AuvideaJNX30 with 4 cameras

[PierrickIntom]

Hello,

I would like to connect 4 IMX183 cameras to my Auvidea JNX30 Carrier board with a Jetson Xavier NX. I modified the devicetree before flashing. When testing, three devices were recognized (/dev/video0, video1 and video2), but not the fourth one.

For the setup I changed the devicetree and put the four VC_MIPI_CAM to Enabled. And then deleted those lines:

#if VC_MIPI_CAM_AB == 1 && VC_MIPI_CAM_CD == 1
    #define VC_MIPI_CAMERAS 2
#else
    #define VC_MIPI_CAMERAS 1
#endif

And replaced them by:

#define VC_MIPI_CAMERAS 4

I also selected 2 lanes for VC_MIPI_LANES and changed 4 CSI lanes to 8, as I want to have 4 cameras with 2 lanes each:

#if VC_MIPI_LANES == 2
    #define BUS_WIDTH 2
    #define NUM_LANES "2" 
    #define NUM_CSI_LANES 8
#endif

I then set the values of the IMX183 four times, for each CSI interface. Could you please confirm that my changes in the devicetree are correct for 4 cameras ?

[bazo80]

Hello @PierrickIntom ,

I've seen, that the dtsi for the Xavier on JNX30 has a bus-width = <1>; in the channel section of cam E and F.
It should be bus-width = <BUS_WIDTH>;

Hope that helps a little bit.

best regards