core: arm: sm: add psci power state macros

Add PSCI_POWER_STATE_X macros

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>

core/arch/arm/include/sm/psci.h

@@ -32,6 +32,17 @@
 #define PSCI_AFFINITY_LEVEL_OFF		1
 #define PSCI_AFFINITY_LEVEL_ON_PENDING	2
 
+#define PSCI_POWER_STATE_ID_MASK	0xffff
+#define PSCI_POWER_STATE_ID_SHIFT	0
+#define PSCI_POWER_STATE_TYPE_SHIFT	16
+#define PSCI_POWER_STATE_TYPE_MASK	BIT32(PSCI_POWER_STATE_TYPE_SHIFT)
+#define PSCI_POWER_STATE_AFFL_SHIFT	24
+#define PSCI_POWER_STATE_AFFL_MASK	SHIFT_U32(0x3, \
+						  PSCI_POWER_STATE_AFFL_SHIFT)
+
+#define PSCI_POWER_STATE_TYPE_STANDBY		0
+#define PSCI_POWER_STATE_TYPE_POWER_DOWN	1
+
 #define PSCI_RET_SUCCESS		(0)
 #define PSCI_RET_NOT_SUPPORTED		(-1)
 #define PSCI_RET_INVALID_PARAMETERS	(-2)