i.MX ProcessorsのトピックRe: Boot loader optimizations with UUU function reserved

Boot loader optimizations with UUU function reserved

Mingheng — Tue, 05 Nov 2024 02:22:29 GMT

We want to do optimizations following the document https://docs.nxp.com/bundle/AN14093/

But we find we couldn't use UUU to download image to the board with IMX8M Plus.

Here is the message on console when running UUU command, the SPL would only check the MMC device(e.g. MMC1_BOOT -> BOOT_DEVICE_MMC1) but USB board device(USB_BOOT -> BOOT_DEVICE_BOARD)

Look forward to your help

Best regards

MIngheng

Re: Boot loader optimizations with UUU function reserved

danielchen — Mon, 02 Dec 2024 05:14:24 GMT

I would suggest you test whether the same u-boot image can load successfully on an SD card without UUU tool?

Regards

Daniel

Re: Boot loader optimizations with UUU function reserved

lapohab — Thu, 05 Dec 2024 11:01:54 GMT

This is a very simple reason: UUU burning relies on the fastboot function of u-boot, while Falcon mode has no u-boot, only SPL.

Re: Boot loader optimizations with UUU function reserved

lapohab — Thu, 05 Dec 2024 11:08:04 GMT

I don't think you fully understand what Falcon mode is and what the question of Mingheng is about.

Re: Boot loader optimizations with UUU function reserved

elena_popa — Sun, 19 Jan 2025 12:41:02 GMT

Hi @Mingheng

Please refer to the solution described in this ticket: https://community.nxp.com/t5/i-MX-Processors/How-to-load-Falcon-mode-image-to-emmc-on-imx8mplus-dev-board-nxp/m-p/2015307 Following those steps you will be able to write the image on the eMMC.

Thanks,

Elena