Re: Yocto migration meta-barebox -> walnascar

[Marco Felsch <m.felsch@pengutronix.de>]

Hi Konstantin,

On 26-01-06, Konstantin Kletschke wrote:
> Dear barebox people,
> Happy New Year everybody :-)

Thanks, happy new year to you too :)

> I used up until scarthgap https://github.com/menschel-d/meta-barebox
> 
> In our meta layer we have config in distro conf like this:
> 
> ABREBOX_CONFIG:beaglebone-yocto = "omap_defconfig"
> BAREBOX_CONFIG:pn-barebox-pbl:beaglebone-yocto = "am335x_mlo_defconfig"
> BAREBOX_IMAGE_SRC:beaglebone-yocto = "images/barebox-am33xx-beaglebone.img"
> BAREBOX_IMAGE_SRC:pn-barebox-pbl:beaglebone-yocto = "images/barebox-am33xx-beaglebone-mlo.img"
> RDEPENDS:barebox:beaglebone-yocto += "barebox-pbl"
> COMPATIBLE_MACHINE:pn-barebox:beaglebone-yocto = "beaglebone-yocto"
> COMPATIBLE_MACHINE:pn-barebox-pbl:beaglebone-yocto = "beaglebone-yocto"
> PREFERRED_PROVIDER_virtual/bootloader = "barebox"
> 
> And a append recipe mainly with patches creating our custom
> configuration.
> 
> Now I learned, barebox went into openembedded-core, this is great news!
> 
> I ditched the meta-barebox, tried my best, needed to remove alle configs
> regarding "-pbl" and compiled:
> ERROR: Nothing RPROVIDES 'barebox-pbl'
>  (but /home/konsti/Melitta/scarthgap/meta/recipes-bsp/barebox/barebox.bb
>  RDEPENDS on or otherwise requires it)

Which barebox version do you use?

> Now I get several ~580kB img files in the deployment images directory,
> "ours" seems to be barebox-am33xx-beaglebone.img. File size is plausible
> for the ex barebox.bin and strings suggest our insidem2m stuff to
> boot/tftp/nfs landed up in it.
> 
> Where is the MLO part? Is barebox-am33xx-beaglebone.img the 1:1
> barebox.bin equivalent?

Ahmad added the support for a single barebox binary:
 - https://lore.barebox.org/barebox/20250422052635.3423961-1-a.fatoum@pengutronix.de/

IIRC the purpose of the patchset was exactly to fulfill an easier Yocto
integration since the beaglebone is one of the oe-core real test hw.

> We are used to create a partition table, first partition is vfat type
> 0x0c, MLO and barebox.bin are put there, works.

Since the single image approach targets only the SD/MMC boot, the
standalone MLO image should be still possible.

Regards,
  Marco

> 
> Kind Regards
> Konstantin Kletschke
> 
> 
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