Re: [PATCH v4 5/9] ARM: imx_v6_v7_defconfig: build imx sdma driver as module

[Marek Vasut]

On 9/20/21 4:49 PM, Marcel Ziswiler wrote:
> From: Marcel Ziswiler <marcel.ziswiler@xxxxxxxxxxx>
>
> Build CONFIG_IMX_SDMA as a module to avoid the following boot issue:
>
> [    5.214751] imx-sdma 20ec000.sdma: Direct firmware load for
>   imx/sdma/sdma-imx6q.bin failed with error -2
> [    5.215762] imx-sdma 20ec000.sdma: Falling back to sysfs fallback
>   for: imx/sdma/sdma-imx6q.bin

Isn't there some ROM-side SDMA firmware baked into the MX6 which is used 
as a fallback if loading newer one from filesystem fails ? I suspect the 
default ROM firmware might be buggy.