[meta-ti] Build core-image-minimal on tdm3730

[Denys Dmytriyenko]

On Fri, Jul 26, 2013 at 03:17:25PM +0200, a.renault at kaptalia.com wrote:
> Hi there, 
> I already post this message this morning on #linux-omap but I have got no 
> answer, so if you please I will test here.
> 
> I am trying to build core-image-minimal (OpenEmbedded/yocto) for my TechNexion 
> TDM-3730 (http://www.technexion.com/index.php/products/arm-cpu-modules/ti-
> dm3730/tdm-3730) CPU : TI Sitara DM3730 at 1Ghz, DSP Core TMS320C64x at 800Mhz and 
> POWERVG SGX 530
> 
> I read the CPU was omap3 compatible so I downloaded the meta-ti on 
> http://layers.openembedded.org/layerindex/layer/meta-ti/ and tried to put 
> "omap3evm" on the field MACHINE of local.conf.
> 
> The folder build/tmp-eglibc/deploy/images is now containing core-image-
> minimal.rootfs.tar.gz, uImage, u-boot.bin and MLO  but when I tried to install 
> them on my board, I have got the next issue : 
> 
> Error: unrecognized/unsupported machine ID (r1 = 0x00000c78). Available 
> machine support:ID (hex)	NAME 000005ff	OMAP3 EVM Please check your kernel 
> config and/or bootloader.
> 
> I understand what happen but I don't know how to fix it. 
> 
> I also tried to build with MACHINE=am37x-evm, got the same issues.
> am37x seams to be close to dm37x didn't it?
> 
> Did not tried TI Sitara AM3517 EVM.
> 
> Do you have any idea of what I should try to do. Did you know someone who 
> succeed to build yocto on that card? 
> I saw angstrom narcissus (http://narcissus.angstrom-distribution.org/) 
> proposing to build a rootfs for dm3730-am3715-evm but all the selected package 
> selected failed.

I'm not familiar with it, but looks like this TechNexion TDM-3730 module has 
it's own unique machine ID and requires changes to the kernel to be able to 
identify your board. I'm guessing you are trying to use an old 2.6.x kernel 
that required a board file for each new platform, if it's not exactly the same 
(hence a different ID). Check with the company that produces this board if 
they have a kernel or patch available to make it work. Otherwise you better 
off asking on e2e.ti.com for how to add new machine ID for your board...

-- 
Denys