AnsweredAssumed Answered

Expand imx6q pcie memory space

Question asked by Şükrü Bahadır Arslan on Jan 22, 2018
Latest reply on Jan 23, 2018 by igorpadykov


I am using imx6q based board, and I am trying to communicate with custom board using pcie.

My custom board request 64MB memory space but imx6q have 15MB memory space. So In dmesg, I saw kernel messages like "BAR 0: no space for [mem size 0x04000000 64bit] ".


When I change the im6q with imx7d which have 255MB pcie memory space, memory assignment stage is successful.

So I wonder that, in imx6q, can I expand pcie memory space for communicate with my custom board ? or do you have any advice ?


Thank for your response!