platform-mxc_rnga.c

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/*
 * Copyright (C) 2010 Pengutronix
 * Uwe Kleine-Koenig <[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 <mach/hardware.h>
#include <mach/devices-common.h>

struct imx_mxc_rnga_data {
    resource_size_t iobase;
};

#define imx_mxc_rnga_data_entry_single(soc)             \
    {                               \
        .iobase = soc ## _RNGA_BASE_ADDR,           \
    }

#ifdef CONFIG_SOC_IMX31
static const struct imx_mxc_rnga_data imx31_mxc_rnga_data __initconst =
    imx_mxc_rnga_data_entry_single(MX31);
#endif /* ifdef CONFIG_SOC_IMX31 */

static struct platform_device *__init imx_add_mxc_rnga(
        const struct imx_mxc_rnga_data *data)
{
    struct resource res[] = {
        {
            .start = data->iobase,
            .end = data->iobase + SZ_16K - 1,
            .flags = IORESOURCE_MEM,
        },
    };
    return imx_add_platform_device("mxc_rnga", -1,
            res, ARRAY_SIZE(res), NULL, 0);
}

static int __init imxXX_add_mxc_rnga(void)
{
    struct platform_device *ret;

#if defined(CONFIG_SOC_IMX31)
    if (cpu_is_mx31())
        ret = imx_add_mxc_rnga(&imx31_mxc_rnga_data);
    else
#endif /* if defined(CONFIG_SOC_IMX31) */
        ret = ERR_PTR(-ENODEV);

    if (IS_ERR(ret))
        return PTR_ERR(ret);

    return 0;
}
arch_initcall(imxXX_add_mxc_rnga);