diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c index bcdfe6b1d453..50202a163e5d 100644 --- a/arch/arm/mach-ux500/cpu-db8500.c +++ b/arch/arm/mach-ux500/cpu-db8500.c @@ -17,6 +17,8 @@ #include #include #include +#include +#include #include #include @@ -24,7 +26,6 @@ #include #include #include -#include #include #include "devices-db8500.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),