[U-Boot-Users] ramdisk problem (once again?)

Wolfgang Denk
2008-02-12T23:07:05Z

In message <47B2202A.7000807@gandalf.sssup.it> you wrote:
>
> > The kernel.org tree does not recognize a ramdisk image in flash.
> > Patches have been posted here since 2.4.17 times, but never made it
> > upstream. See the archives ...
> >
> If you want to use it, put in ram before... Regards Michael

yesm that's the status quo - but it's plain stupid. Why add another
memory copy of megabytes of data, when the kernel will just read the
data, uncompres it and write it to some (other) RAM location? The
flash is mapped anyway (normally), so it just has to check if it's a
RAM or flash address to decide if it should free that area or not.
That's a tiny patch, actually.

It's on the same line with the ARM kernel always bringing with it
it's own decompressor code - why do we have to copy this with each
and every image when we already have a working copy of that code in
U-Boot?

Well, let the PTB for ARM answer this...

Best regards,

Wolfgang Denk

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