Jetson Orin: DP Lane0 and Lane2

[liyutai]

Hi NV Support Team
Some confuse about Orin_Jetson_Series_Pinmux_Config for DP Lane0 / Lane2 with Jetson_AGX_Orin_Design_Guide_DG-10653-001_v1.0.
A51&A50: from pinmux DP0_TXP0/N0. but from DG the used as LAN2+/2- ( DP0_TXP2/N2)
Which one is correct?

Thanks
Yutai

[Trumany]

The pinmux default usage show the HDMI mapping and not the DP mapping as used on the DevKit. Lanes 0/2 should be swapped for DP usage.

[liyutai]

So our HW design can keep same as P3737_A04_OrCAD_schematics.pdf as it default used as HDMI mapping? Then SW side to swap for DP usage only.

[Trumany]

It is DP default in P3737 schematic. You only need to follow the HDMI part in Design Guide to make circuit design.

[liyutai]

From pinmux DP0_TXP0/N0 is correct ?
As the design guideline for DP connector the A51 function is LANE2 not LANE0.

[Trumany]

Current SW already has WAR for this.

[liyutai]

What is meas: WAR?

[Trumany]

It means workaround.

[liyutai]

Thanks
So i will follow up P3737 design.
A50&A51 used as DP_TX2_N/P connect to DP connector LANE 2N/P ( Pin9 &7)
Because your SW already have workaround for this case.
Is it correct?

Yutai

[Trumany]

Follow the Design Guide for HDMI or DP design.