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TDA4AL-Q1: U-boot Boot From OSPI & Load Roof FS from eMMC

Gibbs Shih
Expert 5145 points
Part Number: TDA4AL-Q1

Hi, TI Expert

As title description, u-boot stored in OSPI flash, and HLOS (kernel + rootfs) stored in eMMC

we except bootloader boot from OSPI, and then load (boot) HLOS from eMMC

If u-boot boots from OSPI flash success, I think we should also change "boot command" in u-boot to load HLOS image

May you give us some examples for "boot command" ?

Already reference this thread.

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1287686/tda4vl-q1-j721s2-evm-ospi-emmc-flash?tisearch=e2e-quicksearch&keymatch=uboot%20ospi

Many Thanks

Gibbs

  • +1
    TI__Guru 55835 points

    Hi Gibbs,

    You need to change your command  line to pick the rootfs from the emmc like below:

    1. Halt at U-BOOT
    2. =>setenv args_mmc "run finduuid;setenv bootargs console=ttyS2,115200n8  root=/dev/mmcblk0p2 rw rootfste=ext4 rootwait"
    3. =>boot

    Assuming your rootfs is present in dev/mmcblk0p2 if not you need to modify the partition accordingly.

    Regards
    Diwakar