[yocto] U-boot enable not working for Raspberry Pi3

Wed Aug 7 11:59:48 PDT 2019

Hi Marek,

I'm going to top post so you don't have to scroll to the meat of the matter.

I had rebuilt my system because of a failing main hard disk and had lost settings on a number of the programs that I had to re-install and didn't notice. One that has obviously caused me problems is that the editor that I use I keep set to automatically save any changes on loss of focus. I had changed the local.conf file, but I didn't realize that it hadn't written out the changes.

I realized yesterday that the editor wasn't working as I expected and fixed the setting and went on. This morning I rebuilt my yocto system and it rebuilt more than I expected and when I installed it and booted, much to my surprise I realized that u-boot was being executed.

So sorry for the false concern, and thank you for the help and maybe someone will learn something from either my mistake or from your helpful responses.

Best Regards,

Greg Wilson-Lindberg  

> -----Original Message-----
> From: Greg Wilson-Lindberg
> Sent: Tuesday, August 06, 2019 12:03 PM
> To: Belisko Marek <marek.belisko at gmail.com>
> Cc: Yocto list discussion <yocto at yoctoproject.org>
> Subject: RE: [yocto] U-boot enable not working for Raspberry Pi3
> 
> Hi Marek,
> 
> > -----Original Message-----
> > From: Belisko Marek [mailto:marek.belisko at gmail.com]
> > Sent: Tuesday, August 06, 2019 11:40 AM
> > To: Greg Wilson-Lindberg <GWilson at sakuraus.com>
> > Cc: Yocto list discussion <yocto at yoctoproject.org>
> > Subject: Re: [yocto] U-boot enable not working for Raspberry Pi3
> >
> > Hi Greg,
> >
> > On Tue, Aug 6, 2019 at 8:29 PM Greg Wilson-Lindberg
> > <GWilson at sakuraus.com>
> > wrote:
> > >
> > > Hi Marek,
> > >
> > > Thanks for the suggestion, that seems to be the case. What image are
> > > you
> > building so I can try that to see what I get?
> > Please don't top post ;). I'm building basic image. I worked few
> > months ago with bootqt and sometimes it was bit tricky ;). Are you
> > sure you have this variable set in local.conf?
> 
> Here is an excerpt from my local.conf file:
> 
> # CONF_VERSION is increased each time build/conf/ changes incompatibly and is
> used to # track the version of this file when it was generated. This can safely be
> ignored if # this doesn't mean anything to you.
> CONF_VERSION = "1"
> 
> 
> #
> # Custom additions
> #
> 
> # Additional dtbo's
> KERNEL_DEVICETREE_remove = " overlays/mcp2515-can0.dtbo
> overlays/mcp2515-can1.dtbo"
> 
> # Fixes for inclusion of mysql
> PACKAGECONFIG_append_pn-qtbase += " sql-mysql"
> QT_CONFIG_FLAGS_append_pn-qtbase += " -I /usr/include/mysql"
> QT_CONFIG_FLAGS_append_pn-qtbase += " -I
> ${STAGING_DIR_TARGET}/usr/include/mysql"
> 
> RPI_USE_U_BOOT = "1"
> 
> # End Custom additions
> #
> 
> #INHERIT += "rm_work"
> INHERIT += "image-buildinfo"
> INHERIT += "internal-build"
> 
> I copied the line from the meta-raspberrypi documentation so I think it should be
> formatted correctly. I know the mysql stuff is working correctly.
> 
> I tried bitbake -e core-image-minmal and I don't get it being set then either.
> 
> > >
> > > BR,
> > > Greg
> > >
> > > > -----Original Message-----
> > > > From: Belisko Marek [mailto:marek.belisko at gmail.com]
> > > > Sent: Tuesday, August 06, 2019 11:12 AM
> > > > To: Greg Wilson-Lindberg <GWilson at sakuraus.com>
> > > > Cc: Yocto list discussion <yocto at yoctoproject.org>
> > > > Subject: Re: [yocto] U-boot enable not working for Raspberry Pi3
> > > >
> > > > Hi Greg,
> > > >
> > > > On Tue, Aug 6, 2019 at 7:12 PM Greg Wilson-Lindberg
> > > > <GWilson at sakuraus.com>
> > > > wrote:
> > > > >
> > > > > I'm working with a Yocto Sumo build provided with Qt's boot2qt
> > > > > system. I'm trying
> > > > to enable using Das U-boot to load Linux as a first step in trying
> > > > to enable OSTree updates.
> > > > >
> > > > > In the meta-raspberrypi documentation is says to set:
> > > > >
> > > > > RPI_USE_U_BOOT = "1"
> > > > Could be tha tboot2qt somehow drop your config. Please try tin run
> > > > bitbake -e <IMAGE_NAME> | grep ^RPI_USE_U_BOOT to be sure that
> > > > variable exists. I used it many times and it works perfectly fine.
> > > > >
> > > > > to enable u-boot for the raspberrypi. I have set that variable
> > > > > in the top level
> > > > local.conf file but I don't seem to be getting any changes in the
> > > > build. Nothing in the cooker log shows building u-boot, and the
> > > > start up screen doesn't show any u-boot messages.
> > > > >
> > > > > It appears that I'm missing necessary to turn u-boot on, can
> > > > > anybody shed some
> > > > light on what is going on?
> > > > >
> > > > > Regards,
> > > > >
> > > > > Greg Wilson-Lindberg
> > > > > www.sakuraus.com
> > > > > --
> > > > > _______________________________________________
> > > > > yocto mailing list
> > > > > yocto at yoctoproject.org
> > > > > https://lists.yoctoproject.org/listinfo/yocto
> > > >
> > > > BR,
> > > >
> > > > marek
> > > >
> > > > --
> > > > as simple and primitive as possible
> > > > -------------------------------------------------
> > > > Marek Belisko - OPEN-NANDRA
> > > > Freelance Developer
> > > >
> > > > Ruska Nova Ves 219 | Presov, 08005 Slovak Republic
> > > > Tel: +421 915 052 184
> > > > skype: marekwhite
> > > > twitter: #opennandra
> > > > web: http://open-nandra.com
> >
> > BR,
> >
> > marek
> 
> BR,
> Greg