How to make the dtb file effective on R28.2

Autonomous Machines Jetson & Embedded Systems Jetson TX2
1

On r28.1 we put the dtb file to the kernel/dtb directory and flash the system，it will effective ,but on r28.2,it does not work.in other words,the changed part are not all effective.such like I enabled the usb_ss0 and usb_ss2,only the usb_ss0 worked .
How to make the dtb file effective on R28.2?

2

Please refer to Jetson/TX2 DTB - eLinux.org

3

@DaneLLL
thank you for the reply.
I have seen this link.However, this does not apply to R28.2

4

@DaneLLL
thank you for the reply.
I have seen this link.However, this does not apply to R28.2

5

Hi qinyyuu,
So you following the steps to flash kernel-dtb but do not work?
Have you checked device tree at /proc/device-tree ?

6

@DaneLLL
Yes,I followed the steps to flash kernel-dtb it does not work.only part are working.
In the flashing ,the dtb file have compiled?

7

@DaneLLL
Yes,I followed the steps to flash kernel-dtb it does not work.only part are working.
In the flashing ,the dtb file have compiled?

8

No, you have to compile it to have new dtb and then flash via the command.

9

Hi DaneLLL
Yes, I have already compiled it and put it to kernel/dtb.
I mean in the process of flashing,will be the script flash.sh recompile?

10

Flash.sh just places a copy of the file in the Jetson dtb partition. You’d have to copy in a correctly modified version to the correct place before running the flash.sh command.

11

Hi linuxdev
I put the dtb file into kernel/dtb. Is this correct?
The same modified dtb file, I use other method all is working. However, the flash method is not acceptable

12

What did you name the file? I’m thinking the “tegra186-quill-p3310-1000-c03-00-base.dtb” file is the correct one, but I’d have to double check to be certain.

13

Hi qinyyuu,
Please try to replace all tegra186-quill-p3310-1000-c03-00-base.dtb
[url]TX2 usb2.0 not working,how to fix it - Jetson TX2 - NVIDIA Developer Forums