diff --git a/include/arch/aarch32/arch.h b/include/arch/aarch32/arch.h
index 8492b3e..a11d55e 100644
--- a/include/arch/aarch32/arch.h
+++ b/include/arch/aarch32/arch.h
@@ -701,4 +701,14 @@
 #define AMEVTYPER1E	p15, 0, c13, c15, 6
 #define AMEVTYPER1F	p15, 0, c13, c15, 7
 
+/*******************************************************************************
+ * Definitions for DynamicIQ Shared Unit registers
+ ******************************************************************************/
+#define CLUSTERPWRDN	p15, 0, c15, c3, 6
+
+/* CLUSTERPWRDN register definitions */
+#define DSU_CLUSTER_PWR_OFF	0
+#define DSU_CLUSTER_PWR_ON	1
+#define DSU_CLUSTER_PWR_MASK	U(1)
+
 #endif /* ARCH_H */
diff --git a/include/arch/aarch32/arch_helpers.h b/include/arch/aarch32/arch_helpers.h
index a90b2a5..eed56e2 100644
--- a/include/arch/aarch32/arch_helpers.h
+++ b/include/arch/aarch32/arch_helpers.h
@@ -336,6 +336,11 @@
 DEFINE_DCOP_PARAM_FUNC(cvac, DCCMVAC)
 #endif
 
+/*
+ * DynamIQ Shared Unit power management
+ */
+DEFINE_COPROCR_RW_FUNCS(clusterpwrdn, CLUSTERPWRDN)
+
 /* Previously defined accessor functions with incomplete register names  */
 #define dsb()			dsbsy()
 #define dmb()			dmbsy()
diff --git a/include/arch/aarch64/arch.h b/include/arch/aarch64/arch.h
index 19dd8c5..e45a594 100644
--- a/include/arch/aarch64/arch.h
+++ b/include/arch/aarch64/arch.h
@@ -947,4 +947,14 @@
 #define RGSR_EL1		S3_0_C1_C0_5
 #define GCR_EL1			S3_0_C1_C0_6
 
+/*******************************************************************************
+ * Definitions for DynamicIQ Shared Unit registers
+ ******************************************************************************/
+#define CLUSTERPWRDN_EL1	S3_0_c15_c3_6
+
+/* CLUSTERPWRDN_EL1 register definitions */
+#define DSU_CLUSTER_PWR_OFF	0
+#define DSU_CLUSTER_PWR_ON	1
+#define DSU_CLUSTER_PWR_MASK	U(1)
+
 #endif /* ARCH_H */
diff --git a/include/arch/aarch64/arch_helpers.h b/include/arch/aarch64/arch_helpers.h
index 669a140..9cd1ae5 100644
--- a/include/arch/aarch64/arch_helpers.h
+++ b/include/arch/aarch64/arch_helpers.h
@@ -520,6 +520,9 @@
 DEFINE_RENAME_SYSREG_RW_FUNCS(rgsr_el1, RGSR_EL1)
 DEFINE_RENAME_SYSREG_RW_FUNCS(gcr_el1, GCR_EL1)
 
+/* DynamIQ Shared Unit power management */
+DEFINE_RENAME_SYSREG_RW_FUNCS(clusterpwrdn_el1, CLUSTERPWRDN_EL1)
+
 #define IS_IN_EL(x) \
 	(GET_EL(read_CurrentEl()) == MODE_EL##x)
 
@@ -582,4 +585,7 @@
 #define read_cpacr()		read_cpacr_el1()
 #define write_cpacr(_v)		write_cpacr_el1(_v)
 
+#define read_clusterpwrdn()	read_clusterpwrdn_el1()
+#define write_clusterpwrdn(_v)	write_clusterpwrdn_el1(_v)
+
 #endif /* ARCH_HELPERS_H */