[U-Boot-Users] RFC: Booting the Linux/ppc64 kernel without Open Firmware HOWTO (#2)

Wolfgang Denk
2005-05-19T13:18:39Z

Dear Ben,

in message <1116478614.918.75.camel@gaston> you wrote:
>
> And here is a second draft with more infos.
>
> Booting the Linux/ppc64 kernel without Open Firmware

Thanks a lot for taking the initiative to come to an agreement about
the kernel boot interface.

I have some concerns about the memory foot print and increased boot
time that will result from the proposed solution. There are many
embedded systems where resources are tight and requirements are aven
tighter. It would be probably a good idea to also ask for feedback
from these folks - for example by posting your RFC on the celinux-dev
mailing list.

But my biggest concern is that we should try to come up with a
solution that has a wider acceptance. Especially from the U-Boot
point of view it is not exactly nice that each of PowerPC, ARM and
MIPS use their very own, completely incompatible way of passing in-
formation from the boot loader to the kernel.

As is, your proposal will add just another incompatible way of doing
the same thing (of course we will have to stay backward compatible
with U-Boot to allow booting older kernels, too).

Why don't we try to come up with a solution that is acceptable to the
other architectures as well?

Maybe you want to post the RFC to lkml, or at least to the
linux-arm-kernel and linux-mips mailing lists?

Best regards,

Wolfgang Denk

--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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