[LinuxBIOS] flashrom fails on GA-M57SLI with 1MB ROM

[Andreas B. Mundt]

> > 
> > Does flashrom -r  actually return a file of all 0xFFs after the erase?
> > 
> 
> 
> In fact it does not. Most of the file looks as if it is still the
> linuxbios.rom.
> 

For me, writing seems to work only from address 0x000f0000 upwards. 
This is part of the ROM content read after writing 1M of zeros (prior
to the zero-writing, LB was on the chip):

000eff10: 80f9 1a76 0d0f b6c9 b301 83e9 08d3 e383  ...v............
000eff20: cb01 8a47 0131 d23c 0188 856f ffff ff76  ...G.1.<...o...v
000eff30: 110f b68d 5fff ffff b201 83e9 08d3 e283  ...._...........
000eff40: ca01 80bd 5eff ffff 0074 1289 d801 db83  ....^....t......
000eff50: e001 09c3 89d0 83e0 0101 d209 c281 e201  ................
000eff60: 00f8 1f8b 8d58 ffff ff89 de89 9560 ffff  .....X.......`..
000eff70: ff8b 9538 ffff ff81 e601 00f8 1f8d 04cd  ...8............
000eff80: 4000 0000 b9f8 0c00 008b 520c c1ea 0409  @.........R.....
000eff90: d025 fcff ff7f 8995 64ff ffff 0d00 0000  .%......d.......
000effa0: 8089 caef 89f0 b2fc ef8b 9d58 ffff ff89  ...........X....
000effb0: ca01 db8d 049d 4400 0000 0b85 64ff ffff  ......D.....d...
000effc0: 25fc ffff 7f0d 0000 0080 ef8b 8560 ffff  %............`..
000effd0: ffb2 fcef 80bd 6fff ffff 0475 428d 049d  ......o....uB...
000effe0: 5000 0000 89ca 0b85 64ff ffff 25fc ffff  P.......d...%...
000efff0: 7f0d 0000 0080 ef89 f0b2 fcef 8d04 9d54  ...............T
000f0000: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000f0010: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000f0020: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000f0030: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000f0040: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000f0050: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000f0060: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000f0070: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000f0080: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000f0090: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000f00a0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000f00b0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000f00c0: 0000 0000 0000 0000 0000 0000 0000 0000  ................

This is the same part afer erase:

000eff10: 80f9 1a76 0d0f b6c9 b301 83e9 08d3 e383  ...v............
000eff20: cb01 8a47 0131 d23c 0188 856f ffff ff76  ...G.1.<...o...v
000eff30: 110f b68d 5fff ffff b201 83e9 08d3 e283  ...._...........
000eff40: ca01 80bd 5eff ffff 0074 1289 d801 db83  ....^....t......
000eff50: e001 09c3 89d0 83e0 0101 d209 c281 e201  ................
000eff60: 00f8 1f8b 8d58 ffff ff89 de89 9560 ffff  .....X.......`..
000eff70: ff8b 9538 ffff ff81 e601 00f8 1f8d 04cd  ...8............
000eff80: 4000 0000 b9f8 0c00 008b 520c c1ea 0409  @.........R.....
000eff90: d025 fcff ff7f 8995 64ff ffff 0d00 0000  .%......d.......
000effa0: 8089 caef 89f0 b2fc ef8b 9d58 ffff ff89  ...........X....
000effb0: ca01 db8d 049d 4400 0000 0b85 64ff ffff  ......D.....d...
000effc0: 25fc ffff 7f0d 0000 0080 ef8b 8560 ffff  %............`..
000effd0: ffb2 fcef 80bd 6fff ffff 0475 428d 049d  ......o....uB...
000effe0: 5000 0000 89ca 0b85 64ff ffff 25fc ffff  P.......d...%...
000efff0: 7f0d 0000 0080 ef89 f0b2 fcef 8d04 9d54  ...............T
000f0000: ffff ffff ffff ffff ffff ffff ffff ffff  ................
000f0010: ffff ffff ffff ffff ffff ffff ffff ffff  ................
000f0020: ffff ffff ffff ffff ffff ffff ffff ffff  ................
000f0030: ffff ffff ffff ffff ffff ffff ffff ffff  ................
000f0040: ffff ffff ffff ffff ffff ffff ffff ffff  ................
000f0050: ffff ffff ffff ffff ffff ffff ffff ffff  ................
000f0060: ffff ffff ffff ffff ffff ffff ffff ffff  ................
000f0070: ffff ffff ffff ffff ffff ffff ffff ffff  ................
000f0080: ffff ffff ffff ffff ffff ffff ffff ffff  ................
000f0090: ffff ffff ffff ffff ffff ffff ffff ffff  ................
000f00a0: ffff ffff ffff ffff ffff ffff ffff ffff  ................
000f00b0: ffff ffff ffff ffff ffff ffff ffff ffff  ................
000f00c0: ffff ffff ffff ffff ffff ffff ffff ffff  ................
000f00d0: ffff ffff ffff ffff ffff ffff ffff ffff  ................

The flashing speed seems to be rather slow compared to
flashing speed after booting with proprietary BIOS. At block 0x000f0000
the speed suddenly increases dramatically.

With proprietary BIOS anything seems to work so far :-(

Regards,

	Andi