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mx1ads.c

/*
 * arch/arm/mach-imx/mx1ads.c
 *
 * Initially based on:
 *    linux-2.6.7-imx/arch/arm/mach-imx/scb9328.c
 *    Copyright (c) 2004 Sascha Hauer <sascha@saschahauer.de>
 *
 * 2004 (c) MontaVista Software, Inc.
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2. This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 */

#include <linux/i2c.h>
#include <linux/i2c/pcf857x.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/mtd/physmap.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/i2c.h>
#include <mach/imx-uart.h>
#include <mach/iomux.h>
#include <mach/irqs.h>

#include "devices.h"

static int mx1ads_pins[] = {
      /* UART1 */
      PC9_PF_UART1_CTS,
      PC10_PF_UART1_RTS,
      PC11_PF_UART1_TXD,
      PC12_PF_UART1_RXD,
      /* UART2 */
      PB28_PF_UART2_CTS,
      PB29_PF_UART2_RTS,
      PB30_PF_UART2_TXD,
      PB31_PF_UART2_RXD,
      /* I2C */
      PA15_PF_I2C_SDA,
      PA16_PF_I2C_SCL,
      /* SPI */
      PC13_PF_SPI1_SPI_RDY,
      PC14_PF_SPI1_SCLK,
      PC15_PF_SPI1_SS,
      PC16_PF_SPI1_MISO,
      PC17_PF_SPI1_MOSI,
};

/*
 * UARTs platform data
 */

static struct imxuart_platform_data uart_pdata[] = {
      {
            .flags = IMXUART_HAVE_RTSCTS,
      }, {
            .flags = IMXUART_HAVE_RTSCTS,
      },
};

/*
 * Physmap flash
 */

static struct physmap_flash_data mx1ads_flash_data = {
      .width            = 4,        /* bankwidth in bytes */
};

static struct resource flash_resource = {
      .start      = IMX_CS0_PHYS,
      .end  = IMX_CS0_PHYS + SZ_32M - 1,
      .flags      = IORESOURCE_MEM,
};

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

/*
 * I2C
 */
static struct pcf857x_platform_data pcf857x_data[] = {
      {
            .gpio_base = 4 * 32,
      }, {
            .gpio_base = 4 * 32 + 16,
      }
};

static struct imxi2c_platform_data mx1ads_i2c_data = {
      .bitrate = 100000,
};

static struct i2c_board_info mx1ads_i2c_devices[] = {
      {
            I2C_BOARD_INFO("pcf8575", 0x22),
            .platform_data = &pcf857x_data[0],
      }, {
            I2C_BOARD_INFO("pcf8575", 0x24),
            .platform_data = &pcf857x_data[1],
      },
};

/*
 * Board init
 */
static void __init mx1ads_init(void)
{
      mxc_gpio_setup_multiple_pins(mx1ads_pins,
            ARRAY_SIZE(mx1ads_pins), "mx1ads");

      /* UART */
      mxc_register_device(&imx_uart1_device, &uart_pdata[0]);
      mxc_register_device(&imx_uart2_device, &uart_pdata[1]);

      /* Physmap flash */
      mxc_register_device(&flash_device, &mx1ads_flash_data);

      /* I2C */
      i2c_register_board_info(0, mx1ads_i2c_devices,
                        ARRAY_SIZE(mx1ads_i2c_devices));

      mxc_register_device(&imx_i2c_device, &mx1ads_i2c_data);
}

static void __init mx1ads_timer_init(void)
{
      mx1_clocks_init(32000);
}

struct sys_timer mx1ads_timer = {
      .init = mx1ads_timer_init,
};

MACHINE_START(MX1ADS, "Freescale MX1ADS")
      /* Maintainer: Sascha Hauer, Pengutronix */
      .phys_io    = IMX_IO_PHYS,
      .io_pg_offst      = (IMX_IO_BASE >> 18) & 0xfffc,
      .boot_params      = PHYS_OFFSET + 0x100,
      .map_io           = mx1_map_io,
      .init_irq   = mx1_init_irq,
      .timer            = &mx1ads_timer,
      .init_machine     = mx1ads_init,
MACHINE_END

MACHINE_START(MXLADS, "Freescale MXLADS")
      .phys_io    = IMX_IO_PHYS,
      .io_pg_offst      = (IMX_IO_BASE >> 18) & 0xfffc,
      .boot_params      = PHYS_OFFSET + 0x100,
      .map_io           = mx1_map_io,
      .init_irq   = mx1_init_irq,
      .timer            = &mx1ads_timer,
      .init_machine     = mx1ads_init,
MACHINE_END

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