ar71xx: add support for YunCore AP90Q

YunCore AP90Q is an outdoor CPE/AP based on Qualcomm/Atheros QCA9531 v2.
Short specification:

- 650/600/216 MHz (CPU/DDR/AHB)
- 2x 10/100 Mbps Ethernet, passive PoE support
- 64/128 MB of RAM (DDR2)
- 16 MB of FLASH
- 2T2R 2.4 GHz with external PA, up to 29 dBm
- 2x internal 5 dBi omni antennas
- 4x LED, 1x button
- UART (JP1) header on PCB

Flash instruction under U-Boot, using UART:

1. tftp 0x80060000 lede-ar71xx-generic-ap90q-squashfs-sysupgrade
2. erase 0x9f050000 +$filesize
3. cp.b $fileaddr 0x9f050000 $filesize
4. setenv bootcmd "bootm 0x9f050000"
5. saveenv && reset

Flash instruction under vendor fimrware, using telnet/SSH:

1. Connect PC with 192.168.1.x address to WAN port
2. Power up device, enter failsafe mode with button (no LED indicator!)
3. Change root password and reboot (mount_root, passwd ..., reboot -f)
4. Upload lede-ar71xx-generic-ap90q-squashfs-sysupgrade.bin to /tmp using SCP
5. Connect PC with 192.168.188.x address to LAN port, SSH to 192.168.188.253
6. Invoke:
- cd /tmp
- fw_setenv bootcmd "bootm 0x9f050000"
- mtd erase firmware
- mtd -r write lede-ar71xx-generic-ap90q-squashfs-sysupgrade.bin firmware

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

target/linux/ar71xx/base-files/etc/board.d/01_leds

@@ -57,6 +57,17 @@ ap147-010)
 	ucidef_set_led_switch "lan4" "LAN4" "ap147:green:lan4" "switch0" "0x02"
 	ucidef_set_led_wlan "wlan2g" "WLAN 2.4 GHz" "ap147:green:wlan-2g" "phy0tpt"
 	;;
+ap90q|\
+dr531)
+	ucidef_set_led_netdev "lan" "LAN" "$board:green:lan" "eth0"
+	ucidef_set_led_netdev "wan" "WAN" "$board:green:wan" "eth1"
+
+	case "$board" in
+	ap90q)
+		ucidef_set_led_wlan "wlan" "WLAN" "$board:green:wlan" "phy0tpt"
+		;;
+	esac
+	;;
 bhr-4grv2)
 	ucidef_set_led_default "power" "POWER" "buffalo:green:power" "1"
 	ucidef_set_led_default "diag" "DIAG" "buffalo:red:diag" "0"
@@ -152,10 +163,6 @@ cr5000)
 	ucidef_set_led_wlan "wlan" "WLAN" "pcs:blue:wlan" "phy0tpt"
 	ucidef_set_led_usbdev "usb" "USB" "pcs:white:wps" "1-1"
 	;;
-dr531)
-	ucidef_set_led_netdev "lan" "LAN" "$board:green:lan" "eth0"
-	ucidef_set_led_netdev "wan" "WAN" "$board:green:wan" "eth1"
-	;;
 dragino2)
 	ucidef_set_led_wlan "wlan" "WLAN" "$board:red:wlan" "phy0tpt"
 	ucidef_set_led_netdev "lan" "LAN" "$board:red:lan" "eth0"

target/linux/ar71xx/base-files/etc/diag.sh

@@ -47,6 +47,10 @@ get_status_led() {
 	tl-wpa8630)
 		status_led="$board:green:power"
 		;;
+	ap90q|\
+	gl-inet)
+		status_led="$board:green:lan"
+		;;
 	ap96)
 		status_led="$board:green:led2"
 		;;
@@ -168,9 +172,6 @@ get_status_led() {
 	f9k1115v2)
 		status_led="belkin:blue:status"
 		;;
-	gl-inet)
-		status_led="$board:green:lan"
-		;;
 	epg5000|\
 	esr1750)
 		status_led="$board:amber:power"

target/linux/ar71xx/base-files/lib/ar71xx.sh

@@ -470,6 +470,9 @@ ar71xx_board_detect() {
 	*AP83)
 		name="ap83"
 		;;
+	*AP90Q)
+		name="ap90q"
+		;;
 	*"Archer C5")
 		name="archer-c5"
 		;;

target/linux/ar71xx/base-files/lib/upgrade/platform.sh

@@ -178,6 +178,7 @@ platform_check_image() {
 	ap132|\
 	ap81|\
 	ap83|\
+	ap90q|\
 	bullet-m|\
 	c-55|\
 	carambola2|\

target/linux/ar71xx/config-4.4

@@ -49,6 +49,7 @@ CONFIG_ATH79_MACH_AP147=y
 CONFIG_ATH79_MACH_AP152=y
 CONFIG_ATH79_MACH_AP81=y
 CONFIG_ATH79_MACH_AP83=y
+CONFIG_ATH79_MACH_AP90Q=y
 CONFIG_ATH79_MACH_AP96=y
 CONFIG_ATH79_MACH_ARCHER_C7=y
 CONFIG_ATH79_MACH_ARDUINO_YUN=y

target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt

@@ -174,6 +174,15 @@ config ATH79_MACH_AP83
 	select ATH79_DEV_USB
 	select ATH79_DEV_WMAC
 
+config ATH79_MACH_AP90Q
+	bool "YunCore AP90Q 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_AP96
 	bool "Atheros AP96 board support"
 	select SOC_AR71XX

target/linux/ar71xx/files/arch/mips/ath79/Makefile

@@ -55,6 +55,7 @@ obj-$(CONFIG_ATH79_MACH_AP147)			+= mach-ap147.o
 obj-$(CONFIG_ATH79_MACH_AP152)			+= mach-ap152.o
 obj-$(CONFIG_ATH79_MACH_AP81)			+= mach-ap81.o
 obj-$(CONFIG_ATH79_MACH_AP83)			+= mach-ap83.o
+obj-$(CONFIG_ATH79_MACH_AP90Q)			+= mach-ap90q.o
 obj-$(CONFIG_ATH79_MACH_AP96)			+= mach-ap96.o
 obj-$(CONFIG_ATH79_MACH_ARCHER_C7)		+= mach-archer-c7.o
 obj-$(CONFIG_ATH79_MACH_ARDUINO_YUN)		+= mach-arduino-yun.o

target/linux/ar71xx/files/arch/mips/ath79/mach-ap90q.c

@@ -0,0 +1,123 @@
+/*
+ * YunCore AP90Q board support
+ *
+ * Copyright (C) 2016 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/platform_device.h>
+
+#include <asm/mach-ath79/ath79.h>
+#include <asm/mach-ath79/ar71xx_regs.h>
+
+#include "common.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 AP90Q_GPIO_LED_WAN	4
+#define AP90Q_GPIO_LED_WLAN	12
+#define AP90Q_GPIO_LED_LAN	16
+
+#define AP90Q_GPIO_BTN_RESET	17
+
+#define AP90Q_KEYS_POLL_INTERVAL	20
+#define AP90Q_KEYS_DEBOUNCE_INTERVAL	(3 * AP90Q_KEYS_POLL_INTERVAL)
+
+static struct gpio_led ap90q_leds_gpio[] __initdata = {
+	{
+		.name		= "ap90q:green:lan",
+		.gpio		= AP90Q_GPIO_LED_LAN,
+		.active_low	= 1,
+	},
+	{
+		.name		= "ap90q:green:wan",
+		.gpio		= AP90Q_GPIO_LED_WAN,
+		.active_low	= 1,
+	},
+	{
+		.name		= "ap90q:green:wlan",
+		.gpio		= AP90Q_GPIO_LED_WLAN,
+		.active_low	= 1,
+	},
+};
+
+static struct gpio_keys_button ap90q_gpio_keys[] __initdata = {
+	{
+		.desc		= "reset",
+		.type		= EV_KEY,
+		.code		= KEY_RESTART,
+		.debounce_interval = AP90Q_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= AP90Q_GPIO_BTN_RESET,
+		.active_low	= 1,
+	},
+};
+
+static void __init ap90q_gpio_setup(void)
+{
+	/* For LED on GPIO4 */
+	ath79_gpio_function_disable(AR934X_GPIO_FUNC_CLK_OBS4_EN);
+
+	ath79_gpio_direction_select(AP90Q_GPIO_LED_LAN, true);
+	ath79_gpio_direction_select(AP90Q_GPIO_LED_WAN, true);
+	ath79_gpio_direction_select(AP90Q_GPIO_LED_WLAN, true);
+
+	/* Mute LEDs on boot */
+	gpio_set_value(AP90Q_GPIO_LED_LAN, 1);
+	gpio_set_value(AP90Q_GPIO_LED_WAN, 1);
+
+	ath79_gpio_output_select(AP90Q_GPIO_LED_LAN, 0);
+	ath79_gpio_output_select(AP90Q_GPIO_LED_WAN, 0);
+	ath79_gpio_output_select(AP90Q_GPIO_LED_WLAN, 0);
+
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(ap90q_leds_gpio),
+				 ap90q_leds_gpio);
+
+	ath79_register_gpio_keys_polled(-1, AP90Q_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(ap90q_gpio_keys),
+					ap90q_gpio_keys);
+}
+
+static void __init ap90q_setup(void)
+{
+	u8 *art = (u8 *) KSEG1ADDR(0x1fff1000);
+	u8 *mac = (u8 *) KSEG1ADDR(0x1fff0000);
+
+	ath79_register_m25p80(NULL);
+
+	ap90q_gpio_setup();
+
+	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 |= BIT(4);
+
+	/* LAN */
+	ath79_eth1_data.duplex = DUPLEX_FULL;
+	ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
+	ath79_eth1_data.speed = SPEED_1000;
+	ath79_init_mac(ath79_eth1_data.mac_addr, mac, 1);
+	ath79_register_eth(1);
+
+	/* WAN */
+	ath79_eth0_data.duplex = DUPLEX_FULL;
+	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
+	ath79_eth0_data.speed = SPEED_100;
+	ath79_eth0_data.phy_mask = BIT(4);
+	ath79_init_mac(ath79_eth0_data.mac_addr, mac, 0);
+	ath79_register_eth(0);
+
+	ath79_register_wmac(art, NULL);
+}
+
+MIPS_MACHINE(ATH79_MACH_AP90Q, "AP90Q", "YunCore AP90Q", ap90q_setup);

target/linux/ar71xx/files/arch/mips/ath79/machtypes.h

@@ -38,6 +38,7 @@ enum ath79_mach_type {
 	ATH79_MACH_AP152,			/* Atheros AP152 reference board */
 	ATH79_MACH_AP81,			/* Atheros AP81 reference board */
 	ATH79_MACH_AP83,			/* Atheros AP83 */
+	ATH79_MACH_AP90Q,			/* YunCore AP90Q */
 	ATH79_MACH_AP96,			/* Atheros AP96 */
 	ATH79_MACH_ARCHER_C5,			/* TP-LINK Archer C5 board */
 	ATH79_MACH_ARCHER_C7,			/* TP-LINK Archer C7 board */

target/linux/ar71xx/image/generic.mk

@@ -1,3 +1,12 @@
+define Device/ap90q
+  DEVICE_TITLE := YunCore AP90Q
+  BOARDNAME = AP90Q
+  IMAGE_SIZE = 16000k
+  CONSOLE = ttyS0,115200
+  MTDPARTS = spi0.0:256k(u-boot)ro,64k(u-boot-env),16000k(firmware),64k(art)ro
+endef
+TARGET_DEVICES += ap90q
+
 define Device/bsb
   DEVICE_TITLE := Smart Electronics Black Swift board
   DEVICE_PACKAGES := kmod-usb-core kmod-usb2