ar71xx: add kernel support for WD My Net N750

Signed-off-by: Felix Kaechele <heffer@fedoraproject.org>
[juhosg: use a separate patch for kernel changes]
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 39077

1 files changed, 196 insertions, 0 deletions

diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-mynet-n750.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-mynet-n750.c
new file mode 100644
index 0000000000..60f68cd6a1
--- /dev/null
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-mynet-n750.c
@@ -0,0 +1,196 @@
+/*
+ *  WD My Net N750 board support
+ *
+ *  Copyright (C) 2013 Felix Kaechele <felix@fetzig.org>
+ *  Copyright (C) 2013 Gabor Juhos <juhosg@openwrt.org>
+ *
+ *  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/pci.h>
+#include <linux/phy.h>
+#include <linux/gpio.h>
+#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-ap9x-pci.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 "nvram.h"
+
+
+/*
+ * Taken from GPL bootloader source:
+ *   board/ar7240/db12x/alpha_gpio.c
+ */
+#define MYNET_N750_GPIO_LED_WIFI	11
+#define MYNET_N750_GPIO_LED_INTERNET	12
+#define MYNET_N750_GPIO_LED_WPS		13
+#define MYNET_N750_GPIO_LED_POWER	14
+
+#define MYNET_N750_GPIO_BTN_RESET	17
+#define MYNET_N750_GPIO_BTN_WPS		19
+
+#define MYNET_N750_GPIO_EXTERNAL_LNA0	15
+#define MYNET_N750_GPIO_EXTERNAL_LNA1	18
+
+#define MYNET_N750_KEYS_POLL_INTERVAL	20	/* msecs */
+#define MYNET_N750_KEYS_DEBOUNCE_INTERVAL (3 * MYNET_N750_KEYS_POLL_INTERVAL)
+
+#define MYNET_N750_WMAC_CALDATA_OFFSET	0x1000
+#define MYNET_N750_PCIE_CALDATA_OFFSET	0x5000
+
+#define MYNET_N750_NVRAM_ADDR		0x1f058010
+#define MYNET_N750_NVRAM_SIZE		0x7ff0
+
+static struct gpio_led mynet_n750_leds_gpio[] __initdata = {
+	{
+		.name		= "wd:blue:power",
+		.gpio		= MYNET_N750_GPIO_LED_POWER,
+		.active_low	= 0,
+	},
+	{
+		.name		= "wd:blue:wps",
+		.gpio		= MYNET_N750_GPIO_LED_WPS,
+		.active_low	= 0,
+	},
+	{
+		.name		= "wd:blue:wireless",
+		.gpio		= MYNET_N750_GPIO_LED_WIFI,
+		.active_low	= 0,
+	},
+	{
+		.name		= "wd:blue:internet",
+		.gpio		= MYNET_N750_GPIO_LED_INTERNET,
+		.active_low	= 0,
+	},
+};
+
+static struct gpio_keys_button mynet_n750_gpio_keys[] __initdata = {
+	{
+		.desc		= "Reset button",
+		.type		= EV_KEY,
+		.code		= KEY_RESTART,
+		.debounce_interval = MYNET_N750_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= MYNET_N750_GPIO_BTN_RESET,
+		.active_low	= 1,
+	},
+	{
+		.desc		= "WPS button",
+		.type		= EV_KEY,
+		.code		= KEY_WPS_BUTTON,
+		.debounce_interval = MYNET_N750_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= MYNET_N750_GPIO_BTN_WPS,
+		.active_low	= 1,
+	},
+};
+
+static struct ar8327_pad_cfg mynet_n750_ar8327_pad0_cfg = {
+	.mode = AR8327_PAD_MAC_RGMII,
+	.txclk_delay_en = true,
+	.rxclk_delay_en = true,
+	.txclk_delay_sel = AR8327_CLK_DELAY_SEL1,
+	.rxclk_delay_sel = AR8327_CLK_DELAY_SEL2,
+};
+
+static struct ar8327_led_cfg mynet_n750_ar8327_led_cfg = {
+	.led_ctrl0 = 0xc737c737,
+	.led_ctrl1 = 0x00000000,
+	.led_ctrl2 = 0x00000000,
+	.led_ctrl3 = 0x0030c300,
+	.open_drain = false,
+};
+
+static struct ar8327_platform_data mynet_n750_ar8327_data = {
+	.pad0_cfg = &mynet_n750_ar8327_pad0_cfg,
+	.port0_cfg = {
+		.force_link = 1,
+		.speed = AR8327_PORT_SPEED_1000,
+		.duplex = 1,
+		.txpause = 1,
+		.rxpause = 1,
+	},
+	.led_cfg = &mynet_n750_ar8327_led_cfg,
+};
+
+static struct mdio_board_info mynet_n750_mdio0_info[] = {
+	{
+		.bus_id = "ag71xx-mdio.0",
+		.phy_addr = 0,
+		.platform_data = &mynet_n750_ar8327_data,
+	},
+};
+
+static void mynet_n750_get_mac(const char *name, char *mac)
+{
+	u8 *nvram = (u8 *) KSEG1ADDR(MYNET_N750_NVRAM_ADDR);
+	int err;
+
+	err = ath79_nvram_parse_mac_addr(nvram, MYNET_N750_NVRAM_SIZE,
+					 name, mac);
+	if (err)
+		pr_err("no MAC address found for %s\n", name);
+}
+
+static void __init mynet_n750_setup(void)
+{
+	u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
+	u8 tmpmac[ETH_ALEN];
+
+	ath79_register_m25p80(NULL);
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(mynet_n750_leds_gpio),
+				 mynet_n750_leds_gpio);
+	ath79_register_gpio_keys_polled(-1, MYNET_N750_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(mynet_n750_gpio_keys),
+					mynet_n750_gpio_keys);
+	/*
+	 * Control signal for external LNAs 0 and 1
+	 * Taken from GPL bootloader source:
+	 *   board/ar7240/db12x/alpha_gpio.c
+	 */
+	gpio_request_one(MYNET_N750_GPIO_EXTERNAL_LNA0,
+			 GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED,
+			 "External LNA0");
+	gpio_request_one(MYNET_N750_GPIO_EXTERNAL_LNA1,
+			 GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED,
+			 "External LNA1");
+
+	mynet_n750_get_mac("wlan24mac=", tmpmac);
+	ath79_register_wmac(art + MYNET_N750_WMAC_CALDATA_OFFSET, tmpmac);
+
+	mynet_n750_get_mac("wlan5mac=", tmpmac);
+	ap91_pci_init(art + MYNET_N750_PCIE_CALDATA_OFFSET, tmpmac);
+
+	ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0);
+
+	mdiobus_register_board_info(mynet_n750_mdio0_info,
+				    ARRAY_SIZE(mynet_n750_mdio0_info));
+
+	ath79_register_mdio(0, 0x0);
+
+	mynet_n750_get_mac("lanmac=", ath79_eth0_data.mac_addr);
+
+	/* GMAC0 is connected to an AR8327N switch */
+	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
+	ath79_eth0_data.phy_mask = BIT(0);
+	ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
+	ath79_eth0_pll_data.pll_1000 = 0x06000000;
+	ath79_register_eth(0);
+
+	ath79_register_usb();
+}
+
+MIPS_MACHINE(ATH79_MACH_MYNET_N750, "MYNET-N750", "WD My Net N750",
+	     mynet_n750_setup);