Add support for PSCI SYSTEM_OFF and SYSTEM_RESET APIs
This patch adds support for SYSTEM_OFF and SYSTEM_RESET PSCI
operations. A platform should export handlers to complete the
requested operation. The FVP port exports fvp_system_off() and
fvp_system_reset() as an example.
If the SPD provides a power management hook for system off and
system reset, then the SPD is notified about the corresponding
operation so it can do some bookkeeping. The TSPD exports
tspd_system_off() and tspd_system_reset() for that purpose.
Versatile Express shutdown and reset methods have been removed
from the FDT as new PSCI sys_poweroff and sys_reset services
have been added. For those kernels that do not support yet these
PSCI services (i.e. GICv3 kernel), the original dtsi files have
been renamed to *-no_psci.dtsi.
Fixes ARM-software/tf-issues#218
Change-Id: Ic8a3bf801db979099ab7029162af041c4e8330c8
diff --git a/services/std_svc/psci/psci_main.c b/services/std_svc/psci/psci_main.c
index 21968d9..0ffa5d7 100644
--- a/services/std_svc/psci/psci_main.c
+++ b/services/std_svc/psci/psci_main.c
@@ -250,6 +250,14 @@
case PSCI_MIG_INFO_UP_CPU_AARCH32:
SMC_RET1(handle, psci_migrate_info_up_cpu());
+ case PSCI_SYSTEM_OFF:
+ psci_system_off();
+ /* We should never return from psci_system_off() */
+
+ case PSCI_SYSTEM_RESET:
+ psci_system_reset();
+ /* We should never return from psci_system_reset() */
+
default:
break;
}