[yocto] [meta-raspberrypi] Confusion about U-Boot setup

[Belisko Marek]

Hi,

On Wed, Sep 4, 2019 at 6:56 PM Greg Wilson-Lindberg
<GWilson at sakuraus.com> wrote:
>
> > -----Original Message-----
> > From: Belisko Marek [mailto:marek.belisko at gmail.com]
> > Sent: Wednesday, September 04, 2019 12:26 AM
> > To: Greg Wilson-Lindberg <GWilson at sakuraus.com>
> > Cc: Yocto list discussion <yocto at yoctoproject.org>
> > Subject: Re: [yocto] [meta-raspberrypi] Confusion about U-Boot setup
> >
> > Hi,
> >
> > On Tue, Sep 3, 2019 at 8:58 PM Greg Wilson-Lindberg <GWilson at sakuraus.com>
> > wrote:
> > >
> > > I've configured a sumo build, by way of QT's boot2qt to use u-boot and I am
> > seeing a u-boot prompt for keypress to drop out of automatic booting on startup, but
> > I don't see any configuration scripts for u-boot (uEnv.txt or a script) on the image or
> > in the build tmp/ dir.
> > >
> > > For the raspberry pi, how is u-boot configured on startup?
> > there is u-boot variable called bootdelay which can be set to e.g. 2 to wait until
> > autoboot for 2 secs. I think this is the case. Thanks.
>
> There is a variable "BOOT_DELAY", that is used to tell the Raspberry Pi boot loader to delay after setting up the graphics and before loading the kernel. This has nothing to do with u-boot.  There should be some way to change the u-boot delay that waits for user input, among other things, I just haven't been able to find it yet and was wondering if someone could point me to where it can be found.
I think you need to look at u-boot source. Such thing is not available
in yocto IIRC.
>
> BR,
> Greg
>
> > >
> > > Regards,
> > > Greg Wilson-Lindberg
> > >
> > > --
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> >
> > BR,
> >
> > marek

BR,

marek