Tegra K1 - CSI-B / CSI-C muxing

Autonomous Machines Jetson & Embedded Systems Jetson TK1
1

Greetings,

As per my understanding, in Tegra K1, there are two CSI controllers (Lets say CSI controller 1 and CSI controller 2).

CSI controller 1 is dedicated to CSI-A (x4 lane)

However, CSI controller 2 can be either connected to CSI-B (x4 lane) or CSI-C (x1 lane).

My question is, where is the muxing register for saying which CSI (CSI-B or CSI-C) should be routed to CSI controller 2?

Thanks and Regards,
Jai

2

Hi JaiAtEcon,

We had odm sensor interface to indicate the CSI.
Camera#1 uses 4 CSI lanes (CSIA[1:0] & CSIB[1:0]) by using NvOdmImagerSensorInterface_SerialA
Camera#2 uses a single lane (CSIE[0]) by using on CSI-E ; hence 1-lane camera using NvOdmImagerSensorInterface_SerialE

If camera#2 uses 4 CSI lanes, then need to use DSI_B as 2nd CSI x4 lanes interface.
Please see the Tegra K1 Embedded Platform Design Guide, see the MIPI CSI section.

Thanks

3

Hello kayccc,

Thanks for the information. But there should be some mux registers for the camera#2 to tell if I have connected 1-lane camera or 4-lanes camera (DSI-B lines).

For example, if I have connected both the cameras (1-lane and 4-lane) to camera#2 (hardware wise), which data will be routed to camera#2?

Thanks,
Jai Ganesh