board-edosk7760.c

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/*
 * Renesas Europe EDOSK7760 Board Support
 *
 * Copyright (C) 2008 SPES Societa' Progettazione Elettronica e Software Ltd.
 * Author: Luca Santini <[email protected]>
 *
 * 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, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
#include <linux/init.h>
#include <linux/types.h>
#include <linux/platform_device.h>
#include <linux/smc91x.h>
#include <linux/interrupt.h>
#include <linux/sh_intc.h>
#include <linux/i2c.h>
#include <linux/mtd/physmap.h>
#include <asm/machvec.h>
#include <asm/io.h>
#include <asm/addrspace.h>
#include <asm/delay.h>
#include <asm/i2c-sh7760.h>
#include <asm/sizes.h>

/* Bus state controller registers for CS4 area */
#define BSC_CS4BCR  0xA4FD0010
#define BSC_CS4WCR  0xA4FD0030

#define SMC_IOBASE  0xA2000000
#define SMC_IO_OFFSET   0x300
#define SMC_IOADDR  (SMC_IOBASE + SMC_IO_OFFSET)

/* NOR flash */
static struct mtd_partition edosk7760_nor_flash_partitions[] = {
    {
        .name = "bootloader",
        .offset = 0,
        .size = SZ_256K,
        .mask_flags = MTD_WRITEABLE,    /* Read-only */
    }, {
        .name = "kernel",
        .offset = MTDPART_OFS_APPEND,
        .size = SZ_2M,
    }, {
        .name = "fs",
        .offset = MTDPART_OFS_APPEND,
        .size = (26 << 20),
    }, {
        .name = "other",
        .offset = MTDPART_OFS_APPEND,
        .size = MTDPART_SIZ_FULL,
    },
};

static struct physmap_flash_data edosk7760_nor_flash_data = {
    .width      = 4,
    .parts      = edosk7760_nor_flash_partitions,
    .nr_parts   = ARRAY_SIZE(edosk7760_nor_flash_partitions),
};

static struct resource edosk7760_nor_flash_resources[] = {
    [0] = {
        .name   = "NOR Flash",
        .start  = 0x00000000,
        .end    = 0x00000000 + SZ_32M - 1,
        .flags  = IORESOURCE_MEM,
    }
};

static struct platform_device edosk7760_nor_flash_device = {
    .name       = "physmap-flash",
    .resource   = edosk7760_nor_flash_resources,
    .num_resources  = ARRAY_SIZE(edosk7760_nor_flash_resources),
    .dev        = {
        .platform_data = &edosk7760_nor_flash_data,
    },
};

/* i2c initialization functions */
static struct sh7760_i2c_platdata i2c_pd = {
    .speed_khz  = 400,
};

static struct resource sh7760_i2c1_res[] = {
    {
        .start  = SH7760_I2C1_MMIO,
        .end    = SH7760_I2C1_MMIOEND,
        .flags  = IORESOURCE_MEM,
    },{
        .start  = evt2irq(0x9e0),
        .end    = evt2irq(0x9e0),
        .flags  = IORESOURCE_IRQ,
    },
};

static struct platform_device sh7760_i2c1_dev = {
    .dev    = {
        .platform_data  = &i2c_pd,
    },

    .name       = SH7760_I2C_DEVNAME,
    .id     = 1,
    .resource   = sh7760_i2c1_res,
    .num_resources  = ARRAY_SIZE(sh7760_i2c1_res),
};

static struct resource sh7760_i2c0_res[] = {
    {
        .start  = SH7760_I2C0_MMIO,
        .end    = SH7760_I2C0_MMIOEND,
        .flags  = IORESOURCE_MEM,
    }, {
        .start  = evt2irq(0x9c0),
        .end    = evt2irq(0x9c0),
        .flags  = IORESOURCE_IRQ,
    },
};

static struct platform_device sh7760_i2c0_dev = {
    .dev    = {
        .platform_data  = &i2c_pd,
    },
    .name       = SH7760_I2C_DEVNAME,
    .id     = 0,
    .resource   = sh7760_i2c0_res,
    .num_resources  = ARRAY_SIZE(sh7760_i2c0_res),
};

/* eth initialization functions */
static struct smc91x_platdata smc91x_info = {
    .flags = SMC91X_USE_16BIT | SMC91X_IO_SHIFT_1 | IORESOURCE_IRQ_LOWLEVEL,
};

static struct resource smc91x_res[] = {
    [0] = {
        .start  = SMC_IOADDR,
        .end    = SMC_IOADDR + SZ_32 - 1,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = evt2irq(0x2a0),
        .end    = evt2irq(0x2a0),
        .flags  = IORESOURCE_IRQ ,
    }
};

static struct platform_device smc91x_dev = {
    .name       = "smc91x",
    .id     = -1,
    .num_resources  = ARRAY_SIZE(smc91x_res),
    .resource   = smc91x_res,

    .dev    = {
        .platform_data  = &smc91x_info,
    },
};

/* platform init code */
static struct platform_device *edosk7760_devices[] __initdata = {
    &smc91x_dev,
    &edosk7760_nor_flash_device,
    &sh7760_i2c0_dev,
    &sh7760_i2c1_dev,
};

static int __init init_edosk7760_devices(void)
{
    plat_irq_setup_pins(IRQ_MODE_IRQ);

    return platform_add_devices(edosk7760_devices,
                    ARRAY_SIZE(edosk7760_devices));
}
device_initcall(init_edosk7760_devices);

/*
 * The Machine Vector
 */
struct sh_machine_vector mv_edosk7760 __initmv = {
    .mv_name    = "EDOSK7760",
};