What can I do with I2C on I210?

[YUchi1]

We want to change the register​ in I210 .

We want to change the register in I 210 or change SPIROM value using I2C connected to I 210.

Can these does?

What else can I2C connected to I210 have?

We are developing in the following environment.

･CPU/GPU​ :Tegra X2(ARM Cortex-A57)

･OS​ :Linux ubuntu

･​Carrier Board :We developed the Board

･​NIC :I210IT×2

･I2C of I210(34pin,36pin) is connected to I2C of Tegra X2​

[CarlosAM_INTEL]

Hello, @YUchi1​:

Thank you for contacting Intel Embedded Community.

The information that may help you is stated in sections 6.7.8.1.3, 8.17.8, 8.17.9, 8.2.3, 8.2.5, 1.4.7, 3.5.2, 3.7.2.2, and 3.7.2.2.1; on pages 230, 231, 382, 383, 385, 484, 485, 486, 10, 85, 88, and 89 of the Intel(R) Ethernet Controller I210 Datasheet document # 333016 that can be found at:

https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/i210-ethernet-controller-datasheet.pdf

We hope that this information may help you.

Best regards,

@Mæcenas_INTEL​.    

[YUchi1]

Hello,@carlosx.e.aguilar.mecena (Intel).

Thank you for your reply.

Sorry,We read the each section of the datasheet. But we could not understand the contents written there.

Could tell me the contents written there easy?

Can I2C(SMBUS) of I210 access the external ROM?

If I2C of I210 can access the external ROM, Could tell me how to access the external ROM?

Best regard.

[CarlosAM_INTEL]

​Hello, @YUchi1​:

Thanks for your update.

The i210-IT is a copper interface that does not utilize the I2C interface.

I2C is a side band connection for SFP modules for link configuration.

There are no alternate uses for this link.

We hope that this information is useful.

Best regards,

@Mæcenas_INTEL​.  

[YUchi1]

Hello,@Mæcenas_INTEL​ :

Thank you for reply.

We understood that I2C of I210-IT can not access the External ROM and can not access internal resister of I210.

Best regard.

@YUchi1​