Bug#985862: linux: Please enable support for NXP/Freescale iMX8

[Salvatore Bonaccorso <carnil@debian.org>]

Hi,

On Mon, Apr 12, 2021 at 02:22:39PM +0100, Wookey wrote:
> Source: linux
> Version: 5.10.26-1
> Followup-For: Bug #985862
> 
> Testing 5.10.26-1 on a Compulab IOT-gateway board (https://www.compulab.com/products/iot-gateways/iot-gate-imx8-industrial-arm-iot-gateway/) revealed that a couple more config options are needed to support it:
>  CONFIG_SERIAL_IMX_CONSOLE=y
>  CONFIG_CLK_IMX8MM=y
> 
> Without these it hangs early in the boot process.
> 
> (Whilst they can be configured as modules this doesn't work
> well. CONFIG_SERIAL_IMX_CONSOLE=m misses quite alot of the boot
> messages and CONFIG_CLK_IMX8MM=m just makes it hang.)
> 
> (Thanks to Vincent for the testing)
> 
> Enabling these in the next upload, whenever that is, would be much appreciated.
> 
> Addendum:
> There are almost certainly some other clocks needed for other hardware, but that
> needs to await testing/feedback from people with access to said hardware.
> 
> Just for future reference: I believe the correspondance of config options to SOC variants is:
>  IMX8MN == i.MX8M Nano
>  IMX8MQ == i.MX8M Quad
> IMX8QXP == i.MX8 QuadXPlus
>  IMX8MP == i.MX8M Plus

Thanks Wookey for the testing feedback. This really starts to become
late for the bullseye release, so we need to be careful enough. We
will see what we can do.

Regards,
Salvatore