dev-rng.c

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/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 2011 Florian Fainelli <[email protected]>
 */

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <bcm63xx_cpu.h>

static struct resource rng_resources[] = {
    {
        .start      = -1, /* filled at runtime */
        .end        = -1, /* filled at runtime */
        .flags      = IORESOURCE_MEM,
    },
};

static struct platform_device bcm63xx_rng_device = {
    .name       = "bcm63xx-rng",
    .id     = -1,
    .num_resources  = ARRAY_SIZE(rng_resources),
    .resource   = rng_resources,
};

int __init bcm63xx_rng_register(void)
{
    if (!BCMCPU_IS_6368())
        return -ENODEV;

    rng_resources[0].start = bcm63xx_regset_address(RSET_RNG);
    rng_resources[0].end = rng_resources[0].start;
    rng_resources[0].end += RSET_RNG_SIZE - 1;

    return platform_device_register(&bcm63xx_rng_device);
}
arch_initcall(bcm63xx_rng_register);