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kernel/linux-imx6_3.14.28/arch/mips/bcm63xx/dev-rng.c 1013 Bytes
6b13f685e   김민수   BSP 최초 추가
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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 <florian@openwrt.org>
   */
  
  #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);