Hi Stefan, In the system, only below regions were mapped and only these regions can be erased/programmed.
0x54: 0x000f0000 FREG0: Flash Descriptor region (0x00000000-0x0000ffff) is read-write. 0x58: 0x07ff0200 FREG1: BIOS region (0x00200000-0x007fffff) is read-write. The other regions were not used on this platform. Creating a romlayout file and programming only the specified regions solves the issue. The patch works fine. #cat romlayout 00000000: 0000ffff desc 00200000: 007fffff bios # ./flashrom -p internal:laptop=this_is_not_a_laptop -l romlayout -i desc -i bios -w NewBios.bin Thanks & Regards, Rajasekhar On Wed, Apr 23, 2014 at 9:01 PM, Stefan Tauner < [email protected]> wrote: > On Wed, 23 Apr 2014 20:40:26 +0530 > Rajasekhar Pulluru <[email protected]> wrote: > > > Hi Stefan, > > > > Attached the full logs (excluding dmi). My observation is that: > > 1) reading spi flash seems to be good. > > 2) erasing spi flash : only first 64kb erases successfully, after that > > erase reports failure. > > 3) programming spi flash: only first 64kb programs fine, after that erase > > reports failure. > > Hi, your output is missing the lines that are printed to stderr instead > of stdout and you should probably use the -o option of flashrom to > create logfiles ;) > ... but anyway, it seems to me as if the ME region starts exactly where > you have problems. And I assume that it is at least not writable. You > can make that r/w by changing the flash descriptor (i.e. the first 4kB > which are apparently writable). > > -- > Kind regards/Mit freundlichen Grüßen, Stefan Tauner >
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