FT u-boot shim
Tom Rini
trini at kernel.crashing.org
Sat Apr 29 10:52:31 EST 2006
On Sat, Apr 29, 2006 at 02:32:32AM +0200, Wolfgang Denk wrote:
> In message <20060428232211.GE458 at smtp.west.cox.net> you wrote:
> >
> > You wouldn't have the dtb combined in the kernel image, unless you have
> > the shim. This is instead of loading a separate dtb anyhow.
>
> Now you got me completely confused. [Maybe I should go to bed.]
>
> Kumar wrote:
>
> > What I envision as the way one boots for something like u-boot is one
> > of three options:
> > 1. using an old u-boot + boot wrapper (bd_t -> wrapper -> kernel)
> > 2. using a u-boot that is ft aware + dtb (boot command in u-boot
> > takes kernel & dtb images, updates blob and passes to kernel)
> > 3. using a u-boot that is ft aware + built in dtb.
>
> In my understanding, 1. is with a shim; 2. is loading a separate dtb
> (probably as multi-file image), and 3. is when U-Boot provides the
> dtb. Am I missing something?
I'm suggesting that we make 2 easier. U-Boot needs the file mkuimage'd
anyways. Why not make it easier and make adding the dtb part of that
step instead of a seperate load? It's still quite easy to replace if
you're testing new dtb's out.
--
Tom Rini
http://gate.crashing.org/~trini/
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