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path: root/drivers/char/hw_random/ixp4xx-rng.c
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Diffstat (limited to 'drivers/char/hw_random/ixp4xx-rng.c')
-rw-r--r--drivers/char/hw_random/ixp4xx-rng.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/char/hw_random/ixp4xx-rng.c b/drivers/char/hw_random/ixp4xx-rng.c
index bab43ca32ac..beec1627db3 100644
--- a/drivers/char/hw_random/ixp4xx-rng.c
+++ b/drivers/char/hw_random/ixp4xx-rng.c
@@ -23,7 +23,7 @@
#include <linux/hw_random.h>
#include <asm/io.h>
-#include <asm/hardware.h>
+#include <mach/hardware.h>
static int ixp4xx_rng_data_read(struct hwrng *rng, u32 *buffer)
@@ -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");