[U-Boot] [PATCH 00/14] Nokia RX-51 support

Pali Rohár
2012-01-25T21:16:22Z

On Wednesday 25 January 2012 21:56:37 Marek Vasut wrote:
> > On Wednesday 25 January 2012 19:20:01 Marek Vasut wrote:
> > > So why not just replace the bootloader right away?
> >
> > Booting process on n900:
> > 1. Omap bootrom
> > 2. Nokia X-Loader
> > 3. Nokia NOLO Bootloader
> > 4. Linux kernel
> > ...
>
> To make it clear, I own N900 myself ;-)
>
> > Nokia X-Loader and NOLO are stored in first nand part. It has size 128kB.
> > Nokia X-Loader is signed (size 14.5kB), so cannot be replaced. NOLO
> > bootloader is not signed (so theoretically can be replaced), but size is
> > limited to 113kB. I do not know how to compile U-Boot binary with size <
> > 113kB...
> >
> > Size of part where is stored linux kernel has 2MB and it is enought for
> > U-Boot with kernel image (~200kB + ~1.6MB). Also U-Boot can boot kernel
> > from eMMC/SD.
>
> You didn't answer my question, so again ... why can't you replace NOLO?
> Because there's the 113kb limit? Use SPL then.
>

I only tried to boot U-Boot in qemu wich increased boot part - but not worked.
(NOLO in qemu can boot u-boot without problems). So NOLO do some extra work -
which I do not know... Also limit is problem to test on real n900.

--
Pali Roh?r
pali.rohar at gmail.com
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 198 bytes
Desc: This is a digitally signed message part.
URL: <http://lists.denx.de/pipermail/u-boot/attachments/20120125/508fc344/attachment.pgp>