[U-Boot] [PATCH 032/126] pci: Show a message if PCI autoconfig fails

Bin Meng bmeng.cn at gmail.com
Sun Oct 6 11:19:50 UTC 2019


On Sat, Oct 5, 2019 at 9:12 PM Bin Meng <bmeng.cn at gmail.com> wrote:
>
> On Wed, Sep 25, 2019 at 10:58 PM Simon Glass <sjg at chromium.org> wrote:
> >
> > At present this fails silently which can be confusing since some devices
> > on the PCI bus may not work correctly. Show a message in this case
>
> nits: missing . after case

Fixed, and

>
> >
> > Signed-off-by: Simon Glass <sjg at chromium.org>
> > ---
> >
> >  drivers/pci/pci_auto.c | 12 +++++++++---
> >  1 file changed, 9 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/pci/pci_auto.c b/drivers/pci/pci_auto.c
> > index 1a3bf708347..7755ffb6fa2 100644
> > --- a/drivers/pci/pci_auto.c
> > +++ b/drivers/pci/pci_auto.c
> > @@ -39,6 +39,8 @@ void dm_pciauto_setup_device(struct udevice *dev, int bars_num,
> >
> >         for (bar = PCI_BASE_ADDRESS_0;
> >              bar < PCI_BASE_ADDRESS_0 + (bars_num * 4); bar += 4) {
> > +               int ret = 0;
> > +
> >                 /* Tickle the BAR and get the response */
> >                 if (!enum_only)
> >                         dm_pci_write_config32(dev, bar, 0xffffffff);
> > @@ -97,9 +99,13 @@ void dm_pciauto_setup_device(struct udevice *dev, int bars_num,
> >                               (unsigned long long)bar_size);
> >                 }
> >
> > -               if (!enum_only && pciauto_region_allocate(bar_res, bar_size,
> > -                                                         &bar_value,
> > -                                                         found_mem64) == 0) {
> > +               if (!enum_only) {
> > +                       ret = pciauto_region_allocate(bar_res, bar_size,
> > +                                                     &bar_value, found_mem64);
> > +                       if (ret)
> > +                               printf("PCI: Failed autoconfig bar %x", bar);
>
> nits: should have a '\n'

Added a '\n', and

>
> > +               }
> > +               if (!enum_only && !ret) {
> >                         /* Write it out and update our limit */
> >                         dm_pci_write_config32(dev, bar, (u32)bar_value);
> >
> > --
>
> Other than above,
> Reviewed-by: Bin Meng <bmeng.cn at gmail.com>

applied to u-boot-x86/next, thanks!


More information about the U-Boot mailing list