• State TI Thinks Resolved
  • Locked Locked
  • Replies 2 replies
  • Answers 1 answer
  • Subscribers 98 subscribers
  • Views 917 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

AM3359: Disable Ethernet and USB in U-boot

Sreenivas Ranganath
Prodigy 30 points
Part Number: AM3359

i am developing a project in AM3359 ice ev2 board, i want to disable the Ethernet and USB from U-boot, since my

project requirements says there is no need of Ethernet and USB

  • 0
    TI__Guru**** 393215 points
    Hi,
    You query has been assigned to a TI engineer. Please note that response may be delayed due to Christmas and New Year holidays.
  • 0
    TI__Guru 69707 points

    Hi Sreenivas,

    Sreenivas Ranganath said:
    i want to disable the Ethernet and USB from U-boot

    Typically you can disable U-Boot features like Ethernet and USB using two methods:

    1. Disable the respective peripheral nodes in your main device tree file by adding status = "disabled" (see how other top-level device tree files overlay/amend existing nodes using a "&name" reference)
    2. Disabling driver support by turning off related U-Boot CONFIG options (need to be careful, CONFIG options often have dependencies but the use of 'make menuconfig' should help disabling those cleanly).

    Just doing 1 will usually get you where you need, since disabled nodes won't get probed the related initialization won't be performed. Doing 2 in addition to 1 would only be needed to cut down the size of the SPL and U-Boot executables.

    Regards, Andreas