Logo Search packages:      
Sourcecode: linux version File versions  Download package

scb9328.c

/*
 * linux/arch/arm/mach-mx1/scb9328.c
 *
 * Copyright (c) 2004 Sascha Hauer <saschahauer@web.de>
 * Copyright (c) 2006-2008 Juergen Beisert <jbeisert@netscape.net>
 *
 * 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/platform_device.h>
#include <linux/mtd/physmap.h>
#include <linux/interrupt.h>
#include <linux/dm9000.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>

#include <mach/common.h>
#include <mach/hardware.h>
#include <mach/irqs.h>
#include <mach/imx-uart.h>
#include <mach/iomux.h>

#include "devices.h"

/*
 * This scb9328 has a 32MiB flash
 */
static struct resource flash_resource = {
      .start      = IMX_CS0_PHYS,
      .end  = IMX_CS0_PHYS + (32 * 1024 * 1024) - 1,
      .flags      = IORESOURCE_MEM,
};

static struct physmap_flash_data scb_flash_data = {
      .width  = 2,
};

static struct platform_device scb_flash_device = {
      .name       = "physmap-flash",
      .id         = 0,
      .dev = {
            .platform_data = &scb_flash_data,
      },
      .resource = &flash_resource,
      .num_resources = 1,
};

/*
 * scb9328 has a DM9000 network controller
 * connected to CS5, with 16 bit data path
 * and interrupt connected to GPIO 3
 */

/*
 * internal datapath is fixed 16 bit
 */
static struct dm9000_plat_data dm9000_platdata = {
      .flags      = DM9000_PLATF_16BITONLY,
};

/*
 * the DM9000 drivers wants two defined address spaces
 * to gain access to address latch registers and the data path.
 */
static struct resource dm9000x_resources[] = {
      {
            .name = "address area",
            .start      = IMX_CS5_PHYS,
            .end  = IMX_CS5_PHYS + 1,
            .flags      = IORESOURCE_MEM, /* address access */
      }, {
            .name = "data area",
            .start      = IMX_CS5_PHYS + 4,
            .end  = IMX_CS5_PHYS + 5,
            .flags      = IORESOURCE_MEM, /* data access */
      }, {
            .start      = IRQ_GPIOC(3),
            .end  = IRQ_GPIOC(3),
            .flags      = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
      },
};

static struct platform_device dm9000x_device = {
      .name       = "dm9000",
      .id         = 0,
      .num_resources    = ARRAY_SIZE(dm9000x_resources),
      .resource   = dm9000x_resources,
      .dev        = {
            .platform_data = &dm9000_platdata,
      }
};

static int mxc_uart1_pins[] = {
      PC9_PF_UART1_CTS,
      PC10_PF_UART1_RTS,
      PC11_PF_UART1_TXD,
      PC12_PF_UART1_RXD,
};

static int uart1_mxc_init(struct platform_device *pdev)
{
      return mxc_gpio_setup_multiple_pins(mxc_uart1_pins,
                  ARRAY_SIZE(mxc_uart1_pins), "UART1");
}

static int uart1_mxc_exit(struct platform_device *pdev)
{
      mxc_gpio_release_multiple_pins(mxc_uart1_pins,
                  ARRAY_SIZE(mxc_uart1_pins));
      return 0;
}

static struct imxuart_platform_data uart_pdata = {
      .init = uart1_mxc_init,
      .exit = uart1_mxc_exit,
      .flags = IMXUART_HAVE_RTSCTS,
};

static struct platform_device *devices[] __initdata = {
      &scb_flash_device,
      &dm9000x_device,
};

/*
 * scb9328_init - Init the CPU card itself
 */
static void __init scb9328_init(void)
{
      mxc_register_device(&imx_uart1_device, &uart_pdata);

      printk(KERN_INFO"Scb9328: Adding devices\n");
      platform_add_devices(devices, ARRAY_SIZE(devices));
}

static void __init scb9328_timer_init(void)
{
      mx1_clocks_init(32000);
}

static struct sys_timer scb9328_timer = {
      .init = scb9328_timer_init,
};

MACHINE_START(SCB9328, "Synertronixx scb9328")
    /* Sascha Hauer */
      .phys_io    = 0x00200000,
      .io_pg_offst      = ((0xe0200000) >> 18) & 0xfffc,
      .boot_params      = 0x08000100,
      .map_io           = mx1_map_io,
      .init_irq   = mx1_init_irq,
      .timer            = &scb9328_timer,
      .init_machine     = scb9328_init,
MACHINE_END

Generated by  Doxygen 1.6.0   Back to index