[U-Boot] [U-Boot, v2, 3/5] Makefile: Provide an option to select SPL or TPL

[Tom Rini]

On Sun, Apr 02, 2017 at 09:50:30AM -0600, Simon Glass wrote:

> At present we have SPL_ which can be used in Makefiles to select between
> normal and SPL CONFIGs like this:
> 
>     obj-$(CONFIG_$(SPL_)DM)		+= core/
> 
> When TPL is being built, SPL_ has the value 'SPL' which is generally a
> good idea since they tend to follow each other. But in extreme situations
> we may want to distinugish between SPL and TPL. For example we may not
> want to enable CONFIG_DM with TPL.
> 
> Add a new SPL_TPL_ variable which is set to either empty (for U-Boot
> proper), 'SPL' or 'TPL'. This may prove useful with TPL-specific options.
> 
> Signed-off-by: Simon Glass <sjg at chromium.org>

Applied to u-boot/master, thanks!

-- 
Tom
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