topic Re: Atom x5-E8000 i2c in Embedded Intel Atom® Processors

Atom x5-E8000 i2c

MVent2 — Sun, 29 Jul 2018 10:56:38 GMT

Hello Guys,

I'm working with a SMARC Sytem on Module supplied by ADLINK (https://www.adlinktech.com/en/Computer_on_Modules_SMARC.aspx SMARC Modules, SMARC Short Size Modules, SMARC Full Size Modules, SMARC Extreme Rugged Versions - ADLINK Technology - A… ), featuring the Atom(TM) x5-E8000 processor.

No matter what i try, i cannot make all the I2C busses work (there should be 4, according to the vendor).

The i2cdetect gives me the following output

i2c-3 i2c i915 gmbus panel I2C adapteri2c-1 i2c i915 gmbus ssc I2C adapteri2c-8 i2c DPDDC-B I2C adapteri2c-6 i2c i915 gmbus dpd I2C adapteri2c-4 i2c i915 gmbus dpc I2C adapteri2c-2 i2c i915 gmbus vga I2C adapteri2c-0 smbus SMBus I801 adapter at f040 SMBus adapteri2c-9 i2c DPDDC-D I2C adapteri2c-7 i2c DPDDC-C I2C adapteri2c-5 i2c i915 gmbus dpb I2C adapter

from what I real those should all be relate to graphic adapters, the processors resources are not listed.

After some research i found that those soc feature something called Serial IO, but it's unclear to me if it need to be configured somehow, and if it need a patched linux kernel to work (I tried mainline 4.15 and 4.9).

Is there any resource i can look at to understand better?

Is the datasheet of the Atom x5-E8000 available? (I can have an NDA signed if needed).

Thanks a lot,

Marco

Re: Atom x5-E8000 i2c

CarlosAM_INTEL — Mon, 30 Jul 2018 16:53:16 GMT

Hello, MarcoV :

Thank you for contacting Intel Embedded Community.

We would like to help you with your consultation related to this or any third-party device; however, the proper information should be provided by the manufacturer of the device associated with the mentioned situation.

Due to this fact, your questions should be addressed to the channels listed as a reference at:

http://askanexpert.adlinktech.com/AAE/Answers.aspx http://askanexpert.adlinktech.com/AAE/Answers.aspx

https://partner.adlinktech.com/main/default.asp https://partner.adlinktech.com/main/default.asp

mailto:support@adlinktech.com support@adlinktech.com

We hope that this information may help you.

Best regards,

Carlos_A.

Re: Atom x5-E8000 i2c

MVent2 — Mon, 30 Jul 2018 17:06:01 GMT

Thanks to you Carlos!

Let's stick to what can be Intel related:

Is the datasheet of the Atom x5-E8000 available? (I can have an NDA signed if needed).

EDIT:

I see your point and I don't want you to do support in place of ADLINK, looking at the datasheet should be enough for me to understand the extent of the problem, and can also be taken in account for future designs.

I understand also that this can be confidential information, if it's so just point it out, I'll see if it possible to proceed and how.

Marco

Re: Atom x5-E8000 i2c

CarlosAM_INTEL — Mon, 30 Jul 2018 21:19:20 GMT

Hello, MarcoV:

Thanks for your update.

The https://cdrdv2.intel.com/v1/dl/getContent/547869 Braswell SoC External Design Specification (EDS) Volume 1 of 3 document # 547869, https://cdrdv2.intel.com/v1/dl/getContent/547870 Braswell SoC EDS Volume 2 of 3 document # 547870, and https://cdrdv2.intel.com/v1/dl/getContent/547871 Braswell SoC EDS Volume 3 of 3 document # 547871 are the requested documents.

They are accessible when you are logged into your Resource & Design Center (RDC) privileged account. It can be requested by filling out the https://www.intel.com/content/www/us/en/forms/design/contact-support.html RDC Account Support form.

We hope that this information may help you.

Best regards,

Carlos_A.