TUSB522P: TUSB522P support

for Q1: you need to connect RX1 to TX1 and TX2 to RX2 to by pass redriver. You can use 0 ohm resistor to connect host TX to connector TX and host RX to connector RX

For Q2: does customer has usb traffic log for the test when pass and fail?

Regards

brian

Brian:

  Any update from customer?

Brian Zhou

Hi Brian,

Can you please help take a look at the attached USB logs?

AMD is reporting a failure of TD1.09 test when running USB compliance. 

Hi Brian,

This is customer response.

From: Schwartz, Erika <Erika.Schwartz@amd.com>
Sent: Friday, December 9, 2022 8:44 AM
To: Goulet, Michael <Michael.Goulet@amd.com>; Hazel, Cameron <cameron.b.hazel@ti.com>; Heeg, Madison <mheeg@ti.com>; Schwartz, Erika <Erika.Schwartz@amd.com>; Talbert, Jason <jason.talbert@amd.com>; Lam, Ranger <ranger.lam@amd.com>; Kao, Kevin <Kevin.Kao@amd.com>; Lim, Leon <Leon.Lim@amd.com>; Guo, Jiahong <j-guo1@ti.com>; Butterfield, Brian <bbutterfield@ti.com>
Subject: [EXTERNAL] FW: TI USB RE-DRIVER TUSB522P USB compliance support

[AMD Official Use Only - General]

Hello Mr. Butterfield,

We appreciate your response on the rework.

Unfortunately, after the rework our platform was unreliable.  However, we would like to see continue moving forward with root causing our test failure.

Quick summary: We obtain a passing test case (at 100% rate) of the USB xHCICV compliance interface test on the non-redriver USB Host Controller, and a failing test case (at 99% rate) on the controller with the TI redriver in the path.

I am attaching two sets of zip files.  One zip contains passing log/trace on the non-redriver port and the other zip contains the failed logs/trace on the TI redriver port.

Would you please review the data and compare as per the redriver spec?   We appreciate your feedback on the trace analyzes as well as suggested next steps, if possible.

-erika

From: Butterfield, Brian <bbutterfield@ti.com>
Sent: Monday, November 14, 2022 10:57 AM
To: Goulet, Michael <Michael.Goulet@amd.com>; Hazel, Cameron <cameron.b.hazel@ti.com>; Heeg, Madison <mheeg@ti.com>
Cc: Schwartz, Erika <Erika.Schwartz@amd.com>; Talbert, Jason <jason.talbert@amd.com>; Lam, Ranger <ranger.lam@amd.com>; Kao, Kevin <Kevin.Kao@amd.com>; Lim, Leon <Leon.Lim@amd.com>; Guo, Jiahong <j-guo1@ti.com>
Subject: RE: TI USB RE-DRIVER TUSB522P USB compliance support

Hi Michael,

Let us know if this helps to make progress, but we do have a follow up question. 

“One of our platforms implements the TI TUSB522p redriver on a USB host controller.
 We would like to conduct some experiments which require removing or bypassing the redriver on the USB path.

I am reaching out to obtain some guidance as to what the connections are required to remove the redriver but keep the USB port functional.

2: We have the TI USB RE-DRIVER TUSB522P on our SS port on the AMD server reference platform and are having issues getting the port to pass the USB compliance TD1.09 test .   This is the interface test”

for Q1: you need to connect RX1 to TX1 and TX2 to RX2 to by pass redriver. You can use 0 ohm resistor to connect host TX to connector TX and host RX to connector RX

For Q2: does customer has usb traffic log for the test when pass and fail?

Thank you,

Brian

From: Goulet, Michael <Michael.Goulet@amd.com>
Sent: Friday, November 11, 2022 1:41 PM
To: Butterfield, Brian <bbutterfield@ti.com>; Hazel, Cameron <cameron.b.hazel@ti.com>; Heeg, Madison <mheeg@ti.com>
Cc: Schwartz, Erika <Erika.Schwartz@amd.com>; Talbert, Jason <jason.talbert@amd.com>; Lam, Ranger <ranger.lam@amd.com>; Kao, Kevin <Kevin.Kao@amd.com>; Lim, Leon <Leon.Lim@amd.com>; Guo, Jiahong <j-guo1@ti.com>
Subject: [EXTERNAL] RE: TI USB RE-DRIVER TUSB522P USB compliance support

[AMD Official Use Only - General]

Thank you. I appreciate that.

From: Butterfield, Brian <bbutterfield@ti.com>
Sent: Friday, November 11, 2022 3:41 PM
To: Goulet, Michael <Michael.Goulet@amd.com>; Hazel, Cameron <cameron.b.hazel@ti.com>; Heeg, Madison <mheeg@ti.com>
Cc: Schwartz, Erika <Erika.Schwartz@amd.com>; Talbert, Jason <jason.talbert@amd.com>; Lam, Ranger <ranger.lam@amd.com>; Kao, Kevin <Kevin.Kao@amd.com>; Lim, Leon <Leon.Lim@amd.com>; Guo, Jiahong <j-guo1@ti.com>
Subject: RE: TI USB RE-DRIVER TUSB522P USB compliance support

Hi Michael,

We’re starting to look into this.

Some key individuals who support this are out of office today but we are running this down in parallel until they get back. 

Thank you,

Brian

From: Goulet, Michael <Michael.Goulet@amd.com>
Sent: Friday, November 11, 2022 12:32 PM
To: Butterfield, Brian <bbutterfield@ti.com>; Hazel, Cameron <cameron.b.hazel@ti.com>; Heeg, Madison <mheeg@ti.com>
Cc: Schwartz, Erika <Erika.Schwartz@amd.com>; Talbert, Jason <jason.talbert@amd.com>; Lam, Ranger <ranger.lam@amd.com>; Kao, Kevin <Kevin.Kao@amd.com>; Lim, Leon <Leon.Lim@amd.com>
Subject: [EXTERNAL] TI USB RE-DRIVER TUSB522P USB compliance support

[AMD Official Use Only - General]

Brian, Cameron and Madison,

                We have the TI USB RE-DRIVER TUSB522P on our SS port on the AMD server reference platform and are having issues getting the port to pass the USB compliance TD1.09 test .   This is the interface test.

We need support from you to figure out how to get this test to consistently pass. 

 Do you have other users that have been able to get their designs to pass certification?

 Are there setting that we should be trying that will help this issue?

What other info do you need from us to get to the bottom of this?

Thnaks

Jiahong:

    What is this CV test? Do you have test description for TD1.09?

    Also for trace log of fail, it shows HC1-2nd-pass, it's pass or fail? Almost same as the other one

Regards

brian

I listed the failed logs/trace on the TI redriver port. The other is passing log/trace on the non-redriver port. Customer would like us to review the data and compare as per the redriver spec? I will ask them for test description of TD1.09.

So this is the trace for failed one with redriver?

I think so.

ok, let me check again, unplug in the trace look similar to the good one.

regards

brian

Jiahong:

    Can customer test with USBtreeview by plug flash driver in and out and works fine?

Regars

brian

keep ticket active