DRA821U: CPSW2G + TSN demo Driver config?

Rio Chan

Part Number: DRA821U

We are testing the SDK 7.3 CPSW2G + TSN by following this doc:

https://software-dl.ti.com/jacinto7/esd/processor-sdk-linux-j7200/07_03_00_04/exports/docs/j7200/linux/Foundational_Components/Kernel/Kernel_Drivers/Network/CPSW2g.html#common-platform-time-sync-cpts-module

So, some questions:

#1. Is the CPSW2G + TSN natively working by using the SDK7.3 pre-build image? It seems "No"? please confirm.

#2. The driver config according the doc link as the above is for Kernel config? or the uboot config ? or Both? please confirm.

#3. I have verified the kernel config as the below checking result.

The left side is copied from the document.

The right side is copied from the SDK 7.3 kernel config for J7200.

Can you confirm the J7200 needs to use the left side configs? or the Right side configs?

And, I need to add the CPSW_ALE for the right side?

CONFIG_TI_DAVINCI_MDIO --> CONFIG_TI_DAVINCI_MDIO=y
CONFIG_TI_CPSW_ALE --> No exist in SDK7.3
CONFIG_TI_AM65_CPSW_NUSS --> CONFIG_TI_K3_AM65_CPSW_NUSS=y
CONFIG_TI_AM65_CPTS --> CONFIG_TI_K3_AM65_CPTS=y
CONFIG_TI_AM65_CPSW_TAS --> CONFIG_TI_AM65_CPSW_TAS=y
CONFIG_PHY_TI_GMII_SEL --> CONFIG_PHY_TI_GMII_SEL=y

4. In order to make it efficiency, please provide your J7200 (Not J721E) for the CPSW2G+ TSN entire configs in the "TXT" file here.

Just in case if there is any missing one.

THanks.

BR Rio

over 4 years ago

0 Vineet Roy over 4 years ago

TI__Mastermind 37435 points

Hi Rio,

I will verify at my end and come back.

Regards

Vineet

0 Rio Chan over 4 years ago in reply to Vineet Roy

TI__Genius 15015 points

Hi Roy:

#1. I have searched the entire Linux, there is only one possible ALE config:

#define __TI_CPSW_ALE_H__

#2. Obviously, we build the CPSW from the RTOS code on the R5F.

Please tell us what's the right config settings.

Please post the "working" defconfig for this CPSW2G + TSN demo.

THanks.

BR Rio

0 Rio Chan over 4 years ago in reply to Rio Chan

TI__Genius 15015 points

Any feedback?

0 Vineet Roy over 4 years ago in reply to Rio Chan

TI__Mastermind 37435 points

Hi Rio,

Sorry, no updates. I will prioritize this.

Regards

Vineet

0 Vineet Roy over 4 years ago in reply to Vineet Roy

TI__Mastermind 37435 points

Hi Rio,

See inline

Rio Chan said:
#1. Is the CPSW2G + TSN natively working by using the SDK7.3 pre-build image? It seems "No"? please confirm.

PTP is working natively. I haven't tested TSN features like TAS and IET but I do see that CONFIG_TI_AM65_CPSW_TAS is enabled in kernel config

Rio Chan said:
#2. The driver config according the doc link as the above is for Kernel config? or the uboot config ? or Both? please confirm.

It's for kernel only

Rio Chan said:
I have verified the kernel config as the below checking result.

What you have verified is correct, ALE seems to be natively supported by the driver. If you do ethtool -S eth0 then you will see all the ALE configurations. However I will raise a request to fix the documentation.

Rio Chan said:
4. In order to make it efficiency, please provide your J7200 (Not J721E) for the CPSW2G+ TSN entire configs in the "TXT" file here.

I am attaching the output of zcat /proc/config.gz here

7140.kernel_config.txt

Regards

Vineet

0 Rio Chan over 4 years ago in reply to Vineet Roy

TI__Genius 15015 points

Hi Roy:

THanks, I will test this and feedback the result if any.

BR Rio

0 Rio Chan over 4 years ago in reply to Rio Chan

TI__Genius 15015 points

Hi Roy:

Your config is the original setting config, may you double check if this is correct?

May you ask the RnD, if I want to test the TAS, if using the original config, is it working or not?

BR Rio

0 Rio Chan over 4 years ago in reply to Rio Chan

TI__Genius 15015 points

BTW, do we need to patch the DT binding to make this demo?

Please tell us if yes or no.

BR Rio

0 Vineet Roy over 4 years ago in reply to Rio Chan

TI__Mastermind 37435 points

Hi Rio,

Can you describe your problem ?

I have tried setting the schedule as described in "example schedule" section of the web page ? and it works as advertised. TAS is working as per my knowledge.

Regards

Vineet

0 Rio Chan over 4 years ago in reply to Vineet Roy

TI__Genius 15015 points

Hi Roy:

1 final question, in this doc: -->https://software-dl.ti.com/jacinto7/esd/processor-sdk-linux-j7200/07_03_00_04/exports/docs/j7200/linux/Foundational_Components/Kernel/Kernel_Drivers/Network/CPSW2g.html#common-platform-time-sync-cpts-module

It said:

PPS Pulse Per Second support

By default, PPS support for J7200 is implemented and enabled in TI SDK by wiring GENF1 output to HW3_TS_PUSH_EN input:

However, I check the dts, it;s not enabled on J7200, it's enabled on AM642x.

please see the attached pic.

So, is this really important to test the PTP even the PPS is not enabled?

0 Vineet Roy over 4 years ago in reply to Rio Chan

TI__Mastermind 37435 points

Hi Rio,

So is your TAS problem solved ?

I didn't see any reply from you on that.

Rio Chan said:
So, is this really important to test the PTP even the PPS is not enabled?

I will check on the PPS output and get back

Regards

Vineet

0 Rio Chan over 4 years ago in reply to Vineet Roy

TI__Genius 15015 points

Hi Roy:

TAS is working.

I will wait your PPS part.

THanks.

BR Rio

0 Jay Sun over 4 years ago in reply to Vineet Roy

Expert 1095 points

Hi Vineet

I have tried setting the schedule as described in "example schedule" section of the following web page,

(1)Before The EST demo, I try to ping EVM(leftside,IP:192.168.2.20) CPSW2g eth port from my NB eth port(rightside: IP: 192.168.2.10) as following, it's OK to ping each other.

(2) Then I try to run the steps to configure this schedule, EVM　linux cmd window shows :unable to connect to server : Connection time out

And in Wireshark log message show TCP Retransmission .

Could you point me to what I have to do to fix this error?

0 Vineet Roy over 4 years ago in reply to Rio Chan

TI__Mastermind 37435 points

Hi Rio,

PPS output is disabled in 7.3 firmware due to internal software incompatibility. It's a miss from our side that documentation has not been updated. I will file an internal ticket to track this.

Currently there's no immediate plan to fix this. Let's discuss over email in case of a requirement.

Regards

Vineet

0 Vineet Roy over 4 years ago in reply to Jay Sun

TI__Mastermind 37435 points

Hi Jay,

Can you file another E2E for your issue ? We try to keep issues separate on E2E so it's easy for someone else to search for a problem.

Regards

Vineet

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DRA821U: CPSW2G + TSN demo Driver config?