[U-Boot] [PATCH 00/26] dm: tegra: Move nyan-big to livetree

[Tom Rini]

On Fri, May 19, 2017 at 08:30:43AM -0600, Simon Glass wrote:
> This moves an entire board to use a live device tree as an example of the
> impact.
> 
> Nyan-big was chosen because I can easily and boot U-Boot without any
> media swapping, etc.
> 
> Total code size impact on this board is approximately 9KB on U-Boot and
> 64 bytes on SPL:
> 
> 27: dm: tegra: nyan-big: Move to livetree
>        arm: (for 1/1 boards) all +9264.0 bss -16.0 data +44.0 rodata +92.0
>           spl/u-boot-spl:all +326.0 spl/u-boot-spl:rodata +262.0
>           spl/u-boot-spl:text +64.0 text +9144.0
> 
> Tegra does not use Thumb2, which would likely reduce the code size by about
> 25%, indicating a code-size impact of perhaps 7KB.

So, did your buildman output get messed up in the copy/paste?  I see
both of the numbers you're saying, but it's all vs u-boot-spl.  The 64
bytes in SPL sounds good.

> I have not yet collected reliable detailed timing information. I will do
> that with the next version of this series, after comments are received.
> I expect that building the live tree will take a little time, and that
> using it will be very slightly faster.

I assume that you're in the process of rectifying this with the
bootstage patches you posted but FWIW I still use
http://elinux.org/Grabserial as my first weapon-of-choice in these kinds
of things.

-- 
Tom
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