On Sun 2013-06-09 03:59:44, Pavel Machek wrote:
> Hi!
>
> I'd like to convert Nokia N900 to device tree.
>
> Unfortunately, serial port is not easily available (very special cable
> would be needed, does someone know where to get one?) and I don't have
> BDI (and very special cable would be needed, too).
>
> So I tried doing very small first step, hoping that I get booting
> system... obviously I did not.
>
> I tried formally switching to device tree while still booting using
> hardcoded functions. No luck. Does anyone see what I did wrong?
>
> Is it possible that n900 has its main memory somewhere else than
> 0x80000000?
Interesting. It seems that memory setup from atags is indeed
0x8000 0000 size 0x0800 0000
0x8800 0000 size 0x0800 0000
. But hopefully that's just complicated way of saying
0x8000 0000 size 0x1000 0000
.
Anyway, I now see problem with my reasoning: kernel is full of
if (of_have_populated_dt())
tests, so it is impossible to switch to device tree, and still expect
old-style init to work :-(.
Pavel
--
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(cesky, pictures)
http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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