On 31.12.2011 11:39, Paul Menzel wrote: > Am Samstag, den 31.12.2011, 10:55 +0100 schrieb Prakash Punnoor: > >> flashrom kind of works on my system, but not with the factory images. If I >> read it out with flashrom and write it back with flashrom (also to a >> different >> chip) it works. The sizes of factory and dumped image are same but they are >> somewhat binary different. Any idea? The motherboard is Abit A-S78H. As I am >> playing around with coreboot - so far unsuccessfully - I want to know >> whether >> flashrom is writing the generated image correctly... I can upload both >> images >> somewhere if interested. This is flashrom output on my system: >> >> >> flashrom v0.9.4-r1395 on Linux 3.2.0-rc7+ (x86_64), built with libpci 3.1.7, >> GCC 4.5.2, little endian >> flashrom is free software, get the source code at http://www.flashrom.org >> >> Calibrating delay loop... OK. >> Found chipset "AMD SB700/SB710/SB750/SB850". Enabling flash write... OK. >> This chipset supports the following protocols: LPC, FWH, SPI. >> Found Macronix flash chip "MX25L8005" (1024 kB, SPI) at physical address >> 0xfff00000. >> No operations were specified. > Unfortunately this question seems not be listed in the FAQ. Most of the > time some areas differ because the MAC address and other configuration > data of the downloaded images differs [2]. I hope you mean the > downloaded image by factory/vendor image.
To clarify: - Image I got from vendor web page: Flashed with flashrom won't work (machine doesn't POST). Flashed with awdflash works. - Image flashed with awdflash, dumped from bios chip using flashrom and writing back using flashrom (to an empty chip also) works (machine does POST and I can boot my OS) - I haven't tried writing flashrom dumped image using awdflash. - If I write a dumped image using flashrom and later do a flashrom -v it will complain about some difference. But flashrom -w verify pass was OK. This makes my head scratch and I wonder whether flashrom is working 100% correctly - especially using the generated coreboot rom. Regards, Prakash
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