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verified publisher icon Xilinx

Infinite loop based on hardware behavior

Open jwolfm98 opened this issue 9 months ago • 2 comments

https://github.com/Xilinx/embeddedsw/blob/0f463342b5c42ff17690d396fb74381fb13168ab/ThirdParty/sw_services/lwip220/src/lwip-2.2.0/contrib/ports/xilinx/netif/xaxiemacif_physpeed.c#L234

jwolfm98 avatar Apr 09 '25 03:04 jwolfm98

Not sure if this will help as we are still stuck with Vitis Unified 2023.2 and lwIP 213 and are using a KR260 board bare-metal/FreeRTOS.

We found that auto negotiation always failed unless we connected all the Ethernet connections to a switch. Then it would succeed. We ended up changing to a fixed 1000 speed rather than rely on auto negotiation. Later, we found out that the KR260 board has a shared MDIO line which is what was causing the issues. The PetaLinux driver knows how to deal with this, but lwIP does not.

digitalnumeric avatar Apr 09 '25 13:04 digitalnumeric

We added support for the common MDIO handling in lwip for kr260 in 2025.1 release.

venodela avatar Apr 11 '25 07:04 venodela