diff options
Diffstat (limited to 'arch/arm/mach-ux500/cpu-db8500.c')
| -rw-r--r-- | arch/arm/mach-ux500/cpu-db8500.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c index bcdfe6b1d45..50202a163e5 100644 --- a/arch/arm/mach-ux500/cpu-db8500.c +++ b/arch/arm/mach-ux500/cpu-db8500.c @@ -17,6 +17,8 @@ #include <linux/platform_device.h> #include <linux/io.h> #include <linux/mfd/abx500/ab8500.h> +#include <linux/platform_data/usb-musb-ux500.h> +#include <linux/random.h> #include <asm/pmu.h> #include <asm/mach/map.h> @@ -24,7 +26,6 @@ #include <mach/hardware.h> #include <mach/setup.h> #include <mach/devices.h> -#include <linux/platform_data/usb-musb-ux500.h> #include <mach/db8500-regs.h> #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), |