, "TL-MR6400", "TP-LINK TL-MR6400",
+	     tl_mr6400_setup);
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
index 18033acd12..841badc14f 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
+++ b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
@@ -213,6 +213,7 @@ enum ath79_mach_type {
 	ATH79_MACH_TL_MR3220_V2,		/* TP-LINK TL-MR3220 v2 */
 	ATH79_MACH_TL_MR3420,			/* TP-LINK TL-MR3420 */
 	ATH79_MACH_TL_MR3420_V2,		/* TP-LINK TL-MR3420 v2 */
+	ATH79_MACH_TL_MR6400,			/* TP-LINK TL-MR6400 */
 	ATH79_MACH_TL_WA701ND_V2,		/* TP-LINK TL-WA701ND v2 */
 	ATH79_MACH_TL_WA7210N_V2,		/* TP-LINK TL-WA7210N v2 */
 	ATH79_MACH_TL_WA750RE,			/* TP-LINK TL-WA750RE */
diff --git a/target/linux/ar71xx/image/tp-link.mk b/target/linux/ar71xx/image/tp-link.mk
index 6ddf05239d..f27ceec3e9 100644
--- a/target/linux/ar71xx/image/tp-link.mk
+++ b/target/linux/ar71xx/image/tp-link.mk
@@ -452,6 +452,16 @@ define Device/tl-mr3420-v2
 endef
 TARGET_DEVICES += tl-mr3020-v1 tl-mr3040-v1 tl-mr3040-v2 tl-mr3220-v1 tl-mr3220-v2 tl-mr3420-v1 tl-mr3420-v2
 
+define Device/tl-mr6400-v1
+  $(Device/tplink-8mlzma)
+  DEVICE_TITLE := TP-LINK TL-MR6400 v1
+  DEVICE_PACKAGES := kmod-usb-core kmod-usb2 kmod-usb-net kmod-usb-net-rndis kmod-usb-serial kmod-usb-serial-option adb
+  BOARDNAME := TL-MR6400
+  DEVICE_PROFILE := TLMR6400
+  TPLINK_HWID := 0x64000001
+endef
+TARGET_DEVICES += tl-mr6400-v1
+
 define Device/tl-wpa8630-v1
   $(Device/tplink-8mlzma)
   DEVICE_TITLE := TP-LINK TL-WPA8630 v1
diff --git a/target/linux/ar71xx/mikrotik/config-default b/target/linux/ar71xx/mikrotik/config-default
index ecaa6e53d0..216ffa27cb 100644
--- a/target/linux/ar71xx/mikrotik/config-default
+++ b/target/linux/ar71xx/mikrotik/config-default
@@ -137,6 +137,7 @@ CONFIG_ATH79_MACH_RBSXTLITE=y
 # CONFIG_ATH79_MACH_TL_MR13U is not set
 # CONFIG_ATH79_MACH_TL_MR3020 is not set
 # CONFIG_ATH79_MACH_TL_MR3X20 is not set
+# CONFIG_ATH79_MACH_TL_MR6400 is not set
 # CONFIG_ATH79_MACH_TL_WA701ND_V2 is not set
 # CONFIG_ATH79_MACH_TL_WA7210N_V2 is not set
 # CONFIG_ATH79_MACH_TL_WA801ND_V3 is not set
diff --git a/target/linux/ar71xx/nand/config-default b/target/linux/ar71xx/nand/config-default
index f744da80c1..8c7d445282 100644
--- a/target/linux/ar71xx/nand/config-default
+++ b/target/linux/ar71xx/nand/config-default
@@ -126,6 +126,7 @@ CONFIG_ATH79_MACH_RAMBUTAN=y
 # CONFIG_ATH79_MACH_TL_MR13U is not set
 # CONFIG_ATH79_MACH_TL_MR3020 is not set
 # CONFIG_ATH79_MACH_TL_MR3X20 is not set
+# CONFIG_ATH79_MACH_TL_MR6400 is not set
 # CONFIG_ATH79_MACH_TL_WA701ND_V2 is not set
 # CONFIG_ATH79_MACH_TL_WA7210N_V2 is not set
 # CONFIG_ATH79_MACH_TL_WA801ND_V3 is not set