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Sapphire Rapids SMBus access / Data Cmd Status Registers

avibharadwaj
Beginner
950 Views

For the Gold Xeon Processor 6442Y, how can we go about accessing the SMBus MCH Data, Command and Status Registers for Sapphire Rapids? Would like to enable bits in these registers and was wondering :

1. Are these registers still located at 0x80, 84, 88 like Icelake and Skylake generation?

2. What SMB bits can we enable for writing in these registers?

3. Does the Volume Management Driver introduced in this new generation play a part in accessing devices on the SMBus? 

4. How to write to these or fetch permissions to write to these?

5. Can we use the SMBus to fetch all 1024 bytes of memory information from the SPDs on DIMMs attached on the Motherboard? 

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BrusC_Intel
Employee
916 Views

Hello, avibharadwaj.


Thank you for posting on the Intel Community Support forum.


I received your thread regarding these particular Xeon-related questions, and I will be reviewing this with you.


Please let me know the following:


1. Is this the usual channel you use to request this type of information?

2. Do you have access to Intel Premier Support (IPS) or the Resource and documentation center (RDC)?

3. Does your company have an active NDA with Intel? (just yes or no, do not share any details yet).


I will follow up on august 17th just in case you need additional time.


Regards,


Bruce C.

Intel Customer Support Technician


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avibharadwaj
Beginner
902 Views

1. Yes. We do use this channel.

2.  I particularly don't have access but other team members do have access to RDC/IPS access.

3. We do have a NDA but we may need a new one and we would like to know how to go about with this process.

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BrusC_Intel
Employee
900 Views

Hello, avibharadwaj.


Good day,


I will contact you via the e-mail registered on file and support will most likely continue that way.


Best regards,


Bruce C.

Intel Customer Support Technician


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BrusC_Intel
Employee
882 Views

Hello, avibharadwaj.


Good day,


I tried to contact you via e-mail but there has been no response.


If your e-mail is different than the one you used to register in the forum, please let me know via private message.


I will follow up one more time on August 23rd before closing the thread if there is no response.


Best regards,


Bruce C.

Intel Customer Support Technician


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BrusC_Intel
Employee
797 Views

Hello, avibharadwaj.


Good day,


This message is to inform you about the closure of this community thread.


We discussed this matter privately, so this thread is no longer needed.


The thread will be closed right now, and it will no longer be monitored by Intel support, but if you require any type of assistance from Intel in the future, just open a new thread, or contact us using any of the available support methods:

- https://www.intel.com/content/www/us/en/support/contact-intel.html


Best regards,


Bruce C.

Intel Customer Support Technician


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