[U-Boot] [PATCH] common/Makefile: Add new symbol CONFIG_SPL_ENV_SUPPORT for environment in SPL

[Stefan Roese]

(sorry for jumping in so late in this discussion)

On 05/21/2013 09:14 PM, Scott Wood wrote:
>> This is Tom's words:
>>
>> a3m071 relies on SPL always building cmd_nvedit.o and env_common.o and
>> duplicated CONFIG_ENV_IS_IN_FLASH in the SPL section.
>>
>> CONFIG_SPL_NET_SUPPORT relies on the same always-built ins and adds
>> env_nowhere.o which works because the regular CONFIG_ENV_IS_IN_...
>>
>> section is in the non-SPL-only area.
> 
> If "SPL: Makefile: Build a separate autoconf.mk for SPL" gets merged,  
> we could just have a3m071 define CONFIG_ENV_IS_NOWHERE in the SPL build  
> case.

But the a3m071 SPL U-Boot version also uses the env from NOR flash. So
defining CONFIG_ENV_IS_NOWHERE here would be really confusing!

Thanks,
Stefan