Could anyone please advise how to set up dtb?

In running uuu, I can set up "SDP: write -f imx6ulz-kobs.dtb -addr 0x90000000", but how can I change to different dtb calling fw_setenv?

Thank you and appreciate it.

Kind regards,

- jh

On 5/3/20, Jupiter jupiter.hce@gmail.com wrote:

Hi,

To flash u-boot to iMX6ULL NAND, it requires using higher bits ECC (my imx6ulz_kobs.dtb) to run kobs-ng in ramdisk, but to flash rootfs image to NAND in ramdisk, I have to change to use lower ECC (my imx6ulz.dtb).

I followed the advice at link https://developer.toradex.com/knowledge-base/u-boot-fw-utils to run "fw_setenv fdt_file imx6ulz_kobs.dtb" before flashing u-boot to NAND, although the fw_setenv command worked, the u-boot wasn't installed properly in NAND, I could not boot from NAND.

What is the right way to run fw_setenv for changing different ECC or different dtb files?

Thank you.

Kind regards,

• jh

-- "A man can fail many times, but he isn't a failure until he begins to blame somebody else." -- John Burroughs