target: ar71xx: add support for COMFAST CF-E316N v2 board

This adds full support (sans sysupgrading from vendor firmware) for the COMFAST
CF-E316N v2 (aka CF-E316V2, CF-E316N-V2 and CF-E316Nv2.0, no FCC ID) by
Shenzhen Four Seas Global Link Network Technology Co., Ltd (this company is
actively refusing to provide GPL'd sources for the OpenWrt version they ship
with the device, damn them).

Signed-off-by: Paul Fertser <fercerpav@gmail.com>

SVN-Revision: 46852

1 files changed, 132 insertions, 0 deletions

diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-cf-e316n-v2.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-cf-e316n-v2.c
new file mode 100644
index 0000000000..cf3d33a552
--- /dev/null
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-cf-e316n-v2.c
@@ -0,0 +1,132 @@
+/*
+ *  COMFAST CF-E316N v2
+ *  by Shenzhen Four Seas Global Link Network Technology Co., Ltd
+ *
+ *  aka CF-E316V2, CF-E316N-V2 and CF-E316Nv2.0 (no FCC ID)
+ *
+ *  Copyright (C) 2015 Paul Fertser <fercerpav@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/platform_device.h>
+#include <linux/timer.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-wmac.h"
+#include "dev-usb.h"
+#include "machtypes.h"
+
+static struct gpio_led cf_e316n_v2_leds_gpio[] __initdata = {
+	{
+		.name		= "cf-e316n-v2:blue:diag",
+		.gpio		= 0,
+		.active_low	= 0,
+	}, {
+		.name		= "cf-e316n-v2:red:diag",
+		.gpio		= 2,
+		.active_low	= 0,
+	}, {
+		.name		= "cf-e316n-v2:green:diag",
+		.gpio		= 3,
+		.active_low	= 0,
+	}, {
+		.name		= "cf-e316n-v2:blue:wlan",
+		.gpio		= 12,
+		.active_low	= 1,
+	}, {
+		.name		= "cf-e316n-v2:blue:wan",
+		.gpio		= 17,
+		.active_low	= 1,
+	}, {
+		.name		= "cf-e316n-v2:blue:lan",
+		.gpio		= 19,
+		.active_low	= 1,
+	},
+};
+
+static struct gpio_keys_button cf_e316n_v2_gpio_keys[] __initdata = {
+	{
+		.desc		= "Reset button",
+		.type		= EV_KEY,
+		.code		= KEY_RESTART,
+		.debounce_interval = 60,
+		.gpio		= 20,
+		.active_low	= 1,
+	},
+};
+
+/* There's a Pericon Technology PT7A7514 connected to GPIO 16 */
+#define EXT_WATCHDOG_GPIO	16
+static struct timer_list gpio_wdt_timer;
+
+static void gpio_wdt_toggle(unsigned long period)
+{
+	static int state;
+	state = !state;
+	gpio_set_value(EXT_WATCHDOG_GPIO, state);
+	mod_timer(&gpio_wdt_timer, jiffies + period);
+}
+
+static void __init cf_e316n_v2_setup(void)
+{
+	u8 *maclan = (u8 *) KSEG1ADDR(0x1f010000);
+	u8 *macwlan = (u8 *) KSEG1ADDR(0x1f011002);
+	u8 *ee = (u8 *) KSEG1ADDR(0x1f011000);
+	u8 tmpmac[ETH_ALEN];
+
+	gpio_request(EXT_WATCHDOG_GPIO, "PT7A7514 watchdog");
+	gpio_direction_output(EXT_WATCHDOG_GPIO, 0);
+	setup_timer(&gpio_wdt_timer, gpio_wdt_toggle, msecs_to_jiffies(500));
+	gpio_wdt_toggle(msecs_to_jiffies(1));
+
+	ath79_register_m25p80(NULL);
+
+	ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_SW_PHY_SWAP);
+	ath79_register_mdio(1, 0x0);
+
+	/* GMAC0 is connected to the PHY0 of the internal switch */
+	ath79_switch_data.phy4_mii_en = 1;
+	ath79_switch_data.phy_poll_mask = BIT(0);
+	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
+	ath79_eth0_data.phy_mask = BIT(0);
+	ath79_eth0_data.mii_bus_dev = &ath79_mdio1_device.dev;
+	ath79_init_mac(ath79_eth0_data.mac_addr, maclan, 0);
+	ath79_register_eth(0);
+
+	/* GMAC1 is connected to the internal switch */
+	ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
+	ath79_init_mac(ath79_eth1_data.mac_addr, maclan, 2);
+	ath79_register_eth(1);
+
+	/* Enable 2x Skyworks SE2576L WLAN power amplifiers */
+	gpio_request(13, "RF Amp 1");
+	gpio_direction_output(13, 1);
+	gpio_request(14, "RF Amp 2");
+	gpio_direction_output(14, 1);
+	ath79_init_mac(tmpmac, macwlan, 0);
+	ath79_register_wmac(ee, tmpmac);
+
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(cf_e316n_v2_leds_gpio),
+				 cf_e316n_v2_leds_gpio);
+
+	ath79_register_gpio_keys_polled(1, 20,
+					ARRAY_SIZE(cf_e316n_v2_gpio_keys),
+					cf_e316n_v2_gpio_keys);
+
+	/* J1 is a High-Speed USB port, pin 1 is Vcc */
+	ath79_register_usb();
+}
+
+MIPS_MACHINE(ATH79_MACH_CF_E316N_V2, "CF-E316N-V2", "COMFAST CF-E316N v2",
+	     cf_e316n_v2_setup);