[PATCH] arm: dts: bcm283x: Allow UARTs to work before relocation

[Simon Glass]

Hi Tom,

On Thu, 2 Jan 2020 at 16:11, Tom Rini <trini at konsulko.com> wrote:
>
> On Tue, Dec 31, 2019 at 02:28:19PM -0700, Simon Glass wrote:
> > Hi Matthias,
> >
> > On Tue, 10 Dec 2019 at 02:43, Matthias Brugger <mbrugger at suse.com> wrote:
> > >
> > > Hi Simon,
> > >
> > > On 02/12/2019 16:45, Tom Rini wrote:
> > > > On Sun, Dec 01, 2019 at 07:33:56PM -0700, Simon Glass wrote:
> > > >
> > > >> At present the pinctrl nodes are not enabled in pre-relocation U-Boot so
> > > >> the UARTs do not correctly select the pinconfig to enable the UART pins.
> > > >> Fix this so that the U-Boot banner is printed.
> > > >>
> > > >> Signed-off-by: Simon Glass <sjg at chromium.org>
> > > >> Fixes: 9821636b64 (bcm2835_pinctrl: Probe pre-reloc)
> > > >> ---
> > > >>
> > > >>  arch/arm/dts/bcm283x-u-boot.dtsi | 8 ++++++++
> > > >>  1 file changed, 8 insertions(+)
> > > >>
> > > >> diff --git a/arch/arm/dts/bcm283x-u-boot.dtsi b/arch/arm/dts/bcm283x-u-boot.dtsi
> > > >> index 36548dad62..68d03627f4 100644
> > > >> --- a/arch/arm/dts/bcm283x-u-boot.dtsi
> > > >> +++ b/arch/arm/dts/bcm283x-u-boot.dtsi
> > > >> @@ -19,3 +19,11 @@
> > > >>  &gpio {
> > > >>      u-boot,dm-pre-reloc;
> > > >>  };
> > > >> +
> > > >> +&uart0_gpio14 {
> > > >> +    u-boot,dm-pre-reloc;
> > > >> +};
> > > >> +
> > > >> +&uart1_gpio14 {
> > > >> +    u-boot,dm-pre-reloc;
> > > >> +};
> > > >
> > > > I think this is superseded by the RPi PR that I had been testing and
> > > > just now pushed.  Can you confirm that master is fine on your Pis as
> > > > well?  I gather you hit this failure doing pytest on the board, which is
> > > > also how I found it.  Thanks!
> > > >
> > >
> > > Can you confirm if this is working with master branch or if we still need your
> > > patch. In which situation would we need your patch then?
> >
> > Unfortunately with the 'next' branch I still need this patch. WIthout
> > it I don't get the pre-relocation serial output and tests fail.
>
> Which Pi exactly?  My 3B works with rpi_3_32b, rpi_3 and rpi_arm64
> defconfigs and test.py.

It is a rpi_3b I believe, and I am using the rpi_3_32b.

When I cherry-pick the patch the banner appears but before that it
doesn't. Shall I check it again?

Regards,
Simon