[yocto] [meta-atmel] at91sam9x5ek: "no machine record defined" failure for core-image-minimal

[Bryan Evenson]

Brian,

> -----Original Message-----
> From: Brian Karcz [mailto:briank at RUSSOUND.COM]
> Sent: Friday, May 09, 2014 3:49 PM
> To: Bryan Evenson; Bruce Ashfield; yocto at yoctoproject.org
> Subject: RE: [yocto] [meta-atmel] at91sam9x5ek: "no machine record
> defined" failure for core-image-minimal
> 
> Hi Bryan,
> 
> Thanks for the tip. Any chance you tried assigning the PREFFERED_VERSION
> to 3.6.9 and using the linux4sam meta-atmel layer as is?
> 
> I'll definitely check out your layer. I was hoping the at91sam9x5ek would just
> build so that I could start tweaking it to define a machine works for its little
> brother, the at91sam9g20ek.
> 
> I'm coming from an older 2.6.30 kernel that used a board file instead of the
> device tree and was planning to use the demo build from meta-atmel and
> some small mods to give myself a crash course on device tree development.
> Looks like the learning curve might have steepened a bit.

I would take a look at using at least the 3.10 kernel from Atmel.  It's the most stable one they have and it's where they've been backporting additional device tree support.  I believe if you use my defconfig, you should be able to build a 3.10 kernel with Atmel's latest layer.  And definitely start reading up on device tree development.  It takes some getting used to but it is a good step forward.

Regards,
Bryan

> 
> Thanks,
> Brian
> 
> -----Original Message-----
> From: Bryan Evenson [mailto:bevenson at melinkcorp.com]
> Sent: Friday, May 09, 2014 3:31 PM
> To: Bruce Ashfield; Brian Karcz; yocto at yoctoproject.org
> Subject: RE: [yocto] [meta-atmel] at91sam9x5ek: "no machine record
> defined" failure for core-image-minimal
> 
> Brian,
> 
> I'm currently using a fork of the meta-atmel layer for my at91sam9g25 board.
> If I remember when they added at91sam9x5 support for meta-atmel, I think
> the layer was on kernel 3.6.9 and now it's on 3.10.  There's been a lot of
> machine and device tree related configuration changes for this chipset
> between 3.6.9 and 3.10, so that configuration might not work for 3.10.
> 
> The configuration I'm currently using is over at
> https://github.com/evensonbryan/meta-atmel/tree/master/recipes-
> kernel/linux/files/at91sam9x5ek/linux-3.10-at91.  It also has some patches I
> added in to pick up some missing peripheral support for my system.  You may
> want to give that a try and see if it helps.
> 
> Regards,
> Bryan