[U-Boot] [PATCH 2/7] fdt: Build a U-Boot binary without device tree

Stephen Warren
2016-01-25T21:14:38Z

On 01/25/2016 01:30 PM, Simon Glass wrote:
> At present u-boot.bin holds the plain U-Boot binary without the device tree.
> This is somewhat annoying since you need either u-boot.bin or u-boot-dtb.bin
> depending on whether device tree is used.
>
> Adjust the build such that u-boot.bin includes a device tree, and the
> plain binary is in u-boot-nodtb.bin. For now u-boot-dtb.bin remains the
> same.
>
> This should be acceptable since:
>
> - without OF_CONTROL, u-boot.bin still does not include a device tree
> - with OF_CONTROL, u-boot-dtb.bin does not change
>
> The main impact is build systems which are set up to use u-boot.bin as
> the output file and then add a device tree. These will have to change to use
> u-boot-nodtb.bin instead.

That's probably going to annoy somebody. Have you put thought into how
such a build system could auto-detect which file it should use in order
to automatically adjust to the different file naming conventions of
different U-Boot versions or branches? If not, this change will burden
the operator of any tool or automated system with manually handling the
difference by branching their own code or processes:-(

> Adjust tegra rules so it continues to produce the correct files.

I don't see anything Tegra-related in this patch. Perhaps patch 1/7 was
included here in a previous version and the commit description not updated?

Anyway, I think this patch doesn't affect me or Tegra's flashing tools.
For reference, the tool currently uses the following files:

u-boot
spl/u-boot-spl
u-boot-nodtb-tegra.bin
u-boot.dtb
u-boot-dtb-tegra.bin