[PATCH] include: env: ti: default_findfdt: Follow the bootstd/distro conventions

[Jon Humphreys]

Nishanth Menon <nm at ti.com> writes:

> Distroboot and bootstd both mandate a findfdt variable pointing to the
> correct device tree blob. Current mechanism calls a find_fdt function
> to set this variable. We do not need a find_fdt command to set the
> environment variable to a single dtb. Simplify the default_findfdt to
> remove variable expansion while at it.
>
> For legacy scripts depending on a TI convention of name_fdt, provide a
> find_fdt wrapper that behaves like before.
>
> NOTE: As part of this change, we also drop the cooked up
> default_device_tree_arch default_device_tree_subarch variables.
>
> Reported-by: Jonathan Humphreys <j-humphreys at ti.com>
> Signed-off-by: Nishanth Menon <nm at ti.com>
> ---
>  include/env/ti/default_findfdt.env | 13 ++++---------
>  1 file changed, 4 insertions(+), 9 deletions(-)
>
> diff --git a/include/env/ti/default_findfdt.env b/include/env/ti/default_findfdt.env
> index a2b51dd923bb..1a1ab8406c9e 100644
> --- a/include/env/ti/default_findfdt.env
> +++ b/include/env/ti/default_findfdt.env
> @@ -1,12 +1,7 @@
> -default_device_tree=CONFIG_DEFAULT_DEVICE_TREE
> -default_device_tree_arch=ti
>  #ifdef CONFIG_ARM64
> -findfdt=
> -	setenv name_fdt ${default_device_tree_arch}/${default_device_tree}.dtb;
> -	setenv fdtfile ${name_fdt}
> +fdtfile=ti/CONFIG_DEFAULT_DEVICE_TREE.dtb;
>  #else
> -default_device_tree_subarch=omap
> -findfdt=
> -	setenv name_fdt ${default_device_tree_arch}/${default_device_tree_subarch}/${default_device_tree}.dtb;
> -	setenv fdtfile ${name_fdt}
> +fdtfile=ti/omap/CONFIG_DEFAULT_DEVICE_TREE.dtb;
>  #endif
> +
> +findfdt=setenv name_fdt ${fdt_file}
> -- 
> 2.43.0

Nishanth, only am62/beagleplay uses the default_findfdt.env definitions.  Others
(eg, j721e) define their own and have a run-time component to them.

Jon