this week work on KBOOT
Werner Almesberger
werner at openmoko.org
Mon Jun 2 22:36:18 CEST 2008
Andy Green wrote:
> No actually xingfu got started really well on that, he identified 3
> files out of U-Boot that he needed to make a minimal bootloader.
Sounds great !
> If we were to
> write our own minimal bootloader from scratch, we would probably raid
> the same 3 files for minimal working stuff. Right?
Yup. I'd also move any initialization that doesn't absolutely have to
happen in the boot loader into the kernel. Makes things much cleaner.
> Hum. Please give it some thought before we go back down this path of
> block devices with unreliable blocks, etc, in Linux.
Different "coordinates" apart, they're the same as in u-boot. Note
that I'm not suggesting to do crazy things with JFFS2 or friends.
Also, that stuff is much easier to use from Linux than with u-boot.
> I already know the answer to this because I discussed it with Milosch
> the other week: if there is no BBT then MTD stuff in Linux creates one.
Hmm, I have to have a look at this. I know that a BBT is created in
that way in some cases, but I thought one could also prevent it from
happening.
- Werner
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