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kernel/linux-imx6_3.14.28/arch/mips/ath79/mach-ubnt-xm.c 2.84 KB
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  /*
   *  Ubiquiti Networks XM (rev 1.0) board support
   *
   *  Copyright (C) 2011 René Bolldorf <xsecute@googlemail.com>
   *
   *  Derived from: mach-pb44.c
   *
   *  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/init.h>
  #include <linux/pci.h>
  #include <linux/ath9k_platform.h>
  
  #include <asm/mach-ath79/irq.h>
  
  #include "machtypes.h"
  #include "dev-gpio-buttons.h"
  #include "dev-leds-gpio.h"
  #include "dev-spi.h"
  #include "pci.h"
  
  #define UBNT_XM_GPIO_LED_L1		0
  #define UBNT_XM_GPIO_LED_L2		1
  #define UBNT_XM_GPIO_LED_L3		11
  #define UBNT_XM_GPIO_LED_L4		7
  
  #define UBNT_XM_GPIO_BTN_RESET		12
  
  #define UBNT_XM_KEYS_POLL_INTERVAL	20
  #define UBNT_XM_KEYS_DEBOUNCE_INTERVAL	(3 * UBNT_XM_KEYS_POLL_INTERVAL)
  
  #define UBNT_XM_EEPROM_ADDR		(u8 *) KSEG1ADDR(0x1fff1000)
  
  static struct gpio_led ubnt_xm_leds_gpio[] __initdata = {
  	{
  		.name		= "ubnt-xm:red:link1",
  		.gpio		= UBNT_XM_GPIO_LED_L1,
  		.active_low	= 0,
  	}, {
  		.name		= "ubnt-xm:orange:link2",
  		.gpio		= UBNT_XM_GPIO_LED_L2,
  		.active_low	= 0,
  	}, {
  		.name		= "ubnt-xm:green:link3",
  		.gpio		= UBNT_XM_GPIO_LED_L3,
  		.active_low	= 0,
  	}, {
  		.name		= "ubnt-xm:green:link4",
  		.gpio		= UBNT_XM_GPIO_LED_L4,
  		.active_low	= 0,
  	},
  };
  
  static struct gpio_keys_button ubnt_xm_gpio_keys[] __initdata = {
  	{
  		.desc			= "reset",
  		.type			= EV_KEY,
  		.code			= KEY_RESTART,
  		.debounce_interval	= UBNT_XM_KEYS_DEBOUNCE_INTERVAL,
  		.gpio			= UBNT_XM_GPIO_BTN_RESET,
  		.active_low		= 1,
  	}
  };
  
  static struct spi_board_info ubnt_xm_spi_info[] = {
  	{
  		.bus_num	= 0,
  		.chip_select	= 0,
  		.max_speed_hz	= 25000000,
  		.modalias	= "mx25l6405d",
  	}
  };
  
  static struct ath79_spi_platform_data ubnt_xm_spi_data = {
  	.bus_num		= 0,
  	.num_chipselect		= 1,
  };
  
  #ifdef CONFIG_PCI
  static struct ath9k_platform_data ubnt_xm_eeprom_data;
  
  static int ubnt_xm_pci_plat_dev_init(struct pci_dev *dev)
  {
  	switch (PCI_SLOT(dev->devfn)) {
  	case 0:
  		dev->dev.platform_data = &ubnt_xm_eeprom_data;
  		break;
  	}
  
  	return 0;
  }
  
  static void __init ubnt_xm_pci_init(void)
  {
  	memcpy(ubnt_xm_eeprom_data.eeprom_data, UBNT_XM_EEPROM_ADDR,
  	       sizeof(ubnt_xm_eeprom_data.eeprom_data));
  
  	ath79_pci_set_plat_dev_init(ubnt_xm_pci_plat_dev_init);
  	ath79_register_pci();
  }
  #else
  static inline void ubnt_xm_pci_init(void) {}
  #endif /* CONFIG_PCI */
  
  static void __init ubnt_xm_init(void)
  {
  	ath79_register_leds_gpio(-1, ARRAY_SIZE(ubnt_xm_leds_gpio),
  				 ubnt_xm_leds_gpio);
  
  	ath79_register_gpio_keys_polled(-1, UBNT_XM_KEYS_POLL_INTERVAL,
  					ARRAY_SIZE(ubnt_xm_gpio_keys),
  					ubnt_xm_gpio_keys);
  
  	ath79_register_spi(&ubnt_xm_spi_data, ubnt_xm_spi_info,
  			   ARRAY_SIZE(ubnt_xm_spi_info));
  
  	ubnt_xm_pci_init();
  }
  
  MIPS_MACHINE(ATH79_MACH_UBNT_XM,
  	     "UBNT-XM",
  	     "Ubiquiti Networks XM (rev 1.0) board",
  	     ubnt_xm_init);