ar71xx: add kernel support for HiWiFi HC6361.

This board manufactured by HiWiFi has the following features.

 - Atheros 9331 SoC.
 - 16MB flash and 64MB RAM.
 - 4GB eMMC storage via SK6226 USB 2.0 controller.
 - 2 LAN and 1 WAN ethernet ports with LEDs on them.
 - 3 blue LEDs on the front panel.
 - 1 button labeled as "reset".
 - Powered by a USB cable.

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>

SVN-Revision: 40973

target/linux/ar71xx/config-3.10

@@ -50,6 +50,7 @@ CONFIG_ATH79_MACH_EAP7660D=y
 CONFIG_ATH79_MACH_EW_DORIN=y
 CONFIG_ATH79_MACH_GS_OOLITE=y
 CONFIG_ATH79_MACH_HORNET_UB=y
+CONFIG_ATH79_MACH_HIWIFI_HC6361=y
 CONFIG_ATH79_MACH_JA76PF=y
 CONFIG_ATH79_MACH_JWAP003=y
 CONFIG_ATH79_MACH_MR600=y

target/linux/ar71xx/files/arch/mips/ath79/mach-hiwifi-hc6361.c

@@ -0,0 +1,115 @@
+/*
+ *  HiWiFi HC6361 board support
+ *
+ *  Copyright (C) 2012-2013 eric
+ *  Copyright (C) 2014 Yousong Zhou <yszhou4tech@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/proc_fs.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 HIWIFI_HC6361_GPIO_LED_WLAN_2P4		0	/* 2.4G WLAN LED */
+#define HIWIFI_HC6361_GPIO_LED_SYSTEM		1	/* System LED */
+#define HIWIFI_HC6361_GPIO_LED_INTERNET		27	/* Internet LED */
+
+#define HIWIFI_HC6361_GPIO_USBPOWER		20	/* USB power control */
+#define HIWIFI_HC6361_GPIO_BTN_RST		11	/* Reset button */
+
+#define HIWIFI_HC6361_KEYS_POLL_INTERVAL	20	/* msecs */
+#define HIWIFI_HC6361_KEYS_DEBOUNCE_INTERVAL	\
+	(3 * HIWIFI_HC6361_KEYS_POLL_INTERVAL)
+
+static struct gpio_led hiwifi_leds_gpio[] __initdata = {
+	{
+		.name		= "hiwifi:blue:wlan-2p4",
+		.gpio		= HIWIFI_HC6361_GPIO_LED_WLAN_2P4,
+		.active_low	= 1,
+	}, {
+		.name		= "hiwifi:blue:system",
+		.gpio		= HIWIFI_HC6361_GPIO_LED_SYSTEM,
+		.active_low	= 1,
+	}, {
+		.name		= "hiwifi:blue:internet",
+		.gpio		= HIWIFI_HC6361_GPIO_LED_INTERNET,
+		.active_low	= 1,
+	}
+};
+
+static struct gpio_keys_button hiwifi_gpio_keys[] __initdata = {
+	{
+		.desc		= "reset",
+		.type		= EV_KEY,
+		.code		= KEY_RESTART,
+		.debounce_interval = HIWIFI_HC6361_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= HIWIFI_HC6361_GPIO_BTN_RST,
+		.active_low	= 1,
+	}
+};
+
+static void __init get_mac_from_bdinfo(u8 *mac, void *bdinfo)
+{
+	if (sscanf(bdinfo, "fac_mac = %2hhx:%2hhx:%2hhx:%2hhx:%2hhx:%2hhx",
+				&mac[0], &mac[1], &mac[2], &mac[3],
+				&mac[4], &mac[5]) == 6) {
+		return;
+	}
+
+	printk(KERN_WARNING "Parsing MAC address failed.\n");
+	memcpy(mac, "\x00\xba\xbe\x00\x00\x00", 6);
+}
+
+static void __init hiwifi_hc6361_setup(void)
+{
+	u8 *ee = (u8 *) KSEG1ADDR(0x1fff1000);
+	u8 mac[6];
+
+	ath79_setup_ar933x_phy4_switch(false, false);
+
+	ath79_register_m25p80(NULL);
+	ath79_gpio_function_enable(
+			AR933X_GPIO_FUNC_ETH_SWITCH_LED0_EN |
+			AR933X_GPIO_FUNC_ETH_SWITCH_LED1_EN |
+			AR933X_GPIO_FUNC_ETH_SWITCH_LED2_EN |
+			AR933X_GPIO_FUNC_ETH_SWITCH_LED3_EN |
+			AR933X_GPIO_FUNC_ETH_SWITCH_LED4_EN);
+
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(hiwifi_leds_gpio),
+			hiwifi_leds_gpio);
+	ath79_register_gpio_keys_polled(-1, HIWIFI_HC6361_KEYS_POLL_INTERVAL,
+			ARRAY_SIZE(hiwifi_gpio_keys),
+			hiwifi_gpio_keys);
+	gpio_request_one(HIWIFI_HC6361_GPIO_USBPOWER,
+			GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
+			"USB power");
+	ath79_register_usb();
+
+	get_mac_from_bdinfo(mac, (void *) KSEG1ADDR(0x1f010180));
+	ath79_init_mac(ath79_eth0_data.mac_addr, mac, 1);
+	ath79_init_mac(ath79_eth1_data.mac_addr, mac, 0);
+
+	ath79_register_mdio(0, 0x0);
+
+	ath79_register_eth(1);
+	ath79_register_eth(0);
+
+	ath79_register_wmac(ee, mac);
+}
+
+MIPS_MACHINE(ATH79_MACH_HIWIFI_HC6361, "HiWiFi-HC6361",
+		"HiWiFi HC6361", hiwifi_hc6361_setup);

target/linux/ar71xx/patches-3.10/709-MIPS-ath79-HiWiFi-HC6361-support.patch

@@ -0,0 +1,39 @@
+--- a/arch/mips/ath79/Makefile
++++ b/arch/mips/ath79/Makefile
+@@ -63,6 +63,7 @@ obj-$(CONFIG_ATH79_MACH_DRAGINO2)	+= mac
+ obj-$(CONFIG_ATH79_MACH_EW_DORIN)	+= mach-ew-dorin.o
+ obj-$(CONFIG_ATH79_MACH_EAP7660D)	+= mach-eap7660d.o
+ obj-$(CONFIG_ATH79_MACH_GS_OOLITE)	+= mach-gs-oolite.o
++obj-$(CONFIG_ATH79_MACH_HIWIFI_HC6361)	+= mach-hiwifi-hc6361.o
+ obj-$(CONFIG_ATH79_MACH_JA76PF)		+= mach-ja76pf.o
+ obj-$(CONFIG_ATH79_MACH_JWAP003)	+= mach-jwap003.o
+ obj-$(CONFIG_ATH79_MACH_HORNET_UB)	+= mach-hornet-ub.o
+--- a/arch/mips/ath79/machtypes.h
++++ b/arch/mips/ath79/machtypes.h
+@@ -50,6 +50,7 @@ enum ath79_mach_type {
+ 	ATH79_MACH_EW_DORIN_ROUTER,	/* embedded wireless Dorin Router Platform */
+ 	ATH79_MACH_EAP7660D,		/* Senao EAP7660D */
+ 	ATH79_MACH_GS_OOLITE,           /* GS OOLITE V1.0 */
++	ATH79_MACH_HIWIFI_HC6361,	/* HiWiFi HC6361 */
+ 	ATH79_MACH_JA76PF,		/* jjPlus JA76PF */
+ 	ATH79_MACH_JA76PF2,		/* jjPlus JA76PF2 */
+ 	ATH79_MACH_JWAP003,		/* jjPlus JWAP003 */
+--- a/arch/mips/ath79/Kconfig
++++ b/arch/mips/ath79/Kconfig
+@@ -347,6 +347,16 @@ config ATH79_MACH_GS_OOLITE
+        select ATH79_DEV_USB
+        select ATH79_DEV_WMAC
+ 
++config ATH79_MACH_HIWIFI_HC6361
++	bool "HiWiFi HC6361 board support"
++	select SOC_AR933X
++	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_JA76PF
+ 	bool "jjPlus JA76PF board support"
+ 	select SOC_AR71XX