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config.c

/***************************************************************************/

/*
 *    linux/arch/m68knommu/platform/523x/config.c
 *
 *    Sub-architcture dependant initialization code for the Freescale
 *    523x CPUs.
 *
 *    Copyright (C) 1999-2005, Greg Ungerer (gerg@snapgear.com)
 *    Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com)
 */

/***************************************************************************/

#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/init.h>
#include <linux/io.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#include <asm/mcfuart.h>

/***************************************************************************/

static struct mcf_platform_uart m523x_uart_platform[] = {
      {
            .mapbase    = MCF_MBAR + MCFUART_BASE1,
            .irq        = MCFINT_VECBASE + MCFINT_UART0,
      },
      {
            .mapbase    = MCF_MBAR + MCFUART_BASE2,
            .irq        = MCFINT_VECBASE + MCFINT_UART0 + 1,
      },
      {
            .mapbase    = MCF_MBAR + MCFUART_BASE3,
            .irq        = MCFINT_VECBASE + MCFINT_UART0 + 2,
      },
      { },
};

static struct platform_device m523x_uart = {
      .name             = "mcfuart",
      .id               = 0,
      .dev.platform_data      = m523x_uart_platform,
};

static struct resource m523x_fec_resources[] = {
      {
            .start            = MCF_MBAR + 0x1000,
            .end        = MCF_MBAR + 0x1000 + 0x7ff,
            .flags            = IORESOURCE_MEM,
      },
      {
            .start            = 64 + 23,
            .end        = 64 + 23,
            .flags            = IORESOURCE_IRQ,
      },
      {
            .start            = 64 + 27,
            .end        = 64 + 27,
            .flags            = IORESOURCE_IRQ,
      },
      {
            .start            = 64 + 29,
            .end        = 64 + 29,
            .flags            = IORESOURCE_IRQ,
      },
};

static struct platform_device m523x_fec = {
      .name             = "fec",
      .id               = 0,
      .num_resources          = ARRAY_SIZE(m523x_fec_resources),
      .resource         = m523x_fec_resources,
};

static struct platform_device *m523x_devices[] __initdata = {
      &m523x_uart,
      &m523x_fec,
};

/***************************************************************************/

static void __init m523x_fec_init(void)
{
      u16 par;
      u8 v;

      /* Set multi-function pins to ethernet use */
      par = readw(MCF_IPSBAR + 0x100082);
      writew(par | 0xf00, MCF_IPSBAR + 0x100082);
      v = readb(MCF_IPSBAR + 0x100078);
      writeb(v | 0xc0, MCF_IPSBAR + 0x100078);
}

/***************************************************************************/

static void m523x_cpu_reset(void)
{
      local_irq_disable();
      __raw_writeb(MCF_RCR_SWRESET, MCF_IPSBAR + MCF_RCR);
}

/***************************************************************************/

void __init config_BSP(char *commandp, int size)
{
      mach_reset = m523x_cpu_reset;
}

/***************************************************************************/

static int __init init_BSP(void)
{
      m523x_fec_init();
      platform_add_devices(m523x_devices, ARRAY_SIZE(m523x_devices));
      return 0;
}

arch_initcall(init_BSP);

/***************************************************************************/

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