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 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