ar71xx: add kernel support for GL-Inet V1 boards/routers

The GL-Connect GL.iNet v1 router is basically a TP-Link TL-WR703N with
more DRAM/Flash, 2x Ethernet ports and console/GPIO header in the same
small form-factor:
<http://www.gl-inet.com/w/?lang=en>

Moreover, the manufacturer is promoting the OpenWrt usage to replace
the original firmware and proposing patches against both AA and trunk:
<http://www.gl-inet.com/w/?p=398&lang=en>

This is a clean up of the original manufacturer GPLv2 patch by alzhao,
proposed to the list by Mark Janssen.

Signed-off-by: Michel Stempin <michel.stempin@wanadoo.fr>
Signed-off-by: Mark Janssen <mark@sig-io.nl>
Signed-off-by: alzhao <alzhao@gmail.com>
Patchwork: http://patchwork.openwrt.org/patch/5273/
[juhosg:
  - remove user-space and image generation support, will be included
    from other patches,
  - fix coding style and drop superfluous comment in mach-gl-inet.c,
  - rename and refresh kernel patch,
  - adjust subject]
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 41618

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

@@ -0,0 +1,104 @@
+/*
+ *  GL-CONNECT iNet board support
+ *
+ *  Copyright (C) 2011 dongyuqi <729650915@qq.com>
+ *  Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2013 alzhao <alzhao@gmail.com>
+ *  Copyright (C) 2014 Michel Stempin <michel.stempin@wanadoo.fr>
+ *
+ *  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 <asm/mach-ath79/ath79.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 GL_INET_GPIO_LED_WLAN		0
+#define GL_INET_GPIO_LED_LAN		13
+#define GL_INET_GPIO_BTN_RESET		11
+
+#define GL_INET_KEYS_POLL_INTERVAL	20	/* msecs */
+#define GL_INET_KEYS_DEBOUNCE_INTERVAL	(3 * GL_INET_KEYS_POLL_INTERVAL)
+
+static const char * gl_inet_part_probes[] = {
+	"tp-link", /* dont change, this will use tplink parser */
+	NULL ,
+};
+
+static struct flash_platform_data gl_inet_flash_data = {
+	.part_probes = gl_inet_part_probes,
+};
+
+static struct gpio_led gl_inet_leds_gpio[] __initdata = {
+	{
+		.name = "gl-connect:red:wireless",
+		.gpio = GL_INET_GPIO_LED_WLAN,
+		.active_low = 0,
+	},
+	{
+		.name = "gl-connect:green:lan",
+		.gpio = GL_INET_GPIO_LED_LAN,
+		.active_low = 0,
+		.default_state = 1,
+	},
+};
+
+static struct gpio_keys_button gl_inet_gpio_keys[] __initdata = {
+	{
+		.desc = "reset",
+		.type = EV_KEY,
+		.code = KEY_RESTART,
+		.debounce_interval = GL_INET_KEYS_DEBOUNCE_INTERVAL,
+		.gpio = GL_INET_GPIO_BTN_RESET,
+		.active_low = 0,
+	}
+};
+
+static void __init gl_inet_setup(void)
+{
+	/* get the mac address which is stored in the 1st 64k uboot MTD */
+	u8 *mac = (u8 *) KSEG1ADDR(0x1f01fc00);
+
+	/* get the art address, which is the last 64K. By using
+	   0x1fff1000, it doesn't matter it is 4M, 8M or 16M flash */
+	u8 *ee = (u8 *) KSEG1ADDR(0x1fff1000);
+
+	/* disable PHY_SWAP and PHY_ADDR_SWAP bits */
+	ath79_setup_ar933x_phy4_switch(false, false);
+
+	/* register flash. MTD will use tp-link parser to parser MTD */
+	ath79_register_m25p80(&gl_inet_flash_data);
+
+	/* register gpio LEDs and keys */
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(gl_inet_leds_gpio),
+				 gl_inet_leds_gpio);
+	ath79_register_gpio_keys_polled(-1, GL_INET_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(gl_inet_gpio_keys),
+					gl_inet_gpio_keys);
+
+	/* enable usb */
+	ath79_register_usb();
+
+	/* register eth0 as WAN, eth1 as LAN */
+	ath79_init_mac(ath79_eth0_data.mac_addr, mac, 0);
+	ath79_register_mdio(0, 0x0);
+	ath79_register_eth(0);
+	ath79_init_mac(ath79_eth1_data.mac_addr, mac, 0);
+	ath79_register_eth(1);
+
+	/* register wireless mac with cal data */
+	ath79_register_wmac(ee, mac);
+}
+
+MIPS_MACHINE(ATH79_MACH_GL_INET, "GL-INET", "GL-CONNECT INET v1",
+	     gl_inet_setup);