topic Re: i.MX 8MM-How to configure the device trees when run RPMsg in i.MX Processors

i.MX 8MM-How to configure the device trees when run RPMsg

danielc — Tue, 10 Sep 2019 09:35:39 GMT

Hello sir,

Customer uses fsl-imx8mm-evk-m4.dtb to run the RPMsg. but the Camera can't work with the m4.dtb.

In the fsl-imx8mm-evk-m4.dts, there is comment mentions that some IPs was disable because maybe used by M4.

Is there any user guide can help customer to configure the Cortex-A device tree that maybe some peripherials are dedicated for Cortex-M4 or other? Thanks.

Regards,

Daniel

Re: i.MX 8MM-How to configure the device trees when run RPMsg

igorpadykov — Wed, 11 Sep 2019 00:35:36 GMT

Hi Daniel

one can look at examples in SDK_2.5.0_EVK-MIMX8M Mini Welcome | MCUXpresso SDK Builder

and general documentation

OpenAMP Porting GuideLine · OpenAMP/open-amp Wiki · GitHub

GitHub - NXPmicro/rpmsg-lite: RPMsg implementation for small MCUs

Best regards
igor
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Re: i.MX 8MM-How to configure the device trees when run RPMsg

danielc — Thu, 12 Sep 2019 07:22:28 GMT

Hi Igorpadykov,

Thank you for your information,

customer makes their own i.MX8MM SoM board that use same UART1 for Cypress-CYW43455 (WiFI/BT).

the CYW43455 also not work with fsl-imx8mm-evk-m4.dtb. but the UART1 does not be disable in the fsl-imx8mm-evk-m4.dts. Is anything we need to check? Thanks.

Regards,

Daniel

Re: i.MX 8MM-How to configure the device trees when run RPMsg

igorpadykov — Thu, 12 Sep 2019 08:05:39 GMT

Hi Daniel

please check similar issue

imx8m mini uart4

Best regards
igor

Re: i.MX 8MM-How to configure the device trees when run RPMsg

danielc — Thu, 12 Sep 2019 09:22:51 GMT

Hi Igorpadykov,

It seems they are different. the BT uses UART1 not UART4.

BTW,

Is there any IP used when run RPMsg? Thanks.

Regards,

Daniel

Re: i.MX 8MM-How to configure the device trees when run RPMsg

igorpadykov — Thu, 12 Sep 2019 10:12:05 GMT

Hi Daniel

NXP has special service for help with software customizations :

Commercial Support and Engineering Services | NXP

Best regards
igor