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stargate2.c

/*
 *  linux/arch/arm/mach-pxa/stargate2.c
 *
 *  Author: Ed C. Epp
 *  Created:      Nov 05, 2002
 *  Copyright:    Intel Corp.
 *
 *  Modified 2009:  Jonathan Cameron <jic23@cam.ac.uk>
 *
 *  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/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 <plat/i2c.h>
#include <mach/mmc.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/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[] = {
      {
            .dev = &sht15.dev,
            .supply = "vcc",
      },
};

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 = IRQ_GPIO(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 = 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 = IRQ_GPIO(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 = IRQ_GPIO(99),
      }, { /* ITS400 Sensor board only */
            .type = "tmp175",
            .addr = 0x4A,
            .irq = IRQ_GPIO(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_devices[] = {
      &stargate2_flash_device,
      &imote2_leds,
      &sht15,
};

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 = IRQ_GPIO(40),
            .end = IRQ_GPIO(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(IRQ_GPIO(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;
}

/**
 * stargate2_mci_setpower() - set state of mmc power supply
 *
 * Very simple control. Either it is on or off and is controlled by
 * a gpio pin */
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(IRQ_GPIO(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,
};

/**
 * stargate2_reset_bluetooth() reset the bluecore to ensure consistent state
 **/
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 = 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 = IRQ_GPIO(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 = IRQ_GPIO(99),
      }, { /* ITS400 Sensor board only */
            .type = "tmp175",
            .addr = 0x4A,
            .irq = IRQ_GPIO(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,
      .init_irq   = pxa27x_init_irq,
      .timer            = &pxa_timer,
      .init_machine     = imote2_init,
      .boot_params      = 0xA0000100,
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,
      .timer = &pxa_timer,
      .init_machine = stargate2_init,
      .boot_params = 0xA0000100,
MACHINE_END
#endif

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