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mach-at2440evb.c

/* linux/arch/arm/mach-s3c2440/mach-at2440evb.c
 *
 * Copyright (c) 2008 Ramax Lo <ramaxlo@gmail.com>
 *      Based on mach-anubis.c by Ben Dooks <ben@simtec.co.uk>
 *      and modifications by SBZ <sbz@spgui.org> and
 *      Weibing <http://weibing.blogbus.com>
 *
 * For product information, visit http://www.arm9e.com/
 *
 * 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/kernel.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/serial_core.h>
#include <linux/dm9000.h>
#include <linux/platform_device.h>

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

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

#include <plat/regs-serial.h>
#include <mach/regs-gpio.h>
#include <mach/regs-mem.h>
#include <mach/regs-lcd.h>
#include <asm/plat-s3c/nand.h>

#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/nand_ecc.h>
#include <linux/mtd/partitions.h>

#include <plat/clock.h>
#include <plat/devs.h>
#include <plat/cpu.h>

static struct map_desc at2440evb_iodesc[] __initdata = {
      /* Nothing here */
};

#define UCON S3C2410_UCON_DEFAULT
#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE)
#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)

static struct s3c24xx_uart_clksrc at2440evb_serial_clocks[] = {
      [0] = {
            .name       = "uclk",
            .divisor    = 1,
            .min_baud   = 0,
            .max_baud   = 0,
      },
      [1] = {
            .name       = "pclk",
            .divisor    = 1,
            .min_baud   = 0,
            .max_baud   = 0,
      }
};


static struct s3c2410_uartcfg at2440evb_uartcfgs[] __initdata = {
      [0] = {
            .hwport          = 0,
            .flags           = 0,
            .ucon      = UCON,
            .ulcon           = ULCON,
            .ufcon           = UFCON,
            .clocks          = at2440evb_serial_clocks,
            .clocks_size = ARRAY_SIZE(at2440evb_serial_clocks),
      },
      [1] = {
            .hwport          = 1,
            .flags           = 0,
            .ucon      = UCON,
            .ulcon           = ULCON,
            .ufcon           = UFCON,
            .clocks          = at2440evb_serial_clocks,
            .clocks_size = ARRAY_SIZE(at2440evb_serial_clocks),
      },
};

/* NAND Flash on AT2440EVB board */

static struct mtd_partition at2440evb_default_nand_part[] = {
      [0] = {
            .name = "Boot Agent",
            .size = SZ_256K,
            .offset     = 0,
      },
      [1] = {
            .name = "Kernel",
            .size = SZ_2M,
            .offset     = SZ_256K,
      },
      [2] = {
            .name = "Root",
            .offset     = SZ_256K + SZ_2M,
            .size = MTDPART_SIZ_FULL,
      },
};

static struct s3c2410_nand_set at2440evb_nand_sets[] = {
      [0] = {
            .name       = "nand",
            .nr_chips   = 1,
            .nr_partitions    = ARRAY_SIZE(at2440evb_default_nand_part),
            .partitions = at2440evb_default_nand_part,
      },
};

static struct s3c2410_platform_nand at2440evb_nand_info = {
      .tacls            = 25,
      .twrph0           = 55,
      .twrph1           = 40,
      .nr_sets    = ARRAY_SIZE(at2440evb_nand_sets),
      .sets       = at2440evb_nand_sets,
};

/* DM9000AEP 10/100 ethernet controller */

static struct resource at2440evb_dm9k_resource[] = {
      [0] = {
            .start = S3C2410_CS3,
            .end   = S3C2410_CS3 + 3,
            .flags = IORESOURCE_MEM
      },
      [1] = {
            .start = S3C2410_CS3 + 4,
            .end   = S3C2410_CS3 + 7,
            .flags = IORESOURCE_MEM
      },
      [2] = {
            .start = IRQ_EINT7,
            .end   = IRQ_EINT7,
            .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
      }
};

static struct dm9000_plat_data at2440evb_dm9k_pdata = {
      .flags            = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
};

static struct platform_device at2440evb_device_eth = {
      .name       = "dm9000",
      .id         = -1,
      .num_resources    = ARRAY_SIZE(at2440evb_dm9k_resource),
      .resource   = at2440evb_dm9k_resource,
      .dev        = {
            .platform_data    = &at2440evb_dm9k_pdata,
      },
};

static struct platform_device *at2440evb_devices[] __initdata = {
      &s3c_device_usb,
      &s3c_device_wdt,
      &s3c_device_adc,
      &s3c_device_i2c,
      &s3c_device_rtc,
      &s3c_device_nand,
      &at2440evb_device_eth,
};

static void __init at2440evb_map_io(void)
{
      s3c_device_nand.dev.platform_data = &at2440evb_nand_info;

      s3c24xx_init_io(at2440evb_iodesc, ARRAY_SIZE(at2440evb_iodesc));
      s3c24xx_init_clocks(16934400);
      s3c24xx_init_uarts(at2440evb_uartcfgs, ARRAY_SIZE(at2440evb_uartcfgs));
}

static void __init at2440evb_init(void)
{
      platform_add_devices(at2440evb_devices, ARRAY_SIZE(at2440evb_devices));
}


MACHINE_START(AT2440EVB, "AT2440EVB")
      .phys_io    = S3C2410_PA_UART,
      .io_pg_offst      = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
      .boot_params      = S3C2410_SDRAM_PA + 0x100,
      .map_io           = at2440evb_map_io,
      .init_machine     = at2440evb_init,
      .init_irq   = s3c24xx_init_irq,
      .timer            = &s3c24xx_timer,
MACHINE_END

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