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kernel/linux-imx6_3.14.28/arch/mips/ath79/mach-db120.c 3.45 KB
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  /*
   * Atheros DB120 reference board support
   *
   * Copyright (c) 2011 Qualcomm Atheros
   * Copyright (c) 2011 Gabor Juhos <juhosg@openwrt.org>
   *
   * Permission to use, copy, modify, and/or distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
   * copyright notice and this permission notice appear in all copies.
   *
   * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   *
   */
  
  #include <linux/pci.h>
  #include <linux/ath9k_platform.h>
  
  #include "machtypes.h"
  #include "dev-gpio-buttons.h"
  #include "dev-leds-gpio.h"
  #include "dev-spi.h"
  #include "dev-usb.h"
  #include "dev-wmac.h"
  #include "pci.h"
  
  #define DB120_GPIO_LED_WLAN_5G		12
  #define DB120_GPIO_LED_WLAN_2G		13
  #define DB120_GPIO_LED_STATUS		14
  #define DB120_GPIO_LED_WPS		15
  
  #define DB120_GPIO_BTN_WPS		16
  
  #define DB120_KEYS_POLL_INTERVAL	20	/* msecs */
  #define DB120_KEYS_DEBOUNCE_INTERVAL	(3 * DB120_KEYS_POLL_INTERVAL)
  
  #define DB120_WMAC_CALDATA_OFFSET 0x1000
  #define DB120_PCIE_CALDATA_OFFSET 0x5000
  
  static struct gpio_led db120_leds_gpio[] __initdata = {
  	{
  		.name		= "db120:green:status",
  		.gpio		= DB120_GPIO_LED_STATUS,
  		.active_low	= 1,
  	},
  	{
  		.name		= "db120:green:wps",
  		.gpio		= DB120_GPIO_LED_WPS,
  		.active_low	= 1,
  	},
  	{
  		.name		= "db120:green:wlan-5g",
  		.gpio		= DB120_GPIO_LED_WLAN_5G,
  		.active_low	= 1,
  	},
  	{
  		.name		= "db120:green:wlan-2g",
  		.gpio		= DB120_GPIO_LED_WLAN_2G,
  		.active_low	= 1,
  	},
  };
  
  static struct gpio_keys_button db120_gpio_keys[] __initdata = {
  	{
  		.desc		= "WPS button",
  		.type		= EV_KEY,
  		.code		= KEY_WPS_BUTTON,
  		.debounce_interval = DB120_KEYS_DEBOUNCE_INTERVAL,
  		.gpio		= DB120_GPIO_BTN_WPS,
  		.active_low	= 1,
  	},
  };
  
  static struct spi_board_info db120_spi_info[] = {
  	{
  		.bus_num	= 0,
  		.chip_select	= 0,
  		.max_speed_hz	= 25000000,
  		.modalias	= "s25sl064a",
  	}
  };
  
  static struct ath79_spi_platform_data db120_spi_data = {
  	.bus_num	= 0,
  	.num_chipselect = 1,
  };
  
  #ifdef CONFIG_PCI
  static struct ath9k_platform_data db120_ath9k_data;
  
  static int db120_pci_plat_dev_init(struct pci_dev *dev)
  {
  	switch (PCI_SLOT(dev->devfn)) {
  	case 0:
  		dev->dev.platform_data = &db120_ath9k_data;
  		break;
  	}
  
  	return 0;
  }
  
  static void __init db120_pci_init(u8 *eeprom)
  {
  	memcpy(db120_ath9k_data.eeprom_data, eeprom,
  	       sizeof(db120_ath9k_data.eeprom_data));
  
  	ath79_pci_set_plat_dev_init(db120_pci_plat_dev_init);
  	ath79_register_pci();
  }
  #else
  static inline void db120_pci_init(void) {}
  #endif /* CONFIG_PCI */
  
  static void __init db120_setup(void)
  {
  	u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
  
  	ath79_register_leds_gpio(-1, ARRAY_SIZE(db120_leds_gpio),
  				 db120_leds_gpio);
  	ath79_register_gpio_keys_polled(-1, DB120_KEYS_POLL_INTERVAL,
  					ARRAY_SIZE(db120_gpio_keys),
  					db120_gpio_keys);
  	ath79_register_spi(&db120_spi_data, db120_spi_info,
  			   ARRAY_SIZE(db120_spi_info));
  	ath79_register_usb();
  	ath79_register_wmac(art + DB120_WMAC_CALDATA_OFFSET);
  	db120_pci_init(art + DB120_PCIE_CALDATA_OFFSET);
  }
  
  MIPS_MACHINE(ATH79_MACH_DB120, "DB120", "Atheros DB120 reference board",
  	     db120_setup);