[U-Boot] [PATCH 0/4] dm: rpi: Move Raspberry Pi to use driver model

[Simon Glass]

Hi Stephen,

On Oct 25, 2014 9:43 PM, "Stephen Warren" <swarren at wwwdotorg.org> wrote:
>
> On 10/21/2014 08:04 PM, Simon Glass wrote:
> > Hi Stephen,
> >
> > On 20 October 2014 20:23, Stephen Warren <swarren at wwwdotorg.org> wrote:
> >> On 10/19/2014 09:14 PM, Simon Glass wrote:
> >>> Hi Stephen,
> >>>
> >>> On 17 October 2014 20:51, Stephen Warren <swarren at wwwdotorg.org>
wrote:
> >>>> On 09/30/2014 07:41 PM, Stephen Warren wrote:
> >>>>> On 09/22/2014 05:30 PM, Simon Glass wrote:
> >>>>>> This series adds driver model support to the GPIO and serial
drivers used
> >>>>>> by Raspberry Pi, and moves Raspberry Pi over to driver model.
> >>>>>>
> >>>>>> This requires adding driver model support to the pl01x serial
driver, and
> >>>>>> replacing the bcm2835 GPIO driver with a driver model version
(since there
> >>>>>> are no longer clients that don't use driver model).
> >>>>>>
> >>>>>> See u-boot-dm.git branch rpi-working for the tree this is based on.
> >>>>>
> >>>>> The series,
> >>>>> Tested-by: Stephen Warren <swarren at wwwdotorg.org>
> >>>>
> >>>> Hmm. I take that back. Patch 4 causes a problem, at least when
applied
> >>>> on top of u-boot/master from today.
> >>>>
> >>>> Basic serial output works just fine, and I can interact with U-Boot
> >>>> without issue. However, when the boot scripts execute and load an
> >>>> extlinux.conf, U-Boot hangs. Up to patch 3, everything is fine.
> >>>>
> >>>> U-Boot 2014.10-00004-g7830ed7 (Oct 17 2014 - 20:47:19)
> >>>>
> >>>> DRAM:  480 MiB
> >>>> WARNING: Caches not enabled
> >>>> MMC:   bcm2835_sdhci: 0
> >>>> Using default environment
> >>>>
> >>>> In:    serial
> >>>> Out:   lcd
> >>>> Err:   lcd
> >>>> reading /uEnv.txt
> >>>> 24 bytes read in 14 ms (1000 Bytes/s)
> >>>> Hit any key to stop autoboot:  0
> >>>> switch to partitions #0, OK
> >>>> mmc0 is current device
> >>>> Scanning mmc 0...
> >>>> Found /extlinux/extlinux.conf
> >>>> Retrieving file: /extlinux/extlinux.conf
> >>>> reading /extlinux/extlinux.conf
> >>>> (U-Boot hangs here)
> >>>>
> >>>
> >>> Can you please point me to where I can get an image to try this with?
> >>> Also did you check with dm/next? There may be dependent patches,
> >>> although the nature of the problem suggests not.
> >>
> >> I use (a pretty old version of, but I doubt that matters) RPi
> >> Foundation's Raspbian image, and compiled the kernel and U-Boot
> >> according to:
> >>
> >>
http://elinux.org/index.php?title=RPi_Upstream_Kernel_Compilation&oldid=351104
> >>
> >> http://elinux.org/RPi_U-Boot
> >>
> >
> > I installed the Raspbian image but I don't get uImg.txt nor the same
> > boot sequence. I am able to boot a kernel though.
> >
> > Do you have your settings or images uploaded somewhere? Also please
> > confirm you used dm/next.
>
> FWIW, the content in the following branches does seem to work:
>
> u-boot/master
> 5b3ee38 kbuild: clear VENDOR variable to fix build error on tcsh
>
> u-boot-dm/master
> c2ded96 serial: remove uniphier_serial_initialize() call
>

In what way?

Regards,
Simon