diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 0bdcdd96fdc8f9c369ded0b87bacdcf2f70b5ca0..b16834270880f085dc022f4b36ba8db6256e0021 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -49,12 +49,23 @@ static struct map_desc u8500_common_io_desc[] __initdata = {
 	__IO_DEV_DESC(U8500_CLKRST5_BASE, SZ_4K),
 	__IO_DEV_DESC(U8500_CLKRST6_BASE, SZ_4K),
 
-	__IO_DEV_DESC(U8500_PRCMU_BASE, SZ_4K),
 	__IO_DEV_DESC(U8500_GPIO0_BASE, SZ_4K),
 	__IO_DEV_DESC(U8500_GPIO1_BASE, SZ_4K),
 	__IO_DEV_DESC(U8500_GPIO2_BASE, SZ_4K),
 	__IO_DEV_DESC(U8500_GPIO3_BASE, SZ_4K),
+};
+
+/* U8500 IO map specific description */
+static struct map_desc u8500_io_desc[] __initdata = {
+	__IO_DEV_DESC(U8500_PRCMU_BASE, SZ_4K),
 	__IO_DEV_DESC(U8500_PRCMU_TCDM_BASE, SZ_4K),
+
+};
+
+/* U9540 IO map specific description */
+static struct map_desc u9540_io_desc[] __initdata = {
+	__IO_DEV_DESC(U8500_PRCMU_BASE, SZ_4K + SZ_8K),
+	__IO_DEV_DESC(U8500_PRCMU_TCDM_BASE, SZ_4K + SZ_8K),
 };
 
 void __init u8500_map_io(void)
@@ -68,6 +79,11 @@ void __init u8500_map_io(void)
 
 	iotable_init(u8500_common_io_desc, ARRAY_SIZE(u8500_common_io_desc));
 
+	if (cpu_is_u9540())
+		iotable_init(u9540_io_desc, ARRAY_SIZE(u9540_io_desc));
+	else
+		iotable_init(u8500_io_desc, ARRAY_SIZE(u8500_io_desc));
+
 	_PRCMU_BASE = __io_address(U8500_PRCMU_BASE);
 }