CSS: Implement topology support for System power domain
This patch implements the necessary topology changes for supporting
system power domain on CSS platforms. The definition of PLAT_MAX_PWR_LVL and
PLAT_NUM_PWR_DOMAINS macros are removed from arm_def.h and are made platform
specific. In addition, the `arm_power_domain_tree_desc[]` and
`arm_pm_idle_states[]` are modified to support the system power domain
at level 2. With this patch, even though the power management operations
involving the system power domain will not return any error, the platform
layer will silently ignore any operations to the power domain. The actual
power management support for the system power domain will be added later.
Change-Id: I791867eded5156754fe898f9cdc6bba361e5a379
diff --git a/include/plat/arm/common/arm_def.h b/include/plat/arm/common/arm_def.h
index c236970..452c385 100644
--- a/include/plat/arm/common/arm_def.h
+++ b/include/plat/arm/common/arm_def.h
@@ -44,7 +44,8 @@
/* Special value used to verify platform parameters from BL2 to BL3-1 */
#define ARM_BL31_PLAT_PARAM_VAL 0x0f1e2d3c4b5a6978ULL
-#define ARM_CLUSTER_COUNT 2ull
+#define ARM_CLUSTER_COUNT 2
+#define ARM_SYSTEM_COUNT 1
#define ARM_CACHE_WRITEBACK_SHIFT 6
@@ -54,6 +55,7 @@
*/
#define ARM_PWR_LVL0 MPIDR_AFFLVL0
#define ARM_PWR_LVL1 MPIDR_AFFLVL1
+#define ARM_PWR_LVL2 MPIDR_AFFLVL2
/*
* Macros for local power states in ARM platforms encoded by State-ID field
@@ -179,10 +181,6 @@
#define ADDR_SPACE_SIZE (1ull << 32)
-#define PLAT_NUM_PWR_DOMAINS (ARM_CLUSTER_COUNT + \
- PLATFORM_CORE_COUNT)
-#define PLAT_MAX_PWR_LVL ARM_PWR_LVL1
-
/*
* This macro defines the deepest retention state possible. A higher state
* id will represent an invalid or a power down state.