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/plat/arm/css/common/css_pm.c b/plat/arm/css/common/css_pm.c
index c0c615b..2d0e901 100644
--- a/plat/arm/css/common/css_pm.c
+++ b/plat/arm/css/common/css_pm.c
@@ -51,18 +51,23 @@
* The table must be terminated by a NULL entry.
*/
const unsigned int arm_pm_idle_states[] = {
- /* State-id - 0x01 */
- arm_make_pwrstate_lvl1(ARM_LOCAL_STATE_RUN, ARM_LOCAL_STATE_RET,
- ARM_PWR_LVL0, PSTATE_TYPE_STANDBY),
- /* State-id - 0x02 */
- arm_make_pwrstate_lvl1(ARM_LOCAL_STATE_RUN, ARM_LOCAL_STATE_OFF,
- ARM_PWR_LVL0, PSTATE_TYPE_POWERDOWN),
- /* State-id - 0x22 */
- arm_make_pwrstate_lvl1(ARM_LOCAL_STATE_OFF, ARM_LOCAL_STATE_OFF,
- ARM_PWR_LVL1, PSTATE_TYPE_POWERDOWN),
+ /* State-id - 0x001 */
+ arm_make_pwrstate_lvl2(ARM_LOCAL_STATE_RUN, ARM_LOCAL_STATE_RUN,
+ ARM_LOCAL_STATE_RET, ARM_PWR_LVL0, PSTATE_TYPE_STANDBY),
+ /* State-id - 0x002 */
+ arm_make_pwrstate_lvl2(ARM_LOCAL_STATE_RUN, ARM_LOCAL_STATE_RUN,
+ ARM_LOCAL_STATE_OFF, ARM_PWR_LVL0, PSTATE_TYPE_POWERDOWN),
+ /* State-id - 0x022 */
+ arm_make_pwrstate_lvl2(ARM_LOCAL_STATE_RUN, ARM_LOCAL_STATE_OFF,
+ ARM_LOCAL_STATE_OFF, ARM_PWR_LVL1, PSTATE_TYPE_POWERDOWN),
+#if PLAT_MAX_PWR_LVL > ARM_PWR_LVL1
+ /* State-id - 0x222 */
+ arm_make_pwrstate_lvl2(ARM_LOCAL_STATE_OFF, ARM_LOCAL_STATE_OFF,
+ ARM_LOCAL_STATE_OFF, ARM_PWR_LVL2, PSTATE_TYPE_POWERDOWN),
+#endif
0,
};
-#endif
+#endif /* __ARM_RECOM_STATE_ID_ENC__ */
/*******************************************************************************
* Handler called when a power domain is about to be turned on. The