[U-Boot] [PATCHv4 3/3] ARM64: poplar: hi3798cv200: u-boot support for Poplar 96Boards

[Tom Rini]

On Thu, May 25, 2017 at 08:38:47PM +0200, Jorge Ramirez wrote:
> On 05/18/2017 12:06 AM, Tom Rini wrote:
> >>>>having platform data.
> >>>No, I think we're going for overkill here by not doing serial_pl01x.c as
> >>>platform data.  ns16550 does platform data for this already.  This
> >>>sounds like the lowest overhead way to get the clock populated and not
> >>>have some DT data that's not going to be accepted upstream.
> >>>
> >>ummmm I am a bit lost at this point, could we recap please?
> >Lets update the recap:
> >- Please re-submit the dts file, now with whatever form is in v4.12-rc1,
> >   saying as such in the commit (if it's just the commit message that
> >   changes, that's fine and great).
> 
> The DTS file in v4.12-rc2 still does NOT contain the usb node.
> 
> ==> Should I then not use the DM on USB so I can avoid DTS changes?

Well, you can either put it in the -u-boot.dtsi file for the board, and
remove that later once it's upstream.

> >- Please update serial_pl01x.c to be able to get the clock via platform
> >   data, update and test your board to confirm it works.
> 
> um, It gets tricky;
> I can not use platform_data since I can not use SERIAL_DM because
> the device tree does have a UART node which gets picked up.

How about disabling the node in -u-boot.dtsi for the board and then you
can use platform data, I think...  But Rob, this loops us back around to
the first problem too, kind of.  Can we really just not make use of
clock-frequency and the kernel just not use it?

-- 
Tom
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