[OpenBIOS] ppc64 MMU issues (was: ppc(64) debugging)

[Blue Swirl]

On Sun, Nov 7, 2010 at 10:13 PM, Andreas Färber <andreas.faerber at web.de> wrote:
> Am 01.11.2010 um 17:36 schrieb Andreas Färber:
>
>> Latest state with local patches is that hell breaks loose once the MMU is
>> set up. I get a 0x400 (ISI) exception and when the bctrl to isi_exception()
>> is executed, we end up at trap_error, where it branches to
>> unexpected_excep() and tries to printk() to the serial port that's not yet
>> set up. I'll put a few patches together.
>
> Since r945 everything except for the trampoline issue should be in SVN.

For that, I'd suggest adding an explicit initialization function
(forth_init()) to set up the trampoline. This would be called from
arch/*/openbios.c etc.