Provide a hint to power controller for DSU cluster power down
By writing 0 to CLUSTERPWRDN DSU register bit 0, we send an
advisory to the power controller that cluster power is not required
when all cores are powered down.
The AArch32 CLUSTERPWRDN register is architecturally mapped to the
AArch64 CLUSTERPWRDN_EL1 register
Change-Id: Ie6e67c1c7d811fa25c51e2e405ca7f59bd20c81b
Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
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 */