On 16:19-20240131, Andrew Davis wrote: > Hello all, > > While PCSI normally handles reboot for K3, this is an available > fallback in case PCSI reboot fails. This driver is registered > with low priority as we want PSCI to remain the main way these > devices are rebooted. > > The important part is the binding/DT changes. Currently in > U-Boot (which use the Linux device trees) we may not have > PSCI available yet (pre TF-A) and so we need this node > to correctly reboot. Adding this node in U-Boot is one of > the last remaining deltas between the two project DT files. > > Thanks, > Andrew > > Andrew Davis (12): > dt-bindings: power: reset: Document ti,sci-reboot compatible > dt-bindings: arm: keystone: ti-sci: Add reboot-controller child node > power: reset: Add TI-SCI reboot driver > arm64: dts: ti: k3-am64: Add reboot-controller node > arm64: dts: ti: k3-am62: Add reboot-controller node > arm64: dts: ti: k3-am62a: Add reboot-controller node > arm64: dts: ti: k3-am62p: Add reboot-controller node > arm64: dts: ti: k3-am65: Add reboot-controller node > arm64: dts: ti: k3-j7200: Add reboot-controller node > arm64: dts: ti: k3-j721e: Add reboot-controller node > arm64: dts: ti: k3-j721s2: Add reboot-controller node > arm64: dts: ti: k3-j784s4: Add reboot-controller node Maybe after the driver has been accepted, a defconfig patch(module) might be useful? > > .../bindings/arm/keystone/ti,sci.yaml | 8 +++ > .../bindings/power/reset/ti,sci-reboot.yaml | 33 ++++++++++ > MAINTAINERS | 2 + > arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 5 ++ > arch/arm64/boot/dts/ti/k3-am62a-main.dtsi | 4 ++ > arch/arm64/boot/dts/ti/k3-am62p-main.dtsi | 5 ++ > arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 5 ++ > arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi | 4 ++ > .../boot/dts/ti/k3-j7200-mcu-wakeup.dtsi | 4 ++ > .../boot/dts/ti/k3-j721e-mcu-wakeup.dtsi | 4 ++ > .../boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi | 4 ++ > .../boot/dts/ti/k3-j784s4-mcu-wakeup.dtsi | 5 ++ > drivers/power/reset/Kconfig | 7 +++ > drivers/power/reset/Makefile | 1 + > drivers/power/reset/ti-sci-reboot.c | 63 +++++++++++++++++++ > 15 files changed, 154 insertions(+) > create mode 100644 Documentation/devicetree/bindings/power/reset/ti,sci-reboot.yaml > create mode 100644 drivers/power/reset/ti-sci-reboot.c -- Regards, Nishanth Menon Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D
