[U-Boot] [PATCH 1/2] SPL: Allow user to disable CPU support library

[Scott Wood]

On 10/05/2011 07:13 PM, Marek Vasut wrote:
> Introduce CONFIG_SPL_NO_CPU_SUPPORT_CODE to avoid compiling the CPU support
> library. This can be useful on some setups.
> 
> Signed-off-by: Marek Vasut <marek.vasut at gmail.com>
> Cc: Stefano Babic <sbabic at denx.de>
> Cc: Wolfgang Denk <wd at denx.de>
> Cc: Detlev Zundel <dzu at denx.de>
> Cc: Scott Wood <scottwood at freescale.com>
> ---
>  spl/Makefile |    5 +++++
>  1 files changed, 5 insertions(+), 0 deletions(-)
> 
> diff --git a/spl/Makefile b/spl/Makefile
> index 91dd11a..fc9360f 100644
> --- a/spl/Makefile
> +++ b/spl/Makefile
> @@ -18,6 +18,11 @@
>  CONFIG_SPL_BUILD := y
>  export CONFIG_SPL_BUILD
>  
> +# In case we want to avoid the CPU support code, we need to define this:
> +ifdef CONFIG_SPL_NO_CPU_SUPPORT_CODE
> +export CONFIG_SPL_NO_CPU_SUPPORT_CODE
> +endif

Why do we need this here, but not for other config symbols that
subordinate makefiles use (e.g. in the normal, non-SPL case)?

Shouldn't the cpu makefile include config.mk, which includes
autoconf.mk, which defines this symbol?

-Scott