Subject: Re: [PATCH 3/5] arm64: dts: freescale: imx95-toradex-smarc: move CM7 node to SoC DTSI

From: Laurentiu Mihalcea <[email-masked]>
Date: Mon, 25 May 2026 02:33:02 -0700

On 5/24/2026 7:15 PM, Peng Fan wrote:
> On Fri, May 22, 2026 at 04:18:47AM -0700, Laurentiu Mihalcea wrote:
>> From: Laurentiu Mihalcea <[email-masked]>
>>
>> The CM7 remoteproc configuration is common to multiple MX95-based
>> platforms (e.g. MX95-19x19-EVK, MX95-15x15-FRDM, SMARC-IMX95, etc.).
>> Therefore, move the node to the MX95 SoC DTSI. While at it, split the mbox
>> channels using <>.
>>
>> Signed-off-by: Laurentiu Mihalcea <[email-masked]>
>> ---
>> .../boot/dts/freescale/imx95-toradex-smarc.dtsi    | 14 ++++++--------
>> arch/arm64/boot/dts/freescale/imx95.dtsi           |  7 +++++++
>> 2 files changed, 13 insertions(+), 8 deletions(-)
>>
>> diff --git a/arch/arm64/boot/dts/freescale/imx95-toradex-smarc.dtsi b/arch/arm64/boot/dts/freescale/imx95-toradex-smarc.dtsi
>> index 7d760470201f..c94a63a3bf8f 100644
>> --- a/arch/arm64/boot/dts/freescale/imx95-toradex-smarc.dtsi
>> +++ b/arch/arm64/boot/dts/freescale/imx95-toradex-smarc.dtsi
>> @@ -145,14 +145,6 @@ reg_wifi_en: regulator-wifi-en {
>> 		startup-delay-us = <2000>;
>> 	};
>>
>> -	remoteproc-cm7 {
>> -		compatible = "fsl,imx95-cm7";
>> -		mboxes = <&mu7 0 1 &mu7 1 1 &mu7 3 1>;
>> -		mbox-names = "tx", "rx", "rxdb";
>> -		memory-region = <&vdevbuffer>, <&vdev0vring0>, <&vdev0vring1>,
>> -				<&vdev1vring0>, <&vdev1vring1>, <&rsc_table>, <&m7_reserved>;
>> -	};
>> -
>> 	reserved-memory {
>> 		#address-cells = <2>;
>> 		#size-cells = <2>;
>> @@ -204,6 +196,12 @@ vdevbuffer: vdevbuffer@88020000 {
>> 	};
>> };
>>
>> +&cm7 {
>> +	memory-region = <&vdevbuffer>, <&vdev0vring0>, <&vdev0vring1>,
>> +			<&vdev1vring0>, <&vdev1vring1>, <&rsc_table>, <&m7_reserved>;
>> +	status = "okay";
>> +};
>> +
>> /* SMARC GBE0 */
>> &enetc_port0 {
>> 	pinctrl-names = "default";
>> diff --git a/arch/arm64/boot/dts/freescale/imx95.dtsi b/arch/arm64/boot/dts/freescale/imx95.dtsi
>> index 3e35c956a4d7..f8760ac067fa 100644
>> --- a/arch/arm64/boot/dts/freescale/imx95.dtsi
>> +++ b/arch/arm64/boot/dts/freescale/imx95.dtsi
>> @@ -272,6 +272,13 @@ opp-1000000000 {
>> 		};
>> 	};
>>
>> +	cm7: remoteproc-cm7 {
>> +		compatible = "fsl,imx95-cm7";
>> +		mboxes = <&mu7 0 1>, <&mu7 1 1>, <&mu7 3 1>;
>> +		mbox-names = "tx", "rx", "rxdb";
> 
> Please not put mboxes and mbox-names in dtsi. Some demos may not
> require them and boards may use different MUs.
> 
> Regards
> Peng
> 

Not going to insist on this.
Frank Li, are you ok with dropping this patch and handling this at board/SoM level?