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Diffstat (limited to 'arch/arm/mach-omap2/id.c')
-rw-r--r--arch/arm/mach-omap2/id.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 0289adcb6ef..9428c5f9d4f 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -18,6 +18,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/io.h>
+#include <linux/random.h>
#include <linux/slab.h>
#ifdef CONFIG_SOC_BUS
@@ -130,6 +131,17 @@ void omap_get_die_id(struct omap_die_id *odi)
odi->id_3 = read_tap_reg(OMAP_TAP_DIE_ID_3);
}
+static int __init omap_feed_randpool(void)
+{
+ struct omap_die_id odi;
+
+ /* Throw the die ID into the entropy pool at boot */
+ omap_get_die_id(&odi);
+ add_device_randomness(&odi, sizeof(odi));
+ return 0;
+}
+omap_device_initcall(omap_feed_randpool);
+
void __init omap2xxx_check_revision(void)
{
int i, j;
@@ -576,8 +588,8 @@ void __init omap5xxx_check_revision(void)
case 0xb942:
switch (rev) {
case 0:
- omap_revision = OMAP5430_REV_ES1_0;
- break;
+ /* No support for ES1.0 Test chip */
+ BUG();
case 1:
default:
omap_revision = OMAP5430_REV_ES2_0;
@@ -587,8 +599,8 @@ void __init omap5xxx_check_revision(void)
case 0xb998:
switch (rev) {
case 0:
- omap_revision = OMAP5432_REV_ES1_0;
- break;
+ /* No support for ES1.0 Test chip */
+ BUG();
case 1:
default:
omap_revision = OMAP5432_REV_ES2_0;