cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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dev-rng.c (1013B)

      1/*
      2 * This file is subject to the terms and conditions of the GNU General Public
      3 * License.  See the file "COPYING" in the main directory of this archive
      4 * for more details.
      5 *
      6 * Copyright (C) 2011 Florian Fainelli <florian@openwrt.org>
      7 */
      8
      9#include <linux/init.h>
     10#include <linux/kernel.h>
     11#include <linux/platform_device.h>
     12#include <bcm63xx_cpu.h>
     13
     14static struct resource rng_resources[] = {
     15	{
     16		.start		= -1, /* filled at runtime */
     17		.end		= -1, /* filled at runtime */
     18		.flags		= IORESOURCE_MEM,
     19	},
     20};
     21
     22static struct platform_device bcm63xx_rng_device = {
     23	.name		= "bcm63xx-rng",
     24	.id		= -1,
     25	.num_resources	= ARRAY_SIZE(rng_resources),
     26	.resource	= rng_resources,
     27};
     28
     29int __init bcm63xx_rng_register(void)
     30{
     31	if (!BCMCPU_IS_6368())
     32		return -ENODEV;
     33
     34	rng_resources[0].start = bcm63xx_regset_address(RSET_RNG);
     35	rng_resources[0].end = rng_resources[0].start;
     36	rng_resources[0].end += RSET_RNG_SIZE - 1;
     37
     38	return platform_device_register(&bcm63xx_rng_device);
     39}
     40arch_initcall(bcm63xx_rng_register);