/*
 *  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/platform_data/i2c-pxa.h>
#include <linux/platform_data/pcf857x.h>
#include <linux/smc91x.h>
#include <linux/gpio/machine.h>
#include <linux/gpio.h>
#include <linux/leds.h>
#include <linux/property.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 "pxa27x.h"
#include <linux/platform_data/mmc-pxamci.h>
#include "udc.h"
#include "pxa27x-udc.h"
#include <mach/smemc.h>

#include <linux/spi/spi.h>
#include <linux/spi/pxa2xx_spi.h>
#include <linux/mfd/da903x.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 gpiod_lookup_table sht15_gpiod_table = {
        .dev_id = "sht15",
        .table = {
                /* FIXME: should this have |GPIO_OPEN_DRAIN set? */
                GPIO_LOOKUP("gpio-pxa", 100, "data", GPIO_ACTIVE_HIGH),
                GPIO_LOOKUP("gpio-pxa", 98, "clk", GPIO_ACTIVE_HIGH),
        },
};

static struct platform_device sht15 = {
        .name = "sht15",
        .id = -1,
};

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();

        gpiod_add_lookup_table(&sht15_gpiod_table);
        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,
        .pxa_u16_align4 = true,
};

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;
}

/**
 * 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 int stargate2_mci_setpower(struct device *dev, unsigned int vdd)
{
        gpio_set_value(SG2_SD_POWER_ENABLE, !!vdd);
        return 0;
}

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 const struct property_entry pca9500_eeprom_properties[] = {
        PROPERTY_ENTRY_U32("pagesize", 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 = 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,
                .properties = pca9500_eeprom_properties,
        }, {
                .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();

        gpiod_add_lookup_table(&sht15_gpiod_table);
        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,
        .init_time      = pxa_timer_init,
        .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,
        .init_time      = pxa_timer_init,
        .init_machine = stargate2_init,
        .atag_offset = 0x100,
        .restart        = pxa_restart,
MACHINE_END
#endif