ar71xx: add support for GL.iNet GL-AR750

GL.iNet GL-AR750 is a small size, dual-band (AC750) router, based on
Qualcomm/Atheros QCA9531 v2 + QCA9887. FCC ID: 2AFIW-AR750.

Specification:

- 650/597/216 MHz (CPU/DDR/AHB)
- 128 MB of RAM (DDR2)
- 16 MB of FLASH (SPI NOR)
- 3x 10/100 Mbps Ethernet
- 2T2R 2.4 GHz (QCA9531)
- 1T1R 5 GHz (QCA9887)
- 1x USB 2.0 (power controlled by GPIO)
- 1x microSD (GL857L)
- 3x LED (all driven by GPIO)
- 1x button (reset)
- 1x 2-pos switch
- header for optional PoE module
- 1x micro USB for main power input
- UART + I2C header on PCB

Flash instruction:

Vendor firmware is based on OpenWrt/LEDE. GUI or sysupgrade can be used
to flash OpenWrt/LEDE firmware.

Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>

15 files changed, 198 insertions, 10 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 f39109af44..fac9dfa7ab 100755
--- a/target/linux/ar71xx/base-files/etc/board.d/01_leds
+++ b/target/linux/ar71xx/base-files/etc/board.d/01_leds
@@ -407,6 +407,10 @@ dlan-pro-1200-ac)
 gl-ar300m)
 	ucidef_set_led_wlan "wlan" "WLAN" "$board:red:wlan" "phy0tpt"
 	;;
+gl-ar750)
+	ucidef_set_led_wlan "wlan2g" "WLAN2G" "$board:white:wlan2g" "phy1tpt"
+	ucidef_set_led_wlan "wlan5g" "WLAN5G" "$board:white:wlan5g" "phy0tpt"
+	;;
 gl-mifi)
 	ucidef_set_led_wlan "wlan" "WLAN" "$board:green:wlan" "phy0tpt"
 	ucidef_set_led_netdev "wan" "WAN" "$board:green:wan" "eth0"
diff --git a/target/linux/ar71xx/base-files/etc/board.d/02_network b/target/linux/ar71xx/base-files/etc/board.d/02_network
index 6a338aeeba..558b0381f0 100755
--- a/target/linux/ar71xx/base-files/etc/board.d/02_network
+++ b/target/linux/ar71xx/base-files/etc/board.d/02_network
@@ -390,6 +390,12 @@ ar71xx_setup_interfaces()
 		ucidef_add_switch "switch0" \
 			"0@eth1" "1:lan" "2:lan" "3:lan" "4:lan"
 		;;
+	gl-ar750|\
+	rb-435g)
+		ucidef_set_interfaces_lan_wan "eth1.1" "eth0"
+		ucidef_add_switch "switch0" \
+			"0@eth1" "1:lan" "2:lan"
+		;;
 	jwap230)
 		ucidef_set_interfaces_lan_wan "eth0.1" "eth1.2"
 		ucidef_add_switch "switch0" \
@@ -402,11 +408,6 @@ ar71xx_setup_interfaces()
 	onion-omega)
 		ucidef_set_interface_lan "wlan0"
 		;;
-	rb-435g)
-		ucidef_set_interfaces_lan_wan "eth1.1" "eth0"
-		ucidef_add_switch "switch0" \
-			"0@eth1" "1:lan" "2:lan"
-		;;
 	rb-450)
 		ucidef_set_interfaces_lan_wan "eth1.1" "eth0"
 		ucidef_add_switch "switch0" \
diff --git a/target/linux/ar71xx/base-files/etc/diag.sh b/target/linux/ar71xx/base-files/etc/diag.sh
index 00ddeeac50..2720288e3d 100644
--- a/target/linux/ar71xx/base-files/etc/diag.sh
+++ b/target/linux/ar71xx/base-files/etc/diag.sh
@@ -210,6 +210,7 @@ get_status_led() {
 	esr1750)
 		status_led="$board:amber:power"
 		;;
+	gl-ar750|\
 	hiveap-121|\
 	nbg6716)
 		status_led="$board:white:power"
@@ -527,7 +528,8 @@ set_state() {
 	done)
 		status_led_on
 		case $(board_name) in
-		gl-ar300m)
+		gl-ar300m|\
+		gl-ar750)
 			fw_printenv lc >/dev/null 2>&1 && fw_setenv "bootcount" 0
 			;;
 		qihoo-c301)
diff --git a/target/linux/ar71xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata b/target/linux/ar71xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
index d7d99f8edb..1876b0084f 100644
--- a/target/linux/ar71xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
+++ b/target/linux/ar71xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
@@ -89,6 +89,11 @@ case "$FIRMWARE" in
 		ath10kcal_extract "caldata" 20480 2116
 		ath10kcal_patch_mac $(macaddr_add $(cat /sys/class/net/eth0/address) +1)
 		;;
+	gl-ar750|\
+	tl-wpa8630)
+		ath10kcal_extract "art" 20480 2116
+		ath10kcal_patch_mac $(macaddr_add $(cat /sys/class/net/eth0/address) +1)
+		;;
 	mc-mac1200r)
 		ath10kcal_extract "art" 20480 2116
 		ath10kcal_patch_mac $(macaddr_add $(cat /sys/class/net/eth1/address) -1)
@@ -105,10 +110,6 @@ case "$FIRMWARE" in
 		ath10kcal_extract "art" 20480 2116
 		ath10kcal_patch_mac $(macaddr_add $(cat /sys/class/net/eth0/address) -2)
 		;;
-	tl-wpa8630)
-		ath10kcal_extract "art" 20480 2116
-		ath10kcal_patch_mac $(macaddr_add $(cat /sys/class/net/eth0/address) +1)
-		;;
 	unifiac-lite|\
 	unifiac-pro)
 		ath10kcal_extract "EEPROM" 20480 2116
diff --git a/target/linux/ar71xx/base-files/lib/ar71xx.sh b/target/linux/ar71xx/base-files/lib/ar71xx.sh
index d62dff593e..d2c68fbb2c 100755
--- a/target/linux/ar71xx/base-files/lib/ar71xx.sh
+++ b/target/linux/ar71xx/base-files/lib/ar71xx.sh
@@ -673,6 +673,9 @@ ar71xx_board_detect() {
 	*"GL-AR300M")
 		name="gl-ar300m"
 		;;
+	*"GL-AR750")
+		name="gl-ar750"
+		;;
 	*"GL-CONNECT INET v1")
 		name="gl-inet"
 
diff --git a/target/linux/ar71xx/base-files/lib/preinit/05_set_preinit_iface_ar71xx b/target/linux/ar71xx/base-files/lib/preinit/05_set_preinit_iface_ar71xx
index ece961e7ce..909e615092 100644
--- a/target/linux/ar71xx/base-files/lib/preinit/05_set_preinit_iface_ar71xx
+++ b/target/linux/ar71xx/base-files/lib/preinit/05_set_preinit_iface_ar71xx
@@ -17,6 +17,7 @@ set_preinit_iface() {
 	archer-c7|\
 	bhr-4grv2|\
 	dir-505-a1|\
+	gl-ar750|\
 	gl-inet|\
 	jwap003|\
 	pb42|\
diff --git a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
index 108c90b1fe..2231069c4d 100755
--- a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
@@ -242,6 +242,7 @@ platform_check_image() {
 	gl-ar150|\
 	gl-ar300m|\
 	gl-ar300|\
+	gl-ar750|\
 	gl-domino|\
 	gl-mifi|\
 	gl-usb150|\
diff --git a/target/linux/ar71xx/config-4.4 b/target/linux/ar71xx/config-4.4
index 44303f1be0..8ecf7e1355 100644
--- a/target/linux/ar71xx/config-4.4
+++ b/target/linux/ar71xx/config-4.4
@@ -114,6 +114,7 @@ CONFIG_ATH79=y
 # CONFIG_ATH79_MACH_GL_AR150 is not set
 # CONFIG_ATH79_MACH_GL_AR300 is not set
 # CONFIG_ATH79_MACH_GL_AR300M is not set
+# CONFIG_ATH79_MACH_GL_AR750 is not set
 # CONFIG_ATH79_MACH_GL_DOMINO is not set
 # CONFIG_ATH79_MACH_GL_INET is not set
 # CONFIG_ATH79_MACH_GL_MIFI is not set
diff --git a/target/linux/ar71xx/config-4.9 b/target/linux/ar71xx/config-4.9
index 1e4b3ab87d..0e224ae1c4 100644
--- a/target/linux/ar71xx/config-4.9
+++ b/target/linux/ar71xx/config-4.9
@@ -112,6 +112,7 @@ CONFIG_ATH79=y
 # CONFIG_ATH79_MACH_GL_AR150 is not set
 # CONFIG_ATH79_MACH_GL_AR300 is not set
 # CONFIG_ATH79_MACH_GL_AR300M is not set
+# CONFIG_ATH79_MACH_GL_AR750 is not set
 # CONFIG_ATH79_MACH_GL_DOMINO is not set
 # CONFIG_ATH79_MACH_GL_INET is not set
 # CONFIG_ATH79_MACH_GL_MIFI is not set
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt b/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
index dae68d0fb7..3ca77550bc 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
+++ b/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
@@ -770,6 +770,17 @@ config ATH79_MACH_GL_AR300M
 	select ATH79_DEV_USB
 	select ATH79_DEV_WMAC
 
+config ATH79_MACH_GL_AR750
+	bool "GL.iNet GL-AR750 support"
+	select SOC_QCA953X
+	select ATH79_DEV_AP9X_PCI if PCI
+	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_GL_DOMINO
 	bool "DOMINO support"
 	select SOC_AR933X
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/Makefile b/target/linux/ar71xx/files/arch/mips/ath79/Makefile
index b7caa5a770..e9f4d9852b 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/Makefile
+++ b/target/linux/ar71xx/files/arch/mips/ath79/Makefile
@@ -122,6 +122,7 @@ obj-$(CONFIG_ATH79_MACH_FRITZ300E)		+= mach-fritz300e.o
 obj-$(CONFIG_ATH79_MACH_GL_AR150)		+= mach-gl-ar150.o
 obj-$(CONFIG_ATH79_MACH_GL_AR300)		+= mach-gl-ar300.o
 obj-$(CONFIG_ATH79_MACH_GL_AR300M)		+= mach-gl-ar300m.o
+obj-$(CONFIG_ATH79_MACH_GL_AR750)		+= mach-gl-ar750.o
 obj-$(CONFIG_ATH79_MACH_GL_DOMINO)		+= mach-gl-domino.o
 obj-$(CONFIG_ATH79_MACH_GL_INET)		+= mach-gl-inet.o
 obj-$(CONFIG_ATH79_MACH_GL_MIFI)		+= mach-gl-mifi.o
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-gl-ar750.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-gl-ar750.c
new file mode 100644
index 0000000000..9ee6e29c02
--- /dev/null
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-gl-ar750.c
@@ -0,0 +1,146 @@
+/*
+ * GL.iNet GL-AR750 board support
+ *
+ * Copyright (C) 2018 Piotr Dymacz <pepe2k@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
+ * by the Free Software Foundation.
+ */
+
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/i2c-gpio.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach-ath79/ath79.h>
+#include <asm/mach-ath79/ar71xx_regs.h>
+
+#include "common.h"
+#include "dev-ap9x-pci.h"
+#include "dev-eth.h"
+#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"
+
+#define GL_AR750_GPIO_LED_POWER		12
+#define GL_AR750_GPIO_LED_WLAN2G	14
+#define GL_AR750_GPIO_LED_WLAN5G	13
+
+#define GL_AR750_GPIO_BTN_RESET		3
+#define GL_AR750_GPIO_BTN_SW1		0
+
+#define GL_AR750_GPIO_I2C_SCL		16
+#define GL_AR750_GPIO_I2C_SDA		17
+
+#define GL_AR750_GPIO_USB_POWER		2
+
+#define GL_AR750_KEYS_POLL_INTERVAL	20
+#define GL_AR750_KEYS_DEBOUNCE_INTERVAL	(3 * GL_AR750_KEYS_POLL_INTERVAL)
+
+#define GL_AR750_MAC0_OFFSET		0
+#define GL_AR750_WMAC2G_CALDATA_OFFSET	0x1000
+#define GL_AR750_WMAC5G_CALDATA_OFFSET	0x5000
+
+static struct gpio_led gl_ar750_leds_gpio[] __initdata = {
+	{
+		.name		= "gl-ar750:white:power",
+		.gpio		= GL_AR750_GPIO_LED_POWER,
+		.default_state	= LEDS_GPIO_DEFSTATE_KEEP,
+		.active_low	= 1,
+	}, {
+		.name		= "gl-ar750:white:wlan2g",
+		.gpio		= GL_AR750_GPIO_LED_WLAN2G,
+		.active_low	= 1,
+	}, {
+		.name		= "gl-ar750:white:wlan5g",
+		.gpio		= GL_AR750_GPIO_LED_WLAN5G,
+		.active_low	= 1,
+	},
+};
+
+static struct gpio_keys_button gl_ar750_gpio_keys[] __initdata = {
+	{
+		.desc			= "reset",
+		.type			= EV_KEY,
+		.code			= KEY_RESTART,
+		.debounce_interval	= GL_AR750_KEYS_DEBOUNCE_INTERVAL,
+		.gpio			= GL_AR750_GPIO_BTN_RESET,
+		.active_low		= 1,
+	}, {
+		.desc			= "sw1",
+		.type			= EV_KEY,
+		.code			= BTN_0,
+		.debounce_interval	= GL_AR750_KEYS_DEBOUNCE_INTERVAL,
+		.gpio			= GL_AR750_GPIO_BTN_SW1,
+		.active_low		= 1,
+	},
+};
+
+static struct i2c_gpio_platform_data gl_ar750_i2c_gpio_data = {
+	.sda_pin = GL_AR750_GPIO_I2C_SDA,
+	.scl_pin = GL_AR750_GPIO_I2C_SCL,
+};
+
+static struct platform_device gl_ar750_i2c_gpio = {
+	.name	= "i2c-gpio",
+	.id	= 0,
+	.dev	= {
+		.platform_data = &gl_ar750_i2c_gpio_data,
+	},
+};
+
+static void __init gl_ar750_setup(void)
+{
+	u8 *art = (u8 *) KSEG1ADDR(0x1f050000);
+
+	ath79_register_m25p80(NULL);
+
+	ath79_setup_ar933x_phy4_switch(false, false);
+	ath79_register_mdio(0, 0x0);
+
+	ath79_switch_data.phy4_mii_en = 1;
+	ath79_switch_data.phy_poll_mask = 0xfc;
+
+	/* WAN */
+	ath79_eth0_data.duplex = DUPLEX_FULL;
+	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
+	ath79_eth0_data.phy_mask = BIT(4);
+	ath79_eth0_data.speed = SPEED_100;
+	ath79_init_mac(ath79_eth0_data.mac_addr, art + GL_AR750_MAC0_OFFSET, 0);
+	ath79_register_eth(0);
+
+	/* LAN */
+	ath79_eth1_data.duplex = DUPLEX_FULL;
+	ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
+	ath79_init_mac(ath79_eth1_data.mac_addr, art + GL_AR750_MAC0_OFFSET, 1);
+	ath79_register_eth(1);
+
+	/* Disable JTAG (enables GPIO0-3) */
+	ath79_gpio_function_enable(AR934X_GPIO_FUNC_JTAG_DISABLE);
+
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(gl_ar750_leds_gpio),
+				 gl_ar750_leds_gpio);
+
+	ath79_register_gpio_keys_polled(-1, GL_AR750_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(gl_ar750_gpio_keys),
+					gl_ar750_gpio_keys);
+
+	gpio_request_one(GL_AR750_GPIO_USB_POWER,
+			 GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
+			 "USB power");
+
+	platform_device_register(&gl_ar750_i2c_gpio);
+
+	ath79_register_usb();
+
+	ath79_register_wmac(art + GL_AR750_WMAC2G_CALDATA_OFFSET, NULL);
+
+	ap91_pci_init(art + GL_AR750_WMAC5G_CALDATA_OFFSET, NULL);
+}
+
+MIPS_MACHINE(ATH79_MACH_GL_AR750, "GL-AR750", "GL.iNet GL-AR750",
+	     gl_ar750_setup);
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
index 4afda05638..1a2c0386f8 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
+++ b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
@@ -114,6 +114,7 @@ enum ath79_mach_type {
 	ATH79_MACH_GL_AR150,			/* GL-AR150 support */
 	ATH79_MACH_GL_AR300,			/* GL-AR300 */
 	ATH79_MACH_GL_AR300M,			/* GL-AR300M */
+	ATH79_MACH_GL_AR750,			/* GL.iNet GL-AR750 */
 	ATH79_MACH_GL_DOMINO,			/* Domino */
 	ATH79_MACH_GL_INET,			/* GL-CONNECT GL-INET */
 	ATH79_MACH_GL_MIFI,			/* GL-MIFI support */
diff --git a/target/linux/ar71xx/generic/config-default b/target/linux/ar71xx/generic/config-default
index 06d5223d6c..cac1a27c3b 100644
--- a/target/linux/ar71xx/generic/config-default
+++ b/target/linux/ar71xx/generic/config-default
@@ -85,6 +85,7 @@ CONFIG_ATH79_MACH_FRITZ300E=y
 CONFIG_ATH79_MACH_GL_AR150=y
 CONFIG_ATH79_MACH_GL_AR300=y
 CONFIG_ATH79_MACH_GL_AR300M=y
+CONFIG_ATH79_MACH_GL_AR750=y
 CONFIG_ATH79_MACH_GL_DOMINO=y
 CONFIG_ATH79_MACH_GL_INET=y
 CONFIG_ATH79_MACH_GL_MIFI=y
diff --git a/target/linux/ar71xx/image/generic.mk b/target/linux/ar71xx/image/generic.mk
index 65a7eb79c0..88b9f930b6 100644
--- a/target/linux/ar71xx/image/generic.mk
+++ b/target/linux/ar71xx/image/generic.mk
@@ -330,6 +330,19 @@ define Device/gl-ar300m
 endef
 TARGET_DEVICES += gl-ar300m
 
+define Device/gl-ar750
+  DEVICE_TITLE := GL.iNet GL-AR750
+  DEVICE_PACKAGES := kmod-ath10k ath10k-firmware-qca9887 kmod-usb-core \
+	kmod-usb2 kmod-usb-storage
+  BOARDNAME := GL-AR750
+  SUPPORTED_DEVICES := gl-ar750
+  IMAGE_SIZE := 16000k
+  MTDPARTS := spi0.0:256k(u-boot)ro,64k(u-boot-env),64k(art)ro,-(firmware)
+  IMAGE/sysupgrade.bin := append-kernel | pad-to $$$$(BLOCKSIZE) | \
+	append-rootfs | pad-rootfs | append-metadata | check-size $$$$(IMAGE_SIZE)
+endef
+TARGET_DEVICES += gl-ar750
+
 define Device/gl-domino
   DEVICE_TITLE := GL.iNet Domino Pi
   DEVICE_PACKAGES := kmod-usb-core kmod-usb2