[U-Boot] [PATCH v3 5/5] RFC: tegra: Convert to using environment files

[Stephen Warren <swarren@wwwdotorg.org>]

On 10/25/2013 11:01 PM, Simon Glass wrote:
> This seems more intuitive that the current #define way of doing things.
> The resulting code is shorter, avoids the quoting and line continuation
> pain, and also improves the clumsy way that stdio variables are created:
> 
>  #ifdef CONFIG_VIDEO_TEGRA
>  #define STDOUT_LCD ",lcd"
>  #else
>  #define STDOUT_LCD ""
>  #endif
> 
> ...
>  #define TEGRA_DEVICE_SETTINGS \
> 	"stdout=serial" STDOUT_LCD "\0" \
> 	...
> 
> The MEM_LAYOUT_ENV_SETTINGS variable is left in the header files, since
> it depends on the SOC type and we probably don't want to add .emv files
> for each board at this stage.

I guess I'm fine with this as long as e.g.
board/compulab/env/trimslice.env can contain:

#include "../../../board/nvidia/env/common.env"

... or perhaps the include path is set up to include board/nvidia/env
already, so it could just contain:

#include <common-nvidia.env>

> diff --git a/board/nvidia/env/common.env b/board/nvidia/env/common.env

> +bootcmd_mmc0=setenv devnum 0; run mmc_boot
> +bootcmd_mmc1=setenv devnum 1; run mmc_booxt
> +boot_targets+= mmc1 mmc0

I still don't see why = needs no space before/after, but += needs no
space before, but a space after. That simply looks like a typo to me,
and I'd be inclined to fix it were I editing this file. If a sed script
can't handle more flexible white-space, perhaps use Python or perhaps
Perl instead?