Mentions Tags More Cancel. Trademarks Privacy Policy Terms of Use. We have verified the assymetric pause is not enabled in the micrel driver. Ask a new question Ask a new question Cancel. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.

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Micrel KSZ causing repeated link up / link dow – Community Forums

Hope this helps others. Apr 24, 5: Menu Search through millions of questions and answers User.

TI is a global semiconductor design and manufacturing company. It looks like there is some electric problem on your board eg.

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. Other less possible reason of your problem could be PHY clocks, small but outside of tolerance deviation from required frquency could result in linx link loss. Has anyone had any success resolving this issue? Please upgrade to a Xilinx. Ethernet driver is generic and kinux depend on PHY.


Sometimes the loss of links come fairly closely spaced together in time. Keldy Ethernet driver is generic and doesn’t depend on PHY. If the CPU holds off for 50ms or so, then the link is stable and fine.

KSZ9031 on a SabreSD based board

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All content and materials on this site are provided “as is”. The newly created question will be automatically linked oinux this question. A little more insight into this: TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these ksz902rl, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right.

Could you skz9021rl share the petalinux version you used and device-tree modifications you made? We are glad that we were able to resolve this issue, and will now proceed to close this thread.


Phy GigaEthernet to replace AR8031 with KSZ9021 (micrel)

If you have further questions related to this thread, you may click “Ask a related question” below. Other times we can go 20 minutes or more without loosing link.

Go to Support forums. If you have a related question, please click the ” Ask a related question ” button in the top right corner. There is a very high probability of the link going down again. What was the final problem analysis and solution linuc this issue?

KSZ – Interface and Networking – Ethernet PHYs – Interface and Networking

In reply to Keldy: All forum topics Previous Topic Next Topic. Apr 19, Do you have another question? Apr 24, Apr 24, 1: We have a custom board we designed with the Micrel KSZ Then, when the phy restablishes link, the status is updated. liunx

Any help would be greatly appreciated.