[coreboot] Fwd: s2892 + CBFS strange failure
Myles Watson
mylesgw at gmail.com
Fri Apr 24 21:22:55 CEST 2009
On Fri, Apr 24, 2009 at 1:07 PM, ron minnich <rminnich at gmail.com> wrote:
> On Fri, Apr 24, 2009 at 12:05 PM, Rudolf Marek <r.marek at assembler.cz> wrote:
>
>> On particular addresses in flash there are some magic values for chipset. (HT
>> setup etc) This is fetched by chipset before CPU is on. So it can fetch the code
>> at all. Maybe, just maybe CBFS changed that rom locations.
>
> I think you just nailed it! That makes sense. I just totally forgot
> about that aspect of the nvidia stuff.
>
> Ward and Myles, can you check that?
here's the tail end of the hexdump for the normal image:
*
000fff60 ff ff ff ff ff ff ff ff ff 54 79 61 6e 00 73 32 |.........Tyan.s2|
000fff70 38 39 32 00 97 00 00 00 92 00 00 00 00 70 0f 00 |892..........p..|
000fff80 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
*
000fffa0 65 d0 16 2b 00 00 00 00 00 00 00 00 b0 ff ff ff |e..+............|
000fffb0 1c 00 03 00 00 00 00 08 00 00 00 00 ff ff ff ff |................|
000fffc0 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
000fffd0 66 32 54 81 e0 00 00 00 ce 09 23 00 00 81 e0 00 |f2T.......#.....|
000fffe0 a0 ff ff ff a0 ff ff ff a0 ff ff ff a0 ff ff ff |................|
000ffff0 e9 b5 79 ff ff 00 00 00 e9 03 7a ff ff 00 00 00 |..y.......z.....|
00100000
And the cbfs image:
*
000fff60 ff ff ff ff ff ff ff ff ff 54 79 61 6e 00 73 32 |.........Tyan.s2|
000fff70 38 39 32 00 97 00 00 00 92 00 00 00 00 00 08 00 |892.............|
000fff80 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
*
000fffa0 65 d0 16 2b 00 00 00 00 00 00 00 00 b0 ff ff ff |e..+............|
000fffb0 1c 00 03 00 00 00 00 08 00 00 00 00 ff ff ff ff |................|
000fffc0 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff |................|
000fffd0 4f 52 42 43 00 00 00 00 00 08 00 00 00 02 00 00 |ORBC............|
000fffe0 00 00 00 10 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000ffff0 e9 85 01 ff ff 00 00 00 e9 d3 01 ff d0 ff ff ff |................|
00100000
It looks like romstrap is fffa0-ffff0. Definitely different.
Thanks Rudolf!
Thanks,
Myles
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