HydraBus hangs when using flashrom (fixed) #76
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Using different speeds doesn't seem to make a difference. |
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Changes have to be made both in HydraFW and FlashROM.
You can test it on (https://github.com/Baldanos/flashrom) |
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Thanks! |
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Do you have any news about that ? any feedback is welcome |
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Hey there @Baldanos do you have a HydraBus? thank you :) |
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Unfortunately the problem still exists: BusPirate dumps the same SPI flash (AT45DB041D) with the same flashrom without any problems. The chip is connected properly, I can read device id on spi1: Here is an output of strace: https://afiskon.ru/s/29/b16555a066_strace.txt I'm using relatively new HydraFW compiled from cb077a7 (Thu May 24 08:21:25 2018 +0200). |
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Hi ! The official revision of Flashrom still does not includes our patch to support Hydrabus (see flashrom/flashrom#21) I have a (outdated) fork here if you want to test : https://github.com/Baldanos/flashrom Tell me if it works for you as well, so we can ask the PR to be merged. |
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Hello @Baldanos, The fork compiles and doesn't hang. However it doesn't recognize the flash chip: If I specify chip explicitly it fails like this: Same story with AT45DB161E (which should be compatible with AT45DB161D supported in the fork). The connection is OK. As previously I can read chip id. |
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Thanks for the feedback. Unfortunately, I don't have EEPROMs at hand to test, could you try to connect your EEPROM to SPI2 ? Long story short, we had to use SPI2 by default in binary SPI instead of SPI1 because of AVR programming uses very low speeds. See the Wiki for this : https://github.com/hydrabus/hydrafw/wiki/HydraFW-Binary-SPI-mode-guide#configure-spi-port-0b10000xyz If that doesn't work, could you please run the same commands with the |
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Hello @Baldanos, If I connect the chip to SPI2 flashrom (the forked one) recognizes the chip however it can't dump it: Here is a full -VVV log: |
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Hello @afiskon ! I found a bug in my flashrom patch. It should be fixed now. |
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Hello @Baldanos, I tested updated flashrom on AT45DB041D chip connected to SPI2 and it works: Thank you a lot! |
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@afiskon Great news ! FYI, I ported the patch to the current flashrom revision here : https://github.com/Baldanos/flashrom/tree/master I hope the PR will get merged soon. |
bvernoux
changed the title
Merged
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Since the PR (flashrom/flashrom#21) is open for nearly three years now, I took some time to reimplement the Serprog protocol in HydraFW. This works on any recent flashrom : |
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Thanks for the commit c10868f |
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HydraBus is supposed to be binary compatible with the Bus Pirate, so flashrom should work out of the box (flashrom has a bus pirate mode).
However, when trying to ID a chip using flashrom (the most basic operation before a read or write), flashrom just hangs:
Issue requested by "Balda" in IRC.
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