mach-ubnt-xm.c

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/*
 *  Ubiquiti Networks XM (rev 1.0) board support
 *
 *  Copyright (C) 2011 René Bolldorf <[email protected]>
 *
 *  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);