From d5f130930624ceb95cde40de999a880aa2b00493 Mon Sep 17 00:00:00 2001 From: Juan Castillo Date: Tue, 12 Aug 2014 11:17:06 +0100 Subject: 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 --- fdts/fvp-foundation-motherboard.dtsi | 38 ++++++++++++++++++++++++------------ 1 file changed, 25 insertions(+), 13 deletions(-) (limited to 'fdts/fvp-foundation-motherboard.dtsi') 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>; - }; - - reboot@0 { - compatible = "arm,vexpress-reboot"; - arm,vexpress-sysreg,func = <9 0>; - }; + /* + * Not used - Superseded by PSCI sys_poweroff + * + * shutdown@0 { + * compatible = "arm,vexpress-shutdown"; + * arm,vexpress-sysreg,func = <8 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; + * }; + */ + + /* + * Not used - Superseded by PSCI sys_reset + * + * reboot@0 { + * compatible = "arm,vexpress-reboot"; + * arm,vexpress-sysreg,func = 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"; -- cgit v1.2.3