From: khc@pm.waw.pl (Krzysztof Halasa)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/10] IXP4xx: HW pseudo-random generator is available on IXP45x/46x only.
Date: Thu, 20 Sep 2012 22:17:52 +0200 [thread overview]
Message-ID: <m3lig430un.fsf@intrepid.localdomain> (raw)
In-Reply-To: <m3txus4hgm.fsf@intrepid.localdomain> (Krzysztof Halasa's message of "Thu, 20 Sep 2012 21:33:45 +0200")
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -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.
--- a/drivers/char/hw_random/ixp4xx-rng.c
+++ b/drivers/char/hw_random/ixp4xx-rng.c
@@ -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");
--
Krzysztof Halasa
next prev parent reply other threads:[~2012-09-20 20:17 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-20 19:33 My collection of IXP4xx patches for the next window Krzysztof Halasa
2012-09-20 20:16 ` [PATCH 1/10] IXP4xx: Fix Goramo MultiLink platform compilation Krzysztof Halasa
2012-09-20 20:16 ` [PATCH 2/10] IXP4xx: Fix off-by-one bug in Goramo MultiLink platform Krzysztof Halasa
2012-09-20 20:17 ` Krzysztof Halasa [this message]
2012-09-20 20:18 ` [PATCH 4/10] IXP4xx: ixp4xx_crypto driver requires Queue Manager and NPE drivers Krzysztof Halasa
2012-09-20 20:19 ` [PATCH 5/10] ARM: fix DMA-bounce code to allow sync from_device and to_device with bidirectional mappings Krzysztof Halasa
2012-09-20 20:19 ` [PATCH 6/10] IXP4xx: Remove time limit for PCI TRDY to enable use of slow devices Krzysztof Halasa
2012-09-20 20:19 ` [PATCH 7/10] WAN: Remove redundant HDLC info printed by IXP4xx HSS driver Krzysztof Halasa
2012-09-20 20:21 ` [PATCH 8/10] IXP4xx crypto: MOD_AES{128, 192, 256} already include key size Krzysztof Halasa
2012-09-20 20:21 ` [PATCH 9/10] IXP4xx: Always ioremap() Queue Manager MMIO region at boot Krzysztof Halasa
2012-09-20 20:21 ` [PATCH 10/10] IXP4xx: map CPU config registers within VMALLOC region Krzysztof Halasa
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