From mboxrd@z Thu Jan  1 00:00:00 1970
From: Bin Meng <bmeng.cn@gmail.com>
Date: Fri, 22 Jan 2021 22:32:59 +0800
Subject: Loading u-boot binary from the u-boot command line
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On Fri, Jan 22, 2021 at 9:23 PM Amit Tomar <atomar25opensource@gmail.com> wrote:
>
> >
> > Can I load the modified u-boot binary from the currently running u-boot
> > command line?
> >
>
> Yes, U-boot supports chain loading.
>
> On host machine you can use ckermit[1] program to load U-boot image using
> serial or you can
> use tftp to load modified U-boot image at SYS_TEXT_BASE address.
> Once the image is loaded , you can bootm "SYS_TEXT_BASE".
>

I think this only works if SYS_TEXT_BASE is a RAM address, which is
mostly the case for boards that don't run U-Boot from NOR flash after
POR.

Regards,
Bin