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In the meanwhile we found out that the problems were caused by the oscillator we were using. After seeing your post, we checked the oscillator datasheet once more, the one we have seems to be worse than Si in terms of jitter specs.
Apr 24, 5: We are facing the same issue with our ksa9021rl KSZ phy going up then down immediately in gigabit mode. Please upgrade to a Xilinx. The issue was 10x worse when connecting two such ports to each other, then no stable link could be established at all.
Phy GigaEthernet to replace AR8031 with KSZ9021 (micrel)
If you have a related question, please click the ” Ask a related question ” button in the top right corner. Any help would be greatly appreciated.
There is a very high probability of the link going down again. Sometimes the loss of links come fairly closely spaced together in time.
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Apr 24, 3: Has this issue been resolved? Apr 24, 1: We are glad that we were able to resolve this issue, and will now proceed to close this thread. Other times we can go 20 minutes or more without loosing link.
Apr 24, All forum linud Previous Topic Next Topic.
Micrel KSZ causing repeated link up / link dow – Community Forums
If the phy has no errata, then generic phy driver in the linux should work fine. In reply to Keldy: ChromeFirefoxKsz9021el Explorer 11Safari. We will try alternative oscillators.
If you have further questions related to this thread, you may click “Ask a related question” below. Content on this site may contain or be subject to specific guidelines or limitations on use. One problem we have is that while the driver works and we have network connectivity under Linux, we randomly get “link down” and “link up” messages in Linux.
Has anyone had any success resolving this issue? TI is a global semiconductor design and manufacturing company. We have a custom board we designed with the Micrel KSZ Do you have another question?