kernel/arch/mips/ath79/mach-ubnt-xm.c

   1 /*
   2  *  Ubiquiti Networks XM (rev 1.0) board support
   3  *
   4  *  Copyright (C) 2011 René Bolldorf <xsecute@googlemail.com>
   5  *
   6  *  Derived from: mach-pb44.c
   7  *
   8  *  This program is free software; you can redistribute it and/or modify it
   9  *  under the terms of the GNU General Public License version 2 as published
  10  *  by the Free Software Foundation.
  11  */
  12
  13 #include <linux/init.h>
  14 #include <linux/pci.h>
  15 #include <linux/ath9k_platform.h>
  16
  17 #include <asm/mach-ath79/irq.h>
  18
  19 #include "machtypes.h"
  20 #include "dev-gpio-buttons.h"
  21 #include "dev-leds-gpio.h"
  22 #include "dev-spi.h"
  23 #include "pci.h"
  24
  25 #define UBNT_XM_GPIO_LED_L1             0
  26 #define UBNT_XM_GPIO_LED_L2             1
  27 #define UBNT_XM_GPIO_LED_L3             11
  28 #define UBNT_XM_GPIO_LED_L4             7
  29
  30 #define UBNT_XM_GPIO_BTN_RESET          12
  31
  32 #define UBNT_XM_KEYS_POLL_INTERVAL      20
  33 #define UBNT_XM_KEYS_DEBOUNCE_INTERVAL  (3 * UBNT_XM_KEYS_POLL_INTERVAL)
  34
  35 #define UBNT_XM_EEPROM_ADDR             (u8 *) KSEG1ADDR(0x1fff1000)
  36
  37 static struct gpio_led ubnt_xm_leds_gpio[] __initdata = {
  38         {
  39                 .name           = "ubnt-xm:red:link1",
  40                 .gpio           = UBNT_XM_GPIO_LED_L1,
  41                 .active_low     = 0,
  42         }, {
  43                 .name           = "ubnt-xm:orange:link2",
  44                 .gpio           = UBNT_XM_GPIO_LED_L2,
  45                 .active_low     = 0,
  46         }, {
  47                 .name           = "ubnt-xm:green:link3",
  48                 .gpio           = UBNT_XM_GPIO_LED_L3,
  49                 .active_low     = 0,
  50         }, {
  51                 .name           = "ubnt-xm:green:link4",
  52                 .gpio           = UBNT_XM_GPIO_LED_L4,
  53                 .active_low     = 0,
  54         },
  55 };
  56
  57 static struct gpio_keys_button ubnt_xm_gpio_keys[] __initdata = {
  58         {
  59                 .desc                   = "reset",
  60                 .type                   = EV_KEY,
  61                 .code                   = KEY_RESTART,
  62                 .debounce_interval      = UBNT_XM_KEYS_DEBOUNCE_INTERVAL,
  63                 .gpio                   = UBNT_XM_GPIO_BTN_RESET,
  64                 .active_low             = 1,
  65         }
  66 };
  67
  68 static struct spi_board_info ubnt_xm_spi_info[] = {
  69         {
  70                 .bus_num        = 0,
  71                 .chip_select    = 0,
  72                 .max_speed_hz   = 25000000,
  73                 .modalias       = "mx25l6405d",
  74         }
  75 };
  76
  77 static struct ath79_spi_platform_data ubnt_xm_spi_data = {
  78         .bus_num                = 0,
  79         .num_chipselect         = 1,
  80 };
  81
  82 #ifdef CONFIG_PCI
  83 static struct ath9k_platform_data ubnt_xm_eeprom_data;
  84
  85 static int ubnt_xm_pci_plat_dev_init(struct pci_dev *dev)
  86 {
  87         switch (PCI_SLOT(dev->devfn)) {
  88         case 0:
  89                 dev->dev.platform_data = &ubnt_xm_eeprom_data;
  90                 break;
  91         }
  92
  93         return 0;
  94 }
  95
  96 static void __init ubnt_xm_pci_init(void)
  97 {
  98         memcpy(ubnt_xm_eeprom_data.eeprom_data, UBNT_XM_EEPROM_ADDR,
  99                sizeof(ubnt_xm_eeprom_data.eeprom_data));
 100
 101         ath79_pci_set_plat_dev_init(ubnt_xm_pci_plat_dev_init);
 102         ath79_register_pci();
 103 }
 104 #else
 105 static inline void ubnt_xm_pci_init(void) {}
 106 #endif /* CONFIG_PCI */
 107
 108 static void __init ubnt_xm_init(void)
 109 {
 110         ath79_register_leds_gpio(-1, ARRAY_SIZE(ubnt_xm_leds_gpio),
 111                                  ubnt_xm_leds_gpio);
 112
 113         ath79_register_gpio_keys_polled(-1, UBNT_XM_KEYS_POLL_INTERVAL,
 114                                         ARRAY_SIZE(ubnt_xm_gpio_keys),
 115                                         ubnt_xm_gpio_keys);
 116
 117         ath79_register_spi(&ubnt_xm_spi_data, ubnt_xm_spi_info,
 118                            ARRAY_SIZE(ubnt_xm_spi_info));
 119
 120         ubnt_xm_pci_init();
 121 }
 122
 123 MIPS_MACHINE(ATH79_MACH_UBNT_XM,
 124              "UBNT-XM",
 125              "Ubiquiti Networks XM (rev 1.0) board",
 126              ubnt_xm_init);