Subject: RE: AST2750 - Evaluation board Issues/questions
From: "Kim, LingHuat (Sam)" <[email-masked]>
To: Dwarka Partani <[email-masked]>, "Prabhu, Mahesh" <[email-masked]>
Cc: Yunlin Tang <[email-masked]>, "Kumar, Ashok2" <[email-masked]>, David Peng <[email-masked]>, Ryan Chen <[email-masked]>, Paul Huang <[email-masked]>, "Venkatesh, Supreeth" <[email-masked]>, Charles Kuan <[email-masked]>, "Rathinasabapathi, Rajaganesh" <[email-masked]>, "GovardhanaVenkata, Sreedhar" <[email-masked]>, Jay Xu <[email-masked]>
Date: Mon, 25 Mar 2024 21:49:45 +0000

[AMD Official Use Only - General]

Hi Dwarka,

FPGA captured following information when it reaches “Accept” state. Is the Id & capabilities match with the default setting of AST2700 Eval Board?

Regards,
Sam

From: Dwarka Partani <[email-masked]>
Sent: Tuesday, March 26, 2024 5:16 AM
To: Prabhu, Mahesh <[email-masked]>
Cc: Yunlin Tang <[email-masked]>; Kumar, Ashok2 <[email-masked]>; David Peng <[email-masked]>; Ryan Chen <[email-masked]>; Paul Huang <[email-masked]>; Venkatesh, Supreeth <[email-masked]>; Kim, LingHuat (Sam) <[email-masked]>; Charles Kuan <[email-masked]>; Rathinasabapathi, Rajaganesh <[email-masked]>; GovardhanaVenkata, Sreedhar <[email-masked]>; Jay Xu <[email-masked]>
Subject: Re: AST2750 - Evaluation board Issues/questions

Caution: This message originated from an External Source. Use proper caution when opening attachments, clicking links, or responding.

Mahesh,
Thanks for the update. Assuming no help is needed from ASPEED side for the bring up?
Dwarka

On Mar 25, 2024, at 10:57 AM, Prabhu, Mahesh <[email-masked]<mailto:[email-masked]>> wrote:

[AMD Official Use Only - General]

Hi Dwarka,
Just a quick update that we are able to go “Accept” state. Bring-up is in progress.
Regards
-Mahesh

From: Dwarka Partani <[email-masked]<mailto:[email-masked]>>
Sent: Wednesday, March 20, 2024 10:50 PM
To: Prabhu, Mahesh <[email-masked]<mailto:[email-masked]>>; Yunlin Tang <[email-masked]<mailto:[email-masked]>>; Kumar, Ashok2 <[email-masked]<mailto:[email-masked]>>
Cc: David Peng <[email-masked]<mailto:[email-masked]>>; Ryan Chen <[email-masked]<mailto:[email-masked]>>; Paul Huang <[email-masked]<mailto:[email-masked]>>; Venkatesh, Supreeth <[email-masked]<mailto:[email-masked]>>; Kim, LingHuat (Sam) <[email-masked]<mailto:[email-masked]>>; Charles Kuan <[email-masked]<mailto:[email-masked]>>; Rathinasabapathi, Rajaganesh <[email-masked]<mailto:[email-masked]>>; GovardhanaVenkata, Sreedhar <[email-masked]<mailto:[email-masked]>>; Jay Xu <[email-masked]<mailto:[email-masked]>>
Subject: RE: AST2750 - Evaluation board Issues/questions

[AMD Official Use Only - General]

Caution: This message originated from an External Source. Use proper caution when opening attachments, clicking links, or responding.

Mahesh,
Thanks for the update. Do let us know when you get to Link training or if you need any assistance regarding AST2700 Evaluation board.
-Dwarka

From: Prabhu, Mahesh <[email-masked]<mailto:[email-masked]>>
Sent: Tuesday, March 19, 2024 9:18 PM
To: Dwarka Partani <[email-masked]<mailto:[email-masked]>>; Yunlin Tang <[email-masked]<mailto:[email-masked]>>; Kumar, Ashok2 <[email-masked]<mailto:[email-masked]>>
Cc: David Peng <[email-masked]<mailto:[email-masked]>>; Ryan Chen <[email-masked]<mailto:[email-masked]>>; Paul Huang <[email-masked]<mailto:[email-masked]>>; Venkatesh, Supreeth <[email-masked]<mailto:[email-masked]>>; Kim, LingHuat (Sam) <[email-masked]<mailto:[email-masked]>>; Charles Kuan <[email-masked]<mailto:[email-masked]>>; Rathinasabapathi, Rajaganesh <[email-masked]<mailto:[email-masked]>>; GovardhanaVenkata, Sreedhar <[email-masked]<mailto:[email-masked]>>; Jay Xu <[email-masked]<mailto:[email-masked]>>
Subject: RE: AST2750 - Evaluation board Issues/questions

[AMD Official Use Only - General]

Hi Dwarka,
We are still working on this. Currently, We are setting up the environment to be able to get debug data out of Marley.

Based on Monday’s result, it looks like 2700 is able to detect if Marley is powered or not. With Marley powered off, we see the TX clock/data signals are in bursts of 3 msec, whereas after powering up Marley(which results in 2700 receiving RX clock/data) the TX clock/data is continuous.
I will keep you posted as soon as we have some update.

Regards
-Mahesh

From: Dwarka Partani <[email-masked]<mailto:[email-masked]>>
Sent: Wednesday, March 20, 2024 6:18 AM
To: Prabhu, Mahesh <[email-masked]<mailto:[email-masked]>>; Yunlin Tang <[email-masked]<mailto:[email-masked]>>; Kumar, Ashok2 <[email-masked]<mailto:[email-masked]>>
Cc: David Peng <[email-masked]<mailto:[email-masked]>>; Ryan Chen <[email-masked]<mailto:[email-masked]>>; Paul Huang <[email-masked]<mailto:[email-masked]>>; Venkatesh, Supreeth <[email-masked]<mailto:[email-masked]>>; Kim, LingHuat (Sam) <[email-masked]<mailto:[email-masked]>>; Charles Kuan <[email-masked]<mailto:[email-masked]>>; Rathinasabapathi, Rajaganesh <[email-masked]<mailto:[email-masked]>>; GovardhanaVenkata, Sreedhar <[email-masked]<mailto:[email-masked]>>; Jay Xu <[email-masked]<mailto:[email-masked]>>
Subject: RE: AST2750 - Evaluation board Issues/questions

[AMD Official Use Only - General]

Caution: This message originated from an External Source. Use proper caution when opening attachments, clicking links, or responding.

Mahesh,
Any progress with LTPI communications? Just checking to see if there is anything you need from ASPEED?
-Dwarka

From: Dwarka Partani
Sent: Monday, March 18, 2024 11:05 AM
To: Prabhu, Mahesh <[email-masked]<mailto:[email-masked]>>; Yunlin Tang <[email-masked]<mailto:[email-masked]>>; Kumar, Ashok2 <[email-masked]<mailto:[email-masked]>>
Cc: David Peng <[email-masked]<mailto:[email-masked]>>; Ryan Chen <[email-masked]<mailto:[email-masked]>>; Paul Huang <[email-masked]<mailto:[email-masked]>>; Venkatesh, Supreeth <[email-masked]<mailto:[email-masked]>>; Kim, LingHuat (Sam) <[email-masked]<mailto:[email-masked]>>; Charles Kuan <[email-masked]<mailto:[email-masked]>>; Rathinasabapathi, Rajaganesh <[email-masked]<mailto:[email-masked]>>; GovardhanaVenkata, Sreedhar <[email-masked]<mailto:[email-masked]>>; Jay Xu <[email-masked]<mailto:[email-masked]>>
Subject: RE: AST2750 - Evaluation board Issues/questions

Mahesh,
Thanks for the update. So, the clock is indeed at 25MHz as per the LTPI specification requirements.
-Dwarka

From: Prabhu, Mahesh <[email-masked]<mailto:[email-masked]>>
Sent: Monday, March 18, 2024 10:24 AM
To: Dwarka Partani <[email-masked]<mailto:[email-masked]>>; Yunlin Tang <[email-masked]<mailto:[email-masked]>>; Kumar, Ashok2 <[email-masked]<mailto:[email-masked]>>
Cc: David Peng <[email-masked]<mailto:[email-masked]>>; Ryan Chen <[email-masked]<mailto:[email-masked]>>; Paul Huang <[email-masked]<mailto:[email-masked]>>; Venkatesh, Supreeth <[email-masked]<mailto:[email-masked]>>; Kim, LingHuat (Sam) <[email-masked]<mailto:[email-masked]>>; Charles Kuan <[email-masked]<mailto:[email-masked]>>; Rathinasabapathi, Rajaganesh <[email-masked]<mailto:[email-masked]>>; GovardhanaVenkata, Sreedhar <[email-masked]<mailto:[email-masked]>>; Jay Xu <[email-masked]<mailto:[email-masked]>>
Subject: RE: AST2750 - Evaluation board Issues/questions

[AMD Official Use Only - General]

Hi Dwarka,
I checked the LTPI signals on the EVB at the SATA connector and both the TX and RX signals looked fine.
The adapter cable we made has the AST2700_TX_DATA and AST2700_TX_CLK swapped. We will correct this and update you on the link sttus.

Regards
-Mahesh

From: Dwarka Partani <[email-masked]<mailto:[email-masked]>>
Sent: Friday, March 15, 2024 11:40 PM
To: Prabhu, Mahesh <[email-masked]<mailto:[email-masked]>>; Yunlin Tang <[email-masked]<mailto:[email-masked]>>; Kumar, Ashok2 <[email-masked]<mailto:[email-masked]>>
Cc: David Peng <[email-masked]<mailto:[email-masked]>>; Ryan Chen <[email-masked]<mailto:[email-masked]>>; Paul Huang <[email-masked]<mailto:[email-masked]>>; Venkatesh, Supreeth <[email-masked]<mailto:[email-masked]>>; Kim, LingHuat (Sam) <[email-masked]<mailto:[email-masked]>>; Charles Kuan <[email-masked]<mailto:[email-masked]>>; Rathinasabapathi, Rajaganesh <[email-masked]<mailto:[email-masked]>>; GovardhanaVenkata, Sreedhar <[email-masked]<mailto:[email-masked]>>; Jay Xu <[email-masked]<mailto:[email-masked]>>
Subject: RE: AST2750 - Evaluation board Issues/questions

[AMD Official Use Only - General]

Caution: This message originated from an External Source. Use proper caution when opening attachments, clicking links, or responding.

Thanks Mahesh.
Let’s work together to get the LTPI interface compatibility tested. We will explore if there is any additional information or configuration options that are available from the LTPI Master side to work with AMD LTPI Slave.
-Dwarka

From: Prabhu, Mahesh <[email-masked]<mailto:[email-masked]>>
Sent: Friday, March 15, 2024 9:28 AM
To: Dwarka Partani <[email-masked]<mailto:[email-masked]>>; Yunlin Tang <[email-masked]<mailto:[email-masked]>>; Kumar, Ashok2 <[email-masked]<mailto:[email-masked]>>
Cc: David Peng <[email-masked]<mailto:[email-masked]>>; Ryan Chen <[email-masked]<mailto:[email-masked]>>; Paul Huang <[email-masked]<mailto:[email-masked]>>; Venkatesh, Supreeth <[email-masked]<mailto:[email-masked]>>; Kim, LingHuat (Sam) <[email-masked]<mailto:[email-masked]>>; Charles Kuan <[email-masked]<mailto:[email-masked]>>; Rathinasabapathi, Rajaganesh <[email-masked]<mailto:[email-masked]>>; GovardhanaVenkata, Sreedhar <[email-masked]<mailto:[email-masked]>>; Jay Xu <[email-masked]<mailto:[email-masked]>>
Subject: RE: AST2750 - Evaluation board Issues/questions

[AMD Official Use Only - General]

Hi Dwarka,
I will get the LTPI trace and share any findings as to what is happening on the wires on Monday.
Regards
-Mahesh

From: Dwarka Partani <[email-masked]<mailto:[email-masked]>>
Sent: Friday, March 15, 2024 9:31 PM
To: Prabhu, Mahesh <[email-masked]<mailto:[email-masked]>>; Yunlin Tang <[email-masked]<mailto:[email-masked]>>; Kumar, Ashok2 <[email-masked]<mailto:[email-masked]>>
Cc: David Peng <[email-masked]<mailto:[email-masked]>>; Ryan Chen <[email-masked]<mailto:[email-masked]>>; Paul Huang <[email-masked]<mailto:[email-masked]>>; Venkatesh, Supreeth <[email-masked]<mailto:[email-masked]>>; Kim, LingHuat (Sam) <[email-masked]<mailto:[email-masked]>>; Charles Kuan <[email-masked]<mailto:[email-masked]>>; Rathinasabapathi, Rajaganesh <[email-masked]<mailto:[email-masked]>>; GovardhanaVenkata, Sreedhar <[email-masked]<mailto:[email-masked]>>; Jay Xu <[email-masked]<mailto:[email-masked]>>
Subject: RE: AST2750 - Evaluation board Issues/questions

[AMD Official Use Only - General]

Caution: This message originated from an External Source. Use proper caution when opening attachments, clicking links, or responding.

BTW are you able to capture LTPI interface traces? Do you not see the LTPI Master initiate cycles with default 25MHz clock?
-Dwarka

From: Dwarka Partani
Sent: Friday, March 15, 2024 9:00 AM
To: 'Prabhu, Mahesh' <[email-masked]<mailto:[email-masked]>>; Yunlin Tang <[email-masked]<mailto:[email-masked]>>; Kumar, Ashok2 <[email-masked]<mailto:[email-masked]>>
Cc: David Peng <[email-masked]<mailto:[email-masked]>>; Ryan Chen <[email-masked]<mailto:[email-masked]>>; Paul Huang <[email-masked]<mailto:[email-masked]>>; Venkatesh, Supreeth <[email-masked]<mailto:[email-masked]>>; Kim, LingHuat (Sam) <[email-masked]<mailto:[email-masked]>>; Charles Kuan <[email-masked]<mailto:[email-masked]>>; Rathinasabapathi, Rajaganesh <[email-masked]<mailto:[email-masked]>>; GovardhanaVenkata, Sreedhar <[email-masked]<mailto:[email-masked]>>; Jay Xu <[email-masked]<mailto:[email-masked]>>
Subject: RE: AST2750 - Evaluation board Issues/questions

Mahesh,
Thanks for sharing the LTPI Slave side details. We will check with our team and get back to you.
-Dwarka

From: Prabhu, Mahesh <[email-masked]<mailto:[email-masked]>>
Sent: Thursday, March 14, 2024 11:40 PM
To: Yunlin Tang <[email-masked]<mailto:[email-masked]>>; Kumar, Ashok2 <[email-masked]<mailto:[email-masked]>>; Dwarka Partani <[email-masked]<mailto:[email-masked]>>
Cc: David Peng <[email-masked]<mailto:[email-masked]>>; Ryan Chen <[email-masked]<mailto:[email-masked]>>; Paul Huang <[email-masked]<mailto:[email-masked]>>; Venkatesh, Supreeth <[email-masked]<mailto:[email-masked]>>; Kim, LingHuat (Sam) <[email-masked]<mailto:[email-masked]>>; Charles Kuan <[email-masked]<mailto:[email-masked]>>; Rathinasabapathi, Rajaganesh <[email-masked]<mailto:[email-masked]>>; GovardhanaVenkata, Sreedhar <[email-masked]<mailto:[email-masked]>>; Jay Xu <[email-masked]<mailto:[email-masked]>>
Subject: RE: AST2750 - Evaluation board Issues/questions

[AMD Official Use Only - General]

Hi Yunlin,
We are still seeing link-failure after following the doc.
Can you please let us know if the code you loaded at the box below will work with Freq of 25 MHz ? The LTPI IP on our FPGA is currently capable of working at only 25 MHz.
The document has a snippet below and I just want to confirm if the current binary is capable of establishing a link at 25 MHz.

Here is the LTPI features enabled in Marley HPM FPGA.

  1.  Link Speed Capabilities: Base Freq x1 (25MHz only), Single Data Rate (SDR)
  2.  Supported Channels: GPIO channel, I2C/SMBus Channel
  3.  GPIO Channel Capabilities:

     *   Number of Normal Latency GPIO: 128
     *   Number of Low Latency GPIO: 16

  1.  I2C Channel Capabilities:

     *   I2C/SMBus0 Enable=1
     *   I2C/SMBus0 Speed=0 (100KHz)
     *   Echo Supported =1 (Enabled)

Regards
-Mahesh

From: Yunlin Tang <[email-masked]<mailto:[email-masked]>>
Sent: Wednesday, March 13, 2024 12:52 AM
To: Kumar, Ashok2 <[email-masked]<mailto:[email-masked]>>; Dwarka Partani <[email-masked]<mailto:[email-masked]>>
Cc: David Peng <[email-masked]<mailto:[email-masked]>>; Ryan Chen <[email-masked]<mailto:[email-masked]>>; Paul Huang <[email-masked]<mailto:[email-masked]>>; Venkatesh, Supreeth <[email-masked]<mailto:[email-masked]>>; Kim, LingHuat (Sam) <[email-masked]<mailto:[email-masked]>>; Charles Kuan <[email-masked]<mailto:[email-masked]>>; Rathinasabapathi, Rajaganesh <[email-masked]<mailto:[email-masked]>>; GovardhanaVenkata, Sreedhar <[email-masked]<mailto:[email-masked]>>; Jay Xu <[email-masked]<mailto:[email-masked]>>; Prabhu, Mahesh <[email-masked]<mailto:[email-masked]>>
Subject: RE: AST2750 - Evaluation board Issues/questions

[AMD Official Use Only - General]

Caution: This message originated from an External Source. Use proper caution when opening attachments, clicking links, or responding.

Hi Ashok,

In order to run AST2700 EVB with LTPI image, you need to connect to your LTPI FPGA to AST2700 EVB and put AST2700 in LTPI mode using jumper.  I uploaded a package “toAMD.zip” to a BOX location. The package contains AST2700 LTPI image binary and a document about how to connect LTPI FPGA to AST2700 EVB. Here’s the download link https://aspeedtech.box.com/s/i01w6ga17u5ad1ip0rvwnlnz1horpq4s . The link will be expired on incoming Monday. Please let us know if you have any questions or issues.

Regards!
Yunlin

From: Yunlin Tang
Sent: Monday, March 11, 2024 12:19 PM
To: Kumar, Ashok2 <[email-masked]<mailto:[email-masked]>>; Dwarka Partani <[email-masked]<mailto:[email-masked]>>
Cc: David Peng <[email-masked]<mailto:[email-masked]>>; Ryan Chen <[email-masked]<mailto:[email-masked]>>; Paul Huang <[email-masked]<mailto:[email-masked]>>; Venkatesh, Supreeth <[email-masked]<mailto:[email-masked]>>; Kim, LingHuat (Sam) <[email-masked]<mailto:[email-masked]>>; Charles Kuan <[email-masked]<mailto:[email-masked]>>; Rathinasabapathi, Rajaganesh <[email-masked]<mailto:[email-masked]>>; GovardhanaVenkata, Sreedhar <[email-masked]<mailto:[email-masked]>>; Jay Xu <[email-masked]<mailto:[email-masked]>>; Prabhu, Mahesh <[email-masked]<mailto:[email-masked]>>
Subject: RE: AST2750 - Evaluation board Issues/questions

Hi Ashok,

We’ll release the patches next month. If you need it now, let me check internally.

I also tried the build image from public github (released SDK 09.00) and didn’t encounter the issue as you did. It seems that uboot-spl/uboot has been corrupted during the image update at your end. Do you mean you can’t AC cycle of the EVB remotely?  Do you have smart power socket eg TP link or network power management socket eg APC @www.apc.com?

Regards!
Yunlin

From: Kumar, Ashok2 <[email-masked]<mailto:[email-masked]>>
Sent: Monday, March 11, 2024 11:15 AM
To: Yunlin Tang <[email-masked]<mailto:[email-masked]>>; Dwarka Partani <[email-masked]<mailto:[email-masked]>>
Cc: David Peng <[email-masked]<mailto:[email-masked]>>; Ryan Chen <[email-masked]<mailto:[email-masked]>>; Paul Huang <[email-masked]<mailto:[email-masked]>>; Venkatesh, Supreeth <[email-masked]<mailto:[email-masked]>>; Kim, LingHuat (Sam) <[email-masked]<mailto:[email-masked]>>; Charles Kuan <[email-masked]<mailto:[email-masked]>>; Rathinasabapathi, Rajaganesh <[email-masked]<mailto:[email-masked]>>; GovardhanaVenkata, Sreedhar <[email-masked]<mailto:[email-masked]>>; Jay Xu <[email-masked]<mailto:[email-masked]>>; Prabhu, Mahesh <[email-masked]<mailto:[email-masked]>>
Subject: RE: AST2750 - Evaluation board Issues/questions

[AMD Official Use Only - General]

Thanks Yunlin,

Is it possible to share the patches to test LTPI build ?

And what about other issues mentioned about remote recovery ? is there any workaround ?

=== >

  1.  Recover using SF100 :

I can recover the system by using SF100 and flashing “as2700-default” but I noticed that we need to press the reset button physically, by powering cycle system does not boot.

That’s blocking us to use the remote recovery, any help would be appreciated.

Regards,
Ashok

From: Yunlin Tang <[email-masked]<mailto:[email-masked]>>
Sent: Saturday, March 9, 2024 2:02 AM
To: Kumar, Ashok2 <[email-masked]<mailto:[email-masked]>>; Dwarka Partani <[email-masked]<mailto:[email-masked]>>; Venkatesh, Supreeth <[email-masked]<mailto:[email-masked]>>; Prabhu, Mahesh <[email-masked]<mailto:[email-masked]>>; Kim, LingHuat (Sam) <[email-masked]<mailto:[email-masked]>>
Cc: David Peng <[email-masked]<mailto:[email-masked]>>; Ryan Chen <[email-masked]<mailto:[email-masked]>>; Paul Huang <[email-masked]<mailto:[email-masked]>>; Charles Kuan <[email-masked]<mailto:[email-masked]>>; Rathinasabapathi, Rajaganesh <[email-masked]<mailto:[email-masked]>>; GovardhanaVenkata, Sreedhar <[email-masked]<mailto:[email-masked]>>; Jay Xu <[email-masked]<mailto:[email-masked]>>
Subject: RE: AST2750 - Evaluation board Issues/questions

[AMD Official Use Only - General]

Caution: This message originated from an External Source. Use proper caution when opening attachments, clicking links, or responding.

Hi Ashok,

“AST2700-default-ltpi” build from SDK 09.00 at our public github won’t work on EVB. Some settings for LTPI in u-boot-spl has not been pushed to the public Github yet.

Regards!
Yunlin

From: Kumar, Ashok2 <[email-masked]<mailto:[email-masked]>>
Sent: Friday, March 8, 2024 3:28 AM
To: Yunlin Tang <[email-masked]<mailto:[email-masked]>>; Dwarka Partani <[email-masked]<mailto:[email-masked]>>; Venkatesh, Supreeth <[email-masked]<mailto:[email-masked]>>; Prabhu, Mahesh <[email-masked]<mailto:[email-masked]>>; Kim, LingHuat (Sam) <[email-masked]<mailto:[email-masked]>>
Cc: David Peng <[email-masked]<mailto:[email-masked]>>; Ryan Chen <[email-masked]<mailto:[email-masked]>>; Paul Huang <[email-masked]<mailto:[email-masked]>>; Charles Kuan <[email-masked]<mailto:[email-masked]>>; Rathinasabapathi, Rajaganesh <[email-masked]<mailto:[email-masked]>>; GovardhanaVenkata, Sreedhar <[email-masked]<mailto:[email-masked]>>; Jay Xu <[email-masked]<mailto:[email-masked]>>
Subject: RE: AST2750 - Evaluation board Issues/questions

[AMD Official Use Only - General]

Thanks, Dwarka,

Adding Sam to review attached LTPI Documents.

@Yunlin Tang<mailto:[email-masked]> - Please let me know if you need call to discuss/ reproduce  “ast2700-default-ltpi” boot failure ?

Regards,
Ashok

From: Dwarka Partani <[email-masked]<mailto:[email-masked]>>
Sent: Friday, March 8, 2024 8:00 AM
To: Venkatesh, Supreeth <[email-masked]<mailto:[email-masked]>>; Kumar, Ashok2 [email-masked]<mailto:[email-masked]>; Prabhu, Mahesh <[email-masked]<mailto:[email-masked]>>
Cc: Yunlin Tang <[email-masked]<mailto:[email-masked]>>; David Peng <[email-masked]<mailto:[email-masked]>>; Ryan Chen <[email-masked]<mailto:[email-masked]>>; Paul Huang <[email-masked]<mailto:[email-masked]>>; Charles Kuan <[email-masked]<mailto:[email-masked]>>; Rathinasabapathi, Rajaganesh <[email-masked]<mailto:[email-masked]>>; GovardhanaVenkata, Sreedhar <[email-masked]<mailto:[email-masked]>>; Jay Xu <[email-masked]<mailto:[email-masked]>>
Subject: RE: AST2750 - Evaluation board Issues/questions

[AMD Official Use Only - General]

Caution: This message originated from an External Source. Use proper caution when opening attachments, clicking links, or responding.

Mahesh,
Attached is the document we discussed on the call and specifically for AMD Marley system. Please update your internal team about our discussion and let us know if you need help with LTPI testing.
BTW we have all the right ASPEED engineers on this email chain for any help you need with your testing.
Thanks,
Dwarka

From: Venkatesh, Supreeth <[email-masked]<mailto:[email-masked]>>
Sent: Thursday, March 7, 2024 5:21 PM
To: Dwarka Partani <[email-masked]<mailto:[email-masked]>>; Kumar, Ashok2 <[email-masked]<mailto:[email-masked]>>
Cc: Yunlin Tang <[email-masked]<mailto:[email-masked]>>; David Peng <[email-masked]<mailto:[email-masked]>>; Ryan Chen <[email-masked]<mailto:[email-masked]>>; Paul Huang <[email-masked]<mailto:[email-masked]>>; Charles Kuan <[email-masked]<mailto:[email-masked]>>; Rathinasabapathi, Rajaganesh <[email-masked]<mailto:[email-masked]>>; GovardhanaVenkata, Sreedhar <[email-masked]<mailto:[email-masked]>>; Prabhu, Mahesh <[email-masked]<mailto:[email-masked]>>
Subject: RE: AST2750 - Evaluation board Issues/questions

[AMD Official Use Only - General]

Hi Dwarka,

Mahesh [from Ravi’s team] is helping Ashok test it by connecting the customized cable and connecting to Xilinx FPGA LTPI interface.

We plan to test SGPIO, I2C functionality once base IP is working.
As long as Mahesh is aware of the changes required, he will help Ashok test it.

Thanks,
Supreeth Venkatesh
System Manageability Architect  |  AMD
Server Software

From: Dwarka Partani <[email-masked]<mailto:[email-masked]>>
Sent: Thursday, March 7, 2024 5:00 PM
To: Kumar, Ashok2 <[email-masked]<mailto:[email-masked]>>
Cc: Yunlin Tang <[email-masked]<mailto:[email-masked]>>; David Peng <[email-masked]<mailto:[email-masked]>>; Ryan Chen <[email-masked]<mailto:[email-masked]>>; Paul Huang <[email-masked]<mailto:[email-masked]>>; Charles Kuan <[email-masked]<mailto:[email-masked]>>; Venkatesh, Supreeth <[email-masked]<mailto:[email-masked]>>; Rathinasabapathi, Rajaganesh <[email-masked]<mailto:[email-masked]>>; GovardhanaVenkata, Sreedhar <[email-masked]<mailto:[email-masked]>>
Subject: RE: AST2750 - Evaluation board Issues/questions

Caution: This message originated from an External Source. Use proper caution when opening attachments, clicking links, or responding.

Supreeth,
We will have a call with Ravi’s team to discuss using the AST2700 based DC-SCM with AMD HPM. There are some changes that will be needed on the AMD FPGA RTL for LTPI based connections. We plan to explain the changes needed as we do not have access to the AMD Xilinx FPGA RTL source code.

This is the reason I am trying to ask Ashok about what you intend to do with the LTPI interface and how he is trying to make it work.

-Dwarka

From: Dwarka Partani
Sent: Thursday, March 7, 2024 2:18 PM
To: Kumar, Ashok2 <[email-masked]<mailto:[email-masked]>>
Cc: Yunlin Tang <[email-masked]<mailto:[email-masked]>>; David Peng <[email-masked]<mailto:[email-masked]>>; Ryan Chen <[email-masked]<mailto:[email-masked]>>; Paul Huang <[email-masked]<mailto:[email-masked]>>; Charles Kuan <[email-masked]<mailto:[email-masked]>>; Venkatesh, Supreeth <[email-masked]<mailto:[email-masked]>>; Rathinasabapathi, Rajaganesh <[email-masked]<mailto:[email-masked]>>; GovardhanaVenkata, Sreedhar <[email-masked]<mailto:[email-masked]>>
Subject: Re: AST2750 - Evaluation board Issues/questions

Ashok,
Could you please respond to my question below:

Ashok,
Please explain how you plan to test LTPI with the AST2700 EVB? What are you connecting to LTPI interface?

Dwarka

On Mar 7, 2024, at 11:40 AM, Kumar, Ashok2 <[email-masked]<mailto:[email-masked]>> wrote:

[AMD Official Use Only - General]

Hi Yunlin,

Thanks for prompt response.
Yes Jumper settings are correct –

Please try to build the image for AST2700 (“ast2700-default-ltpi”) and test.

I used below git revision.

Regards,
Ashok

From: Yunlin Tang <[email-masked]<mailto:[email-masked]>>
Sent: Friday, March 8, 2024 1:02 AM
To: Dwarka Partani <[email-masked]<mailto:[email-masked]>>; Kumar, Ashok2 <[email-masked]<mailto:[email-masked]>>; David Peng <[email-masked]<mailto:[email-masked]>>; Ryan Chen <[email-masked]<mailto:[email-masked]>>; Paul Huang <[email-masked]<mailto:[email-masked]>>; Charles Kuan <[email-masked]<mailto:[email-masked]>>
Cc: Venkatesh, Supreeth <[email-masked]<mailto:[email-masked]>>; Rathinasabapathi, Rajaganesh <[email-masked]<mailto:[email-masked]>>; GovardhanaVenkata, Sreedhar <[email-masked]<mailto:[email-masked]>>
Subject: RE: AST2750 - Evaluation board Issues/questions

[AMD Official Use Only - General]

Caution: This message originated from an External Source. Use proper caution when opening attachments, clicking links, or responding.

Ashok,

Since you mentioned that AST2700 default image boots OK, I assume that the jumper position on the board is the same as shown below. Could you please check the jumper 101 on the board?

We did build AST2600 LPTI image and tested it with our AST1700 with AST2700<->AST1700 LTPI connection. We will try your steps and see if can reproduce the issue seen at your end.

Regards!
Yunlin

From: Dwarka Partani <[email-masked]<mailto:[email-masked]>>
Sent: Wednesday, March 6, 2024 12:46 PM
To: Kumar, Ashok2 <[email-masked]<mailto:[email-masked]>>; David Peng <[email-masked]<mailto:[email-masked]>>; Yunlin Tang <[email-masked]<mailto:[email-masked]>>; Ryan Chen <[email-masked]<mailto:[email-masked]>>; Paul Huang <[email-masked]<mailto:[email-masked]>>; Charles Kuan <[email-masked]<mailto:[email-masked]>>
Cc: Venkatesh, Supreeth <[email-masked]<mailto:[email-masked]>>; Rathinasabapathi, Rajaganesh <[email-masked]<mailto:[email-masked]>>; GovardhanaVenkata, Sreedhar <[email-masked]<mailto:[email-masked]>>
Subject: RE: AST2750 - Evaluation board Issues/questions

Yunlin,
Could you please help Ashok.

Ashok,
Please explain how you plan to test LTPI with the AST2700 EVB? What are you connecting to LTPI interface?

Thanks,
Dwarka

From: Kumar, Ashok2 <[email-masked]<mailto:[email-masked]>>
Sent: Wednesday, March 6, 2024 10:39 AM
To: Dwarka Partani <[email-masked]<mailto:[email-masked]>>; David Peng <[email-masked]<mailto:[email-masked]>>
Cc: Venkatesh, Supreeth <[email-masked]<mailto:[email-masked]>>; Rathinasabapathi, Rajaganesh <[email-masked]<mailto:[email-masked]>>; GovardhanaVenkata, Sreedhar <[email-masked]<mailto:[email-masked]>>
Subject: AST2750 - Evaluation board Issues/questions

[AMD Official Use Only - General]

Hi Dwarka/David,

I hope you are the right contacts for below query, if not please forward to get the details.

I can successfully boot the board using default BMC ( as2700-default ), But when I tried to build and load the LTPI BMC image using “ast2700-default-ltpi”.
The board does not boot, and I get below, and it needs recovery.

I used below source to build LTPI BMC Image,  I need to test LTPI. Any help would be appreciated.

And to recover the system, I tried –

  1.  Boot from UART – I followed mentioned steps in the attached document, but it does not Jump to internal SRAM as mentioned below – not sure if its known issue.
---- >

  1.  Recover using SF100 :

I can recover the system by using SF100 and flashing “as2700-default” but I noticed that we need to press the reset button physically, by powering ON/OFF system does not boot.

That’s blocking us to use the remote recovery, any help would be appreciated.

Regards,
Ashok