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AM6442: Does AM64 uboot support PRU Ethernet ?

Mukul Bhatnagar
Guru* 86115 points

Part Number: AM6442

HI 

(Posting on behalf of a customer) 

On AM65x uboot can support PRU Ethernet, do we have plan to support AM64x PRU Ethernet on uboot?

In SDK9.x uboot, we checked the code and verified result show that AM64x uboot PRU Ethernet can not work.

  • 0
    TI__Guru* 86115 points

    ICSSG support in u-boot is not present for AM64 in SDK8.x or SDK 9.x

    We have this item in our roadmap plan and you can expect the support for it SDK9.2. (Feb 2024 time frame)

  • 0 in reply to Mukul Bhatnagar
    TI__Intellectual 1965 points

    HI, Mukul 

    Great to hear that, we have customers who want to do their own transplants, can you provide me with some information?

    Compard with AM65, Which files need to be modified?

    Best Regards,

    Zane

  • 0 in reply to Zane Wei
    TI__Guru** 110370 points

    Hello Zane,

    We will follow up offline.

    For future readers, 

    We got PRU Ethernet working in Uboot on AM65x silicon revision 1.0 (SR1.0). However, as of AM65x SDK 8.6, AM65x silicon revision 2.0 (SR2.0) does not support PRU Ethernet in Uboot.

    AM65x SR2.0 and AM64x have the same PRU_ICSSG, but AM65x SR1.0 and AM65x SR2.0 have different PRU_ICSSGs. That means you cannot just take PRU Ethernet uboot code that works on AM65x SR1.0, and make a couple of modifications to get it working on AM64x. It requires a lot more work. We will need to wait for the developers to write the new code and add it to a future AM64x SDK release.

    Regards,

    Nick