ar71xx: add support for TP-Link TL-WA855RE v1

TP-Link TL-WA855RE v1 is a wall-plug N300 Wi-Fi range extender,
based on Qualcomm/Atheros QCA9533 v2.

Short specification:

- 550/397/198 MHz (CPU/DDR/AHB)
- 1x 10/100 Mbps Ethernet
- 32 MB of RAM (DDR1)
- 4 MB of FLASH
- 2T2R 2.4 GHz
- 2x external antennas
- 2x LED (green and orange in the same package), 2x button
- UART: TP5(TX) and TP4(RX) test points on PCB

Flash instruction: use "factory" image directly in vendor GUI.

Warning: this device does not include any kind of recovery mechanism
in the bootloader and disassembling process is not trivial.

You can access vendor firmware over serial line using:
- login: root
- password: sohoadmin

Image was tested only in EU version of the device, but should work
also with the same device version sold in other countries.

Signed-off-by: Federico Cappon <dududede371@gmail.com>

4 files changed, 44 insertions, 0 deletions

diff --git a/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt b/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
index 0df5a88dc3..0ae9a11ff6 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
+++ b/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
@@ -1503,6 +1503,15 @@ config ATH79_MACH_TL_WA850RE_V2
 	select ATH79_DEV_M25P80
 	select ATH79_DEV_WMAC
 
+config ATH79_MACH_TL_WA855RE_V1
+	bool "TP-LINK TL-WA855RE V1 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_WMAC
+
 config ATH79_MACH_TL_WA901ND
 	bool "TP-LINK TL-WA901ND/TL-WA7510N support"
 	select SOC_AR724X
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/Makefile b/target/linux/ar71xx/files/arch/mips/ath79/Makefile
index 5a848d0399..869920ca30 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/Makefile
+++ b/target/linux/ar71xx/files/arch/mips/ath79/Makefile
@@ -188,6 +188,7 @@ obj-$(CONFIG_ATH79_MACH_TL_WA7210N_V2)		+= mach-tl-wa7210n-v2.o
 obj-$(CONFIG_ATH79_MACH_TL_WA801ND_V3)		+= mach-tl-wa801nd-v3.o
 obj-$(CONFIG_ATH79_MACH_TL_WA830RE_V2)		+= mach-tl-wa830re-v2.o
 obj-$(CONFIG_ATH79_MACH_TL_WA850RE_V2)		+= mach-tl-wax50re.o
+obj-$(CONFIG_ATH79_MACH_TL_WA855RE_V1)		+= mach-tl-wax50re.o
 obj-$(CONFIG_ATH79_MACH_TL_WA901ND)		+= mach-tl-wa901nd.o
 obj-$(CONFIG_ATH79_MACH_TL_WA901ND_V2)		+= mach-tl-wa901nd-v2.o
 obj-$(CONFIG_ATH79_MACH_TL_WA901ND_V4)		+= mach-tl-wa901nd-v4.o
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wax50re.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wax50re.c
index d7a1af4e2c..955628fecb 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wax50re.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wax50re.c
@@ -3,11 +3,14 @@
  *  - TL-WA750RE v1
  *  - TL-WA801ND v2
  *  - TL-WA850RE v1/v2
+ *  - TL-WA855RE v1
  *  - TL-WA901ND v3
  *
  *  Copyright (C) 2013 Martijn Zilverschoon <thefriedzombie@gmail.com>
  *  Copyright (C) 2013 Jiri Pirko <jiri@resnulli.us>
  *  Copyright (C) 2017 Piotr Dymacz <pepe2k@gmail.com>
+ *  Copyright (C) 2017 Federico Cappon <dududede371@gmail.com>
+ *  Copyright (C) 2017 Nicolò Veronese <nicveronese@gmail.com>
  *
  *  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
@@ -48,6 +51,9 @@
 
 #define TL_WA850RE_V2_GPIO_ENABLE_LEDS	15
 
+#define TL_WA855REV1_GPIO_LED_RED	11
+#define TL_WA855REV1_GPIO_LED_GREEN	12
+
 #define TL_WA860RE_GPIO_LED_WLAN_ORANGE	0
 #define TL_WA860RE_GPIO_LED_WLAN_GREEN	2
 #define TL_WA860RE_GPIO_LED_POWER_ORANGE	12
@@ -184,6 +190,18 @@ static struct gpio_led tl_wa850re_v2_leds_gpio[] __initdata = {
 	},
 };
 
+static struct gpio_led tl_wa855re_v1_leds_gpio[] __initdata = {
+	 {
+		.name		= "tp-link:green:power",
+		.gpio		= TL_WA855REV1_GPIO_LED_GREEN,
+		.active_low	= 0,
+	}, {
+		.name		= "tp-link:red:power",
+		.gpio		= TL_WA855REV1_GPIO_LED_RED,
+		.active_low	= 0,
+	},
+};
+
 static struct gpio_led tl_wa860re_leds_gpio[] __initdata = {
 	{
 		.name		= "tp-link:green:lan",
@@ -383,6 +401,21 @@ static void  __init tl_wa850re_v2_setup(void)
 MIPS_MACHINE(ATH79_MACH_TL_WA850RE_V2, "TL-WA850RE-V2",
 	     "TP-LINK TL-WA850RE v2", tl_wa850re_v2_setup);
 
+static void __init tl_wa855re_v1_setup(void)
+{
+	tl_ap143_setup();
+
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(tl_wa855re_v1_leds_gpio),
+				 tl_wa855re_v1_leds_gpio);
+
+	ath79_register_gpio_keys_polled(-1, TL_WAX50RE_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(tl_wax50re_gpio_keys),
+					tl_wax50re_gpio_keys);
+}
+
+MIPS_MACHINE(ATH79_MACH_TL_WA855RE_V1, "TL-WA855RE-v1", "TP-LINK TL-WA855RE v1",
+	     tl_wa855re_v1_setup);
+
 static void  __init tl_wa860re_setup(void)
 {
 	tl_ap123_setup();
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
index 8d0dfd662b..618abfb1dc 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
+++ b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
@@ -226,6 +226,7 @@ enum ath79_mach_type {
 	ATH79_MACH_TL_WA830RE_V2,		/* TP-LINK TL-WA830RE v2 */
 	ATH79_MACH_TL_WA850RE,			/* TP-LINK TL-WA850RE */
 	ATH79_MACH_TL_WA850RE_V2,		/* TP-LINK TL-WA850RE v2 */
+	ATH79_MACH_TL_WA855RE_V1,		/* TP-LINK TL-WA855RE v1 */
 	ATH79_MACH_TL_WA860RE,			/* TP-LINK TL-WA860RE */
 	ATH79_MACH_TL_WA901ND,			/* TP-LINK TL-WA901ND */
 	ATH79_MACH_TL_WA901ND_V2,		/* TP-LINK TL-WA901ND v2 */