linux-kernel - [PATCH v2 0/2] Add Microchip IPC remoteproc support

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Message-ID: <20251121142157.3582463-1-valentina.fernandezalanis@microchip.com>
Date: Fri, 21 Nov 2025 14:21:55 +0000
From: Valentina Fernandez <valentina.fernandezalanis@...rochip.com>
To: <andersson@...nel.org>, <mathieu.poirier@...aro.org>, <robh@...nel.org>,
	<krzk+dt@...nel.org>, <conor+dt@...nel.org>,
	<valentina.fernandezalanis@...rochip.com>
CC: <linux-remoteproc@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: [PATCH v2 0/2] Add Microchip IPC remoteproc support

Hello all,

This series adds support for the Microchip Inter-Processor Communication
(IPC) remoteproc platform driver.

Microchip's family of RISC-V SoCs typically has one or more clusters
that can be configured to run in Asymmetric Multi-Processing (AMP) mode.

The IPC remoteproc platform driver allows for starting and stopping
firmware on the remote cluster(s) and facilitates RPMsg communication.
The remoteproc attach/detach operations are also supported for use cases
where the firmware is loaded by the Hart Software Services
(zero-stage bootloader) before Linux boots.

Error Recovery and Power Management features are not currently
supported in the remoteproc platform driver.

Changes in v2:
 - simplify memory region handling with memory-region-names
 - rename compatible to "microchip,ipc-sbi-remoteproc"
 - rephrase dt binding commit  subject, message and description property
 - drop microchip,auto-boot and microchip,skip-ready-wait properties
 - fix memory-region constraints and add memory-region-names
 - fix binding example and add examples for all use cases
 - Link to v1: https://patchwork.kernel.org/project/linux-remoteproc/patch/20240912170025.455167-6-valentina.fernandezalanis@microchip.com/

Thanks,
Valentina

Valentina Fernandez (2):
  dt-bindings: remoteproc: add Microchip IPC remoteproc
  remoteproc: add support for Microchip IPC remoteproc platform driver

 .../microchip,ipc-sbi-remoteproc.yaml         |  95 ++++
 drivers/remoteproc/Kconfig                    |  12 +
 drivers/remoteproc/Makefile                   |   1 +
 drivers/remoteproc/mchp_ipc_sbi_remoteproc.c  | 465 ++++++++++++++++++
 4 files changed, 573 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/remoteproc/microchip,ipc-sbi-remoteproc.yaml
 create mode 100644 drivers/remoteproc/mchp_ipc_sbi_remoteproc.c

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2.34.1