ar71xx: add support for TP-LINK TL-WR842N/ND v3

- CPU QCA9531-BL3A
- RAM: 64MB
- flash: 16MB
- USB

AP143 platform, similar to tl-wr841n v10/v11, but with USB

Signed-off-by: Cezary Jackiewicz <cezary@eko.one.pl>

3 files changed, 105 insertions, 8 deletions

diff --git a/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt b/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
index 79d2d9d452..ac2cdaec3c 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
+++ b/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
@@ -1314,13 +1314,14 @@ config ATH79_MACH_TL_WR841N_V8
 	select ATH79_DEV_WMAC
 
 config ATH79_MACH_TL_WR841N_V9
-       bool "TP-LINK TL-WR841N/ND v9 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
+	bool "TP-LINK TL-WR841N/ND v9/TL-WR842N/ND 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_USB
+	select ATH79_DEV_WMAC
 
 config ATH79_MACH_TL_WR941ND
 	bool "TP-LINK TL-WR941ND support"
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 3e5c2a2522..02096031db 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
@@ -1,7 +1,8 @@
 /*
- *  TP-LINK TL-WR841N/ND v9
+ *  TP-LINK TL-WR841N/ND v9/TL-WR842N/ND v3
  *
  *  Copyright (C) 2014 Matthias Schiffer <mschiffer@universe-factory.net>
+ *  Copyright (C) 2016 Cezary Jackiewicz <cezary@eko.one.pl>
  *
  *  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
@@ -19,6 +20,7 @@
 #include "dev-gpio-buttons.h"
 #include "dev-leds-gpio.h"
 #include "dev-m25p80.h"
+#include "dev-usb.h"
 #include "dev-wmac.h"
 #include "machtypes.h"
 
@@ -33,6 +35,20 @@
 #define TL_WR841NV9_GPIO_BTN_RESET	12
 #define TL_WR841NV9_GPIO_BTN_WIFI	17
 
+#define TL_WR842NV3_GPIO_LED_SYSTEM	2
+#define TL_WR842NV3_GPIO_LED_WLAN	3
+#define TL_WR842NV3_GPIO_LED_WAN_RED	4
+#define TL_WR842NV3_GPIO_LED_WAN_GREEN	11
+#define TL_WR842NV3_GPIO_LED_LAN1	12
+#define TL_WR842NV3_GPIO_LED_LAN2	13
+#define TL_WR842NV3_GPIO_LED_LAN3	14
+#define TL_WR842NV3_GPIO_LED_LAN4	15
+#define TL_WR842NV3_GPIO_LED_3G		16
+#define TL_WR842NV3_GPIO_LED_WPS	17
+
+#define TL_WR842NV3_GPIO_BTN_RESET	1
+#define TL_WR842NV3_GPIO_BTN_WIFI	0
+
 #define TL_WR841NV9_KEYS_POLL_INTERVAL	20	/* msecs */
 #define TL_WR841NV9_KEYS_DEBOUNCE_INTERVAL (3 * TL_WR841NV9_KEYS_POLL_INTERVAL)
 
@@ -95,6 +111,68 @@ static struct gpio_keys_button tl_wr841n_v9_gpio_keys[] __initdata = {
 	}
 };
 
+static struct gpio_led tl_wr842n_v3_leds_gpio[] __initdata = {
+	{
+		.name		= "tp-link:green:lan1",
+		.gpio		= TL_WR842NV3_GPIO_LED_LAN1,
+		.active_low	= 1,
+	}, {
+		.name		= "tp-link:green:lan2",
+		.gpio		= TL_WR842NV3_GPIO_LED_LAN2,
+		.active_low	= 1,
+	}, {
+		.name		= "tp-link:green:lan3",
+		.gpio		= TL_WR842NV3_GPIO_LED_LAN3,
+		.active_low	= 1,
+	}, {
+		.name		= "tp-link:green:lan4",
+		.gpio		= TL_WR842NV3_GPIO_LED_LAN4,
+		.active_low	= 1,
+	}, {
+		.name		= "tp-link:green:wan",
+		.gpio		= TL_WR842NV3_GPIO_LED_WAN_GREEN,
+		.active_low	= 1,
+	}, {
+		.name		= "tp-link:red:wan",
+		.gpio		= TL_WR842NV3_GPIO_LED_WAN_RED,
+		.active_low	= 1,
+	}, {
+		.name		= "tp-link:green:wlan",
+		.gpio		= TL_WR842NV3_GPIO_LED_WLAN,
+		.active_low	= 1,
+	}, {
+		.name		= "tp-link:green:system",
+		.gpio		= TL_WR842NV3_GPIO_LED_SYSTEM,
+		.active_low	= 1,
+	}, {
+		.name		= "tp-link:green:3g",
+		.gpio		= TL_WR842NV3_GPIO_LED_3G,
+		.active_low	= 1,
+	}, {
+		.name		= "tp-link:green:wps",
+		.gpio		= TL_WR842NV3_GPIO_LED_WPS,
+		.active_low	= 1,
+	},
+};
+
+static struct gpio_keys_button tl_wr842n_v3_gpio_keys[] __initdata = {
+	{
+		.desc		= "Reset button",
+		.type		= EV_KEY,
+		.code		= KEY_RESTART,
+		.debounce_interval = TL_WR841NV9_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= TL_WR842NV3_GPIO_BTN_RESET,
+		.active_low	= 1,
+	}, {
+		.desc		= "WIFI button",
+		.type		= EV_KEY,
+		.code		= KEY_RFKILL,
+		.debounce_interval = TL_WR841NV9_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= TL_WR842NV3_GPIO_BTN_WIFI,
+		.active_low	= 1,
+	}
+};
+
 
 static void __init tl_ap143_setup(void)
 {
@@ -142,3 +220,20 @@ static void __init tl_wr841n_v9_setup(void)
 
 MIPS_MACHINE(ATH79_MACH_TL_WR841N_V9, "TL-WR841N-v9", "TP-LINK TL-WR841N/ND v9",
 	     tl_wr841n_v9_setup);
+
+static void __init tl_wr842n_v3_setup(void)
+{
+	tl_ap143_setup();
+
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(tl_wr842n_v3_leds_gpio),
+				 tl_wr842n_v3_leds_gpio);
+
+	ath79_register_gpio_keys_polled(1, TL_WR841NV9_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(tl_wr842n_v3_gpio_keys),
+					tl_wr842n_v3_gpio_keys);
+
+	ath79_register_usb();
+}
+
+MIPS_MACHINE(ATH79_MACH_TL_WR842N_V3, "TL-WR842N-v3", "TP-LINK TL-WR842N/ND v3",
+	     tl_wr842n_v3_setup);
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
index f50062f39d..f53efff0b6 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
+++ b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
@@ -200,6 +200,7 @@ enum ath79_mach_type {
 	ATH79_MACH_TL_WR841N_V8,	/* TP-LINK TL-WR841N/ND v8 */
 	ATH79_MACH_TL_WR841N_V9,	/* TP-LINK TL-WR841N/ND v9 */
 	ATH79_MACH_TL_WR842N_V2,	/* TP-LINK TL-WR842N/ND v2 */
+	ATH79_MACH_TL_WR842N_V3,	/* TP-LINK TL-WR842N/ND v3 */
 	ATH79_MACH_TL_WR941ND,		/* TP-LINK TL-WR941ND */
 	ATH79_MACH_TL_WR941ND_V5,	/* TP-LINK TL-WR941ND v5 */
 	ATH79_MACH_TL_WR941ND_V6,	/* TP-LINK TL-WR941ND v6 */