Add a BRAM-based remoteproc driver and corresponding binding
for AMD soft processors located in programmable logic.
v3:
This version updates the binding to use SoC-specific compatibles with
the fallback form discussed on the thread.
Patch 1, dt-bindings: remoteproc: document AMD BRAM-based rproc
- Reworked the compatible schema to use SoC-specific compatibles.
- Added amd,versal2-bram-rproc to the supported compatible list.
- Used xlnx,zynqmp-bram-rproc as the fallback compatible.
- Updated the example to match the new compatible scheme.
Patch 2, remoteproc: add AMD BRAM-based remote processor driver
- Updated the driver OF match table to bind via the
xlnx,zynqmp-bram-rproc fallback compatible.
v2:
This version pivots the series away from a MicroBlaze-specific
binding and driver shape and instead models a BRAM-based soft-core
processor subsystem more generally.
This follows the upstream feedback that amd,microblaze was too tied
to the processor architecture while also being too generic as a DT
compatible for the hardware interface being described.
Patch 1, dt-bindings: remoteproc: document AMD BRAM-based rproc
- Renamed the binding away from amd,microblaze and reframed it
around a BRAM-based soft-core processor subsystem.
- Dropped the redundant trailing "binding" wording from the patch
subject.
- Rewrote the binding text to describe the hardware rather than the
Linux remoteproc framework.
- Reworked the example to address the original dt_binding_check
complaints about the root node and simple-pm-bus example shape.
- Added a clocks property for the soft-core subsystem.
Patch 2, remoteproc: add AMD BRAM-based remote processor driver
- Renamed the driver away from the MicroBlaze-specific name to match
the BRAM-based binding.
- Added clock handling for the soft-core subsystem and the matching
COMMON_CLK dependency in Kconfig.
- Cleaned up the reset comments and removed the success dev_dbg()
message called out in review.
Ben Levinsky (2):
dt-bindings: remoteproc: document AMD BRAM-based rproc
remoteproc: add AMD BRAM-based remote processor driver
.../bindings/remoteproc/amd,bram-rproc.yaml | 105 ++++++++
MAINTAINERS | 7 +
drivers/remoteproc/Kconfig | 14 +
drivers/remoteproc/Makefile | 1 +
drivers/remoteproc/amd_bram_rproc.c | 243 ++++++++++++++++++
5 files changed, 370 insertions(+)
create mode 100644
Documentation/devicetree/bindings/remoteproc/amd,bram-rproc.yaml
create mode 100644 drivers/remoteproc/amd_bram_rproc.c
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2.34.1
