diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 391d329..0b3ebbf 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -104,14 +104,18 @@
 
 static const char *db8500_read_soc_id(void)
 {
-	void __iomem *uid = __io_address(U8500_BB_UID_BASE);
+	void __iomem *uid;
 
+	uid = ioremap(U8500_BB_UID_BASE, 0x20);
+	if (!uid)
+		return NULL;
 	/* 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+0),
 			 readl((u32 *)uid+1), readl((u32 *)uid+2),
 			 readl((u32 *)uid+3), readl((u32 *)uid+4));
+	iounmap(uid);
 }
 
 static struct device * __init db8500_soc_device_init(void)