Commit 553da857 authored by Krzysztof Hałasa's avatar Krzysztof Hałasa Committed by Jason Cooper
Browse files

IXP4xx: HW pseudo-random generator is available on IXP45x/46x only. 



Signed-off-by: default avatarKrzysztof Hałasa <khc@pm.waw.pl>
parent 87ba5c6a

drivers/char/hw_random/Kconfig

+3 −3
Original line number Diff line number Diff line
@@ -127,12 +127,12 @@ config HW_RANDOM_VIA 
	  If unsure, say Y.



config HW_RANDOM_IXP4XX

	tristate "Intel IXP4xx NPU HW Random Number Generator support"

	tristate "Intel IXP4xx NPU HW Pseudo-Random Number Generator support"

	depends on HW_RANDOM && ARCH_IXP4XX

	default HW_RANDOM

	---help---

	  This driver provides kernel-side support for the Random

	  Number Generator hardware found on the Intel IXP4xx NPU.

	  This driver provides kernel-side support for the Pseudo-Random

	  Number Generator hardware found on the Intel IXP45x/46x NPU.



	  To compile this driver as a module, choose M here: the

	  module will be called ixp4xx-rng.

drivers/char/hw_random/ixp4xx-rng.c

+4 −1
Original line number Diff line number Diff line
@@ -45,6 +45,9 @@ static int __init ixp4xx_rng_init(void) 
	void __iomem * rng_base;

	int err;



	if (!cpu_is_ixp46x()) /* includes IXP455 */

		return -ENOSYS;



	rng_base = ioremap(0x70002100, 4);

	if (!rng_base)

		return -ENOMEM;
@@ -68,5 +71,5 @@ module_init(ixp4xx_rng_init); 
module_exit(ixp4xx_rng_exit);



MODULE_AUTHOR("Deepak Saxena <dsaxena@plexity.net>");

MODULE_DESCRIPTION("H/W Random Number Generator (RNG) driver for IXP4xx");

MODULE_DESCRIPTION("H/W Pseudo-Random Number Generator (RNG) driver for IXP45x/46x");

MODULE_LICENSE("GPL");