RPMsg in imx7d. Why 0x1FF00000 and Not 0x10000000 in linux,usable-memory (M4 Side)?

[neuberfran]

Hi,

https://godandme.wordpress.com/2017/05/09/playing-with-rpmsg-on-imx7d/

I practice RPMsg on imx7d and I also have this doubt about the link above where the author said he would consult the nxp forum (but he didn't)

Why 0x1FF00000 and Not 0x10000000 in linux,usable-memory (M4 Side)?

https://gist.github.com/neuberfran/9a30b306fc24296d4973d090f22b3d72

[neuberfran]

https://www.youtube.com/watch?v=V06RC2G_3M8

https://www.youtube.com/watch?v=reaRG2VV6Lo

[neuberfran]

@JosephAtNXP Tks. I already knew this document. But, I didn't see anything specifically there that answers my question.

[JosephAtNXP]

Hi,

Thank you for your interest in NXP Semiconductor products,

I found this document for a demo on a customized board that can explain the issue you got.

Regards