cm-x300.c

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/*
 * linux/arch/arm/mach-pxa/cm-x300.c
 *
 * Support for the CompuLab CM-X300 modules
 *
 * Copyright (C) 2008,2009 CompuLab Ltd.
 *
 * Mike Rapoport <[email protected]>
 * Igor Grinberg <[email protected]>
 *
 * 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.
 */
#define pr_fmt(fmt) "%s: " fmt, __func__

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/clk.h>

#include <linux/gpio.h>
#include <linux/dm9000.h>
#include <linux/leds.h>
#include <linux/rtc-v3020.h>
#include <linux/pwm_backlight.h>

#include <linux/i2c.h>
#include <linux/i2c/pca953x.h>
#include <linux/i2c/pxa-i2c.h>

#include <linux/mfd/da903x.h>
#include <linux/regulator/machine.h>
#include <linux/power_supply.h>
#include <linux/apm-emulation.h>

#include <linux/spi/spi.h>
#include <linux/spi/spi_gpio.h>
#include <linux/spi/tdo24m.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/setup.h>
#include <asm/system_info.h>

#include <mach/pxa300.h>
#include <mach/pxa27x-udc.h>
#include <linux/platform_data/video-pxafb.h>
#include <linux/platform_data/mmc-pxamci.h>
#include <linux/platform_data/usb-ohci-pxa27x.h>
#include <linux/platform_data/mtd-nand-pxa3xx.h>
#include <mach/audio.h>
#include <linux/platform_data/usb-pxa3xx-ulpi.h>

#include <asm/mach/map.h>

#include "generic.h"
#include "devices.h"

#define CM_X300_ETH_PHYS    0x08000010

#define GPIO82_MMC_IRQ      (82)
#define GPIO85_MMC_WP       (85)

#define CM_X300_MMC_IRQ     PXA_GPIO_TO_IRQ(GPIO82_MMC_IRQ)

#define GPIO95_RTC_CS       (95)
#define GPIO96_RTC_WR       (96)
#define GPIO97_RTC_RD       (97)
#define GPIO98_RTC_IO       (98)

#define GPIO_ULPI_PHY_RST   (127)

static mfp_cfg_t cm_x3xx_mfp_cfg[] __initdata = {
    /* LCD */
    GPIO54_LCD_LDD_0,
    GPIO55_LCD_LDD_1,
    GPIO56_LCD_LDD_2,
    GPIO57_LCD_LDD_3,
    GPIO58_LCD_LDD_4,
    GPIO59_LCD_LDD_5,
    GPIO60_LCD_LDD_6,
    GPIO61_LCD_LDD_7,
    GPIO62_LCD_LDD_8,
    GPIO63_LCD_LDD_9,
    GPIO64_LCD_LDD_10,
    GPIO65_LCD_LDD_11,
    GPIO66_LCD_LDD_12,
    GPIO67_LCD_LDD_13,
    GPIO68_LCD_LDD_14,
    GPIO69_LCD_LDD_15,
    GPIO72_LCD_FCLK,
    GPIO73_LCD_LCLK,
    GPIO74_LCD_PCLK,
    GPIO75_LCD_BIAS,

    /* BTUART */
    GPIO111_UART2_RTS,
    GPIO112_UART2_RXD | MFP_LPM_EDGE_FALL,
    GPIO113_UART2_TXD,
    GPIO114_UART2_CTS | MFP_LPM_EDGE_BOTH,

    /* STUART */
    GPIO109_UART3_TXD,
    GPIO110_UART3_RXD | MFP_LPM_EDGE_FALL,

    /* AC97 */
    GPIO23_AC97_nACRESET,
    GPIO24_AC97_SYSCLK,
    GPIO29_AC97_BITCLK,
    GPIO25_AC97_SDATA_IN_0,
    GPIO27_AC97_SDATA_OUT,
    GPIO28_AC97_SYNC,

    /* Keypad */
    GPIO115_KP_MKIN_0 | MFP_LPM_EDGE_BOTH,
    GPIO116_KP_MKIN_1 | MFP_LPM_EDGE_BOTH,
    GPIO117_KP_MKIN_2 | MFP_LPM_EDGE_BOTH,
    GPIO118_KP_MKIN_3 | MFP_LPM_EDGE_BOTH,
    GPIO119_KP_MKIN_4 | MFP_LPM_EDGE_BOTH,
    GPIO120_KP_MKIN_5 | MFP_LPM_EDGE_BOTH,
    GPIO2_2_KP_MKIN_6 | MFP_LPM_EDGE_BOTH,
    GPIO3_2_KP_MKIN_7 | MFP_LPM_EDGE_BOTH,
    GPIO121_KP_MKOUT_0,
    GPIO122_KP_MKOUT_1,
    GPIO123_KP_MKOUT_2,
    GPIO124_KP_MKOUT_3,
    GPIO125_KP_MKOUT_4,
    GPIO4_2_KP_MKOUT_5,

    /* MMC1 */
    GPIO3_MMC1_DAT0,
    GPIO4_MMC1_DAT1 | MFP_LPM_EDGE_BOTH,
    GPIO5_MMC1_DAT2,
    GPIO6_MMC1_DAT3,
    GPIO7_MMC1_CLK,
    GPIO8_MMC1_CMD, /* CMD0 for slot 0 */

    /* MMC2 */
    GPIO9_MMC2_DAT0,
    GPIO10_MMC2_DAT1 | MFP_LPM_EDGE_BOTH,
    GPIO11_MMC2_DAT2,
    GPIO12_MMC2_DAT3,
    GPIO13_MMC2_CLK,
    GPIO14_MMC2_CMD,

    /* FFUART */
    GPIO30_UART1_RXD | MFP_LPM_EDGE_FALL,
    GPIO31_UART1_TXD,
    GPIO32_UART1_CTS,
    GPIO37_UART1_RTS,
    GPIO33_UART1_DCD,
    GPIO34_UART1_DSR | MFP_LPM_EDGE_FALL,
    GPIO35_UART1_RI,
    GPIO36_UART1_DTR,

    /* GPIOs */
    GPIO82_GPIO | MFP_PULL_HIGH,    /* MMC CD */
    GPIO85_GPIO,            /* MMC WP */
    GPIO99_GPIO,            /* Ethernet IRQ */

    /* RTC GPIOs */
    GPIO95_GPIO | MFP_LPM_DRIVE_HIGH,   /* RTC CS */
    GPIO96_GPIO | MFP_LPM_DRIVE_HIGH,   /* RTC WR */
    GPIO97_GPIO | MFP_LPM_DRIVE_HIGH,   /* RTC RD */
    GPIO98_GPIO,                /* RTC IO */

    /* Standard I2C */
    GPIO21_I2C_SCL,
    GPIO22_I2C_SDA,

    /* PWM Backlight */
    GPIO19_PWM2_OUT,
};

static mfp_cfg_t cm_x3xx_rev_lt130_mfp_cfg[] __initdata = {
    /* GPIOs */
    GPIO79_GPIO,            /* LED */
    GPIO77_GPIO,            /* WiFi reset */
    GPIO78_GPIO,            /* BT reset */
};

static mfp_cfg_t cm_x3xx_rev_ge130_mfp_cfg[] __initdata = {
    /* GPIOs */
    GPIO76_GPIO,            /* LED */
    GPIO71_GPIO,            /* WiFi reset */
    GPIO70_GPIO,            /* BT reset */
};

static mfp_cfg_t cm_x310_mfp_cfg[] __initdata = {
    /* USB PORT 2 */
    ULPI_STP,
    ULPI_NXT,
    ULPI_DIR,
    GPIO30_ULPI_DATA_OUT_0,
    GPIO31_ULPI_DATA_OUT_1,
    GPIO32_ULPI_DATA_OUT_2,
    GPIO33_ULPI_DATA_OUT_3,
    GPIO34_ULPI_DATA_OUT_4,
    GPIO35_ULPI_DATA_OUT_5,
    GPIO36_ULPI_DATA_OUT_6,
    GPIO37_ULPI_DATA_OUT_7,
    GPIO38_ULPI_CLK,
    /* external PHY reset pin */
    GPIO127_GPIO,

    /* USB PORT 3 */
    GPIO77_USB_P3_1,
    GPIO78_USB_P3_2,
    GPIO79_USB_P3_3,
    GPIO80_USB_P3_4,
    GPIO81_USB_P3_5,
    GPIO82_USB_P3_6,
    GPIO0_2_USBH_PEN,
};

#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
static struct resource dm9000_resources[] = {
    [0] = {
        .start  = CM_X300_ETH_PHYS,
        .end    = CM_X300_ETH_PHYS + 0x3,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = CM_X300_ETH_PHYS + 0x4,
        .end    = CM_X300_ETH_PHYS + 0x4 + 500,
        .flags  = IORESOURCE_MEM,
    },
    [2] = {
        .start  = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO99)),
        .end    = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO99)),
        .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
    }
};

static struct dm9000_plat_data cm_x300_dm9000_platdata = {
    .flags      = DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM,
};

static struct platform_device dm9000_device = {
    .name       = "dm9000",
    .id     = 0,
    .num_resources  = ARRAY_SIZE(dm9000_resources),
    .resource   = dm9000_resources,
    .dev        = {
        .platform_data = &cm_x300_dm9000_platdata,
    }

};

static void __init cm_x300_init_dm9000(void)
{
    platform_device_register(&dm9000_device);
}
#else
static inline void cm_x300_init_dm9000(void) {}
#endif

/* LCD */
#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
static struct pxafb_mode_info cm_x300_lcd_modes[] = {
    [0] = {
        .pixclock   = 38250,
        .bpp        = 16,
        .xres       = 480,
        .yres       = 640,
        .hsync_len  = 8,
        .vsync_len  = 2,
        .left_margin    = 8,
        .upper_margin   = 2,
        .right_margin   = 24,
        .lower_margin   = 4,
        .cmap_greyscale = 0,
    },
    [1] = {
        .pixclock   = 153800,
        .bpp        = 16,
        .xres       = 240,
        .yres       = 320,
        .hsync_len  = 8,
        .vsync_len  = 2,
        .left_margin    = 8,
        .upper_margin   = 2,
        .right_margin   = 88,
        .lower_margin   = 2,
        .cmap_greyscale = 0,
    },
};

static struct pxafb_mach_info cm_x300_lcd = {
    .modes          = cm_x300_lcd_modes,
    .num_modes      = ARRAY_SIZE(cm_x300_lcd_modes),
    .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
};

static void __init cm_x300_init_lcd(void)
{
    pxa_set_fb_info(NULL, &cm_x300_lcd);
}
#else
static inline void cm_x300_init_lcd(void) {}
#endif

#if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
static struct platform_pwm_backlight_data cm_x300_backlight_data = {
    .pwm_id     = 2,
    .max_brightness = 100,
    .dft_brightness = 100,
    .pwm_period_ns  = 10000,
};

static struct platform_device cm_x300_backlight_device = {
    .name       = "pwm-backlight",
    .dev        = {
        .parent = &pxa27x_device_pwm0.dev,
        .platform_data  = &cm_x300_backlight_data,
    },
};

static void cm_x300_init_bl(void)
{
    platform_device_register(&cm_x300_backlight_device);
}
#else
static inline void cm_x300_init_bl(void) {}
#endif

#if defined(CONFIG_SPI_GPIO) || defined(CONFIG_SPI_GPIO_MODULE)
#define GPIO_LCD_BASE   (144)
#define GPIO_LCD_DIN    (GPIO_LCD_BASE + 8) /* aux_gpio3_0 */
#define GPIO_LCD_DOUT   (GPIO_LCD_BASE + 9) /* aux_gpio3_1 */
#define GPIO_LCD_SCL    (GPIO_LCD_BASE + 10)    /* aux_gpio3_2 */
#define GPIO_LCD_CS (GPIO_LCD_BASE + 11)    /* aux_gpio3_3 */
#define LCD_SPI_BUS_NUM (1)

static struct spi_gpio_platform_data cm_x300_spi_gpio_pdata = {
    .sck        = GPIO_LCD_SCL,
    .mosi       = GPIO_LCD_DIN,
    .miso       = GPIO_LCD_DOUT,
    .num_chipselect = 1,
};

static struct platform_device cm_x300_spi_gpio = {
    .name       = "spi_gpio",
    .id     = LCD_SPI_BUS_NUM,
    .dev        = {
        .platform_data  = &cm_x300_spi_gpio_pdata,
    },
};

static struct tdo24m_platform_data cm_x300_tdo24m_pdata = {
    .model = TDO35S,
};

static struct spi_board_info cm_x300_spi_devices[] __initdata = {
    {
        .modalias       = "tdo24m",
        .max_speed_hz       = 1000000,
        .bus_num        = LCD_SPI_BUS_NUM,
        .chip_select        = 0,
        .controller_data    = (void *) GPIO_LCD_CS,
        .platform_data      = &cm_x300_tdo24m_pdata,
    },
};

static void __init cm_x300_init_spi(void)
{
    spi_register_board_info(cm_x300_spi_devices,
                ARRAY_SIZE(cm_x300_spi_devices));
    platform_device_register(&cm_x300_spi_gpio);
}
#else
static inline void cm_x300_init_spi(void) {}
#endif

#if defined(CONFIG_SND_PXA2XX_LIB_AC97)
static void __init cm_x300_init_ac97(void)
{
    pxa_set_ac97_info(NULL);
}
#else
static inline void cm_x300_init_ac97(void) {}
#endif

#if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
static struct mtd_partition cm_x300_nand_partitions[] = {
    [0] = {
        .name        = "OBM",
        .offset      = 0,
        .size        = SZ_256K,
        .mask_flags  = MTD_WRITEABLE, /* force read-only */
    },
    [1] = {
        .name        = "U-Boot",
        .offset      = MTDPART_OFS_APPEND,
        .size        = SZ_256K,
        .mask_flags  = MTD_WRITEABLE, /* force read-only */
    },
    [2] = {
        .name        = "Environment",
        .offset      = MTDPART_OFS_APPEND,
        .size        = SZ_256K,
    },
    [3] = {
        .name        = "reserved",
        .offset      = MTDPART_OFS_APPEND,
        .size        = SZ_256K + SZ_1M,
        .mask_flags  = MTD_WRITEABLE, /* force read-only */
    },
    [4] = {
        .name        = "kernel",
        .offset      = MTDPART_OFS_APPEND,
        .size        = SZ_4M,
    },
    [5] = {
        .name        = "fs",
        .offset      = MTDPART_OFS_APPEND,
        .size        = MTDPART_SIZ_FULL,
    },
};

static struct pxa3xx_nand_platform_data cm_x300_nand_info = {
    .enable_arbiter = 1,
    .keep_config    = 1,
    .num_cs     = 1,
    .parts[0]   = cm_x300_nand_partitions,
    .nr_parts[0]    = ARRAY_SIZE(cm_x300_nand_partitions),
};

static void __init cm_x300_init_nand(void)
{
    pxa3xx_set_nand_info(&cm_x300_nand_info);
}
#else
static inline void cm_x300_init_nand(void) {}
#endif

#if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
static struct pxamci_platform_data cm_x300_mci_platform_data = {
    .detect_delay_ms    = 200,
    .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
    .gpio_card_detect   = GPIO82_MMC_IRQ,
    .gpio_card_ro       = GPIO85_MMC_WP,
    .gpio_power     = -1,
};

/* The second MMC slot of CM-X300 is hardwired to Libertas card and has
   no detection/ro pins */
static int cm_x300_mci2_init(struct device *dev,
                 irq_handler_t cm_x300_detect_int,
    void *data)
{
    return 0;
}

static void cm_x300_mci2_exit(struct device *dev, void *data)
{
}

static struct pxamci_platform_data cm_x300_mci2_platform_data = {
    .detect_delay_ms    = 200,
    .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
    .init           = cm_x300_mci2_init,
    .exit           = cm_x300_mci2_exit,
    .gpio_card_detect   = -1,
    .gpio_card_ro       = -1,
    .gpio_power     = -1,
};

static void __init cm_x300_init_mmc(void)
{
    pxa_set_mci_info(&cm_x300_mci_platform_data);
    pxa3xx_set_mci2_info(&cm_x300_mci2_platform_data);
}
#else
static inline void cm_x300_init_mmc(void) {}
#endif

#if defined(CONFIG_PXA310_ULPI)
static struct clk *pout_clk;

static int cm_x300_ulpi_phy_reset(void)
{
    int err;

    /* reset the PHY */
    err = gpio_request_one(GPIO_ULPI_PHY_RST, GPIOF_OUT_INIT_LOW,
                   "ulpi reset");
    if (err) {
        pr_err("failed to request ULPI reset GPIO: %d\n", err);
        return err;
    }

    msleep(10);
    gpio_set_value(GPIO_ULPI_PHY_RST, 1);
    msleep(10);

    gpio_free(GPIO_ULPI_PHY_RST);

    return 0;
}

static inline int cm_x300_u2d_init(struct device *dev)
{
    int err = 0;

    if (cpu_is_pxa310()) {
        /* CLK_POUT is connected to the ULPI PHY */
        pout_clk = clk_get(NULL, "CLK_POUT");
        if (IS_ERR(pout_clk)) {
            err = PTR_ERR(pout_clk);
            pr_err("failed to get CLK_POUT: %d\n", err);
            return err;
        }
        clk_enable(pout_clk);

        err = cm_x300_ulpi_phy_reset();
        if (err) {
            clk_disable(pout_clk);
            clk_put(pout_clk);
        }
    }

    return err;
}

static void cm_x300_u2d_exit(struct device *dev)
{
    if (cpu_is_pxa310()) {
        clk_disable(pout_clk);
        clk_put(pout_clk);
    }
}

static struct pxa3xx_u2d_platform_data cm_x300_u2d_platform_data = {
    .ulpi_mode  = ULPI_SER_6PIN,
    .init       = cm_x300_u2d_init,
    .exit       = cm_x300_u2d_exit,
};

static void cm_x300_init_u2d(void)
{
    pxa3xx_set_u2d_info(&cm_x300_u2d_platform_data);
}
#else
static inline void cm_x300_init_u2d(void) {}
#endif

#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
static int cm_x300_ohci_init(struct device *dev)
{
    if (cpu_is_pxa300())
        UP2OCR = UP2OCR_HXS
            | UP2OCR_HXOE | UP2OCR_DMPDE | UP2OCR_DPPDE;

    return 0;
}

static struct pxaohci_platform_data cm_x300_ohci_platform_data = {
    .port_mode  = PMM_PERPORT_MODE,
    .flags      = ENABLE_PORT_ALL | POWER_CONTROL_LOW,
    .init       = cm_x300_ohci_init,
};

static void __init cm_x300_init_ohci(void)
{
    pxa_set_ohci_info(&cm_x300_ohci_platform_data);
}
#else
static inline void cm_x300_init_ohci(void) {}
#endif

#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
static struct gpio_led cm_x300_leds[] = {
    [0] = {
        .name = "cm-x300:green",
        .default_trigger = "heartbeat",
        .active_low = 1,
    },
};

static struct gpio_led_platform_data cm_x300_gpio_led_pdata = {
    .num_leds = ARRAY_SIZE(cm_x300_leds),
    .leds = cm_x300_leds,
};

static struct platform_device cm_x300_led_device = {
    .name       = "leds-gpio",
    .id     = -1,
    .dev        = {
        .platform_data = &cm_x300_gpio_led_pdata,
    },
};

static void __init cm_x300_init_leds(void)
{
    if (system_rev < 130)
        cm_x300_leds[0].gpio = 79;
    else
        cm_x300_leds[0].gpio = 76;

    platform_device_register(&cm_x300_led_device);
}
#else
static inline void cm_x300_init_leds(void) {}
#endif

#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
/* PCA9555 */
static struct pca953x_platform_data cm_x300_gpio_ext_pdata_0 = {
    .gpio_base = 128,
};

static struct pca953x_platform_data cm_x300_gpio_ext_pdata_1 = {
    .gpio_base = 144,
};

static struct i2c_board_info cm_x300_gpio_ext_info[] = {
    [0] = {
        I2C_BOARD_INFO("pca9555", 0x24),
        .platform_data = &cm_x300_gpio_ext_pdata_0,
    },
    [1] = {
        I2C_BOARD_INFO("pca9555", 0x25),
        .platform_data = &cm_x300_gpio_ext_pdata_1,
    },
};

static void __init cm_x300_init_i2c(void)
{
    pxa_set_i2c_info(NULL);
    i2c_register_board_info(0, cm_x300_gpio_ext_info,
                ARRAY_SIZE(cm_x300_gpio_ext_info));
}
#else
static inline void cm_x300_init_i2c(void) {}
#endif

#if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
struct v3020_platform_data cm_x300_v3020_pdata = {
    .use_gpio   = 1,
    .gpio_cs    = GPIO95_RTC_CS,
    .gpio_wr    = GPIO96_RTC_WR,
    .gpio_rd    = GPIO97_RTC_RD,
    .gpio_io    = GPIO98_RTC_IO,
};

static struct platform_device cm_x300_rtc_device = {
    .name       = "v3020",
    .id     = -1,
    .dev        = {
        .platform_data = &cm_x300_v3020_pdata,
    }
};

static void __init cm_x300_init_rtc(void)
{
    platform_device_register(&cm_x300_rtc_device);
}
#else
static inline void cm_x300_init_rtc(void) {}
#endif

/* Battery */
struct power_supply_info cm_x300_psy_info = {
    .name = "battery",
    .technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
    .voltage_max_design = 4200000,
    .voltage_min_design = 3000000,
    .use_for_apm = 1,
};

static void cm_x300_battery_low(void)
{
#if defined(CONFIG_APM_EMULATION)
    apm_queue_event(APM_LOW_BATTERY);
#endif
}

static void cm_x300_battery_critical(void)
{
#if defined(CONFIG_APM_EMULATION)
    apm_queue_event(APM_CRITICAL_SUSPEND);
#endif
}

struct da9030_battery_info cm_x300_battery_info = {
    .battery_info = &cm_x300_psy_info,

    .charge_milliamp = 1000,
    .charge_millivolt = 4200,

    .vbat_low = 3600,
    .vbat_crit = 3400,
    .vbat_charge_start = 4100,
    .vbat_charge_stop = 4200,
    .vbat_charge_restart = 4000,

    .vcharge_min = 3200,
    .vcharge_max = 5500,

    .tbat_low = 197,
    .tbat_high = 78,
    .tbat_restart = 100,

    .batmon_interval = 0,

    .battery_low = cm_x300_battery_low,
    .battery_critical = cm_x300_battery_critical,
};

static struct regulator_consumer_supply buck2_consumers[] = {
    REGULATOR_SUPPLY("vcc_core", NULL),
};

static struct regulator_init_data buck2_data = {
    .constraints = {
        .min_uV = 1375000,
        .max_uV = 1375000,
        .state_mem = {
            .enabled = 0,
        },
        .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
        .apply_uV = 1,
    },
    .num_consumer_supplies = ARRAY_SIZE(buck2_consumers),
    .consumer_supplies = buck2_consumers,
};

/* DA9030 */
struct da903x_subdev_info cm_x300_da9030_subdevs[] = {
    {
        .name = "da903x-battery",
        .id = DA9030_ID_BAT,
        .platform_data = &cm_x300_battery_info,
    },
    {
        .name = "da903x-regulator",
        .id = DA9030_ID_BUCK2,
        .platform_data = &buck2_data,
    },
};

static struct da903x_platform_data cm_x300_da9030_info = {
    .num_subdevs = ARRAY_SIZE(cm_x300_da9030_subdevs),
    .subdevs = cm_x300_da9030_subdevs,
};

static struct i2c_board_info cm_x300_pmic_info = {
    I2C_BOARD_INFO("da9030", 0x49),
    .irq = IRQ_WAKEUP0,
    .platform_data = &cm_x300_da9030_info,
};

static struct i2c_pxa_platform_data cm_x300_pwr_i2c_info = {
    .use_pio = 1,
};

static void __init cm_x300_init_da9030(void)
{
    pxa3xx_set_i2c_power_info(&cm_x300_pwr_i2c_info);
    i2c_register_board_info(1, &cm_x300_pmic_info, 1);
    irq_set_irq_wake(IRQ_WAKEUP0, 1);
}

/* wi2wi gpio setting for system_rev >= 130 */
static struct gpio cm_x300_wi2wi_gpios[] __initdata = {
    { 71, GPIOF_OUT_INIT_HIGH, "wlan en" },
    { 70, GPIOF_OUT_INIT_HIGH, "bt reset" },
};

static void __init cm_x300_init_wi2wi(void)
{
    int err;

    if (system_rev < 130) {
        cm_x300_wi2wi_gpios[0].gpio = 77;   /* wlan en */
        cm_x300_wi2wi_gpios[1].gpio = 78;   /* bt reset */
    }

    /* Libertas and CSR reset */
    err = gpio_request_array(ARRAY_AND_SIZE(cm_x300_wi2wi_gpios));
    if (err) {
        pr_err("failed to request wifi/bt gpios: %d\n", err);
        return;
    }

    udelay(10);
    gpio_set_value(cm_x300_wi2wi_gpios[1].gpio, 0);
    udelay(10);
    gpio_set_value(cm_x300_wi2wi_gpios[1].gpio, 1);

    gpio_free_array(ARRAY_AND_SIZE(cm_x300_wi2wi_gpios));
}

/* MFP */
static void __init cm_x300_init_mfp(void)
{
    /* board-processor specific GPIO initialization */
    pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x3xx_mfp_cfg));

    if (system_rev < 130)
        pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x3xx_rev_lt130_mfp_cfg));
    else
        pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x3xx_rev_ge130_mfp_cfg));

    if (cpu_is_pxa310())
        pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x310_mfp_cfg));
}

static void __init cm_x300_init(void)
{
    cm_x300_init_mfp();

    pxa_set_btuart_info(NULL);
    pxa_set_stuart_info(NULL);
    if (cpu_is_pxa300())
        pxa_set_ffuart_info(NULL);

    cm_x300_init_da9030();
    cm_x300_init_dm9000();
    cm_x300_init_lcd();
    cm_x300_init_u2d();
    cm_x300_init_ohci();
    cm_x300_init_mmc();
    cm_x300_init_nand();
    cm_x300_init_leds();
    cm_x300_init_i2c();
    cm_x300_init_spi();
    cm_x300_init_rtc();
    cm_x300_init_ac97();
    cm_x300_init_wi2wi();
    cm_x300_init_bl();
}

static void __init cm_x300_fixup(struct tag *tags, char **cmdline,
                 struct meminfo *mi)
{
    /* Make sure that mi->bank[0].start = PHYS_ADDR */
    for (; tags->hdr.size; tags = tag_next(tags))
        if (tags->hdr.tag == ATAG_MEM &&
            tags->u.mem.start == 0x80000000) {
            tags->u.mem.start = 0xa0000000;
            break;
        }
}

MACHINE_START(CM_X300, "CM-X300 module")
    .atag_offset    = 0x100,
    .map_io     = pxa3xx_map_io,
    .nr_irqs    = PXA_NR_IRQS,
    .init_irq   = pxa3xx_init_irq,
    .handle_irq = pxa3xx_handle_irq,
    .timer      = &pxa_timer,
    .init_machine   = cm_x300_init,
    .fixup      = cm_x300_fixup,
    .restart    = pxa_restart,
MACHINE_END