[PATCH v1 21/26] imx8mn: synchronise device tree with linux

[Marcel Ziswiler]

Hi Adam

On Sun, 2022-07-31 at 11:58 -0500, Adam Ford wrote:
> On Thu, Jul 21, 2022 at 8:44 AM Marcel Ziswiler <marcel at ziswiler.com> wrote:
> > 
> > From: Marcel Ziswiler <marcel.ziswiler at toradex.com>
> > 
> > Synchronise device tree with linux v5.19-rc5.
> > 
> > Signed-off-by: Marcel Ziswiler <marcel.ziswiler at toradex.com>
> 
> For what it's worth to others who may have been impacted,  this patch
> broke my nano booting because the imx8mn.dtsi now has the UART's as
> subnodes to spba1 which wasn't being included in SPL's device tree.
> It's likely to impact others who are booting with DM_SERIAL enabled on
> their Nano.

Sorry about that.

> To fix, I had to add a small line of code to my
> imx8mn-beacon-kit-u-boot.dtsi file with the following:
> 
> &spba1 {
>        u-boot,dm-spl;
> };
> 
> With that, my board boots again.  If anyone else is using DM_SERIAL
> and having issues no longer starting, give that a try.
> 
> Since there are few  nano boards with common -u-boot.dtsi entries, it
> seems like it makes sense to have a common imx8mn-u-boot.dtsi file
> like we do for Mini and Plus.  I'll try to work on that as I have
> time. (hopefully today)

Thanks for your help in correcting this.

Cheers

Marcel