Writing UEFI application for UpXtreme

Edge & Embedded Embedded Connectivity
1

I am writing a UEFI application to access I2C on an UpXtreme. The pins are within CN26 (docking II), but I do not see a way to access them. I am using edk2 with the whiskeylake - upxtreme package.

Is there any way to access the pins directly or maybe the registers that are associated with?

2

Hello,  @Ruvimp :

Thank you for contacting Intel Embedded Community.

Could you please let us know the part number of the processor related to your request?

We are waiting for your answer.

Best regards,

@CarlosAM_INTEL .

3

Thank you for your reply @CarlosAM_INTEL  ,

Intel(R) Celeron(R) CPU 4305UE @ @2.00 GHz

Best,

@Ruvimp

4

Hello, @Ruvimp:

Thanks for your reply.

Could you please let us know if the device related to this situation has been designed by you or by a third-party company? In case it is a third-party device, please give us all the information about this device.

We are waiting for your answer.

Best regards,

@CarlosAM_INTEL.

5

The device is designed by me.

Best,

@Ruvimp

6

Hello,  @Ruvimp :

Thanks for your clarification.

You need to contact your Intel BIOS Vendor (IBV) because the UEFI is distributed and supported by each BIOS vendor, they have their own information on their channels of support, and even i2c is an open standard. They should provide as a reference something similar to the information stated on the following website:

https://www.insyde.com/press_news/blog/uefi-pi-13-review-part-1-i2c-bus-protocol

Best regards,

@CarlosAM_INTEL .