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

[Scott Wood <scottwood@freescale.com>]

On 05/16/2013 10:05:17 PM, ying.zhang at freescale.com wrote:
> diff --git a/common/Makefile b/common/Makefile
> index f50bf2e..26b8495 100644
> --- a/common/Makefile
> +++ b/common/Makefile
> @@ -44,13 +44,11 @@ COBJS-$(CONFIG_SYS_GENERIC_BOARD) += board_r.o
>  COBJS-y += cmd_boot.o
>  COBJS-$(CONFIG_CMD_BOOTM) += cmd_bootm.o
>  COBJS-y += cmd_help.o
> -COBJS-y += cmd_nvedit.o
>  COBJS-y += cmd_version.o
> 
>  # environment
>  COBJS-y += env_attr.o
>  COBJS-y += env_callback.o
> -COBJS-y += env_common.o
>  COBJS-y += env_flags.o
>  COBJS-$(CONFIG_ENV_IS_IN_DATAFLASH) += env_dataflash.o
>  COBJS-$(CONFIG_ENV_IS_IN_EEPROM) += env_eeprom.o
> @@ -215,18 +213,27 @@ COBJS-$(CONFIG_CMD_GPT) += cmd_gpt.o
>  endif
> 
>  ifdef CONFIG_SPL_BUILD
> -COBJS-y += cmd_nvedit.o
> -COBJS-y += env_common.o
>  COBJS-$(CONFIG_ENV_IS_IN_FLASH) += env_flash.o
>  COBJS-$(CONFIG_SPL_YMODEM_SUPPORT) += xyzModem.o
> -COBJS-$(CONFIG_SPL_NET_SUPPORT) += cmd_nvedit.o
> -COBJS-$(CONFIG_SPL_NET_SUPPORT) += env_attr.o
> -COBJS-$(CONFIG_SPL_NET_SUPPORT) += env_callback.o
> -COBJS-$(CONFIG_SPL_NET_SUPPORT) += env_common.o
> -COBJS-$(CONFIG_SPL_NET_SUPPORT) += env_flags.o
> -COBJS-$(CONFIG_SPL_NET_SUPPORT) += env_nowhere.o
>  COBJS-$(CONFIG_SPL_NET_SUPPORT) += miiphyutil.o
> +# environment
> +COBJS-$(CONFIG_SPL_ENV_SUPPORT) += env_attr.o
> +COBJS-$(CONFIG_SPL_ENV_SUPPORT) += env_flags.o
> +COBJS-$(CONFIG_SPL_ENV_SUPPORT) += env_callback.o
> +ifneq ($(CONFIG_SPL_NET_SUPPORT),y)
> +COBJS-$(CONFIG_ENV_IS_NOWHERE) += env_nowhere.o
> +COBJS-$(CONFIG_ENV_IS_IN_MMC) += env_mmc.o
> +COBJS-$(CONFIG_ENV_IS_IN_NAND) += env_nand.o
> +COBJS-$(CONFIG_ENV_IS_IN_SPI_FLASH) += env_sf.o
> +COBJS-$(CONFIG_ENV_IS_IN_FLASH) += env_flash.o
> +else
> +COBJS-y += env_nowhere.o
> +endif

Why do you include these files only if we *don't* have net support?

-Scott