R5 is included in Xilinx Zynq UltraScale MPSoC so by adding this remotproc driver, we can boot the R5 sub-system in two different configurations - * Split * Lockstep The Xilinx R5 Remoteproc Driver boots the R5's via calls to the Xilinx Platform Management Unit that handles the R5 configuration, memory access and R5 lifecycle management. The interface to this manager is done in this driver via zynqmp_pm_* function calls. v26: - add prepare and unprepare to handle Xilinx platform management's request_node and release node using each core's list of srams that is constructed in each core's zynqmp_r5_probe. - add new field sram to zynqmp_r5_rproc to store each core's srams being used as described in device tree. This helps to reduce unneeded looping of the sram prop in device tree. As now only zynqmp_r5_probe has to parse and validate each core's sram property. The ensuing prepare, unprepare and parse_fw logic are now much simpler. - similarly add 'size' field to struct sram_addr_data to simplify prepare, unprepare and parse_fw. Previous version: https://patchwork.kernel.org/project/linux-remoteproc/list/?series=412083 Ben Levinsky (5): firmware: xilinx: Add ZynqMP firmware ioctl enums for RPU configuration. firmware: xilinx: Add shutdown/wakeup APIs firmware: xilinx: Add RPU configuration APIs dt-bindings: remoteproc: Add documentation for ZynqMP R5 rproc bindings remoteproc: Add initial zynqmp R5 remoteproc driver .../xilinx,zynqmp-r5-remoteproc.yaml | 223 ++++ drivers/firmware/xilinx/zynqmp.c | 96 ++ drivers/remoteproc/Kconfig | 8 + drivers/remoteproc/Makefile | 1 + drivers/remoteproc/zynqmp_r5_remoteproc.c | 954 ++++++++++++++++++ include/linux/firmware/xlnx-zynqmp.h | 64 ++ 6 files changed, 1356 insertions(+) create mode 100644 Documentation/devicetree/bindings/remoteproc/xilinx,zynqmp-r5-remoteproc.yaml create mode 100644 drivers/remoteproc/zynqmp_r5_remoteproc.c -- 2.17.1
