[PATCH v2 00/26] dm: Change the way sequence numbers are implemented

[Simon Glass]

Hi Michael,

On Sat, 12 Dec 2020 at 11:38, Simon Glass <sjg at chromium.org> wrote:
>
> Hi Michael,
>
> On Sat, 12 Dec 2020 at 10:53, Michael Walle <michael at walle.cc> wrote:
> >
> > Hi Simon,
> >
> > Am 2020-12-12 16:39, schrieb Simon Glass:
> > >> Sequence numbers looks good, but PCI still doesnt work on my board.
> > >
> > > Thanks for trying this out.
> > >
> > > I suppose you have a different problem from what I found in v1. Can
> > > you please send the output of these things before and after the
> > > change?
> > >
> > > dm tree
> > > dm uc
> > > pci
> > > pci 1
> > > (e.g. for other buses)
> > > pci 0 long
> >
> [..]
>
> >
> > > Which board is it? I suppose there is a chance I have one.
> >
> > Kontron SMARC-sAL28 (kontron_sl28 defconfig) (a LS1028A SoC)
>
> Thanks for the info. I was worried that the renumbering might cause
> problems but saw no issues on my x86 board.
>
> If you look at the sequence numbers for PCI they have changed. They
> also correspond to the bus numbers, and PCI uses the sub bus number to
> route access to sub bus, so I suspect one of your buses is not getting
> traffic.
>
> At present the only fix is to add all buses into the DT. I'll take a
> look and see what else I can do.

I've pushed an experimental tree to u-boot-dm/seq3-working

Are you able to take a look and send the same output as last time? I
am trying to change how PCI allocation happens, so that it follows the
PCI rules. Hopefully the change makes sense to you but I would
appreciate any insights you may have.

Regards,
Simon