ar71xx: add kernel support for the My Net Wi-Fi Range Extender device

This patch adds a new device definition for a
Western Digital device. The hardware seems to
be based on Qualcomm Atheros DB120 design.

Patchwork: http://patchwork.openwrt.org/patch/4281/
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
[juhosg: refresh kernel patch]
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 38686

1 files changed, 175 insertions, 0 deletions

diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-mynet-rext.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-mynet-rext.c
new file mode 100644
index 0000000000..d20dbe0a87
--- /dev/null
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-mynet-rext.c
@@ -0,0 +1,175 @@
+/*
+ *  WD My Net WI-FI Range Extender (Codename:Starfish db12x) board support
+ *
+ *  Copyright (C) 2013 Christian Lamparter <chunkeey@googlemail.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/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"
+
+#define MYNET_REXT_GPIO_LED_POWER	11
+#define MYNET_REXT_GPIO_LED_ETHERNET	12
+#define MYNET_REXT_GPIO_LED_WIFI	19
+
+#define MYNET_REXT_GPIO_LED_RF_QTY1	20
+#define MYNET_REXT_GPIO_LED_RF_QTY2	21
+#define MYNET_REXT_GPIO_LED_RF_QTY3	22
+
+#define MYNET_REXT_GPIO_BTN_RESET	13
+#define MYNET_REXT_GPIO_BTN_WPS		15
+#define MYNET_REXT_GPIO_SW_RF		14
+
+#define MYNET_REXT_GPIO_PHY_SWRST	16	/* disables Ethernet PHY */
+#define MYNET_REXT_GPIO_PHY_INT		17
+#define MYNET_REXT_GPIO_18		18
+
+#define MYNET_REXT_KEYS_POLL_INTERVAL	20	/* msecs */
+#define MYNET_REXT_KEYS_DEBOUNCE_INTERVAL (3 * MYNET_REXT_KEYS_POLL_INTERVAL)
+
+#define MYNET_REXT_WMAC_CALDATA_OFFSET	0x1000
+
+#define MYNET_REXT_NVRAM_ADDR		0x1f7e0010
+#define MYNET_REXT_NVRAM_SIZE		0xfff0
+
+#define MYNET_REXT_ART_ADDR		0x1f7f0000
+
+static struct gpio_led mynet_rext_leds_gpio[] __initdata = {
+	{
+		.name		= "wd:blue:power",
+		.gpio		= MYNET_REXT_GPIO_LED_POWER,
+		.active_low	= 0,
+	},
+	{
+		.name		= "wd:blue:wireless",
+		.gpio		= MYNET_REXT_GPIO_LED_WIFI,
+		.active_low	= 1,
+	},
+	{
+		.name		= "wd:blue:ethernet",
+		.gpio		= MYNET_REXT_GPIO_LED_ETHERNET,
+		.active_low	= 1,
+	},
+	{
+		.name		= "wd:blue:quality1",
+		.gpio		= MYNET_REXT_GPIO_LED_RF_QTY1,
+		.active_low	= 1,
+	},
+	{
+		.name		= "wd:blue:quality2",
+		.gpio		= MYNET_REXT_GPIO_LED_RF_QTY2,
+		.active_low	= 1,
+	},
+	{
+		.name		= "wd:blue:quality3",
+		.gpio		= MYNET_REXT_GPIO_LED_RF_QTY3,
+		.active_low	= 1,
+	},
+};
+
+static struct gpio_keys_button mynet_rext_gpio_keys[] __initdata = {
+	{
+		.desc		= "Reset button",
+		.type		= EV_KEY,
+		.code		= KEY_RESTART,
+		.debounce_interval = MYNET_REXT_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= MYNET_REXT_GPIO_BTN_RESET,
+		.active_low	= 1,
+	},
+	{
+		.desc		= "WPS button",
+		.type		= EV_KEY,
+		.code		= KEY_WPS_BUTTON,
+		.debounce_interval = MYNET_REXT_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= MYNET_REXT_GPIO_BTN_WPS,
+		.active_low	= 1,
+	},
+	{
+		.desc           = "RF Band switch",
+		.type           = EV_SW,
+		.code           = BTN_1,
+		.debounce_interval = MYNET_REXT_KEYS_DEBOUNCE_INTERVAL,
+		.gpio           = MYNET_REXT_GPIO_SW_RF,
+	},
+};
+
+static void mynet_rext_get_mac(const char *name, char *mac)
+{
+	u8 *nvram = (u8 *) KSEG1ADDR(MYNET_REXT_NVRAM_ADDR);
+	int err;
+
+	err = ath79_nvram_parse_mac_addr(nvram, MYNET_REXT_NVRAM_SIZE,
+					 name, mac);
+	if (err)
+		pr_err("no MAC address found for %s\n", name);
+}
+
+static void __init mynet_rext_setup(void)
+{
+	u8 *art = (u8 *) KSEG1ADDR(MYNET_REXT_ART_ADDR);
+	u8 tmpmac[ETH_ALEN];
+
+	ath79_register_m25p80(NULL);
+
+	/* GPIO configuration from drivers/char/GPIO8.c */
+
+	ath79_gpio_output_select(MYNET_REXT_GPIO_LED_POWER,
+				 AR934X_GPIO_OUT_GPIO);
+	ath79_gpio_output_select(MYNET_REXT_GPIO_LED_WIFI,
+				 AR934X_GPIO_OUT_GPIO);
+	ath79_gpio_output_select(MYNET_REXT_GPIO_LED_RF_QTY1,
+				 AR934X_GPIO_OUT_GPIO);
+	ath79_gpio_output_select(MYNET_REXT_GPIO_LED_RF_QTY2,
+				 AR934X_GPIO_OUT_GPIO);
+	ath79_gpio_output_select(MYNET_REXT_GPIO_LED_RF_QTY3,
+				 AR934X_GPIO_OUT_GPIO);
+	ath79_gpio_output_select(MYNET_REXT_GPIO_LED_ETHERNET,
+				 AR934X_GPIO_OUT_GPIO);
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(mynet_rext_leds_gpio),
+				 mynet_rext_leds_gpio);
+
+	ath79_register_gpio_keys_polled(-1, MYNET_REXT_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(mynet_rext_gpio_keys),
+					mynet_rext_gpio_keys);
+
+	mynet_rext_get_mac("wl0_hwaddr=", tmpmac);
+	ath79_register_wmac(art + MYNET_REXT_WMAC_CALDATA_OFFSET, tmpmac);
+
+	ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0);
+
+	ath79_register_mdio(0, 0x0);
+
+	/* LAN */
+	mynet_rext_get_mac("et0macaddr=", ath79_eth0_data.mac_addr);
+
+	/* GMAC0 is connected to an external PHY on Port 4 */
+	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
+	ath79_eth0_data.phy_mask = BIT(4);
+	ath79_eth0_pll_data.pll_1000 = 0x0e000000; /* athrs_mac.c */
+	ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
+	ath79_register_eth(0);
+}
+
+MIPS_MACHINE(ATH79_MACH_MYNET_REXT, "MYNET-REXT",
+	     "WD My Net Wi-Fi Range Extender", mynet_rext_setup);