On Wed, Jun 5, 2019 at 10:32 PM Robin Gong <yibin.gong@xxxxxxx> wrote: > > So that's another issue that I can't reproduce. How do you switch between sdma ROM/RAM firmware load? Just keep or remove > sdma-imx6q.bin in your ramfs(seems you used)? I add the sdma firmware to the kernel image, by adding the following to the defconfig: +CONFIG_EXTRA_FIRMWARE="imx/sdma/sdma-imx6q.bin" +CONFIG_EXTRA_FIRMWARE_DIR="firmware/" If you are unable to reproduce this, I will have to do the bisect myself to find the bad commit. Please bear with me, this is very time consuming.