To be enable RGMII for AGX Orin Custom Board

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Orin
,
1

Hello,

We are trying to be enable RGMII on AGX Orin.

I found the device-tree code as below:

Could I input this code to “tegra234-ethernet-3737-0000.dtsi”?

And case of AGX Xavier, It has device tree code for “ethernet@2490000” in “tegra194-power-tree-p2888-0001-p2822-1000.dtsi”
image

Does same thing need to AGX Orin?
Do I need to put the code to “tegra234-power-tree-p3701-0000-p3737-0000.dtsi” if does it need?

2

You only need to configure the things mentioned in the developer guide document.

3

Hello,

I tried to be enable RGMII as follow:

I refer the dts file from above and modify dtsi file as below:

image
image960×1040 46 KB

I can see the messages in related to RGMII address, but it’s all.
There is nothing more than it as I known.
5.device-tree_all3_bootlog.txt (91.3 KB)

[ 12.484600] nvethernet 2310000.ethernet: Adding to iommu group 52
[ 12.490996] nvethernet 2310000.ethernet: failed to read skip mac reset flag, default 0
[ 12.499163] nvethernet 2310000.ethernet: failed to read MDIO address
[ 12.505728] nvethernet 2310000.ethernet: setting to default DMA bit mask
[ 12.759550] nvethernet 2310000.ethernet: Ethernet MAC address: 48:b0:2d:95:8d:14
[ 12.768069] nvethernet 2310000.ethernet: Macsec not enabled
[ 12.773805] nvethernet 2310000.ethernet: Macsec: Reduced MTU: 1466 Max: 16383
[ 12.783083] nvethernet 2310000.ethernet: eth0 (HW ver: 53) created with 8 DMA channels

There is no eth0 port on ifconfig list after boot.
So, I tried to be up the eth0, It doesn’t work.
image

And I have one more question about pinmux.
I used pinmux spreadsheet as below:

image
image757×229 11.5 KB

image
image756×28 2.41 KB

Orin-jetson_agx_orin_rgmii-gpio-default.dtsi (3.9 KB)
Orin-jetson_agx_orin_rgmii-pinmux.dtsi (64.7 KB)

I can’t find any different on the dmesg before and after about pinmux changes for eqos.

4

Your pinmux totally not matches the result on document.

5

Sorry, I didn’t catch what you mean “the result on document”.

6

Open the L4T developer guide document. Search “RGMII” in the document and it will lead you to the guide.

7

Hello, Wayne

I tried to apply L4T Guide what you commented
https://docs.nvidia.com/jetson/archives/r35.3.1/DeveloperGuide/text/HR/JetsonModuleAdaptationAndBringUp/JetsonAgxOrinSeries.html#for-rgmii

tegra234-ethernet-3737-0000.dtsi (2.2 KB)
tegra234-mb1-bct-pinmux-p3701-0000-a04.dtsi (62.5 KB)

The result is not different from previous.

step2_status
step2_status960×1040 110 KB

Is there anymore point what should I check?

8

  1. The device tree you attached is eve not completed.

  2. What is the result of cat /proc/interrupts |grep eth? Does the value increase when you ifconfig up down the RGMII?

9

If interrupt does not go up, please check the register as this post said.

Your pinmux may still have problem.

10

Thank you for the reply

There is no list about eth0 on interrupts.
And “ifconfig eth0 up” doesn’t work as below

image

Could you let me know what information does not updated to my device tree??
pinmux cfg file?? ethernet dtsi file? or both?
I’d be appreciate, if you point it out.

11

It means pinmux is still wrong. Check the register as above post said.

12

Are gpio status correct?
image

13

Not only GPIO. Every pin there should have correct state.

14

Previous pinmux file has the missed point what I didn’t changed.
image
It has fixed now.

I checked out several times the pinmux and l4t guide.
And I can’t find anymore different,
tegra234-mb1-bct-pinmux-p3701-0000-a04.dtsi (62.5 KB)

But the result are same.

15

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.