ar71xx: add support for Zbtlink ZBT-WE1526

Zbtlink ZBT-WE1526 is based on Qualcomm Atheros QCA9531 v2.
Short specification:

- 650/400/200 MHz (CPU/DDR/AHB)
- 5x 10/100 Mbps Ethernet
- 1x USB 2.0
- 128 MB of RAM (DDR2)
- 16 MB of FLASH
- 2T2R 2.4 GHz, up to 22 dBm
- two external, non-detachable antennas
- 8x LED, 1x button
- UART header (pinout: VCC, RX, TX, GND)

Flash instruction:

Use sysupgrade in vendor firmare which is based on OpenWrt.

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

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

@@ -813,6 +813,15 @@ wzr-hp-g300nh)
 	ucidef_set_led_usbdev "usb" "USB" "buffalo:blue:usb" "1-1"
 	;;
 
+zbt-we1526)
+	ucidef_set_led_netdev "wan" "WAN" "zbt-we1526:green:wan" "eth1"
+	ucidef_set_led_switch "lan1" "LAN1" "zbt-we1526:green:lan1" "switch0" "0x10"
+	ucidef_set_led_switch "lan2" "LAN2" "zbt-we1526:green:lan2" "switch0" "0x08"
+	ucidef_set_led_switch "lan3" "LAN3" "zbt-we1526:green:lan3" "switch0" "0x04"
+	ucidef_set_led_switch "lan4" "LAN4" "zbt-we1526:green:lan4" "switch0" "0x02"
+	ucidef_set_led_wlan "wlan" "WLAN" "zbt-we1526:green:wlan" "phy0tpt"
+	;;
+
 zcn-1523h-2)
 	ucidef_set_led_netdev "lan1" "lan1" "zcn-1523h:green:lan1" "eth0"
 	;;

target/linux/ar71xx/base-files/etc/board.d/02_network

@@ -479,7 +479,8 @@ tl-wr842n-v3 |\
 whr-g301n |\
 whr-hp-g300n |\
 whr-hp-gn |\
-wzr-hp-ag300h)
+wzr-hp-ag300h |\
+zbt-we1526)
 	ucidef_set_interfaces_lan_wan "eth0" "eth1"
 	ucidef_add_switch "switch0" \
 		"0@eth0" "1:lan:4" "2:lan:3" "3:lan:2" "4:lan:1"

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

@@ -426,6 +426,9 @@ get_status_led() {
 	wrt160nl)
 		status_led="wrt160nl:blue:wps"
 		;;
+	zbt-we1526)
+		status_led="zbt-we1526:green:status"
+		;;
 	zcn-1523h-2 | zcn-1523h-5)
 		status_led="zcn-1523h:amber:init"
 		;;

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

@@ -1098,6 +1098,9 @@ ar71xx_board_detect() {
 	*WHR-HP-G300N)
 		name="whr-hp-g300n"
 		;;
+	*ZBT-WE1526)
+		name="zbt-we1526"
+		;;
 	*ZCN-1523H-2)
 		name="zcn-1523h-2"
 		;;

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

@@ -198,6 +198,7 @@ platform_check_image() {
 	mr12 | \
 	mr16 | \
 	wpj558 | \
+	zbt-we1526 | \
 	zcn-1523h-2 | \
 	zcn-1523h-5)
 		[ "$magic_long" != "68737173" -a "$magic_long" != "19852003" ] && {

target/linux/ar71xx/config-4.4

@@ -201,6 +201,7 @@ CONFIG_ATH79_MACH_WZR_HP_AG300H=y
 CONFIG_ATH79_MACH_WZR_HP_G300NH=y
 CONFIG_ATH79_MACH_WZR_HP_G300NH2=y
 CONFIG_ATH79_MACH_WZR_HP_G450H=y
+CONFIG_ATH79_MACH_ZBT_WE1526=y
 CONFIG_ATH79_MACH_ZCN_1523H=y
 CONFIG_ATH79_NVRAM=y
 CONFIG_ATH79_PCI_ATH9K_FIXUP=y

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

@@ -1552,6 +1552,16 @@ config ATH79_MACH_MYNET_REXT
 	select ATH79_DEV_WMAC
 	select ATH79_NVRAM
 
+config ATH79_MACH_ZBT_WE1526
+	bool "Zbtlink ZBT-WE1526 board 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_ZCN_1523H
 	bool "Zcomax ZCN-1523H support"
 	select SOC_AR724X

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

@@ -205,6 +205,7 @@ obj-$(CONFIG_ATH79_MACH_WZR_HP_G300NH2)	+= mach-wzr-hp-g300nh2.o
 obj-$(CONFIG_ATH79_MACH_WZR_HP_AG300H)	+= mach-wzr-hp-ag300h.o
 obj-$(CONFIG_ATH79_MACH_WZR_HP_G450H)	+= mach-wzr-hp-g450h.o
 obj-$(CONFIG_ATH79_MACH_WZR_450HP2)	+= mach-wzr-450hp2.o
+obj-$(CONFIG_ATH79_MACH_ZBT_WE1526)	+= mach-zbt-we1526.o
 obj-$(CONFIG_ATH79_MACH_ZCN_1523H)	+= mach-zcn-1523h.o
 obj-$(CONFIG_ATH79_MACH_CARAMBOLA2)	+= mach-carambola2.o
 obj-$(CONFIG_ATH79_MACH_NBG6716)	+= mach-nbg6716.o

target/linux/ar71xx/files/arch/mips/ath79/mach-zbt-we1526.c

@@ -0,0 +1,153 @@
+/*
+ * Zbtlink ZBT-WE1526 board support
+ *
+ * Copyright (C) 2016 Piotr Dymacz <pepe2k@gmail.com>
+ *
+ * Based on mach-dr531.c and mach-tl-wr841n-v9.c
+ *
+ * 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 ZBT_WE1526_GPIO_LED_STATUS	13
+#define ZBT_WE1526_GPIO_LED_LAN1	16
+#define ZBT_WE1526_GPIO_LED_LAN2	15
+#define ZBT_WE1526_GPIO_LED_LAN3	14
+#define ZBT_WE1526_GPIO_LED_LAN4	11
+#define ZBT_WE1526_GPIO_LED_WAN		4
+#define ZBT_WE1526_GPIO_LED_WLAN	12
+
+#define ZBT_WE1526_GPIO_BTN_RESET	17
+
+#define ZBT_WE1526_KEYS_POLL_INTERVAL	20	/* msecs */
+#define ZBT_WE1526_KEYS_DEBOUNCE_INTERVAL	\
+	(3 * ZBT_WE1526_KEYS_POLL_INTERVAL)
+
+#define ZBT_WE1526_MAC0_OFFSET		0x0
+#define ZBT_WE1526_MAC1_OFFSET		0x6
+#define ZBT_WE1526_WMAC_CALDATA_OFFSET	0x1000
+
+static struct gpio_led zbt_we1526_leds_gpio[] __initdata = {
+	{
+		.name		= "zbt-we1526:green:status",
+		.gpio		= ZBT_WE1526_GPIO_LED_STATUS,
+		.active_low	= 1,
+	},
+	{
+		.name		= "zbt-we1526:green:lan1",
+		.gpio		= ZBT_WE1526_GPIO_LED_LAN1,
+		.active_low	= 1,
+	},
+	{
+		.name		= "zbt-we1526:green:lan2",
+		.gpio		= ZBT_WE1526_GPIO_LED_LAN2,
+		.active_low	= 1,
+	},
+	{
+		.name		= "zbt-we1526:green:lan3",
+		.gpio		= ZBT_WE1526_GPIO_LED_LAN3,
+		.active_low	= 1,
+	},
+	{
+		.name		= "zbt-we1526:green:lan4",
+		.gpio		= ZBT_WE1526_GPIO_LED_LAN4,
+		.active_low	= 1,
+	},
+	{
+		.name		= "zbt-we1526:green:wan",
+		.gpio		= ZBT_WE1526_GPIO_LED_WAN,
+		.active_low	= 1,
+	},
+	{
+		.name		= "zbt-we1526:green:wlan",
+		.gpio		= ZBT_WE1526_GPIO_LED_WLAN,
+		.active_low	= 1,
+	},
+};
+
+static struct gpio_keys_button zbt_we1526_gpio_keys[] __initdata = {
+	{
+		.desc		= "reset",
+		.type		= EV_KEY,
+		.code		= KEY_RESTART,
+		.debounce_interval = ZBT_WE1526_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= ZBT_WE1526_GPIO_BTN_RESET,
+		.active_low	= 1,
+	},
+};
+
+static void __init zbt_we1526_gpio_setup(void)
+{
+	/* For LED on GPIO4 */
+	ath79_gpio_function_disable(AR934X_GPIO_FUNC_CLK_OBS4_EN);
+	ath79_gpio_output_select(ZBT_WE1526_GPIO_LED_WAN, 0);
+
+	ath79_gpio_direction_select(ZBT_WE1526_GPIO_LED_STATUS, true);
+	ath79_gpio_direction_select(ZBT_WE1526_GPIO_LED_LAN1, true);
+	ath79_gpio_direction_select(ZBT_WE1526_GPIO_LED_LAN2, true);
+	ath79_gpio_direction_select(ZBT_WE1526_GPIO_LED_LAN3, true);
+	ath79_gpio_direction_select(ZBT_WE1526_GPIO_LED_LAN4, true);
+	ath79_gpio_direction_select(ZBT_WE1526_GPIO_LED_WAN, true);
+	ath79_gpio_direction_select(ZBT_WE1526_GPIO_LED_WLAN, true);
+
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(zbt_we1526_leds_gpio),
+				 zbt_we1526_leds_gpio);
+
+	ath79_register_gpio_keys_polled(-1, ZBT_WE1526_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(zbt_we1526_gpio_keys),
+					zbt_we1526_gpio_keys);
+}
+
+static void __init zbt_we1526_setup(void)
+{
+	u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
+
+	ath79_register_m25p80(NULL);
+
+	zbt_we1526_gpio_setup();
+
+	ath79_setup_ar933x_phy4_switch(false, false);
+
+	ath79_register_mdio(0, 0x0);
+
+	/* LAN */
+	ath79_eth1_data.duplex = DUPLEX_FULL;
+	ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
+	ath79_switch_data.phy_poll_mask |= BIT(4);
+	ath79_init_mac(ath79_eth1_data.mac_addr,
+		       art + ZBT_WE1526_MAC0_OFFSET, 0);
+	ath79_register_eth(1);
+
+	/* WAN */
+	ath79_switch_data.phy4_mii_en = 1;
+	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 + ZBT_WE1526_MAC1_OFFSET, 0);
+	ath79_register_eth(0);
+
+	ath79_register_wmac(art + ZBT_WE1526_WMAC_CALDATA_OFFSET, NULL);
+
+	ath79_register_usb();
+}
+
+MIPS_MACHINE(ATH79_MACH_ZBT_WE1526, "ZBT-WE1526", "Zbtlink ZBT-WE1526",
+	     zbt_we1526_setup);

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

@@ -266,6 +266,7 @@ enum ath79_mach_type {
 	ATH79_MACH_WZR_HP_G300NH2,	/* Buffalo WZR-HP-G300NH2 */
 	ATH79_MACH_WZR_HP_G450H,	/* Buffalo WZR-HP-G450H */
 	ATH79_MACH_WZR_450HP2,		/* Buffalo WZR-450HP2 */
+	ATH79_MACH_ZBT_WE1526,		/* Zbtlink ZBT-WE1526 */
 	ATH79_MACH_ZCN_1523H_2,		/* Zcomax ZCN-1523H-2-xx */
 	ATH79_MACH_ZCN_1523H_5,		/* Zcomax ZCN-1523H-5-xx */
 };

target/linux/ar71xx/image/legacy-devices.mk

@@ -705,6 +705,12 @@ define LegacyDevice/WZR450HP2
 endef
 LEGACY_DEVICES += WZR450HP2
 
+define LegacyDevice/ZBTWE1526
+  DEVICE_TITLE := Zbtlink ZBT-WE1526
+  DEVICE_PACKAGES := kmod-usb-core kmod-usb2
+endef
+LEGACY_DEVICES += ZBTWE1526
+
 define LegacyDevice/ZCN1523H28
   DEVICE_TITLE := Zcomax ZCN-1523H-2-8
 endef

target/linux/ar71xx/image/legacy.mk

@@ -964,6 +964,7 @@ $(eval $(call SingleProfile,AthLzma,64k,WPJ558_16M,wpj558-16M,WPJ558,ttyS0,11520
 $(eval $(call SingleProfile,AthLzma,64k,WRTNODE2Q,wrtnode2q,WRTNODE2Q,ttyS0,115200,$$(wrtnode2q_mtdlayout),KRuImage))
 $(eval $(call SingleProfile,AthLzma,64k,YUN_8M,yun-8M,Yun,ttyATH0,250000,$$(yun_mtdlayout_8M),RKuImage))
 $(eval $(call SingleProfile,AthLzma,64k,YUN_16M,yun-16M,Yun,ttyATH0,250000,$$(yun_mtdlayout_16M),RKuImage))
+$(eval $(call SingleProfile,AthLzma,64k,ZBTWE1526,zbt-we1526,ZBT-WE1526,ttyS0,115200,$$(ap147_mtdlayout),RKuImage))
 
 $(eval $(call SingleProfile,Belkin,64k,F9K1115V2,f9k1115v2,F9K1115V2,ttyS0,115200,$$(f9k1115v2_mtdlayout),BR-6679BAC))