[v5,0/5] remoteproc: Add zynqmp_r5 driver

Message

Ben Levinsky June 3, 2020, 2:49 p.m. UTC

Provide basic driver to control Arm R5  co-processor found on
Xilinx ZynqMP UltraScale+ and Versal MPSoC's.

Currently it is able to start, stop and load elf on to the
processor.

The driver was tested on Xilinx ZynqMP and Versal.

v2:
- remove domain struct as per review from Mathieu
v3:
- add xilinx-related platform mgmt fn's instead of wrapping around
  function pointer in xilinx eemi ops struct
- update zynqmp_r5 yaml parsing to not raise warnings for extra
  information in children of R5 node. The warning "node has a unit
  name, but no reg or ranges property" will still be raised though 
  as this particular node is needed to describe the
  '#address-cells' and '#size-cells' information.
v4:
- add default values for enums
- fix formatting as per checkpatch.pl --strict. Note that 1 warning and 1 check
  are still raised as each is due to fixing the warning results in that
particular line going over 80 characters.
- remove warning '/example-0/rpu@ff9a0000/r5@0: 
  node has a unit name, but no reg or ranges property'
  by adding reg to r5 node.
v5:
- update device tree sample and yaml parsing to not raise any warnings
- description for memory-region in yaml parsing
- compatible string in yaml parsing for TCM
- parse_fw change from use of rproc_of_resm_mem_entry_init to rproc_mem_entry_init and use of alloc/release
- var's of type zynqmp_r5_pdata all have same local variable name
- use dev_dbg instead of dev_info


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

 .../remoteproc/xilinx,zynqmp-r5-remoteproc.yaml    | 126 +++
 drivers/firmware/xilinx/zynqmp.c                   | 134 +++
 drivers/remoteproc/Kconfig                         |  10 +
 drivers/remoteproc/Makefile                        |   1 +
 drivers/remoteproc/zynqmp_r5_remoteproc.c          | 902 +++++++++++++++++++++
 include/linux/firmware/xlnx-zynqmp.h               |  75 ++
 6 files changed, 1248 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/remoteproc/xilinx,zynqmp-r5-remoteproc.yaml
 create mode 100644 drivers/remoteproc/zynqmp_r5_remoteproc.c