mach-apf9328.c

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/*
 * linux/arch/arm/mach-imx/mach-apf9328.c
 *
 * Copyright (c) 2005-2011 ARMadeus systems <[email protected]>
 *
 * This work is based on mach-scb9328.c which is:
 * Copyright (c) 2004 Sascha Hauer <[email protected]>
 * Copyright (c) 2006-2008 Juergen Beisert <[email protected]>
 *
 * 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/init.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/mtd/physmap.h>
#include <linux/dm9000.h>
#include <linux/gpio.h>
#include <linux/i2c.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 apf9328_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,
};

/*
 * The APF9328 can have up to 32MB NOR Flash
 */
static struct resource flash_resource = {
    .start  = MX1_CS0_PHYS,
    .end    = MX1_CS0_PHYS + SZ_32M - 1,
    .flags  = IORESOURCE_MEM,
};

static struct physmap_flash_data apf9328_flash_data = {
    .width  = 2,
};

static struct platform_device apf9328_flash_device = {
    .name       = "physmap-flash",
    .id     = 0,
    .dev = {
        .platform_data = &apf9328_flash_data,
    },
    .resource = &flash_resource,
    .num_resources = 1,
};

/*
 * APF9328 has a DM9000 Ethernet controller
 */
static struct dm9000_plat_data dm9000_setup = {
    .flags          = DM9000_PLATF_16BITONLY
};

static struct resource dm9000_resources[] = {
    {
        .start  = MX1_CS4_PHYS + 0x00C00000,
        .end    = MX1_CS4_PHYS + 0x00C00001,
        .flags  = IORESOURCE_MEM,
    }, {
        .start  = MX1_CS4_PHYS + 0x00C00002,
        .end    = MX1_CS4_PHYS + 0x00C00003,
        .flags  = IORESOURCE_MEM,
    }, {
        /* irq number is run-time assigned */
        .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
    },
};

static struct platform_device dm9000x_device = {
    .name       = "dm9000",
    .id     = 0,
    .num_resources  = ARRAY_SIZE(dm9000_resources),
    .resource   = dm9000_resources,
    .dev        = {
        .platform_data = &dm9000_setup,
    }
};

static const struct imxuart_platform_data uart1_pdata __initconst = {
    .flags = IMXUART_HAVE_RTSCTS,
};

static const struct imxi2c_platform_data apf9328_i2c_data __initconst = {
    .bitrate = 100000,
};

static struct platform_device *devices[] __initdata = {
    &apf9328_flash_device,
    &dm9000x_device,
};

static void __init apf9328_init(void)
{
    imx1_soc_init();

    mxc_gpio_setup_multiple_pins(apf9328_pins,
            ARRAY_SIZE(apf9328_pins),
            "APF9328");

    imx1_add_imx_uart0(NULL);
    imx1_add_imx_uart1(&uart1_pdata);

    imx1_add_imx_i2c(&apf9328_i2c_data);

    dm9000_resources[2].start = gpio_to_irq(IMX_GPIO_NR(2, 14));
    dm9000_resources[2].end = gpio_to_irq(IMX_GPIO_NR(2, 14));
    platform_add_devices(devices, ARRAY_SIZE(devices));
}

static void __init apf9328_timer_init(void)
{
    mx1_clocks_init(32768);
}

static struct sys_timer apf9328_timer = {
    .init   = apf9328_timer_init,
};

MACHINE_START(APF9328, "Armadeus APF9328")
    /* Maintainer: Gwenhael Goavec-Merou, ARMadeus Systems */
    .map_io       = mx1_map_io,
    .init_early   = imx1_init_early,
    .init_irq     = mx1_init_irq,
    .handle_irq   = imx1_handle_irq,
    .timer        = &apf9328_timer,
    .init_machine = apf9328_init,
    .restart    = mxc_restart,
MACHINE_END