[U-Boot] [RFC PATCH 1/3] env: drop CONFIG_ENV_VARS_UBOOT_CONFIG support

[Wolfgang Denk <wd@denx.de>]

Dear Masahiro,

In message <1398159826-29398-2-git-send-email-yamada.m@jp.panasonic.com> you wrote:
> CONFIG_ENV_VARS_UBOOT_CONFIG, if defined, sets environment
> variables, "arch", "cpu", "board", etc. depending on
> CONFIG_SYS_ARCH, CONFIG_SYS_CPU, CONFIG_SYS_BOARD, respectively.
> 
> We are discussing the introduction of Kconfig.
> In our discussion, we found boolean CONFIG macros are more useful
> in Kconfig context.
> 
> That is,
> 
> CONFIG_ARM=y
> CONFIG_CPU_ARMv7=y
> CONFIG_BOARD_HARMONY=y
> CONFIG_VENDOR_NVIDIA=y
> 
> rather than
> 
> CONFIG_SYS_ARCH="arm"
> CONFIG_SYS_CPU="armv7"
> CONFIG_SYS_BOARD="harmony"
> CONFIG_SYS_VENDOR="nvidia"

I understand your intention - but does this not mean that we lose all
flexibility in assigning board and vendor names?  So far, we allow any
kind of names, lowercase and uppercase and mixed.  Will we not lose
this capability?  Also, we have '-' characters in a number of board
names - would this not also cause trouble?

Finally, I don't see what your replacement code would be to create the
set of environment settigns - and I think these are needed, as some
user defined scripts are processing these?

Best regards,

Wolfgang Denk

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