imx51-dt.c

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/*
 * Copyright 2011 Freescale Semiconductor, Inc. All Rights Reserved.
 * Copyright 2011 Linaro Ltd.
 *
 * The code contained herein is licensed under the GNU General Public
 * License. You may obtain a copy of the GNU General Public License
 * Version 2 or later at the following locations:
 *
 * http://www.opensource.org/licenses/gpl-license.html
 * http://www.gnu.org/copyleft/gpl.html
 */

#include <linux/irq.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <mach/common.h>
#include <mach/mx51.h>

/*
 * Lookup table for attaching a specific name and platform_data pointer to
 * devices as they get created by of_platform_populate().  Ideally this table
 * would not exist, but the current clock implementation depends on some devices
 * having a specific name.
 */
static const struct of_dev_auxdata imx51_auxdata_lookup[] __initconst = {
    OF_DEV_AUXDATA("fsl,imx51-uart", MX51_UART1_BASE_ADDR, "imx21-uart.0", NULL),
    OF_DEV_AUXDATA("fsl,imx51-uart", MX51_UART2_BASE_ADDR, "imx21-uart.1", NULL),
    OF_DEV_AUXDATA("fsl,imx51-uart", MX51_UART3_BASE_ADDR, "imx21-uart.2", NULL),
    OF_DEV_AUXDATA("fsl,imx51-fec", MX51_FEC_BASE_ADDR, "imx27-fec.0", NULL),
    OF_DEV_AUXDATA("fsl,imx51-esdhc", MX51_ESDHC1_BASE_ADDR, "sdhci-esdhc-imx51.0", NULL),
    OF_DEV_AUXDATA("fsl,imx51-esdhc", MX51_ESDHC2_BASE_ADDR, "sdhci-esdhc-imx51.1", NULL),
    OF_DEV_AUXDATA("fsl,imx51-esdhc", MX51_ESDHC3_BASE_ADDR, "sdhci-esdhc-imx51.2", NULL),
    OF_DEV_AUXDATA("fsl,imx51-esdhc", MX51_ESDHC4_BASE_ADDR, "sdhci-esdhc-imx51.3", NULL),
    OF_DEV_AUXDATA("fsl,imx51-ecspi", MX51_ECSPI1_BASE_ADDR, "imx51-ecspi.0", NULL),
    OF_DEV_AUXDATA("fsl,imx51-ecspi", MX51_ECSPI2_BASE_ADDR, "imx51-ecspi.1", NULL),
    OF_DEV_AUXDATA("fsl,imx51-cspi", MX51_CSPI_BASE_ADDR, "imx35-cspi.0", NULL),
    OF_DEV_AUXDATA("fsl,imx51-i2c", MX51_I2C1_BASE_ADDR, "imx-i2c.0", NULL),
    OF_DEV_AUXDATA("fsl,imx51-i2c", MX51_I2C2_BASE_ADDR, "imx-i2c.1", NULL),
    OF_DEV_AUXDATA("fsl,imx51-sdma", MX51_SDMA_BASE_ADDR, "imx35-sdma", NULL),
    OF_DEV_AUXDATA("fsl,imx51-wdt", MX51_WDOG1_BASE_ADDR, "imx2-wdt.0", NULL),
    { /* sentinel */ }
};

static void __init imx51_dt_init(void)
{
    of_platform_populate(NULL, of_default_bus_match_table,
                 imx51_auxdata_lookup, NULL);
}

static void __init imx51_timer_init(void)
{
    mx51_clocks_init_dt();
}

static struct sys_timer imx51_timer = {
    .init = imx51_timer_init,
};

static const char *imx51_dt_board_compat[] __initdata = {
    "fsl,imx51",
    NULL
};

DT_MACHINE_START(IMX51_DT, "Freescale i.MX51 (Device Tree Support)")
    .map_io     = mx51_map_io,
    .init_early = imx51_init_early,
    .init_irq   = mx51_init_irq,
    .handle_irq = imx51_handle_irq,
    .timer      = &imx51_timer,
    .init_machine   = imx51_dt_init,
    .init_late  = imx51_init_late,
    .dt_compat  = imx51_dt_board_compat,
    .restart    = mxc_restart,
MACHINE_END