1 files changed, 3 insertions, 0 deletions

diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 91f028c1264..5c5ad70e48b 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -19,6 +19,7 @@
 #include <linux/mfd/abx500/ab8500.h>
 #include <linux/platform_data/usb-musb-ux500.h>
 #include <linux/platform_data/pinctrl-nomadik.h>
+#include <linux/random.h>
 
 #include <asm/pmu.h>
 #include <asm/mach/map.h>
@@ -187,6 +188,8 @@ static const char *db8500_read_soc_id(void)
 {
         void __iomem *uid = __io_address(U8500_BB_UID_BASE);
 
+        /* Throw these device-specific numbers into the entropy pool */
+        add_device_randomness(uid, 0x14);
         return kasprintf(GFP_KERNEL, "%08x%08x%08x%08x%08x",
                          readl((u32 *)uid+1),
                          readl((u32 *)uid+1), readl((u32 *)uid+2),