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poodle.c

/*
 * 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 <lenz@cs.wisc.edu> updates to 2.6
 */
#include <linux/kernel.h>
#include <linux/init.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/spi/spi.h>
#include <linux/spi/ads7846.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/system.h>

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

#include <mach/pxa25x.h>
#include <mach/mmc.h>
#include <mach/udc.h>
#include <plat/i2c.h>
#include <mach/irda.h>
#include <mach/poodle.h>
#include <mach/pxafb.h>
#include <mach/sharpsl.h>
#include <mach/ssp.h>
#include <mach/pxa2xx_spi.h>

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

#include "generic.h"
#include "devices.h"
#include "sharpsl.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 */
      GPIO58_LCD_LDD_0,
      GPIO59_LCD_LDD_1,
      GPIO60_LCD_LDD_2,
      GPIO61_LCD_LDD_3,
      GPIO62_LCD_LDD_4,
      GPIO63_LCD_LDD_5,
      GPIO64_LCD_LDD_6,
      GPIO65_LCD_LDD_7,
      GPIO66_LCD_LDD_8,
      GPIO67_LCD_LDD_9,
      GPIO68_LCD_LDD_10,
      GPIO69_LCD_LDD_11,
      GPIO70_LCD_LDD_12,
      GPIO71_LCD_LDD_13,
      GPIO72_LCD_LDD_14,
      GPIO73_LCD_LDD_15,
      GPIO74_LCD_FCLK,
      GPIO75_LCD_LCLK,
      GPIO76_LCD_PCLK,
      GPIO77_LCD_BIAS,

      /* 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);


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

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

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        = 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 = {
      .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_IRQ_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,
      &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)
{
      arm_machine_restart('h', NULL);
}

static void poodle_restart(char mode, const char *cmd)
{
      arm_machine_restart('h', cmd);
}

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

      pm_power_off = poodle_poweroff;
      arm_pm_restart = poodle_restart;

      PCFR |= PCFR_OPDE;

      pxa2xx_mfp_config(ARRAY_AND_SIZE(poodle_pin_config));

      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");

      set_pxa_fb_parent(&poodle_locomo_device.dev);
      set_pxa_fb_info(&poodle_fb_info);
      pxa_set_udc_info(&udc_info);
      poodle_mci_platform_data.detect_delay = msecs_to_jiffies(250);
      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 machine_desc *desc,
            struct tag *tags, char **cmdline, struct meminfo *mi)
{
      sharpsl_save_param();
      mi->nr_banks=1;
      mi->bank[0].start = 0xa0000000;
      mi->bank[0].node = 0;
      mi->bank[0].size = (32*1024*1024);
}

MACHINE_START(POODLE, "SHARP Poodle")
      .phys_io    = 0x40000000,
      .io_pg_offst      = (io_p2v(0x40000000) >> 18) & 0xfffc,
      .fixup            = fixup_poodle,
      .map_io           = pxa_map_io,
      .init_irq   = pxa25x_init_irq,
      .timer            = &pxa_timer,
      .init_machine     = poodle_init,
MACHINE_END

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