mach-db120.c

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/*
 * Atheros DB120 reference board support
 *
 * Copyright (c) 2011 Qualcomm Atheros
 * Copyright (c) 2011 Gabor Juhos <[email protected]>
 *
 * 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);