On Mon, May 06, 2002 at 12:27:32PM +0200, Florian Lohoff wrote:
> i yesterday had a try booting my RM200 (Big Endian Sinix firmware)
> with a big endian compiled kernel - It immediatly crashes in ArcWrite
> as the Bios is not an Arc (Probably a bit similar).
>
> Does anyone have interesting informations about that prom ?
>
> BTW: There are really some funny lines in arc/init.c :)
>
> arch/mips/arc/init.c
> 36 if (pb->magic != 0x53435241) {
> 37 prom_printf("Aieee, bad prom vector magic %08lx\n", pb->magic);
> 38 while(1)
> 39 ;
> 40 }
> 41
>
> Calling ArcWrite in case of no Arc ;) At least one knows what happens
> if the Firmware is giving out EPC Faulting address (Which in this case
> is 0x6c)
So far the assumption is that SNI's firmware is lookling like ARCS which is
basically a big endian abortion of ARC. Alternativly it might as well
look similar to the firmware of the old MIPS workstations such as the
RC3230 or similar.
I wonder if the the magic just needs to be endianess swapped?
Ralf
