ar71xx: add support for Ubiquiti Litebeam M5

Specification:
- SoC: Atheros AR9342
- Flash: 8 MiB
- RAM: 64 MiB
- UART: 1x UART on PCB - 115200 8N1
- Ethernet: 1 x 100 Mbit with passive PoE (24V/0.2A)

Doesn't work:
* Flash via TFTP with Ubiquiti Uboot

Installation via vendor firmware:
- upload factory image via webinterface

Signed-off-by: Arne Zachlod <arne@nerdkeller.org>

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

@@ -408,6 +408,10 @@ hornet-ub-x2)
 lan-turtle)
 	ucidef_set_led_netdev "wan" "WAN" "$board:orange:system" "eth1"
 	;;
+lbe-m5)
+	ucidef_set_led_netdev "lan" "LAN" "ubnt:green:lan" "eth0"
+	ucidef_set_led_wlan "wlan" "WLAN" "ubnt:green:wlan" "phy0tpt"
+	;;
 mc-mac1200r)
 	ucidef_set_led_wlan "wlan2g" "WLAN2G" "mercury:green:wlan2g" "phy1tpt"
 	ucidef_set_led_wlan "wlan5g" "WLAN5G" "mercury:green:wlan5g" "phy0tpt"

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

@@ -82,6 +82,7 @@ ar71xx_setup_interfaces()
 	fritz300e|\
 	gl-usb150|\
 	hiveap-121|\
+	lbe-m5|\
 	loco-m-xw|\
 	mr12|\
 	mr16|\

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

@@ -260,6 +260,9 @@ get_status_led() {
 	lan-turtle)
 		status_led="$board:orange:system"
 		;;
+	lbe-m5)
+		status_led="ubnt:green:sys"
+		;;
 	ls-sr71)
 		status_led="ubnt:green:d22"
 		;;

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

@@ -741,6 +741,9 @@ ar71xx_board_detect() {
 	*"Lima"*)
 		name="lima"
 		;;
+	*"Litebeam M5"*)
+		name="lbe-m5"
+		;;
 	*"Loco M XW")
 		name="loco-m-xw"
 		;;

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

@@ -256,6 +256,7 @@ platform_check_image() {
 	hiwifi-hc6361|\
 	hornet-ub-x2|\
 	jwap230|\
+	lbe-m5|\
 	lima|\
 	loco-m-xw|\
 	mzk-w04nu|\

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

@@ -12,6 +12,7 @@
 
 #include <linux/init.h>
 #include <linux/pci.h>
+#include <linux/gpio.h>
 #include <linux/platform_device.h>
 #include <linux/ath9k_platform.h>
 #include <linux/etherdevice.h>
@@ -503,6 +504,60 @@ static void __init ubnt_loco_m_xw_setup(void)
 	ath79_register_eth(0);
 }
 
+#define UBNT_LBE_M5_GPIO_LED_LAN		13
+#define UBNT_LBE_M5_GPIO_LED_WLAN		14
+#define UBNT_LBE_M5_GPIO_LED_SYS		16
+
+static struct gpio_led ubnt_lbe_m5_leds_gpio[] __initdata = {
+	{
+		.name		= "ubnt:green:lan",
+		.gpio		= UBNT_LBE_M5_GPIO_LED_LAN,
+		.active_low	= 1,
+	}, {
+		.name		= "ubnt:green:wlan",
+		.gpio		= UBNT_LBE_M5_GPIO_LED_WLAN,
+		.active_low	= 1,
+	}, {
+		.name		= "ubnt:green:sys",
+		.gpio		= UBNT_LBE_M5_GPIO_LED_SYS,
+		.active_low	= 1,
+	},
+};
+
+static void __init ubnt_lbe_m5_setup(void)
+{
+	u8 *eeprom = (u8 *) KSEG1ADDR(0x1fff0000);
+
+	ath79_register_m25p80(NULL);
+
+	ath79_register_wmac(eeprom + UAP_PRO_WMAC_CALDATA_OFFSET, NULL);
+	ap91_pci_init(eeprom + UAP_PRO_PCI_CALDATA_OFFSET, NULL);
+
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(ubnt_lbe_m5_leds_gpio),
+				 ubnt_lbe_m5_leds_gpio);
+	ath79_register_gpio_keys_polled(-1, UBNT_XM_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(ubnt_xm_gpio_keys),
+					ubnt_xm_gpio_keys);
+
+	ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_MII_GMAC0 |
+				   AR934X_ETH_CFG_MII_GMAC0_SLAVE);
+	ath79_init_mac(ath79_eth0_data.mac_addr,
+		       eeprom + UAP_PRO_MAC0_OFFSET, 0);
+
+	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
+	ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
+
+	gpio_request_one(0, GPIOF_OUT_INIT_LOW | GPIOF_ACTIVE_LOW |
+			 GPIOF_EXPORT_DIR_FIXED, "SPI nWP");
+
+	mdiobus_register_board_info(ubnt_loco_m_xw_mdio_info,
+				    ARRAY_SIZE(ubnt_loco_m_xw_mdio_info));
+
+	ath79_register_mdio(0, ~BIT(1));
+	ath79_eth0_data.phy_mask = BIT(1);
+	ath79_register_eth(0);
+}
+
 static void __init ubnt_rocket_m_xw_setup(void)
 {
 	u8 *eeprom = (u8 *) KSEG1ADDR(0x1fff0000);
@@ -590,6 +645,9 @@ static void __init ubnt_rocket_m_ti_setup(void)
 MIPS_MACHINE(ATH79_MACH_UBNT_NANO_M_XW, "UBNT-NM-XW", "Ubiquiti Nanostation M XW",
 	     ubnt_nano_m_xw_setup);
 
+MIPS_MACHINE(ATH79_MACH_UBNT_LBE_M5, "UBNT-LBE-M5", "Ubiquiti Litebeam M5",
+		ubnt_lbe_m5_setup);
+
 MIPS_MACHINE(ATH79_MACH_UBNT_LOCO_M_XW, "UBNT-LOCO-XW", "Ubiquiti Loco M XW",
 	     ubnt_loco_m_xw_setup);
 

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

@@ -303,6 +303,7 @@ enum ath79_mach_type {
 	ATH79_MACH_UBNT_AIRGWP,			/* Ubiquiti AirGateway Pro */
 	ATH79_MACH_UBNT_AIRROUTER,		/* Ubiquiti AirRouter */
 	ATH79_MACH_UBNT_BULLET_M,		/* Ubiquiti Bullet M */
+	ATH79_MACH_UBNT_LBE_M5,			/* Ubiquiti Litebeam M5 */
 	ATH79_MACH_UBNT_LOCO_M_XW,		/* Ubiquiti Loco M XW */
 	ATH79_MACH_UBNT_LSSR71,			/* Ubiquiti LS-SR71 */
 	ATH79_MACH_UBNT_LSX,			/* Ubiquiti LSX */

target/linux/ar71xx/image/generic-ubnt.mk

@@ -157,6 +157,13 @@ define Device/ubnt-nano-m-xw
 endef
 TARGET_DEVICES += ubnt-nano-m-xw
 
+define Device/ubnt-lbe-m5
+  $(Device/ubnt-xw)
+  DEVICE_TITLE := Ubiquiti Litebeam M5
+  BOARDNAME := UBNT-LBE-M5
+endef
+TARGET_DEVICES += ubnt-lbe-m5
+
 define Device/ubnt-loco-m-xw
   $(Device/ubnt-xw)
   DEVICE_TITLE := Ubiquiti Loco XW