ar71xx: add support for Rockeetech AP531B0

Specification:
- SoC: Qualcomm Atheros QCA9531 (650/400/216 MHz (CPU/DDR/AHB))
- RAM: 64 MiB DDR2
- Storage: 16 MiB of flash (optional 16 MiB second flash)
- Wireless: built into QCA9531 (Honey Bee), PHY modes b/g/n
- Ethernet: 1x100M (port0) 1x100M (port 4)
- PCI-E: x1
- SIMcard slot: x1
- USB 2.0 port: x1 (optional)
- Ext GPIO pin: x8
- UART for serial console: x1
- External watchdog: x1 (optional)
- Power supply: 9-48V (DC jack/passive PoE)

Installation through tftp:
- Copy <Firmware Image Name> into tftp directory
- Connect board via ttl port and Ethernet port
- Boot the AP531B0
- When "Autobooting in 1 seconds" appears press Enter
- Set serverip and ipaddr appropriate
  (e.g. setenv serverip 192.168.88.10;setenv ipaddr 192.168.88.1)
- Enter "tftp 0x8050000 <Firmware Image Name>"
- Enter "erase 0x9f050000 +$filesize"
- Enter "cp.b 0x80500000 0x9f050000 $filesize"
- Enter "reset"

Signed-off-by: Shuanglin Liu <roboidler@gmail.com>

4 files changed, 126 insertions, 0 deletions

diff --git a/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt b/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
index 514d05d6de..72f3591bbe 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
+++ b/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
@@ -183,6 +183,18 @@ config ATH79_MACH_AP152
 	select ATH79_DEV_WMAC
 	select ATH79_DEV_AP9X_PCI if PCI
 
+config ATH79_MACH_AP531B0
+	bool "Rockeetech AP531B0 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_SPI
+	select ATH79_DEV_USB
+	select ATH79_DEV_WMAC
+
 config ATH79_MACH_AP90Q
 	bool "YunCore AP90Q support"
 	select SOC_QCA953X
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/Makefile b/target/linux/ar71xx/files/arch/mips/ath79/Makefile
index 64752591d5..73832448cd 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/Makefile
+++ b/target/linux/ar71xx/files/arch/mips/ath79/Makefile
@@ -53,6 +53,7 @@ obj-$(CONFIG_ATH79_MACH_AP136)			+= mach-ap136.o
 obj-$(CONFIG_ATH79_MACH_AP143)			+= mach-ap143.o
 obj-$(CONFIG_ATH79_MACH_AP147)			+= mach-ap147.o
 obj-$(CONFIG_ATH79_MACH_AP152)			+= mach-ap152.o
+obj-$(CONFIG_ATH79_MACH_AP531B0)		+= mach-ap531b0.o
 obj-$(CONFIG_ATH79_MACH_AP90Q)			+= mach-ap90q.o
 obj-$(CONFIG_ATH79_MACH_AP96)			+= mach-ap96.o
 obj-$(CONFIG_ATH79_MACH_ARCHER_C59_V1)		+= mach-archer-c59-v1.o
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-ap531b0.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-ap531b0.c
new file mode 100644
index 0000000000..3cb2697955
--- /dev/null
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-ap531b0.c
@@ -0,0 +1,112 @@
+/*
+ * Rockeetech AP531B0 11ng wireless AP board support
+ *
+ *  Copyright (C) 2013 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2016 Shuanglin Liu <roboidler@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/platform_device.h>
+#include <linux/ath9k_platform.h>
+#include <linux/ar8216_platform.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-spi.h"
+#include "dev-usb.h"
+#include "dev-wmac.h"
+#include "machtypes.h"
+#include "pci.h"
+#include "dev-ap9x-pci.h"
+
+#define AP531B0_GPIO_LED_WLAN		12
+#define AP531B0_GPIO_LED_STATUS		11
+
+#define AP531B0_GPIO_RST_BTN		17
+
+#define AP531B0_KEYS_POLL_INTERVAL	20	/* msecs */
+#define AP531B0_KEYS_DEBOUNCE_INTERVAL	(3 * AP531B0_KEYS_POLL_INTERVAL)
+
+#define AP531B0_WMAC_CALDATA_OFFSET	0x1000
+
+
+static struct gpio_led ap531b0_leds_gpio[] __initdata = {
+	{
+		.name		= "ap531b0:green:status",
+		.gpio		= AP531B0_GPIO_LED_STATUS,
+		.active_low	= 1,
+	},
+	{
+		.name		= "ap531b0:green:wlan",
+		.gpio		= AP531B0_GPIO_LED_WLAN,
+		.active_low	= 1,
+	}
+};
+
+static struct gpio_keys_button ap531b0_gpio_keys[] __initdata = {
+	{
+		.desc		= "reset",
+		.type		= EV_KEY,
+		.code		= KEY_RESTART,
+		.debounce_interval = AP531B0_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= AP531B0_GPIO_RST_BTN,
+		.active_low	= 1,
+	},
+};
+
+
+static void __init ap531b0_gpio_led_setup(void)
+{
+
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(ap531b0_leds_gpio),
+				 ap531b0_leds_gpio);
+
+	ath79_register_gpio_keys_polled(-1, AP531B0_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(ap531b0_gpio_keys),
+					ap531b0_gpio_keys);
+}
+
+static void __init ap531b0_setup(void)
+{
+	u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
+	u8 *pmac;
+
+	ath79_register_m25p80(NULL);
+	ap531b0_gpio_led_setup();
+	ath79_register_usb();
+	ath79_register_pci();
+
+	ath79_register_mdio(0, 0x0);
+
+	pmac = art + AP531B0_WMAC_CALDATA_OFFSET + 2;
+	ath79_init_mac(ath79_eth0_data.mac_addr, pmac, 1);
+	ath79_init_mac(ath79_eth1_data.mac_addr, pmac, 2);
+
+	ath79_register_wmac(art + AP531B0_WMAC_CALDATA_OFFSET, pmac);
+
+	/* WAN port */
+	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
+	ath79_eth0_data.speed = SPEED_100;
+	ath79_eth0_data.duplex = DUPLEX_FULL;
+	ath79_eth0_data.phy_mask = BIT(4);
+	ath79_register_eth(0);
+
+	/* LAN ports */
+	ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
+	ath79_eth1_data.speed = SPEED_1000;
+	ath79_eth1_data.duplex = DUPLEX_FULL;
+	ath79_switch_data.phy_poll_mask |= BIT(4);
+	ath79_switch_data.phy4_mii_en = 1;
+	ath79_register_eth(1);
+}
+
+MIPS_MACHINE(ATH79_MACH_AP531B0, "AP531B0", "Rockeetech AP531B0",
+	     ap531b0_setup);
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
index 4cad6287a8..f3277cd2a0 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
+++ b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
@@ -37,6 +37,7 @@ enum ath79_mach_type {
 	ATH79_MACH_AP143,			/* Atheros AP143 reference board */
 	ATH79_MACH_AP147_010,			/* Atheros AP147-010 reference board */
 	ATH79_MACH_AP152,			/* Atheros AP152 reference board */
+	ATH79_MACH_AP531B0,			/* Rockeetech AP531B0 */
 	ATH79_MACH_AP90Q,			/* YunCore AP90Q */
 	ATH79_MACH_AP96,			/* Atheros AP96 */
 	ATH79_MACH_ARCHER_C5,			/* TP-LINK Archer C5 board */