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 
14 static struct resource rng_resources[] = {
15 	{
16 		.start		= -1, /* filled at runtime */
17 		.end		= -1, /* filled at runtime */
18 		.flags		= IORESOURCE_MEM,
19 	},
20 };
21 
22 static 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 
bcm63xx_rng_register(void)29 int __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 }
40 arch_initcall(bcm63xx_rng_register);
41