stargate2.c

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/*
 *  linux/arch/arm/mach-pxa/stargate2.c
 *
 *  Author: Ed C. Epp
 *  Created:    Nov 05, 2002
 *  Copyright:  Intel Corp.
 *
 *  Modified 2009:  Jonathan Cameron <[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.
 */

#include <linux/init.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/sched.h>
#include <linux/bitops.h>
#include <linux/fb.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/regulator/machine.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/plat-ram.h>
#include <linux/mtd/partitions.h>

#include <linux/i2c/pxa-i2c.h>
#include <linux/i2c/pcf857x.h>
#include <linux/i2c/at24.h>
#include <linux/smc91x.h>
#include <linux/gpio.h>
#include <linux/leds.h>

#include <asm/types.h>
#include <asm/setup.h>
#include <asm/memory.h>
#include <asm/mach-types.h>
#include <asm/irq.h>

#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <asm/mach/flash.h>

#include <mach/pxa27x.h>
#include <linux/platform_data/mmc-pxamci.h>
#include <mach/udc.h>
#include <mach/pxa27x-udc.h>
#include <mach/smemc.h>

#include <linux/spi/spi.h>
#include <linux/spi/pxa2xx_spi.h>
#include <linux/mfd/da903x.h>
#include <linux/platform_data/sht15.h>

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

#define STARGATE_NR_IRQS    (IRQ_BOARD_START + 8)

/* Bluetooth */
#define SG2_BT_RESET        81

/* SD */
#define SG2_GPIO_nSD_DETECT 90
#define SG2_SD_POWER_ENABLE 89

static unsigned long sg2_im2_unified_pin_config[] __initdata = {
    /* Device Identification for wakeup*/
    GPIO102_GPIO,
    /* DA9030 */
    GPIO1_GPIO,

    /* MMC */
    GPIO32_MMC_CLK,
    GPIO112_MMC_CMD,
    GPIO92_MMC_DAT_0,
    GPIO109_MMC_DAT_1,
    GPIO110_MMC_DAT_2,
    GPIO111_MMC_DAT_3,

    /* 802.15.4 radio - driver out of mainline */
    GPIO22_GPIO,            /* CC_RSTN */
    GPIO114_GPIO,           /* CC_FIFO */
    GPIO116_GPIO,           /* CC_CCA */
    GPIO0_GPIO,         /* CC_FIFOP */
    GPIO16_GPIO,            /* CCSFD */
    GPIO115_GPIO,           /* Power enable */

    /* I2C */
    GPIO117_I2C_SCL,
    GPIO118_I2C_SDA,

    /* SSP 3 - 802.15.4 radio */
    GPIO39_GPIO,            /* Chip Select */
    GPIO34_SSP3_SCLK,
    GPIO35_SSP3_TXD,
    GPIO41_SSP3_RXD,

    /* SSP 2 to daughter boards */
    GPIO11_SSP2_RXD,
    GPIO38_SSP2_TXD,
    GPIO36_SSP2_SCLK,
    GPIO37_GPIO, /* chip select */

    /* SSP 1 - to daughter boards */
    GPIO24_GPIO,            /* Chip Select */
    GPIO23_SSP1_SCLK,
    GPIO25_SSP1_TXD,
    GPIO26_SSP1_RXD,

    /* BTUART Basic Connector*/
    GPIO42_BTUART_RXD,
    GPIO43_BTUART_TXD,
    GPIO44_BTUART_CTS,
    GPIO45_BTUART_RTS,

    /* STUART  - IM2 via debug board not sure on SG2*/
    GPIO46_STUART_RXD,
    GPIO47_STUART_TXD,

    /* Basic sensor board */
    GPIO96_GPIO,    /* accelerometer interrupt */
    GPIO99_GPIO,    /* ADC interrupt */

    /* SHT15 */
    GPIO100_GPIO,
    GPIO98_GPIO,

    /* Basic sensor board */
    GPIO96_GPIO,    /* accelerometer interrupt */
    GPIO99_GPIO,    /* ADC interrupt */

    /* Connector pins specified as gpios */
    GPIO94_GPIO, /* large basic connector pin 14 */
    GPIO10_GPIO, /* large basic connector pin 23 */
};

static struct sht15_platform_data platform_data_sht15 = {
    .gpio_data =  100,
    .gpio_sck  =  98,
};

static struct platform_device sht15 = {
    .name = "sht15",
    .id = -1,
    .dev = {
        .platform_data = &platform_data_sht15,
    },
};

static struct regulator_consumer_supply stargate2_sensor_3_con[] = {
    REGULATOR_SUPPLY("vcc", "sht15"),
};

enum stargate2_ldos{
    vcc_vref,
    vcc_cc2420,
    /* a mote connector? */
    vcc_mica,
    /* the CSR bluecore chip */
    vcc_bt,
    /* The two voltages available to sensor boards */
    vcc_sensor_1_8,
    vcc_sensor_3,
    /* directly connected to the pxa27x */
    vcc_sram_ext,
    vcc_pxa_pll,
    vcc_pxa_usim, /* Reference voltage for certain gpios */
    vcc_pxa_mem,
    vcc_pxa_flash,
    vcc_pxa_core, /*Dc-Dc buck not yet supported */
    vcc_lcd,
    vcc_bb,
    vcc_bbio, /*not sure!*/
    vcc_io, /* cc2420 802.15.4 radio and pxa vcc_io ?*/
};

/* The values of the various regulator constraints are obviously dependent
 * on exactly what is wired to each ldo.  Unfortunately this information is
 * not generally available.  More information has been requested from Xbow.
 */
static struct regulator_init_data stargate2_ldo_init_data[] = {
    [vcc_bbio] = {
        .constraints = { /* board default 1.8V */
            .name = "vcc_bbio",
            .min_uV = 1800000,
            .max_uV = 1800000,
        },
    },
    [vcc_bb] = {
        .constraints = { /* board default 2.8V */
            .name = "vcc_bb",
            .min_uV = 2700000,
            .max_uV = 3000000,
        },
    },
    [vcc_pxa_flash] = {
        .constraints = {/* default is 1.8V */
            .name = "vcc_pxa_flash",
            .min_uV = 1800000,
            .max_uV = 1800000,
        },
    },
    [vcc_cc2420] = { /* also vcc_io */
        .constraints = {
            /* board default is 2.8V */
            .name = "vcc_cc2420",
            .min_uV = 2700000,
            .max_uV = 3300000,
        },
    },
    [vcc_vref] = { /* Reference for what? */
        .constraints = { /* default 1.8V */
            .name = "vcc_vref",
            .min_uV = 1800000,
            .max_uV = 1800000,
        },
    },
    [vcc_sram_ext] = {
        .constraints = { /* default 2.8V */
            .name = "vcc_sram_ext",
            .min_uV = 2800000,
            .max_uV = 2800000,
        },
    },
    [vcc_mica] = {
        .constraints = { /* default 2.8V */
            .name = "vcc_mica",
            .min_uV = 2800000,
            .max_uV = 2800000,
        },
    },
    [vcc_bt] = {
        .constraints = { /* default 2.8V */
            .name = "vcc_bt",
            .min_uV = 2800000,
            .max_uV = 2800000,
        },
    },
    [vcc_lcd] = {
        .constraints = { /* default 2.8V */
            .name = "vcc_lcd",
            .min_uV = 2700000,
            .max_uV = 3300000,
        },
    },
    [vcc_io] = { /* Same or higher than everything
              * bar vccbat and vccusb */
        .constraints = { /* default 2.8V */
            .name = "vcc_io",
            .min_uV = 2692000,
            .max_uV = 3300000,
        },
    },
    [vcc_sensor_1_8] = {
        .constraints = { /* default 1.8V */
            .name = "vcc_sensor_1_8",
            .min_uV = 1800000,
            .max_uV = 1800000,
        },
    },
    [vcc_sensor_3] = { /* curiously default 2.8V */
        .constraints = {
            .name = "vcc_sensor_3",
            .min_uV = 2800000,
            .max_uV = 3000000,
        },
        .num_consumer_supplies = ARRAY_SIZE(stargate2_sensor_3_con),
        .consumer_supplies = stargate2_sensor_3_con,
    },
    [vcc_pxa_pll] = { /* 1.17V - 1.43V, default 1.3V*/
        .constraints = {
            .name = "vcc_pxa_pll",
            .min_uV = 1170000,
            .max_uV = 1430000,
        },
    },
    [vcc_pxa_usim] = {
        .constraints = { /* default 1.8V */
            .name = "vcc_pxa_usim",
            .min_uV = 1710000,
            .max_uV = 2160000,
        },
    },
    [vcc_pxa_mem] = {
        .constraints = { /* default 1.8V */
            .name = "vcc_pxa_mem",
            .min_uV = 1800000,
            .max_uV = 1800000,
        },
    },
};

static struct mtd_partition stargate2flash_partitions[] = {
    {
        .name = "Bootloader",
        .size = 0x00040000,
        .offset = 0,
        .mask_flags = 0,
    }, {
        .name = "Kernel",
        .size = 0x00200000,
        .offset = 0x00040000,
        .mask_flags = 0
    }, {
        .name = "Filesystem",
        .size = 0x01DC0000,
        .offset = 0x00240000,
        .mask_flags = 0
    },
};

static struct resource flash_resources = {
    .start = PXA_CS0_PHYS,
    .end = PXA_CS0_PHYS + SZ_32M - 1,
    .flags = IORESOURCE_MEM,
};

static struct flash_platform_data stargate2_flash_data = {
    .map_name = "cfi_probe",
    .parts = stargate2flash_partitions,
    .nr_parts = ARRAY_SIZE(stargate2flash_partitions),
    .name = "PXA27xOnChipROM",
    .width = 2,
};

static struct platform_device stargate2_flash_device = {
    .name = "pxa2xx-flash",
    .id = 0,
    .dev = {
        .platform_data = &stargate2_flash_data,
    },
    .resource = &flash_resources,
    .num_resources = 1,
};

static struct pxa2xx_spi_master pxa_ssp_master_0_info = {
    .num_chipselect = 1,
};

static struct pxa2xx_spi_master pxa_ssp_master_1_info = {
    .num_chipselect = 1,
};

static struct pxa2xx_spi_master pxa_ssp_master_2_info = {
    .num_chipselect = 1,
};

/* An upcoming kernel change will scrap SFRM usage so these
 * drivers have been moved to use gpio's via cs_control */
static struct pxa2xx_spi_chip staccel_chip_info = {
    .tx_threshold = 8,
    .rx_threshold = 8,
    .dma_burst_size = 8,
    .timeout = 235,
    .gpio_cs = 24,
};

static struct pxa2xx_spi_chip cc2420_info = {
    .tx_threshold = 8,
    .rx_threshold = 8,
    .dma_burst_size = 8,
    .timeout = 235,
    .gpio_cs = 39,
};

static struct spi_board_info spi_board_info[] __initdata = {
    {
        .modalias = "lis3l02dq",
        .max_speed_hz = 8000000,/* 8MHz max spi frequency at 3V */
        .bus_num = 1,
        .chip_select = 0,
        .controller_data = &staccel_chip_info,
        .irq = PXA_GPIO_TO_IRQ(96),
    }, {
        .modalias = "cc2420",
        .max_speed_hz = 6500000,
        .bus_num = 3,
        .chip_select = 0,
        .controller_data = &cc2420_info,
    },
};

static void sg2_udc_command(int cmd)
{
    switch (cmd) {
    case PXA2XX_UDC_CMD_CONNECT:
        UP2OCR |=  UP2OCR_HXOE  | UP2OCR_DPPUE | UP2OCR_DPPUBE;
        break;
    case PXA2XX_UDC_CMD_DISCONNECT:
        UP2OCR &= ~(UP2OCR_HXOE  | UP2OCR_DPPUE | UP2OCR_DPPUBE);
        break;
    }
}

static struct i2c_pxa_platform_data i2c_pwr_pdata = {
    .fast_mode = 1,
};

static struct i2c_pxa_platform_data i2c_pdata = {
    .fast_mode = 1,
};

static void __init imote2_stargate2_init(void)
{

    pxa2xx_mfp_config(ARRAY_AND_SIZE(sg2_im2_unified_pin_config));

    pxa_set_ffuart_info(NULL);
    pxa_set_btuart_info(NULL);
    pxa_set_stuart_info(NULL);

    pxa2xx_set_spi_info(1, &pxa_ssp_master_0_info);
    pxa2xx_set_spi_info(2, &pxa_ssp_master_1_info);
    pxa2xx_set_spi_info(3, &pxa_ssp_master_2_info);
    spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));


    pxa27x_set_i2c_power_info(&i2c_pwr_pdata);
    pxa_set_i2c_info(&i2c_pdata);
}

#ifdef CONFIG_MACH_INTELMOTE2
/* As the the imote2 doesn't currently have a conventional SD slot
 * there is no option to hotplug cards, making all this rather simple
 */
static int imote2_mci_get_ro(struct device *dev)
{
    return 0;
}

/* Rather simple case as hotplugging not possible */
static struct pxamci_platform_data imote2_mci_platform_data = {
    .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, /* default anyway */
    .get_ro = imote2_mci_get_ro,
    .gpio_card_detect = -1,
    .gpio_card_ro   = -1,
    .gpio_power = -1,
};

static struct gpio_led imote2_led_pins[] = {
    {
        .name       =  "imote2:red",
        .gpio       = 103,
        .active_low = 1,
    }, {
        .name       = "imote2:green",
        .gpio       = 104,
        .active_low = 1,
    }, {
        .name       = "imote2:blue",
        .gpio       = 105,
        .active_low = 1,
    },
};

static struct gpio_led_platform_data imote2_led_data = {
    .num_leds = ARRAY_SIZE(imote2_led_pins),
    .leds     = imote2_led_pins,
};

static struct platform_device imote2_leds = {
    .name = "leds-gpio",
    .id   = -1,
    .dev = {
        .platform_data = &imote2_led_data,
    },
};

static struct da903x_subdev_info imote2_da9030_subdevs[] = {
    {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO2,
        .platform_data = &stargate2_ldo_init_data[vcc_bbio],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO3,
        .platform_data = &stargate2_ldo_init_data[vcc_bb],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO4,
        .platform_data = &stargate2_ldo_init_data[vcc_pxa_flash],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO5,
        .platform_data = &stargate2_ldo_init_data[vcc_cc2420],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO6,
        .platform_data = &stargate2_ldo_init_data[vcc_vref],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO7,
        .platform_data = &stargate2_ldo_init_data[vcc_sram_ext],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO8,
        .platform_data = &stargate2_ldo_init_data[vcc_mica],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO9,
        .platform_data = &stargate2_ldo_init_data[vcc_bt],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO10,
        .platform_data = &stargate2_ldo_init_data[vcc_sensor_1_8],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO11,
        .platform_data = &stargate2_ldo_init_data[vcc_sensor_3],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO12,
        .platform_data = &stargate2_ldo_init_data[vcc_lcd],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO15,
        .platform_data = &stargate2_ldo_init_data[vcc_pxa_pll],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO17,
        .platform_data = &stargate2_ldo_init_data[vcc_pxa_usim],
    }, {
        .name = "da903x-regulator", /*pxa vcc i/o and cc2420 vcc i/o */
        .id = DA9030_ID_LDO18,
        .platform_data = &stargate2_ldo_init_data[vcc_io],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO19,
        .platform_data = &stargate2_ldo_init_data[vcc_pxa_mem],
    },
};

static struct da903x_platform_data imote2_da9030_pdata = {
    .num_subdevs = ARRAY_SIZE(imote2_da9030_subdevs),
    .subdevs = imote2_da9030_subdevs,
};

static struct i2c_board_info __initdata imote2_pwr_i2c_board_info[] = {
    {
        .type = "da9030",
        .addr = 0x49,
        .platform_data = &imote2_da9030_pdata,
        .irq = PXA_GPIO_TO_IRQ(1),
    },
};

static struct i2c_board_info __initdata imote2_i2c_board_info[] = {
    { /* UCAM sensor board */
        .type = "max1239",
        .addr = 0x35,
    }, { /* ITS400 Sensor board only */
        .type = "max1363",
        .addr = 0x34,
        /* Through a nand gate - Also beware, on V2 sensor board the
         * pull up resistors are missing.
         */
        .irq = PXA_GPIO_TO_IRQ(99),
    }, { /* ITS400 Sensor board only */
        .type = "tsl2561",
        .addr = 0x49,
        /* Through a nand gate - Also beware, on V2 sensor board the
         * pull up resistors are missing.
         */
        .irq = PXA_GPIO_TO_IRQ(99),
    }, { /* ITS400 Sensor board only */
        .type = "tmp175",
        .addr = 0x4A,
        .irq = PXA_GPIO_TO_IRQ(96),
    }, { /* IMB400 Multimedia board */
        .type = "wm8940",
        .addr = 0x1A,
    },
};

static unsigned long imote2_pin_config[] __initdata = {

    /* Button */
    GPIO91_GPIO,

    /* LEDS */
    GPIO103_GPIO, /* red led */
    GPIO104_GPIO, /* green led */
    GPIO105_GPIO, /* blue led */
};

static struct pxa2xx_udc_mach_info imote2_udc_info __initdata = {
    .udc_command        = sg2_udc_command,
};

static struct platform_device imote2_audio_device = {
    .name = "imote2-audio",
    .id   = -1,
};

static struct platform_device *imote2_devices[] = {
    &stargate2_flash_device,
    &imote2_leds,
    &sht15,
    &imote2_audio_device,
};

static void __init imote2_init(void)
{
    pxa2xx_mfp_config(ARRAY_AND_SIZE(imote2_pin_config));

    imote2_stargate2_init();

    platform_add_devices(imote2_devices, ARRAY_SIZE(imote2_devices));

    i2c_register_board_info(0, imote2_i2c_board_info,
                ARRAY_SIZE(imote2_i2c_board_info));
    i2c_register_board_info(1, imote2_pwr_i2c_board_info,
                ARRAY_SIZE(imote2_pwr_i2c_board_info));

    pxa_set_mci_info(&imote2_mci_platform_data);
    pxa_set_udc_info(&imote2_udc_info);
}
#endif

#ifdef CONFIG_MACH_STARGATE2

static unsigned long stargate2_pin_config[] __initdata = {

    GPIO15_nCS_1, /* SRAM */
    /* SMC91x */
    GPIO80_nCS_4,
    GPIO40_GPIO, /*cable detect?*/

    /* Button */
    GPIO91_GPIO | WAKEUP_ON_LEVEL_HIGH,

    /* Compact Flash */
    GPIO79_PSKTSEL,
    GPIO48_nPOE,
    GPIO49_nPWE,
    GPIO50_nPIOR,
    GPIO51_nPIOW,
    GPIO85_nPCE_1,
    GPIO54_nPCE_2,
    GPIO55_nPREG,
    GPIO56_nPWAIT,
    GPIO57_nIOIS16,
    GPIO120_GPIO, /* Buff ctrl */
    GPIO108_GPIO, /* Power ctrl */
    GPIO82_GPIO, /* Reset */
    GPIO53_GPIO, /* SG2_S0_GPIO_DETECT */

    /* MMC not shared with imote2 */
    GPIO90_GPIO, /* nSD detect */
    GPIO89_GPIO, /* SD_POWER_ENABLE */

    /* Bluetooth */
    GPIO81_GPIO, /* reset */
};

static struct resource smc91x_resources[] = {
    [0] = {
        .name = "smc91x-regs",
        .start = (PXA_CS4_PHYS + 0x300),
        .end = (PXA_CS4_PHYS + 0xfffff),
        .flags = IORESOURCE_MEM,
    },
    [1] = {
        .start = PXA_GPIO_TO_IRQ(40),
        .end = PXA_GPIO_TO_IRQ(40),
        .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
    }
};

static struct smc91x_platdata stargate2_smc91x_info = {
    .flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT
    | SMC91X_NOWAIT | SMC91X_USE_DMA,
};

static struct platform_device smc91x_device = {
    .name = "smc91x",
    .id = -1,
    .num_resources = ARRAY_SIZE(smc91x_resources),
    .resource = smc91x_resources,
    .dev = {
        .platform_data = &stargate2_smc91x_info,
    },
};


/*
 * The card detect interrupt isn't debounced so we delay it by 250ms
 * to give the card a chance to fully insert / eject.
 */
static int stargate2_mci_init(struct device *dev,
                  irq_handler_t stargate2_detect_int,
                  void *data)
{
    int err;

    err = gpio_request(SG2_SD_POWER_ENABLE, "SG2_sd_power_enable");
    if (err) {
        printk(KERN_ERR "Can't get the gpio for SD power control");
        goto return_err;
    }
    gpio_direction_output(SG2_SD_POWER_ENABLE, 0);

    err = gpio_request(SG2_GPIO_nSD_DETECT, "SG2_sd_detect");
    if (err) {
        printk(KERN_ERR "Can't get the sd detect gpio");
        goto free_power_en;
    }
    gpio_direction_input(SG2_GPIO_nSD_DETECT);

    err = request_irq(PXA_GPIO_TO_IRQ(SG2_GPIO_nSD_DETECT),
              stargate2_detect_int,
              IRQ_TYPE_EDGE_BOTH,
              "MMC card detect",
              data);
    if (err) {
        printk(KERN_ERR "can't request MMC card detect IRQ\n");
        goto free_nsd_detect;
    }
    return 0;

 free_nsd_detect:
    gpio_free(SG2_GPIO_nSD_DETECT);
 free_power_en:
    gpio_free(SG2_SD_POWER_ENABLE);
 return_err:
    return err;
}

static void stargate2_mci_setpower(struct device *dev, unsigned int vdd)
{
    gpio_set_value(SG2_SD_POWER_ENABLE, !!vdd);
}

static void stargate2_mci_exit(struct device *dev, void *data)
{
    free_irq(PXA_GPIO_TO_IRQ(SG2_GPIO_nSD_DETECT), data);
    gpio_free(SG2_SD_POWER_ENABLE);
    gpio_free(SG2_GPIO_nSD_DETECT);
}

static struct pxamci_platform_data stargate2_mci_platform_data = {
    .detect_delay_ms = 250,
    .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
    .init = stargate2_mci_init,
    .setpower = stargate2_mci_setpower,
    .exit = stargate2_mci_exit,
};


/*
 * SRAM - The Stargate 2 has 32MB of SRAM.
 *
 * Here it is made available as an MTD. This will then
 * typically have a cifs filesystem created on it to provide
 * fast temporary storage.
 */
static struct resource sram_resources = {
    .start = PXA_CS1_PHYS,
    .end = PXA_CS1_PHYS + SZ_32M-1,
    .flags = IORESOURCE_MEM,
};

static struct platdata_mtd_ram stargate2_sram_pdata = {
    .mapname = "Stargate2 SRAM",
    .bankwidth = 2,
};

static struct platform_device stargate2_sram = {
    .name = "mtd-ram",
    .id = 0,
    .resource = &sram_resources,
    .num_resources = 1,
    .dev = {
        .platform_data = &stargate2_sram_pdata,
    },
};

static struct pcf857x_platform_data platform_data_pcf857x = {
    .gpio_base = 128,
    .n_latch = 0,
    .setup = NULL,
    .teardown = NULL,
    .context = NULL,
};

static struct at24_platform_data pca9500_eeprom_pdata = {
    .byte_len = 256,
    .page_size = 4,
};

static int stargate2_reset_bluetooth(void)
{
    int err;
    err = gpio_request(SG2_BT_RESET, "SG2_BT_RESET");
    if (err) {
        printk(KERN_ERR "Could not get gpio for bluetooth reset\n");
        return err;
    }
    gpio_direction_output(SG2_BT_RESET, 1);
    mdelay(5);
    /* now reset it - 5 msec minimum */
    gpio_set_value(SG2_BT_RESET, 0);
    mdelay(10);
    gpio_set_value(SG2_BT_RESET, 1);
    gpio_free(SG2_BT_RESET);
    return 0;
}

static struct led_info stargate2_leds[] = {
    {
        .name = "sg2:red",
        .flags = DA9030_LED_RATE_ON,
    }, {
        .name = "sg2:blue",
        .flags = DA9030_LED_RATE_ON,
    }, {
        .name = "sg2:green",
        .flags = DA9030_LED_RATE_ON,
    },
};

static struct da903x_subdev_info stargate2_da9030_subdevs[] = {
    {
        .name = "da903x-led",
        .id = DA9030_ID_LED_2,
        .platform_data = &stargate2_leds[0],
    }, {
        .name = "da903x-led",
        .id = DA9030_ID_LED_3,
        .platform_data = &stargate2_leds[2],
    }, {
        .name = "da903x-led",
        .id = DA9030_ID_LED_4,
        .platform_data = &stargate2_leds[1],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO2,
        .platform_data = &stargate2_ldo_init_data[vcc_bbio],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO3,
        .platform_data = &stargate2_ldo_init_data[vcc_bb],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO4,
        .platform_data = &stargate2_ldo_init_data[vcc_pxa_flash],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO5,
        .platform_data = &stargate2_ldo_init_data[vcc_cc2420],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO6,
        .platform_data = &stargate2_ldo_init_data[vcc_vref],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO7,
        .platform_data = &stargate2_ldo_init_data[vcc_sram_ext],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO8,
        .platform_data = &stargate2_ldo_init_data[vcc_mica],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO9,
        .platform_data = &stargate2_ldo_init_data[vcc_bt],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO10,
        .platform_data = &stargate2_ldo_init_data[vcc_sensor_1_8],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO11,
        .platform_data = &stargate2_ldo_init_data[vcc_sensor_3],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO12,
        .platform_data = &stargate2_ldo_init_data[vcc_lcd],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO15,
        .platform_data = &stargate2_ldo_init_data[vcc_pxa_pll],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO17,
        .platform_data = &stargate2_ldo_init_data[vcc_pxa_usim],
    }, {
        .name = "da903x-regulator", /*pxa vcc i/o and cc2420 vcc i/o */
        .id = DA9030_ID_LDO18,
        .platform_data = &stargate2_ldo_init_data[vcc_io],
    }, {
        .name = "da903x-regulator",
        .id = DA9030_ID_LDO19,
        .platform_data = &stargate2_ldo_init_data[vcc_pxa_mem],
    },
};

static struct da903x_platform_data stargate2_da9030_pdata = {
    .num_subdevs = ARRAY_SIZE(stargate2_da9030_subdevs),
    .subdevs = stargate2_da9030_subdevs,
};

static struct i2c_board_info __initdata stargate2_pwr_i2c_board_info[] = {
    {
        .type = "da9030",
        .addr = 0x49,
        .platform_data = &stargate2_da9030_pdata,
        .irq = PXA_GPIO_TO_IRQ(1),
    },
};

static struct i2c_board_info __initdata stargate2_i2c_board_info[] = {
    /* Techically this a pca9500 - but it's compatible with the 8574
     * for gpio expansion and the 24c02 for eeprom access.
     */
    {
        .type = "pcf8574",
        .addr =  0x27,
        .platform_data = &platform_data_pcf857x,
    }, {
        .type = "24c02",
        .addr = 0x57,
        .platform_data = &pca9500_eeprom_pdata,
    }, {
        .type = "max1238",
        .addr = 0x35,
    }, { /* ITS400 Sensor board only */
        .type = "max1363",
        .addr = 0x34,
        /* Through a nand gate - Also beware, on V2 sensor board the
         * pull up resistors are missing.
         */
        .irq = PXA_GPIO_TO_IRQ(99),
    }, { /* ITS400 Sensor board only */
        .type = "tsl2561",
        .addr = 0x49,
        /* Through a nand gate - Also beware, on V2 sensor board the
         * pull up resistors are missing.
         */
        .irq = PXA_GPIO_TO_IRQ(99),
    }, { /* ITS400 Sensor board only */
        .type = "tmp175",
        .addr = 0x4A,
        .irq = PXA_GPIO_TO_IRQ(96),
    },
};

/* Board doesn't support cable detection - so always lie and say
 * something is there.
 */
static int sg2_udc_detect(void)
{
    return 1;
}

static struct pxa2xx_udc_mach_info stargate2_udc_info __initdata = {
    .udc_is_connected   = sg2_udc_detect,
    .udc_command        = sg2_udc_command,
};

static struct platform_device *stargate2_devices[] = {
    &stargate2_flash_device,
    &stargate2_sram,
    &smc91x_device,
    &sht15,
};

static void __init stargate2_init(void)
{
    /* This is probably a board specific hack as this must be set
       prior to connecting the MFP stuff up. */
    __raw_writel(__raw_readl(MECR) & ~MECR_NOS, MECR);

    pxa2xx_mfp_config(ARRAY_AND_SIZE(stargate2_pin_config));

    imote2_stargate2_init();

    platform_add_devices(ARRAY_AND_SIZE(stargate2_devices));

    i2c_register_board_info(0, ARRAY_AND_SIZE(stargate2_i2c_board_info));
    i2c_register_board_info(1, stargate2_pwr_i2c_board_info,
                ARRAY_SIZE(stargate2_pwr_i2c_board_info));

    pxa_set_mci_info(&stargate2_mci_platform_data);

    pxa_set_udc_info(&stargate2_udc_info);

    stargate2_reset_bluetooth();
}
#endif

#ifdef CONFIG_MACH_INTELMOTE2
MACHINE_START(INTELMOTE2, "IMOTE 2")
    .map_io     = pxa27x_map_io,
    .nr_irqs    = PXA_NR_IRQS,
    .init_irq   = pxa27x_init_irq,
    .handle_irq = pxa27x_handle_irq,
    .timer      = &pxa_timer,
    .init_machine   = imote2_init,
    .atag_offset    = 0x100,
    .restart    = pxa_restart,
MACHINE_END
#endif

#ifdef CONFIG_MACH_STARGATE2
MACHINE_START(STARGATE2, "Stargate 2")
    .map_io = pxa27x_map_io,
    .nr_irqs = STARGATE_NR_IRQS,
    .init_irq = pxa27x_init_irq,
    .handle_irq = pxa27x_handle_irq,
    .timer = &pxa_timer,
    .init_machine = stargate2_init,
    .atag_offset = 0x100,
    .restart    = pxa_restart,
MACHINE_END
#endif