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AM5728 Linux SATA Boot

Kzk
Genius 5785 points

Other Parts Discussed in Thread: AM5728

Hello,

I want AM5728 boot from SATA. But I can't find a description about SATA-Boot in TI Wiki. Do you have a plan to provide the software environment for booting Linux from SATA?
processors.wiki.ti.com/.../Linux_Core_U-Boot_User's_Guide

Regards,
Kazu

  • 0
    TI__Guru 65405 points
    Hi Kazu,

    Check in AM572x TRM section 33.3.7.7 SATA Device Boot Operation at:
    www.ti.com/.../spruhz6f.pdf

    BR
    Tsvetolin Shulev
  • 0 in reply to Cvetolin Shulev-XID
    Genius 5785 points

    Hello Tsvetolin Shulev,

    Thank you for your reply. I understand I should format a SATA device to a boot partition composed of FAT12/16/32, then copy "HLO" and u-boot into the partition.

    In order do this operation, should I make a custom shell script based on create-sdcard.sh? Do you think that HLO can find u-boot in the partition without any changes in HLO source code?

    There is also a zImage and a target filesystem in a rootfs partition composed of ext3. Could you tell me how I alter parameters of u-boot environment variables?

    Regards,
    Kazu

  • 0 in reply to Kzk
    TI__Guru 65405 points
    Kazu,

    Yes, you should format the SATA device and make two partitions FAT12/16/32 and ext3 and copy there all necessary files. You can choose one of both decisions - make all steps manually or by shell script.
    You have no need to modify the MLO boot loader source code because the u-boot is placed in the same partition.
    You should check whether the SATA driver is enable in your kernel configuration as it is described in the linked SATA User's guide:
    processors.wiki.ti.com/.../Linux_Core_SATA_User's_Guide
    Also you should modify the environment variables in u-boot the make possible SATA 'zImage' booting as it is described at:
    elinux.org/UDOO_boot_from_sata

    BR
    Tsvetolin Shulev