Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

[platform/adaptation/renesas_rcar/renesas_kernel.git] / arch / arm / mach-omap2 / id.c

diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 4f8f1cb..9428c5f 100644 (file)
--- 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;