Building with SERDES=13_5_2 produces unbootable image

[ndoo]

Building with SERDES=13_5_2 produces unbootable image - green LED on RJ-45 port of carrier board blinks, but no output on serial.

Default of SERDES=8_5_2 boots fine and is able to display UEFI menu on micro-USB COM port as well as UEFI GOP output.

Tested with DDR_SPEED=2400 and DDR_SPEED=3200 with HyperX memory rated for 3200MT/s.

Carrier board is ClearFog CX LX2 rev 1.3 (part number: SRCFCXE000IV13), while COM is an early LX2160A-CEx7 rev 1.3.

[rabeeh]

Is this issue still open?
Please try with latest patches; SD1 protocol = 14 (single 100Gbps on DPMAC.1) was tested.

[ndoo]

Hi there, building with SERDES=13_5_2 still does not work, board constantly power cycles even before BL2 can load (i.e. no console output), on a Rev 1.3 COM.

14_5_2 does not work with the build scripts, there is no DTB at https://github.com/SolidRun/edk2-non-osi/tree/edk2-stable202105-lx2160acex7/Platform/SolidRun/LX2160aCex7/QoriqMcBinaryDtbs that supports a single 100G configuration.

The lack of DTBs also means that https://github.com/SolidRun/lx2160a_uefi does not support SERDES=14_5_2

[ndoo]

Hi @rabeeh is it possible to provide the necessary dtb?