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>

12 files changed, 75 insertions, 6 deletions

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 709030ceb3..a7a9921faf 100755
--- a/target/linux/ar71xx/base-files/etc/board.d/02_network
+++ b/target/linux/ar71xx/base-files/etc/board.d/02_network
@@ -117,6 +117,7 @@ ar71xx_setup_interfaces()
 	tl-wa830re-v2|\
 	tl-wa850re|\
 	tl-wa850re-v2|\
+	tl-wa855re-v1)|\
 	tl-wa901nd|\
 	tl-wa901nd-v2|\
 	tl-wa901nd-v3|\
diff --git a/target/linux/ar71xx/base-files/etc/diag.sh b/target/linux/ar71xx/base-files/etc/diag.sh
index 936a1148d0..0bb338a573 100644
--- a/target/linux/ar71xx/base-files/etc/diag.sh
+++ b/target/linux/ar71xx/base-files/etc/diag.sh
@@ -369,6 +369,7 @@ get_status_led() {
 	tl-wa850re-v2)
 		status_led="tp-link:blue:re"
 		;;
+	tl-wa855re-v1|\
 	tl-wa860re)
 		status_led="tp-link:green:power"
 		;;
diff --git a/target/linux/ar71xx/base-files/lib/ar71xx.sh b/target/linux/ar71xx/base-files/lib/ar71xx.sh
index ecc8dab36c..3f781a8e5c 100755
--- a/target/linux/ar71xx/base-files/lib/ar71xx.sh
+++ b/target/linux/ar71xx/base-files/lib/ar71xx.sh
@@ -234,6 +234,9 @@ tplink_board_detect() {
 	"085000"*)
 		model="TP-Link TL-WA850RE"
 		;;
+	"085500"*)
+		model="TP-Link TL-WA855RE"
+		;;
 	"086000"*)
 		model="TP-Link TL-WA860RE"
 		;;
@@ -1058,6 +1061,9 @@ ar71xx_board_detect() {
 	*"TL-WA850RE v2")
 		name="tl-wa850re-v2"
 		;;
+	*"TL-WA855RE v1")
+		name="tl-wa855re-v1"
+		;;
 	*"TL-WA860RE")
 		name="tl-wa860re"
 		;;
diff --git a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
index 60e41c862e..454af2c3e6 100755
--- a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
@@ -411,6 +411,7 @@ platform_check_image() {
 	tl-wa830re-v2|\
 	tl-wa850re|\
 	tl-wa850re-v2|\
+	tl-wa855re-v1|\
 	tl-wa860re|\
 	tl-wa901nd-v2|\
 	tl-wa901nd-v3|\
diff --git a/target/linux/ar71xx/config-4.4 b/target/linux/ar71xx/config-4.4
index 6ff9700cdc..8be13e16cd 100644
--- a/target/linux/ar71xx/config-4.4
+++ b/target/linux/ar71xx/config-4.4
@@ -183,6 +183,7 @@ CONFIG_ATH79_MACH_TL_WA7210N_V2=y
 CONFIG_ATH79_MACH_TL_WA801ND_V3=y
 CONFIG_ATH79_MACH_TL_WA830RE_V2=y
 CONFIG_ATH79_MACH_TL_WA850RE_V2=y
+CONFIG_ATH79_MACH_TL_WA855RE_V1=y
 CONFIG_ATH79_MACH_TL_WA901ND=y
 CONFIG_ATH79_MACH_TL_WA901ND_V2=y
 CONFIG_ATH79_MACH_TL_WA901ND_V4=y
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 */
diff --git a/target/linux/ar71xx/image/tp-link.mk b/target/linux/ar71xx/image/tp-link.mk
index a9c3cdd961..243c15a858 100644
--- a/target/linux/ar71xx/image/tp-link.mk
+++ b/target/linux/ar71xx/image/tp-link.mk
@@ -496,18 +496,31 @@ define Device/tl-wa850re-v1
   TPLINK_HWID := 0x08500001
 endef
 
-define Device/tl-wa850re-v2
+define Device/tl-wa85xre
   $(Device/tplink)
+  KERNEL := kernel-bin | patch-cmdline | lzma | mktplinkfw-kernel
+  IMAGE/sysupgrade.bin := append-rootfs | tplink-safeloader sysupgrade
+  IMAGE/factory.bin := append-rootfs | tplink-safeloader factory
+  MTDPARTS := spi0.0:128k(u-boot)ro,1344k(kernel),2304k(rootfs),256k(config)ro,64k(art)ro,3648k@0x20000(firmware)
+endef
+
+define Device/tl-wa850re-v2
+  $(Device/tl-wa85xre)
   DEVICE_TITLE := TP-LINK TL-WA850RE v2
   DEVICE_PACKAGES := rssileds
   BOARDNAME := TL-WA850RE-V2
   DEVICE_PROFILE := TLWA850
   TPLINK_BOARD_NAME := TLWA850REV2
   TPLINK_HWID := 0x08500002
-  KERNEL := kernel-bin | patch-cmdline | lzma | mktplinkfw-kernel
-  IMAGE/sysupgrade.bin := append-rootfs | tplink-safeloader sysupgrade
-  IMAGE/factory.bin := append-rootfs | tplink-safeloader factory
-  MTDPARTS := spi0.0:128k(u-boot)ro,1344k(kernel),2304k(rootfs),256k(config)ro,64k(art)ro,3648k@0x20000(firmware)
+endef
+
+define Device/tl-wa855re-v1
+  $(Device/tl-wa85xre)
+  DEVICE_TITLE := TP-LINK TL-WA855RE v1
+  BOARDNAME := TL-WA855RE-v1
+  DEVICE_PROFILE := TLWA855RE
+  TPLINK_HWID := 0x08550001
+  TPLINK_BOARD_NAME := TLWA855REV1
 endef
 
 define Device/tl-wa860re-v1
@@ -517,7 +530,7 @@ define Device/tl-wa860re-v1
   DEVICE_PROFILE := TLWA860
   TPLINK_HWID := 0x08600001
 endef
-TARGET_DEVICES += tl-wa801nd-v1 tl-wa801nd-v2 tl-wa801nd-v3 tl-wa830re-v1 tl-wa830re-v2 tl-wa850re-v1 tl-wa850re-v2 tl-wa860re-v1
+TARGET_DEVICES += tl-wa801nd-v1 tl-wa801nd-v2 tl-wa801nd-v3 tl-wa830re-v1 tl-wa830re-v2 tl-wa850re-v1 tl-wa850re-v2 tl-wa855re-v1 tl-wa860re-v1
 
 define Device/tl-wa901nd-v1
   $(Device/tplink-4m)
diff --git a/target/linux/ar71xx/mikrotik/config-default b/target/linux/ar71xx/mikrotik/config-default
index d0c8e49189..6b87871b9a 100644
--- a/target/linux/ar71xx/mikrotik/config-default
+++ b/target/linux/ar71xx/mikrotik/config-default
@@ -146,6 +146,7 @@ CONFIG_ATH79_MACH_RBSXTLITE=y
 # CONFIG_ATH79_MACH_TL_WA801ND_V3 is not set
 # CONFIG_ATH79_MACH_TL_WA830RE_V2 is not set
 # CONFIG_ATH79_MACH_TL_WA850RE_V2 is not set
+# CONFIG_ATH79_MACH_TL_WA855RE_V1 is not set
 # CONFIG_ATH79_MACH_TL_WA901ND is not set
 # CONFIG_ATH79_MACH_TL_WA901ND_V2 is not set
 # CONFIG_ATH79_MACH_TL_WA901ND_V4 is not set
diff --git a/target/linux/ar71xx/nand/config-default b/target/linux/ar71xx/nand/config-default
index 8420e15fb4..0e1827663a 100644
--- a/target/linux/ar71xx/nand/config-default
+++ b/target/linux/ar71xx/nand/config-default
@@ -135,6 +135,7 @@ CONFIG_ATH79_MACH_RAMBUTAN=y
 # CONFIG_ATH79_MACH_TL_WA801ND_V3 is not set
 # CONFIG_ATH79_MACH_TL_WA830RE_V2 is not set
 # CONFIG_ATH79_MACH_TL_WA850RE_V2 is not set
+# CONFIG_ATH79_MACH_TL_WA855RE_V1 is not set
 # CONFIG_ATH79_MACH_TL_WA901ND is not set
 # CONFIG_ATH79_MACH_TL_WA901ND_V2 is not set
 # CONFIG_ATH79_MACH_TL_WA901ND_V4 is not set