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/fdts/fvp-foundation-motherboard.dtsi b/fdts/fvp-foundation-motherboard.dtsi
index fd41c8a..9d29e48 100644
--- a/fdts/fvp-foundation-motherboard.dtsi
+++ b/fdts/fvp-foundation-motherboard.dtsi
@@ -169,25 +169,37 @@
compatible = "arm,vexpress,config-bus", "simple-bus";
arm,vexpress,config-bridge = <&v2m_sysreg>;
- reset@0 {
- compatible = "arm,vexpress-reset";
- arm,vexpress-sysreg,func = <5 0>;
- };
+ /*
+ * Not supported in FVP models
+ *
+ * reset@0 {
+ * compatible = "arm,vexpress-reset";
+ * arm,vexpress-sysreg,func = <5 0>;
+ * };
+ */
muxfpga@0 {
compatible = "arm,vexpress-muxfpga";
arm,vexpress-sysreg,func = <7 0>;
};
- shutdown@0 {
- compatible = "arm,vexpress-shutdown";
- arm,vexpress-sysreg,func = <8 0>;
- };
+ /*
+ * Not used - Superseded by PSCI sys_poweroff
+ *
+ * shutdown@0 {
+ * compatible = "arm,vexpress-shutdown";
+ * arm,vexpress-sysreg,func = <8 0>;
+ * };
+ */
- reboot@0 {
- compatible = "arm,vexpress-reboot";
- arm,vexpress-sysreg,func = <9 0>;
- };
+ /*
+ * Not used - Superseded by PSCI sys_reset
+ *
+ * reboot@0 {
+ * compatible = "arm,vexpress-reboot";
+ * arm,vexpress-sysreg,func = <9 0>;
+ * };
+ */
dvimode@0 {
compatible = "arm,vexpress-dvimode";