ar71xx: add support for TP-LINK TL-WR840N v2 and v3

This patch adds support for the TP-LINK TL-WR840N v2 and v3.

- SoC: Qualcomm QCA9533-BL3A (650 MHz)
- RAM: 32 MiB (Zentel A3S56D40GTP)
- Flash: 4 MiB
   (v2: Macronix MX 25L323F)
   (v3: Winbond 25Q32FVSIG)
- LAN: 4x 100M
- WAN: 1x 100M

Signed-off-by: Vaclav Svoboda <svoboda@neng.cz>

4 files changed, 76 insertions, 1 deletions

diff --git a/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt b/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
index 5f81ebd7d6..d72c462f6e 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
+++ b/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
@@ -1568,6 +1568,15 @@ config ATH79_MACH_TL_WR810N
 	select ATH79_DEV_USB
 	select ATH79_DEV_WMAC
 
+config ATH79_MACH_TL_WR840N_V2
+	bool "TP-LINK TL-WR840N v2/v3 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_WR841N_V1
 	bool "TP-LINK TL-WR841N v1 support"
 	select SOC_AR71XX
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/Makefile b/target/linux/ar71xx/files/arch/mips/ath79/Makefile
index 73832448cd..7e1a71b34d 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/Makefile
+++ b/target/linux/ar71xx/files/arch/mips/ath79/Makefile
@@ -201,6 +201,7 @@ obj-$(CONFIG_ATH79_MACH_TL_WR741ND_V4)		+= mach-tl-wr741nd-v4.o
 obj-$(CONFIG_ATH79_MACH_TL_WR802N_V1)		+= mach-tl-wr802n.o
 obj-$(CONFIG_ATH79_MACH_TL_WR802N_V2)		+= mach-tl-wr802n-v2.o
 obj-$(CONFIG_ATH79_MACH_TL_WR810N)		+= mach-tl-wr810n.o
+obj-$(CONFIG_ATH79_MACH_TL_WR840N_V2)		+= mach-tl-wr841n-v9.o
 obj-$(CONFIG_ATH79_MACH_TL_WR841N_V1)		+= mach-tl-wr841n.o
 obj-$(CONFIG_ATH79_MACH_TL_WR841N_V8)		+= mach-tl-wr841n-v8.o
 obj-$(CONFIG_ATH79_MACH_TL_WR841N_V9)		+= mach-tl-wr841n-v9.o
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wr841n-v9.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wr841n-v9.c
index f806568f98..24a1a64352 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wr841n-v9.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wr841n-v9.c
@@ -1,9 +1,10 @@
 /*
- *  TP-LINK TL-WR841N/ND v9/v11 / TL-WR842N/ND v3
+ *  TP-LINK TL-WR840N v2/v3 / TL-WR841N/ND v9/v11 / TL-WR842N/ND v3
  *
  *  Copyright (C) 2014 Matthias Schiffer <mschiffer@universe-factory.net>
  *  Copyright (C) 2016 Cezary Jackiewicz <cezary@eko.one.pl>
  *  Copyright (C) 2016 Stijn Segers <francesco.borromini@gmail.com>
+ *  Copyright (C) 2017 Vaclav Svoboda <svoboda@neng.cz>
  *
  *  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
@@ -25,6 +26,14 @@
 #include "dev-wmac.h"
 #include "machtypes.h"
 
+#define TL_WR840NV2_GPIO_LED_SYSTEM	15
+#define TL_WR840NV2_GPIO_LED_WLAN	13
+#define TL_WR840NV2_GPIO_LED_WPS	3
+#define TL_WR840NV2_GPIO_LED_WAN	4
+#define TL_WR840NV2_GPIO_LED_LAN	16
+
+#define TL_WR840NV2_GPIO_BTN_RESET	12
+
 #define TL_WR841NV9_GPIO_LED_WLAN	13
 #define TL_WR841NV9_GPIO_LED_QSS	3
 #define TL_WR841NV9_GPIO_LED_WAN	4
@@ -75,6 +84,41 @@ static struct flash_platform_data tl_wr841n_v9_flash_data = {
 	.part_probes	= tl_wr841n_v9_part_probes,
 };
 
+static struct gpio_led tl_wr840n_v2_leds_gpio[] __initdata = {
+	{
+		.name		= "tp-link:green:system",
+		.gpio		= TL_WR840NV2_GPIO_LED_SYSTEM,
+		.active_low	= 1,
+	}, {
+		.name		= "tp-link:green:lan",
+		.gpio		= TL_WR840NV2_GPIO_LED_LAN,
+		.active_low	= 1,
+	}, {
+		.name		= "tp-link:green:wps",
+		.gpio		= TL_WR840NV2_GPIO_LED_WPS,
+		.active_low	= 1,
+	}, {
+		.name		= "tp-link:green:wan",
+		.gpio		= TL_WR840NV2_GPIO_LED_WAN,
+		.active_low	= 1,
+	}, {
+		.name		= "tp-link:green:wlan",
+		.gpio		= TL_WR840NV2_GPIO_LED_WLAN,
+		.active_low	= 1,
+	},
+};
+
+static struct gpio_keys_button tl_wr840n_v2_gpio_keys[] __initdata = {
+	{
+		.desc		= "Reset button",
+		.type		= EV_KEY,
+		.code		= KEY_RESTART,
+		.debounce_interval = TL_WR841NV9_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= TL_WR840NV2_GPIO_BTN_RESET,
+		.active_low	= 1,
+	}
+};
+
 static struct gpio_led tl_wr841n_v9_leds_gpio[] __initdata = {
 	{
 		.name		= "tp-link:green:lan1",
@@ -260,6 +304,25 @@ static void __init tl_ap143_setup(void)
 	ath79_register_wmac(ee, tmpmac);
 }
 
+
+static void __init tl_wr840n_v2_setup(void)
+{
+	tl_ap143_setup();
+
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(tl_wr840n_v2_leds_gpio),
+				 tl_wr840n_v2_leds_gpio);
+
+	ath79_register_gpio_keys_polled(1, TL_WR841NV9_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(tl_wr840n_v2_gpio_keys),
+					tl_wr840n_v2_gpio_keys);
+}
+
+MIPS_MACHINE(ATH79_MACH_TL_WR840N_V2, "TL-WR840N-v2", "TP-LINK TL-WR840N v2",
+	     tl_wr840n_v2_setup);
+
+MIPS_MACHINE(ATH79_MACH_TL_WR840N_V3, "TL-WR840N-v3", "TP-LINK TL-WR840N v3",
+	     tl_wr840n_v2_setup);
+
 static void __init tl_wr841n_v9_setup(void)
 {
 	tl_ap143_setup();
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
index 514a20d05f..27ebd47f29 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
+++ b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
@@ -242,6 +242,8 @@ enum ath79_mach_type {
 	ATH79_MACH_TL_WR802N_V1,		/* TP-LINK TL-WR802N v1 */
 	ATH79_MACH_TL_WR802N_V2,		/* TP-LINK TL-WR802N v2 */
 	ATH79_MACH_TL_WR810N,			/* TP-LINK TL-WR810N */
+	ATH79_MACH_TL_WR840N_V2,		/* TP-LINK TL-WR840N v2 */
+	ATH79_MACH_TL_WR840N_V3,		/* TP-LINK TL-WR840N v3 */
 	ATH79_MACH_TL_WR841N_V1,		/* TP-LINK TL-WR841N v1 */
 	ATH79_MACH_TL_WR841N_V11,		/* TP-LINK TL-WR841N/ND v11 */
 	ATH79_MACH_TL_WR841N_V7,		/* TP-LINK TL-WR841N/ND v7 */