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/include/bl31/services/psci.h b/include/bl31/services/psci.h
index 77f406d..6512dfb 100644
--- a/include/bl31/services/psci.h
+++ b/include/bl31/services/psci.h
@@ -52,10 +52,9 @@
#define PSCI_SYSTEM_RESET 0x84000009
/*
- * Number of PSCI calls (above) implemented. System off and reset aren't
- * implemented as yet
+ * Number of PSCI calls (above) implemented
*/
-#define PSCI_NUM_CALLS 13
+#define PSCI_NUM_CALLS 15
/*******************************************************************************
* PSCI Migrate and friends
@@ -154,6 +153,8 @@
int (*affinst_suspend_finish)(unsigned long,
unsigned int,
unsigned int);
+ void (*system_off)(void) __dead2;
+ void (*system_reset)(void) __dead2;
} plat_pm_ops_t;
/*******************************************************************************
@@ -170,6 +171,8 @@
void (*svc_suspend_finish)(uint64_t suspend_level);
void (*svc_migrate)(uint64_t __unused1, uint64_t __unused2);
int32_t (*svc_migrate_info)(uint64_t *__unused);
+ void (*svc_system_off)(void);
+ void (*svc_system_reset)(void);
} spd_pm_ops_t;
/*******************************************************************************
@@ -182,8 +185,6 @@
int psci_migrate(unsigned int);
unsigned int psci_migrate_info_type(void);
unsigned long psci_migrate_info_up_cpu(void);
-void psci_system_off(void);
-void psci_system_reset(void);
int psci_cpu_on(unsigned long,
unsigned long,
unsigned long);