mach-mx1ads.c

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/*
 * arch/arm/mach-imx/mach-mx1ads.c
 *
 * Initially based on:
 *  linux-2.6.7-imx/arch/arm/mach-imx/scb9328.c
 *  Copyright (c) 2004 Sascha Hauer <[email protected]>
 *
 * 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/iomux-mx1.h>

#include "devices-imx1.h"

static const int mx1ads_pins[] __initconst = {
    /* 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 const struct imxuart_platform_data uart0_pdata __initconst = {
    .flags = IMXUART_HAVE_RTSCTS,
};
       
static const struct imxuart_platform_data uart1_pdata __initconst = {
    .flags = IMXUART_HAVE_RTSCTS,
};

/*
 * Physmap flash
 */

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

static const struct resource flash_resource __initconst = {
    .start  = MX1_CS0_PHYS,
    .end    = MX1_CS0_PHYS + SZ_32M - 1,
    .flags  = IORESOURCE_MEM,
};

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

static const struct imxi2c_platform_data mx1ads_i2c_data __initconst = {
    .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)
{
    imx1_soc_init();

    mxc_gpio_setup_multiple_pins(mx1ads_pins,
        ARRAY_SIZE(mx1ads_pins), "mx1ads");

    /* UART */
    imx1_add_imx_uart0(&uart0_pdata);
    imx1_add_imx_uart1(&uart1_pdata);

    /* Physmap flash */
    platform_device_register_resndata(NULL, "physmap-flash", 0,
            &flash_resource, 1,
            &mx1ads_flash_data, sizeof(mx1ads_flash_data));

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

    imx1_add_imx_i2c(&mx1ads_i2c_data);
}

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

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

MACHINE_START(MX1ADS, "Freescale MX1ADS")
    /* Maintainer: Sascha Hauer, Pengutronix */
    .atag_offset = 0x100,
    .map_io = mx1_map_io,
    .init_early = imx1_init_early,
    .init_irq = mx1_init_irq,
    .handle_irq = imx1_handle_irq,
    .timer = &mx1ads_timer,
    .init_machine = mx1ads_init,
    .restart    = mxc_restart,
MACHINE_END

MACHINE_START(MXLADS, "Freescale MXLADS")
    .atag_offset = 0x100,
    .map_io = mx1_map_io,
    .init_early = imx1_init_early,
    .init_irq = mx1_init_irq,
    .handle_irq = imx1_handle_irq,
    .timer = &mx1ads_timer,
    .init_machine = mx1ads_init,
    .restart    = mxc_restart,
MACHINE_END