hi, beta 2 installed and same issue.
12 beta 1, no ethernet after reboot
- jordixPI3
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April 9, 2024 at 6:15 AM - Thread is Resolved
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To be honest, no idea. I had similar issues with my board too. Sometimes it worked better and sometimes worse. I would say timing issue is most likely (that can be adjusted), but it could also be improper ethernet PHY power up sequence which can cause some issues with proper operations. For that I would need oscilloscope to measure but I would need to borrow one.
You can try if instead of rebooting, complete power off and then power on helps. That includes pulling out power cable. That way you can simulate first power on.
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Strange. I guess there is some issue in U-Boot or DT then.
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sorry, i dont understand what you mean
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Well, if you put in SD card, then there should be no issue rebooting, even if eMMC image is intact. It should boot from SD card in any case.
Just to be sure, you prepared fresh image? Not upgrade?
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FYI, I finally found datasheet for ethernet PHY, so I can experiment with more sensible settings. Maybe I can figure out more stable values.
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- Best Answer
jordixPI3 I updated test image here: http://jernej.libreelec.tv/test/opi3-lts/ Please test.
I tweaked RX delay on PHY and ethernet controller to be in sync with schematic and vendor kernel. It adds 450 ps delay in total, which may not seem much, but that's a lot when talking about gigabit ethernet. Additionally, I slightly tweaked reset timings, which will ensure PHY is properly powered up.
In any case, my quick test showed that it works.
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Great! I'm glad it works. I'll prepare PR next week. I guess you can use this image for foreseeable future.
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Thx! Big milestone for all OPi3 LTS users!
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one question, 12.0 release uploaded on wesnesday has ethernet issue fixed or will you launch new one?.
No, official LE12 release doesn't have this fix, but it will be in next point release. However, image that I uploaded is basically LE12 source + fix, so you can use it till point release.
