linux-kernel - [PATCH 0/2] remoteproc: cv1800b: Add initial support for C906L processor

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Message-Id: <20250608-cv1800-rproc-v1-0-57cf66cdf6a3@pigmoral.tech>
Date: Sun, 08 Jun 2025 10:37:38 +0800
From: Junhui Liu <junhui.liu@...moral.tech>
To: Bjorn Andersson <andersson@...nel.org>, 
 Mathieu Poirier <mathieu.poirier@...aro.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Chen Wang <unicorn_wang@...look.com>, 
 Inochi Amaoto <inochiama@...il.com>, Junhui Liu <junhui.liu@...moral.tech>, 
 Philipp Zabel <p.zabel@...gutronix.de>, 
 Paul Walmsley <paul.walmsley@...ive.com>, 
 Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
 Alexandre Ghiti <alex@...ti.fr>
Cc: linux-remoteproc@...r.kernel.org, devicetree@...r.kernel.org, 
 sophgo@...ts.linux.dev, linux-kernel@...r.kernel.org, 
 linux-riscv@...ts.infradead.org
Subject: [PATCH 0/2] remoteproc: cv1800b: Add initial support for C906L
 processor

This patch series introduces initial support for the C906L remote
processor in the Sophgo CV1800B SoC. The CV1800B SoC integrates multiple
cores, including a main application core running Linux, a C906L core
typically running RTOS, and an 8051 MCU.

The C906L is an asymmetric processor designed to typically run RTOS.
This patch adds the basic infrastructure to support remoteproc
management of the C906L processor, including firmware loading and basic
control (start/stop) from the main Linux core. Mailbox-related
functionality will be added in a separate patch.

The C906L remoteproc relies on the reset controller [1] to function
correctly.

A branch for testing is available at [2].

Link: https://lore.kernel.org/all/20250209122936.2338821-1-inochiama@gmail.com/ [1]
Link: https://github.com/pigmoral/linux/tree/cv1800-rproc-test [2]

---
Junhui Liu (2):
      dt-bindings: remoteproc: Add C906L rproc for Sophgo CV1800B SoC
      drivers: remoteproc: Add C906L controller for Sophgo CV1800B SoC

 .../bindings/remoteproc/sophgo,cv1800b-c906l.yaml  |  68 ++++++
 drivers/remoteproc/Kconfig                         |   9 +
 drivers/remoteproc/Makefile                        |   1 +
 drivers/remoteproc/sophgo_cv1800b_c906l.c          | 233 +++++++++++++++++++++
 4 files changed, 311 insertions(+)
---
base-commit: 8630c59e99363c4b655788fd01134aef9bcd9264
change-id: 20250527-cv1800-rproc-08b3a9d2e461

Best regards,
-- 
Junhui Liu <junhui.liu@...moral.tech>