poodle.c

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/*
 * linux/arch/arm/mach-pxa/poodle.c
 *
 *  Support for the SHARP Poodle Board.
 *
 * Based on:
 *  linux/arch/arm/mach-pxa/lubbock.c Author:   Nicolas Pitre
 *
 *  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.
 *
 * Change Log
 *  12-Dec-2002 Sharp Corporation for Poodle
 *  John Lenz <[email protected]> updates to 2.6
 */
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/export.h>
#include <linux/platform_device.h>
#include <linux/fb.h>
#include <linux/pm.h>
#include <linux/delay.h>
#include <linux/mtd/physmap.h>
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/i2c/pxa-i2c.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/spi/pxa2xx_spi.h>
#include <linux/mtd/sharpsl.h>

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

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

#include <mach/pxa25x.h>
#include <linux/platform_data/mmc-pxamci.h>
#include <mach/udc.h>
#include <linux/platform_data/irda-pxaficp.h>
#include <mach/poodle.h>
#include <linux/platform_data/video-pxafb.h>

#include <asm/hardware/scoop.h>
#include <asm/hardware/locomo.h>
#include <asm/mach/sharpsl_param.h>

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

static unsigned long poodle_pin_config[] __initdata = {
    /* I/O */
    GPIO79_nCS_3,
    GPIO80_nCS_4,
    GPIO18_RDY,

    /* Clock */
    GPIO12_32KHz,

    /* SSP1 */
    GPIO23_SSP1_SCLK,
    GPIO25_SSP1_TXD,
    GPIO26_SSP1_RXD,
    GPIO24_GPIO,    /* POODLE_GPIO_TP_CS - SFRM as chip select */

    /* I2S */
    GPIO28_I2S_BITCLK_OUT,
    GPIO29_I2S_SDATA_IN,
    GPIO30_I2S_SDATA_OUT,
    GPIO31_I2S_SYNC,
    GPIO32_I2S_SYSCLK,

    /* Infra-Red */
    GPIO47_FICP_TXD,
    GPIO46_FICP_RXD,

    /* FFUART */
    GPIO40_FFUART_DTR,
    GPIO41_FFUART_RTS,
    GPIO39_FFUART_TXD,
    GPIO37_FFUART_DSR,
    GPIO34_FFUART_RXD,
    GPIO35_FFUART_CTS,

    /* LCD */
    GPIOxx_LCD_TFT_16BPP,

    /* PC Card */
    GPIO48_nPOE,
    GPIO49_nPWE,
    GPIO50_nPIOR,
    GPIO51_nPIOW,
    GPIO52_nPCE_1,
    GPIO53_nPCE_2,
    GPIO54_nPSKTSEL,
    GPIO55_nPREG,
    GPIO56_nPWAIT,
    GPIO57_nIOIS16,

    /* MMC */
    GPIO6_MMC_CLK,
    GPIO8_MMC_CS0,

    /* GPIO */
    GPIO9_GPIO, /* POODLE_GPIO_nSD_DETECT */
    GPIO7_GPIO, /* POODLE_GPIO_nSD_WP */
    GPIO3_GPIO, /* POODLE_GPIO_SD_PWR */
    GPIO33_GPIO,    /* POODLE_GPIO_SD_PWR1 */

    GPIO20_GPIO,    /* POODLE_GPIO_USB_PULLUP */
    GPIO22_GPIO,    /* POODLE_GPIO_IR_ON */
};

static struct resource poodle_scoop_resources[] = {
    [0] = {
        .start      = 0x10800000,
        .end        = 0x10800fff,
        .flags      = IORESOURCE_MEM,
    },
};

static struct scoop_config poodle_scoop_setup = {
    .io_dir     = POODLE_SCOOP_IO_DIR,
    .io_out     = POODLE_SCOOP_IO_OUT,
    .gpio_base  = POODLE_SCOOP_GPIO_BASE,
};

struct platform_device poodle_scoop_device = {
    .name       = "sharp-scoop",
    .id     = -1,
    .dev        = {
        .platform_data  = &poodle_scoop_setup,
    },
    .num_resources  = ARRAY_SIZE(poodle_scoop_resources),
    .resource   = poodle_scoop_resources,
};

static struct scoop_pcmcia_dev poodle_pcmcia_scoop[] = {
{
    .dev        = &poodle_scoop_device.dev,
    .irq        = POODLE_IRQ_GPIO_CF_IRQ,
    .cd_irq     = POODLE_IRQ_GPIO_CF_CD,
    .cd_irq_str = "PCMCIA0 CD",
},
};

static struct scoop_pcmcia_config poodle_pcmcia_config = {
    .devs         = &poodle_pcmcia_scoop[0],
    .num_devs     = 1,
};

EXPORT_SYMBOL(poodle_scoop_device);


static struct platform_device poodle_audio_device = {
    .name   = "poodle-audio",
    .id = -1,
};

/* LoCoMo device */
static struct resource locomo_resources[] = {
    [0] = {
        .start      = 0x10000000,
        .end        = 0x10001fff,
        .flags      = IORESOURCE_MEM,
    },
    [1] = {
        .start      = PXA_GPIO_TO_IRQ(10),
        .end        = PXA_GPIO_TO_IRQ(10),
        .flags      = IORESOURCE_IRQ,
    },
};

static struct locomo_platform_data locomo_info = {
    .irq_base   = IRQ_BOARD_START,
};

struct platform_device poodle_locomo_device = {
    .name       = "locomo",
    .id     = 0,
    .num_resources  = ARRAY_SIZE(locomo_resources),
    .resource   = locomo_resources,
    .dev        = {
        .platform_data  = &locomo_info,
    },
};

EXPORT_SYMBOL(poodle_locomo_device);

#if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
static struct pxa2xx_spi_master poodle_spi_info = {
    .num_chipselect = 1,
};

static struct ads7846_platform_data poodle_ads7846_info = {
    .model          = 7846,
    .vref_delay_usecs   = 100,
    .x_plate_ohms       = 419,
    .y_plate_ohms       = 486,
    .gpio_pendown       = POODLE_GPIO_TP_INT,
};

static struct pxa2xx_spi_chip poodle_ads7846_chip = {
    .gpio_cs        = POODLE_GPIO_TP_CS,
};

static struct spi_board_info poodle_spi_devices[] = {
    {
        .modalias   = "ads7846",
        .max_speed_hz   = 10000,
        .bus_num    = 1,
        .platform_data  = &poodle_ads7846_info,
        .controller_data= &poodle_ads7846_chip,
        .irq        = PXA_GPIO_TO_IRQ(POODLE_GPIO_TP_INT),
    },
};

static void __init poodle_init_spi(void)
{
    pxa2xx_set_spi_info(1, &poodle_spi_info);
    spi_register_board_info(ARRAY_AND_SIZE(poodle_spi_devices));
}
#else
static inline void poodle_init_spi(void) {}
#endif

/*
 * MMC/SD Device
 *
 * 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 poodle_mci_init(struct device *dev, irq_handler_t poodle_detect_int, void *data)
{
    int err;

    err = gpio_request(POODLE_GPIO_SD_PWR, "SD_PWR");
    if (err)
        goto err_free_2;

    err = gpio_request(POODLE_GPIO_SD_PWR1, "SD_PWR1");
    if (err)
        goto err_free_3;

    gpio_direction_output(POODLE_GPIO_SD_PWR, 0);
    gpio_direction_output(POODLE_GPIO_SD_PWR1, 0);

    return 0;

err_free_3:
    gpio_free(POODLE_GPIO_SD_PWR);
err_free_2:
    return err;
}

static void poodle_mci_setpower(struct device *dev, unsigned int vdd)
{
    struct pxamci_platform_data* p_d = dev->platform_data;

    if ((1 << vdd) & p_d->ocr_mask) {
        gpio_set_value(POODLE_GPIO_SD_PWR, 1);
        mdelay(2);
        gpio_set_value(POODLE_GPIO_SD_PWR1, 1);
    } else {
        gpio_set_value(POODLE_GPIO_SD_PWR1, 0);
        gpio_set_value(POODLE_GPIO_SD_PWR, 0);
    }
}

static void poodle_mci_exit(struct device *dev, void *data)
{
    gpio_free(POODLE_GPIO_SD_PWR1);
    gpio_free(POODLE_GPIO_SD_PWR);
}

static struct pxamci_platform_data poodle_mci_platform_data = {
    .detect_delay_ms    = 250,
    .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
    .init           = poodle_mci_init,
    .setpower       = poodle_mci_setpower,
    .exit           = poodle_mci_exit,
    .gpio_card_detect   = POODLE_GPIO_nSD_DETECT,
    .gpio_card_ro       = POODLE_GPIO_nSD_WP,
    .gpio_power     = -1,
};


/*
 * Irda
 */
static struct pxaficp_platform_data poodle_ficp_platform_data = {
    .gpio_pwdown        = POODLE_GPIO_IR_ON,
    .transceiver_cap    = IR_SIRMODE | IR_OFF,
};


/*
 * USB Device Controller
 */
static struct pxa2xx_udc_mach_info udc_info __initdata = {
    /* no connect GPIO; poodle can't tell connection status */
    .gpio_pullup    = POODLE_GPIO_USB_PULLUP,
};


/* PXAFB device */
static struct pxafb_mode_info poodle_fb_mode = {
    .pixclock   = 144700,
    .xres       = 320,
    .yres       = 240,
    .bpp        = 16,
    .hsync_len  = 7,
    .left_margin    = 11,
    .right_margin   = 30,
    .vsync_len  = 2,
    .upper_margin   = 2,
    .lower_margin   = 0,
    .sync       = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
};

static struct pxafb_mach_info poodle_fb_info = {
    .modes      = &poodle_fb_mode,
    .num_modes  = 1,
    .lcd_conn   = LCD_COLOR_TFT_16BPP,
};

static struct mtd_partition sharpsl_nand_partitions[] = {
    {
        .name = "System Area",
        .offset = 0,
        .size = 7 * 1024 * 1024,
    },
    {
        .name = "Root Filesystem",
        .offset = 7 * 1024 * 1024,
        .size = 22 * 1024 * 1024,
    },
    {
        .name = "Home Filesystem",
        .offset = MTDPART_OFS_APPEND,
        .size = MTDPART_SIZ_FULL,
    },
};

static uint8_t scan_ff_pattern[] = { 0xff, 0xff };

static struct nand_bbt_descr sharpsl_bbt = {
    .options = 0,
    .offs = 4,
    .len = 2,
    .pattern = scan_ff_pattern
};

static struct sharpsl_nand_platform_data sharpsl_nand_platform_data = {
    .badblock_pattern   = &sharpsl_bbt,
    .partitions     = sharpsl_nand_partitions,
    .nr_partitions      = ARRAY_SIZE(sharpsl_nand_partitions),
};

static struct resource sharpsl_nand_resources[] = {
    {
        .start  = 0x0C000000,
        .end    = 0x0C000FFF,
        .flags  = IORESOURCE_MEM,
    },
};

static struct platform_device sharpsl_nand_device = {
    .name       = "sharpsl-nand",
    .id     = -1,
    .resource   = sharpsl_nand_resources,
    .num_resources  = ARRAY_SIZE(sharpsl_nand_resources),
    .dev.platform_data  = &sharpsl_nand_platform_data,
};

static struct mtd_partition sharpsl_rom_parts[] = {
    {
        .name   ="Boot PROM Filesystem",
        .offset = 0x00120000,
        .size   = MTDPART_SIZ_FULL,
    },
};

static struct physmap_flash_data sharpsl_rom_data = {
    .width      = 2,
    .nr_parts   = ARRAY_SIZE(sharpsl_rom_parts),
    .parts      = sharpsl_rom_parts,
};

static struct resource sharpsl_rom_resources[] = {
    {
        .start  = 0x00000000,
        .end    = 0x007fffff,
        .flags  = IORESOURCE_MEM,
    },
};

static struct platform_device sharpsl_rom_device = {
    .name   = "physmap-flash",
    .id = -1,
    .resource = sharpsl_rom_resources,
    .num_resources = ARRAY_SIZE(sharpsl_rom_resources),
    .dev.platform_data = &sharpsl_rom_data,
};

static struct platform_device *devices[] __initdata = {
    &poodle_locomo_device,
    &poodle_scoop_device,
    &poodle_audio_device,
    &sharpsl_nand_device,
    &sharpsl_rom_device,
};

static struct i2c_board_info __initdata poodle_i2c_devices[] = {
    { I2C_BOARD_INFO("wm8731", 0x1b) },
};

static void poodle_poweroff(void)
{
    pxa_restart('h', NULL);
}

static void __init poodle_init(void)
{
    int ret = 0;

    pm_power_off = poodle_poweroff;

    PCFR |= PCFR_OPDE;

    pxa2xx_mfp_config(ARRAY_AND_SIZE(poodle_pin_config));

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

    platform_scoop_config = &poodle_pcmcia_config;

    ret = platform_add_devices(devices, ARRAY_SIZE(devices));
    if (ret)
        pr_warning("poodle: Unable to register LoCoMo device\n");

    pxa_set_fb_info(&poodle_locomo_device.dev, &poodle_fb_info);
    pxa_set_udc_info(&udc_info);
    pxa_set_mci_info(&poodle_mci_platform_data);
    pxa_set_ficp_info(&poodle_ficp_platform_data);
    pxa_set_i2c_info(NULL);
    i2c_register_board_info(0, ARRAY_AND_SIZE(poodle_i2c_devices));
    poodle_init_spi();
}

static void __init fixup_poodle(struct tag *tags, char **cmdline,
                struct meminfo *mi)
{
    sharpsl_save_param();
    mi->nr_banks=1;
    mi->bank[0].start = 0xa0000000;
    mi->bank[0].size = (32*1024*1024);
}

MACHINE_START(POODLE, "SHARP Poodle")
    .fixup      = fixup_poodle,
    .map_io     = pxa25x_map_io,
    .nr_irqs    = POODLE_NR_IRQS,   /* 4 for LoCoMo */
    .init_irq   = pxa25x_init_irq,
    .handle_irq = pxa25x_handle_irq,
    .timer      = &pxa_timer,
    .init_machine   = poodle_init,
    .restart    = pxa_restart,
MACHINE_END