-----Original Message-----
From: Wood Scott-B07421 
Sent: Saturday, June 08, 2013 1:21 AM
To: Zhang Ying-B40530
Cc: u-boot@lists.denx.de; aflem...@gmail.com; Xie Xiaobo-R63061; Zhang 
Ying-B40530
Subject: Re: [PATCH 5/8] powerpc: spl: deleted unused symbol 
CONFIG_SPL_NAND_MINIMAL and introduced new symbol CONFIG_SPL_MINIMAL

On 06/07/2013 04:25:17 AM, ying.zh...@freescale.com wrote:
> diff --git a/README b/README
> index e30e787..fbb50fb 100644
> --- a/README
> +++ b/README
> @@ -2911,6 +2911,11 @@ FIT uImage format:
>               CONFIG_SPL_INIT_MINIMAL
>               Arch init code should be built for a very small image
> 
> +             CONFIG_SPL_MINIMAL
> +             It is different from common SPL. if set, the SPL image
> +             as small as possible, only a tiny part of the SPL code
> +             is built.

How is this different from CONFIG_SPL_INIT_MINIMAL?
[Zhang Ying] 

It is really some confusion. So, we have two options:

1.  CONFIG_SPL_INIT_MINIMAL coexist with CONFIG_SPL_MINIMAL, I can increase the 
description for the difference
between both:
CONFIG_SPL_INIT_MINIMAL expressed support for minimal SPL. But it cannot be 
used independently, it must be
applied with CONFIG_SPL_BUILD. It mainly used in Makefiles.

CONFIG_SPL_MINIMAL equals to CONFIG_SPL_BUILD && CONFIG_SPL_INIT_MINIMAL. It is 
applied to C files. 

Just as you said: it would be nice to limit SPL symbols to only be defined for 
the SPL part of the build, so
we don't have to add checks for CONFIG_SPL_BUILD all over the place.  Currently 
this won't work for symbols
that makefiles look at, if "SPL: Makefile: Build a separate autoconf.mk for 
SPL" gets merged, we could just
define CONFIG_SPL_MINIMAL in the SPL build case.

2. No longer adds the new symbol CONFIG_SPL_MINIMAL:
We can use CONFIG_SPL_BUILD && CONFIG_SPL_INIT_MINIMAL to replace it in the C 
files.



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