Logo Search packages:      
Sourcecode: linux version File versions  Download package

cm-x300.c

/*
 * linux/arch/arm/mach-pxa/cm-x300.c
 *
 * Support for the CompuLab CM-X300 modules
 *
 * Copyright (C) 2008,2009 CompuLab Ltd.
 *
 * Mike Rapoport <mike@compulab.co.il>
 * Igor Grinberg <grinberg@compulab.co.il>
 *
 * 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/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/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 <mach/pxa300.h>
#include <mach/pxa27x-udc.h>
#include <mach/pxafb.h>
#include <mach/mmc.h>
#include <mach/ohci.h>
#include <plat/i2c.h>
#include <plat/pxa3xx_nand.h>
#include <mach/audio.h>
#include <mach/pxa3xx-u2d.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         IRQ_GPIO(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,                  /* RTC CS */
      GPIO96_GPIO,                  /* RTC WR */
      GPIO97_GPIO,                  /* 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      = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
            .end  = IRQ_GPIO(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)
{
      set_pxa_fb_info(&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,
      .parts            = cm_x300_nand_partitions,
      .nr_parts   = 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(GPIO_ULPI_PHY_RST, "ulpi reset");
      if (err) {
            pr_err("%s: failed to request ULPI reset GPIO: %d\n",
                   __func__, err);
            return err;
      }

      gpio_direction_output(GPIO_ULPI_PHY_RST, 0);
      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("%s: failed to get CLK_POUT: %d\n",
                         __func__, 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[] = {
      {
            .dev = NULL,
            .supply = "vcc_core",
      },
};

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);
      set_irq_wake(IRQ_WAKEUP0, 1);
}

static void __init cm_x300_init_wi2wi(void)
{
      int bt_reset, wlan_en;
      int err;

      if (system_rev < 130) {
            wlan_en = 77;
            bt_reset = 78;
      } else {
            wlan_en = 71;
            bt_reset = 70;
      }

      /* Libertas and CSR reset */
      err = gpio_request(wlan_en, "wlan en");
      if (err) {
            pr_err("CM-X300: failed to request wlan en gpio: %d\n", err);
      } else {
            gpio_direction_output(wlan_en, 1);
            gpio_free(wlan_en);
      }

      err = gpio_request(bt_reset, "bt reset");
      if (err) {
            pr_err("CM-X300: failed to request bt reset gpio: %d\n", err);
      } else {
            gpio_direction_output(bt_reset, 1);
            udelay(10);
            gpio_set_value(bt_reset, 0);
            udelay(10);
            gpio_set_value(bt_reset, 1);
            gpio_free(bt_reset);
      }
}

/* 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 machine_desc *mdesc, 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")
      .boot_params      = 0xa0000100,
      .map_io           = pxa3xx_map_io,
      .init_irq   = pxa3xx_init_irq,
      .timer            = &pxa_timer,
      .init_machine     = cm_x300_init,
      .fixup            = cm_x300_fixup,
MACHINE_END

Generated by  Doxygen 1.6.0   Back to index