Re: Generic 1.2 level kernel with PicassoII ?

[Andreas Bußjäger <razor%augsburg.baynet.de@localhost>]

Am 11-Feb-97 schrieb Ignatios Souvatzis:

>Markus, wait....

>there is another possibility.

>I already had some e-mail exchange and asynchronuous remote debug
>sessions with somebody who had problems with a new kernel (-1.2) and
>the Fusion40.

Yes... it was me :))

>It looks that a (yet unidentified) bug in sys/arch/amiga/amiga_init.c
>prevents booting directly via FASTMEM if certain bits of the physical
>address of the fastmem are != 0. 

>I don't remember the exact bits, but the Fusion Forty has the nice
>err... feature to put its CPU FASTROM equivalent MMU tables and ROM
>copy at the beginning of the FASTMEM, and make it look to the OS like
>the fastmem start ad some odd address (offset a bit over 512 kBytes,
>instead of directly at 0x11000000, where the physical memory is
>addressed).

hmm.. I can't remember it either :((

>Workaround, as I recall, is to either:

>a) boot via chipmem, if possible (also serves as a quick check if this
>is really the problem), or

>b) manipulate your memlist to start at 0x11000000 (forgot what the
>tool was that Andreas used), or

I disabled the Fusion Forty RAM and used addmem.st to add the memory manually.

>c) don't let the Fusion 40 tools integrate the local memory; create a
>memory list entry by hand for the memory on the F40 board, and directly call 
>loadbsd.

Use the tool addmem.st for this.

>I'm afraid we'll have to add yet another kludge list entry into
>loadbsd.

Your special version of loadbsd should work with his F40 too ?

I still have this version even I don't use it anymore because of 060.

>Regards,
>Ignatios Souvatzis


-- 
Mfg,

Andreas Bussjaeger

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