linux-kernel - Re: [PATCH 1/2] dt-bindings: remoteproc: Add C906L rproc for Sophgo CV1800B SoC

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <1847f2ae7cdd9de8.639eddc348629bd0.78776f2b552d9090@Jude-Air.local>
Date: Wed, 11 Jun 2025 09:23:31 +0000
From: "Junhui Liu" <junhui.liu@...moral.tech>
To: "Chen Wang" <unicorn_wang@...look.com>, 
	"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>, 
	"Inochi Amaoto" <inochiama@...il.com>, 
	"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: Re: [PATCH 1/2] dt-bindings: remoteproc: Add C906L rproc for Sophgo
	 CV1800B SoC



On 11/06/2025 17:01, Chen Wang wrote:
> On 2025/6/8 10:37, Junhui Liu wrote:
>> Add C906L remote processor for CV1800B SoC, which is an asymmetric
>> processor typically running RTOS.
> 
> In the cover email, I saw that remoteproc also uses mailbox as the 
> underlying communication. So I guess some mailbox-related properties 
> will need to be added to the bindings? I suggest that these should be 
> determined before officially merging this bindings.

Yes, thanks for your suggestion. I will try to add mailbox-related
properties and functions in the bindings and driver in v2, since the
mailbox driver has been merged. At the very least, I will ensure the
mailbox-related properties are included in the bindings.

> 
> Thanks，
> 
> Chen
> 
>>
>> Signed-off-by: Junhui Liu <junhui.liu@...moral.tech>
>> ---
>>   .../bindings/remoteproc/sophgo,cv1800b-c906l.yaml  | 68 ++++++++++++++++++++++
>>   1 file changed, 68 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/remoteproc/sophgo,cv1800b-c906l.yaml b/Documentation/devicetree/bindings/remoteproc/sophgo,cv1800b-c906l.yaml
>> new file mode 100644
>> index 0000000000000000000000000000000000000000..455e957dec01c16424c49ebe5ef451883b0c3d4a
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/remoteproc/sophgo,cv1800b-c906l.yaml
>> @@ -0,0 +1,68 @@
>> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/remoteproc/sophgo,cv1800b-c906l.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Sophgo C906L remote processor controller for CV1800B SoC
>> +
>> +maintainers:
>> +  - Junhui Liu <junhui.liu@...moral.tech>
>> +
>> +description:
>> +  Document the bindings for the C906L remoteproc component that loads and boots
>> +  firmwares on the CV1800B SoC.
>> +
>> +properties:
>> +  compatible:
>> +    const: sophgo,cv1800b-c906l
>> +
>> +  firmware-name:
>> +    $ref: /schemas/types.yaml#/definitions/string
>> +    description:
>> +      The name of the firmware file to load for this remote processor, relative
>> +      to the firmware search path (typically /lib/firmware/).
>> +
>> +  memory-region:
>> +    description:
>> +      Phandle to a reserved memory region that is used to load the firmware for
>> +      this remote processor. The remote processor will use this memory region
>> +      as its execution memory.
>> +
>> +  resets:
>> +    maxItems: 1
>> +
>> +  sophgo,syscon:
>> +    $ref: /schemas/types.yaml#/definitions/phandle
>> +    description:
>> +      A phandle to the SEC_SYS region, used for configuration of the remote processor.
>> +
>> +required:
>> +  - compatible
>> +  - firmware-name
>> +  - memory-region
>> +  - resets
>> +  - sophgo,syscon
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> +  - |
>> +    reserved-memory {
>> +        #address-cells = <1>;
>> +        #size-cells = <1>;
>> +        ranges;
>> +
>> +        c906l_mem: region@...40000 {
>> +            reg = <0x83f40000 0xc0000>;
>> +            no-map;
>> +        };
>> +    };
>> +
>> +    c906l-rproc {
>> +        compatible = "sophgo,cv1800b-c906l";
>> +        firmware-name = "c906l-firmware.elf";
>> +        memory-region = <&c906l_mem>;
>> +        resets = <&rst 294>;
>> +        sophgo,syscon = <&sec_sys>;
>> +    };
>>

-- 
Best regards,
Junhui Liu