sample_embedding_folder2/0721070.txt

Ticket Name: Linux/TDA2: How many ethernet phy chips can be supported on TDA2X?

Query Text:
Part Number: TDA2 Other Parts Discussed in Thread: DP83865, DP83640 Tool/software: Linux Dear TI, We found DP83865 ethernet phy chip on EVM board. Is there another ethernet phy chip can be supported on TDA2X? Which driver is ready? Thanks a lot! waley

Responses:
Hello Waley, Selection of PHY would depend on your use-case requirements. Can you please let us know your use-case? On TI TDA EVMs we are using DP83867 (http://www.ti.com/product/DP83867IR).

Dear Prasad, For our case, 10/100M baseband is enough, it seems DP83640 is ok. But I'm not sure if we need to change driver code when we replaced the phy chip to another one. waley

Waley Are you planning to use ethernet from Linux or from TI BIOS(on M4 core). Linux includes a generic phy driver that should work for most cases. Additionally there are specific PHY drivers if there needs to be PHY specific configuration. List of PHY drivers and their supported versions can be found under drivers/net/phy/Kconfig file under the kernel sources. If the specific PHY part has a driver, you need to enable the same in kernel and update the phy binding string in the device tree for the board that you are using