[flashrom] [PATCH] Board enable (EC sleep) for Acer Ferrari 3400

Michael Karcher Michael.Karcher at fu-berlin.de
Mon Apr 12 02:00:48 CEST 2010


Am Montag, den 12.04.2010, 00:50 +0200 schrieb Magnus Alm:
> "sudo flashrom" doesn't cause any problems now.
Cool, looks like I got it right.

> "sudo flashrom -r BACKUP.ROM" works also tho the created file is
> smaller than the downloaded file.
> 
> -rw-r--r-- 1 root   root     524288 2010-04-12 00:36 BACKUP.ROM
> -rw-r--r-- 1 magnus magnus   525894 2004-10-19 09:32 ZI5_3C23.WPH
> 
> That might not be so strange if the downloaded file also contains
> information about "magic bits".
The .WPH file format contains flashing instructions appended to the
image, while the BACKUP.ROM does not. Your backup is exactly 512*1024
bytes big. If you want to try flashing the new image (which will most
likely work), you should keep the data from the BACKUP.ROM at offsets
0x10000..0x11fff, as this 8KB area contains BIOS system information. (I
extracted this information from the appended stuff in the .WPH file)
The first 0xE000 bytes in your flash BIOS contain the code for the
embedded controller.

Regards,
  Michael Karcher
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