[PATCH v2 4/5] arm: dts: k3-am62p5-sk-u-boot: enable USB0 for USB DFU boot

[Siddharth Vadapalli]

On Wed, Dec 18, 2024 at 04:05:47PM +0200, Roger Quadros wrote:

Hello Roger,

> Hi Siddharth,
> 
> On 18/12/2024 14:45, Siddharth Vadapalli wrote:
> > Enable USB0 instance of the USB controller for USB DFU boot functionality
> > which requires the "bootph-all" property in order to have USB enabled at
> > all stages of the USB DFU boot.
> > 
> > Signed-off-by: Siddharth Vadapalli <s-vadapalli at ti.com>
> > Reviewed-by: Mattijs Korpershoek <mkorpershoek at baylibre.com>
> > ---
> > v1:
> > https://patchwork.ozlabs.org/project/uboot/patch/20241217131658.2920799-5-s-vadapalli@ti.com/
> > Changes since v1:
> > - Collected Reviewed-by tag.
> > 
> >  arch/arm/dts/k3-am62p5-sk-u-boot.dtsi | 10 ++++++++++
> >  1 file changed, 10 insertions(+)
> > 
> > diff --git a/arch/arm/dts/k3-am62p5-sk-u-boot.dtsi b/arch/arm/dts/k3-am62p5-sk-u-boot.dtsi
> > index cf087c6e343..c2091fc1a51 100644
> > --- a/arch/arm/dts/k3-am62p5-sk-u-boot.dtsi
> > +++ b/arch/arm/dts/k3-am62p5-sk-u-boot.dtsi
> > @@ -16,3 +16,13 @@
> >  &dmsc {
> >  	bootph-pre-ram;
> >  };
> > +
> > +/* Required for USB DFU boot */
> > +&usbss0 {
> > +	status = "okay";
> > +};
> 
> This should come via upstream DT sync?
> 
> > +
> > +/* Required for USB DFU boot */
> > +&usb0 {
> > +	bootph-all;
> > +};
> 
> This as well? But I don't see it upstream. Do you have a patch for upstream DT?

I haven't posted the patch for Linux device-tree yet. I will post it and
it can be synced with U-Boot later. In order to avoid blocking USB DFU
support on the Linux device-tree sync, I have posted this patch for this
series to be complete in terms of functionality. If Linux device-tree
based sync is the only way to enable this, then the following patch in
this series for documentation should also be dropped since the feature
will not be functional without the changes made by this patch.

Please let me know if this patch can be merged on the condition that I
post the patch for making the same set of changes in the Linux
device-tree as well.

Regards,
Siddharth.