From: Abdellatif El Khlifi <abdellatif.elkhlifi@xxxxxxx> Some Arm heterogeneous System-On-Chips feature remote processors that can be controlled with a reset control register and a reset status register to start or stop the processor. This patchset adds support for these processors by providing the following: 1) A remoteproc driver that retrieves the reset registers addresses from the DT, register a new rproc device with the remoteproc subsystem and provides the start and stop operations for switching on or off the remote processor. The start and stop operations are provided as a data config selected on DT node match. Currently we are providing support for Corstone-1000 External System (Cortex-M3) [1] as a remote processor. The driver can be extended to support other remote processors by adding a data config and custom implementation of the start and stop operations. 2) DT bindings 3) Support control of multiple remote processors at the same time [1]: https://developer.arm.com/documentation/102360/0000/Overview-of-Corstone-1000/Corstone-1000 Cheers, Abdellatif Abdellatif El Khlifi (3): remoteproc: Add Arm remoteproc driver arm64: dts: Add corstone1000 external system device node dt-bindings: remoteproc: Add Arm remoteproc .../bindings/remoteproc/arm,rproc.yaml | 69 +++ MAINTAINERS | 7 + arch/arm64/boot/dts/arm/corstone1000.dtsi | 10 +- drivers/remoteproc/Kconfig | 18 + drivers/remoteproc/Makefile | 1 + drivers/remoteproc/arm_rproc.c | 395 ++++++++++++++++++ 6 files changed, 499 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/remoteproc/arm,rproc.yaml create mode 100644 drivers/remoteproc/arm_rproc.c base-commit: 8b46dc5cfa5ffea279aed0fc05dc4b1c39a51517 -- 2.25.1
