[U-Boot] [PATCH v2 06/50] spl: Allow sandbox to build a device-tree file

[Bin Meng]

On Fri, Apr 26, 2019 at 11:59 AM Simon Glass <sjg at chromium.org> wrote:
>
> At present only OF_SEPARATE is considered valid for building a device-tree
> file in SPL. However sandbox uses OF_HOSTFILE instead. Update the logic to
> handle this and make it easier to understand.
>
> Note that the new logic is not quite the same as the old logic. It was
> previously assumed that checking for:
>
>    $(CONFIG_$(SPL_TPL_)OF_CONTROL)
>    $(CONFIG_OF_SEPARATE)
>    $(CONFIG_$(SPL_TPL_)OF_PLATDATA)
>
> producing 'yy' meant that the first two were 'y' and the last was empty.
> Strictly speaking it would be possible for any two of the three to be 'y'
> and still yield the same result. However, that was not the intention of
> the new logic, since OF_PLATDATA always ensures that no device-tree file
> is included. So in effect the new logic is the same, with the addition of
> OF_HOSTFILE as an option for OP_SEPARATE.
>
> Signed-off-by: Simon Glass <sjg at chromium.org>
> ---
>
> Changes in v2:
> - Add a better explanation of the logic change, in the commit message
>
>  scripts/Makefile.spl | 14 +++++++++++++-
>  1 file changed, 13 insertions(+), 1 deletion(-)
>

Reviewed-by: Bin Meng <bmeng.cn at gmail.com>