Linux/66AK2E05: PCIe in EP mode

Hi,

I am looking into this.

Best Regards,
Yordan

Can you share which linux SDK are you using?

We use SDK 4.01

Hi, Eduard,

The PCIe EP support only implemented and verified on K2G device, not K2E. The implementation does not support dual mode either.

Rex

Hi, Rex!

Can you give me an example of the dtb settings for try K2E PCIe in EP mode? Or is it still impossible?

Eduard,

On TI K2E EVM, there isn't a PCIe connector. PCIe0 only goes to the AMC connector, but the functionality of the PCIe on AMC BoC was de-scoped. We can't verify the functionality. The PCIe EP for K2G is in the K2G dtsi You may be able to port it to K2E, but we are not able to support it without hardware in place.

Rex

Rex,

In PCI Express (PCIe) for KeyStone Devices User's Guide (Rev. D):

2.4 SerDes Configuration for KeyStone II Devices
SerDes module information for KeyStone II devices is not provided in this user guide.
Please check for availability of the SerDes User Guide for KeyStone II Devices on the
device product page.

Where can I find information about this?

 

Eduard,

That is in the device product page, http://www.ti.com/product/66AK2E05/technicaldocuments#doctype6.

SerDes document is under User's Guide section.

Rex

In "KeyStone II Architecture Serializer/Deserializer (SerDes) User's Guide", on page 39:

"For details on PCIe SerDes configuration registers, definitions, and settings, see the KeyStone Architecture PCIe User Guide, in Related Documentation from Texas Instruments."

:(

Eduard,

Sorry, I didn't pay attention to the content. Keystone means C66x device vs Keystone-2 66AK2H/K/E/L which has ARM and C66x cores. The document should be in TMS320C6678 wiki page, www.ti.com/.../technicaldocuments

Rex