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ezkit.c

/*
 * File:         arch/blackfin/mach-bf533/ezkit.c
 * Based on:     Original Work
 * Author:       Aidan Williams <aidan@nicta.com.au>
 *
 * Created:      2005
 * Description:
 *
 * Modified:     Robin Getz <rgetz@blackfin.uclinux.org> - Named the boards
 *               Copyright 2005 National ICT Australia (NICTA)
 *               Copyright 2004-2006 Analog Devices Inc.
 *
 * Bugs:         Enter bugs at http://blackfin.uclinux.org/
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see the file COPYING, or write
 * to the Free Software Foundation, Inc.,
 * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
#include <linux/usb/isp1362.h>
#include <linux/pata_platform.h>
#include <linux/irq.h>
#include <asm/dma.h>
#include <asm/bfin5xx_spi.h>
#include <asm/portmux.h>

/*
 * Name the Board for the /proc/cpuinfo
 */
const char bfin_board_name[] = "ADDS-BF533-EZKIT";

#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
static struct platform_device rtc_device = {
      .name = "rtc-bfin",
      .id   = -1,
};
#endif

#if defined(CONFIG_FB_BFIN_7393) || defined(CONFIG_FB_BFIN_7393_MODULE)
static struct platform_device bfin_fb_adv7393_device = {
      .name = "bfin-adv7393",
};
#endif

/*
 *  USB-LAN EzExtender board
 *  Driver needs to know address, irq and flag pin.
 */
#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
static struct resource smc91x_resources[] = {
      {
            .name = "smc91x-regs",
            .start = 0x20310300,
            .end = 0x20310300 + 16,
            .flags = IORESOURCE_MEM,
      }, {
            .start = IRQ_PF9,
            .end = IRQ_PF9,
            .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
      },
};
static struct platform_device smc91x_device = {
      .name = "smc91x",
      .id = 0,
      .num_resources = ARRAY_SIZE(smc91x_resources),
      .resource = smc91x_resources,
};
#endif

#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
/* all SPI peripherals info goes here */

#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
static struct mtd_partition bfin_spi_flash_partitions[] = {
      {
            .name = "bootloader",
            .size = 0x00020000,
            .offset = 0,
            .mask_flags = MTD_CAP_ROM
      }, {
            .name = "kernel",
            .size = 0xe0000,
            .offset = 0x20000
      }, {
            .name = "file system",
            .size = 0x700000,
            .offset = 0x00100000,
      }
};

static struct flash_platform_data bfin_spi_flash_data = {
      .name = "m25p80",
      .parts = bfin_spi_flash_partitions,
      .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
      .type = "m25p64",
};

/* SPI flash chip (m25p64) */
static struct bfin5xx_spi_chip spi_flash_chip_info = {
      .enable_dma = 0,         /* use dma transfer with this chip*/
      .bits_per_word = 8,
};
#endif

#if defined(CONFIG_SPI_ADC_BF533) || defined(CONFIG_SPI_ADC_BF533_MODULE)
/* SPI ADC chip */
static struct bfin5xx_spi_chip spi_adc_chip_info = {
      .enable_dma = 1,         /* use dma transfer with this chip*/
      .bits_per_word = 16,
};
#endif

#if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE)
static struct bfin5xx_spi_chip ad1836_spi_chip_info = {
      .enable_dma = 0,
      .bits_per_word = 16,
};
#endif

static struct spi_board_info bfin_spi_board_info[] __initdata = {
#if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
      {
            /* the modalias must be the same as spi device driver name */
            .modalias = "m25p80", /* Name of spi_driver for this device */
            .max_speed_hz = 25000000,     /* max spi clock (SCK) speed in HZ */
            .bus_num = 0, /* Framework bus number */
            .chip_select = 2, /* Framework chip select. On STAMP537 it is SPISSEL2*/
            .platform_data = &bfin_spi_flash_data,
            .controller_data = &spi_flash_chip_info,
            .mode = SPI_MODE_3,
      },
#endif

#if defined(CONFIG_SPI_ADC_BF533) || defined(CONFIG_SPI_ADC_BF533_MODULE)
      {
            .modalias = "bfin_spi_adc", /* Name of spi_driver for this device */
            .max_speed_hz = 6250000,     /* max spi clock (SCK) speed in HZ */
            .bus_num = 0, /* Framework bus number */
            .chip_select = 1, /* Framework chip select. */
            .platform_data = NULL, /* No spi_driver specific config */
            .controller_data = &spi_adc_chip_info,
      },
#endif

#if defined(CONFIG_SND_BLACKFIN_AD1836) || defined(CONFIG_SND_BLACKFIN_AD1836_MODULE)
      {
            .modalias = "ad1836-spi",
            .max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
            .bus_num = 0,
            .chip_select = CONFIG_SND_BLACKFIN_SPI_PFBIT,
            .controller_data = &ad1836_spi_chip_info,
      },
#endif
};

/* SPI (0) */
static struct resource bfin_spi0_resource[] = {
      [0] = {
            .start = SPI0_REGBASE,
            .end   = SPI0_REGBASE + 0xFF,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = CH_SPI,
            .end   = CH_SPI,
            .flags = IORESOURCE_IRQ,
      }
};

/* SPI controller data */
static struct bfin5xx_spi_master bfin_spi0_info = {
      .num_chipselect = 8,
      .enable_dma = 1,  /* master has the ability to do dma transfer */
      .pin_req = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0},
};

static struct platform_device bfin_spi0_device = {
      .name = "bfin-spi",
      .id = 0, /* Bus number */
      .num_resources = ARRAY_SIZE(bfin_spi0_resource),
      .resource = bfin_spi0_resource,
      .dev = {
            .platform_data = &bfin_spi0_info, /* Passed to driver */
      },
};
#endif  /* spi master and devices */

#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
static struct resource bfin_uart_resources[] = {
      {
            .start = 0xFFC00400,
            .end = 0xFFC004FF,
            .flags = IORESOURCE_MEM,
      },
};

static struct platform_device bfin_uart_device = {
      .name = "bfin-uart",
      .id = 1,
      .num_resources = ARRAY_SIZE(bfin_uart_resources),
      .resource = bfin_uart_resources,
};
#endif

#if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
#define PATA_INT  55

static struct pata_platform_info bfin_pata_platform_data = {
      .ioport_shift = 1,
      .irq_type = IRQF_TRIGGER_HIGH | IRQF_DISABLED,
};

static struct resource bfin_pata_resources[] = {
      {
            .start = 0x20314020,
            .end = 0x2031403F,
            .flags = IORESOURCE_MEM,
      },
      {
            .start = 0x2031401C,
            .end = 0x2031401F,
            .flags = IORESOURCE_MEM,
      },
      {
            .start = PATA_INT,
            .end = PATA_INT,
            .flags = IORESOURCE_IRQ,
      },
};

static struct platform_device bfin_pata_device = {
      .name = "pata_platform",
      .id = -1,
      .num_resources = ARRAY_SIZE(bfin_pata_resources),
      .resource = bfin_pata_resources,
      .dev = {
            .platform_data = &bfin_pata_platform_data,
      }
};
#endif

static struct platform_device *ezkit_devices[] __initdata = {
#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
      &smc91x_device,
#endif

#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
      &bfin_spi0_device,
#endif

#if defined(CONFIG_FB_BFIN_7393) || defined(CONFIG_FB_BFIN_7393_MODULE)
      &bfin_fb_adv7393_device,
#endif

#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
      &rtc_device,
#endif

#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
      &bfin_uart_device,
#endif

#if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
      &bfin_pata_device,
#endif
};

static int __init ezkit_init(void)
{
      printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__);
      platform_add_devices(ezkit_devices, ARRAY_SIZE(ezkit_devices));
#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
      spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
#endif

#if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
      irq_desc[PATA_INT].status |= IRQ_NOAUTOEN;
#endif
      return 0;
}

arch_initcall(ezkit_init);

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