[U-Boot] [RESEND PATCH v2 12/13] davinci: omapl138-lcdk: enable driver-model in SPL

[Bartosz Golaszewski]

pt., 25 paź 2019 o 18:10 Bartosz Golaszewski <brgl at bgdev.pl> napisał(a):
>
> czw., 26 wrz 2019 o 01:21 Faiz Abbas <faiz_abbas at ti.com> napisał(a):
> >
> > Hi,
> >
> > On 29/07/19 12:28 PM, Bartosz Golaszewski wrote:
> > > From: Bartosz Golaszewski <bgolaszewski at baylibre.com>
> > >
> > > Enable CONFIG_SPL_DM and enable the driver model for serial by defining
> > > an appropriate device in the board file for da850-lcdk.
> > >
> >
> > This breaks booting from MMC on omapl138_lcdk. You didn't add a
> > U_BOOT_DEVICE for the mmc node.
> >
> > Thanks,
> > Faiz
>
> Just letting you know I haven't forgotten about this. I finally got
> some time to work on it this week, but it turned out to be
> non-trivial, as for some reason the set_cmd mmc callback is not being
> properly assigned in SPL with driver-model and I couldn't find out why
> so far. Next week I'm at ELCE, but I'll be back at it on Thursday. I'm
> not sure if you want to revert the offending patch for now or this can
> wait for another week?
>
> Best regards,
> Bartosz Golaszewski

I've been working on this some more this week and noticed that in SPL
for some reason the bind function of the mmc driver is not called
(despite the driver being probed fine), but so far I've been unable to
figure out why exactly. This is the reason for the failure as the mmc
is not properly setup but the mmc core thinks it is and tries using
it.

I've tried both using a U_BOOT_DEVICE() defined in the board file or
adding the mmc node to arch/arm/dts/da850-lcdk-u-boot.dtsi.

Adam: you know davinci's SPL pretty well - do you have any suggestions?

Bart