[PATCH 1/2] common: oftree: Pass bootsource and bootsource instance to kernel

[Andrey Smirnov]

On Mon, May 14, 2018 at 12:48 AM, Sascha Hauer <s.hauer at pengutronix.de> wrote:
> Hi Andrey,
>
> On Tue, May 08, 2018 at 02:21:24PM -0700, Andrey Smirnov wrote:
>> Pass barebox-detected bootsource and bootsource instance to Linux to
>> make it availible to Linux userspace. We use put the version under
>> /chosen/bootsource and it can be read under Linux in
>>
>> /sys/firmware/devicetree/base/chosen/bootsource
>
> I like the idea of having the bootsource available in Linux and more
> than once thought about implementing it. However, I don't think it's
> good to put the rather adhoc strings from barebox into the devicetree.
>
> I'd rather have a phandle pointing to the actual device providing the
> bootsource. Something like converting bootsource/bootsource_instance
> into an alias name, lookup that alias in the device tree and create a
> phandle pointing to the node the alias points to aswell. This may be
> more complicated, but this way we do not have to think up any mapping.
>

OK, that does sound like a better idea. I'll give it a try and submit
results in v2.

Thanks,
Andrey Smirnov