[PATCH 1/2] dt-bindings: remoteproc: Add C906L rproc for Sophgo CV1800B SoC
Chen Wang
unicorn_wang at outlook.com
Wed Jun 11 02:01:38 PDT 2025
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.
Thanks,
Chen
>
> Signed-off-by: Junhui Liu <junhui.liu at pigmoral.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 at pigmoral.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 at 83f40000 {
> + 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>;
> + };
>
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