[U-Boot] [PATCH v2 04/29] Convert CONFIG_SYS_CONSOLE_IS_IN_ENV et al to Kconfig

[Tom Rini]

On Sat, Sep 24, 2016 at 06:17:00PM -0600, Simon Glass wrote:
> This converts the following to Kconfig:
>    CONFIG_SYS_CONSOLE_IS_IN_ENV
>    CONFIG_CONSOLE_MUX
> 
> Signed-off-by: Simon Glass <sjg at chromium.org>
> ---
> 
> Changes in v2:
> - Make CONSOLE_MUX default y if DM_VIDEO || VIDEO || LCD
> 
>  README                                               |  6 ------
>  common/Kconfig                                       | 20 ++++++++++++++++++++
[snip]
> diff --git a/common/Kconfig b/common/Kconfig
> index 6ee67ac..8e600f7 100644
> --- a/common/Kconfig
> +++ b/common/Kconfig
> @@ -288,6 +288,26 @@ config PRE_CON_BUF_ADDR
>  	  We should consider removing this option and allocating the memory
>  	  in board_init_f_init_reserve() instead.
>  
> +config CONSOLE_MUX
> +	bool "Enable console multiplexing"
> +	default y if DM_VIDEO || VIDEO || LCD
> +	help
> +	  This allows multiple devices to be used for each console 'file'.
> +	  For example, stdout can be set to go to serial and video.
> +	  Similarly, stdin can be set to come from serial and keyboard.
> +	  Input can be provided from either source. Console multiplexing
> +	  adds a small amount of size to U-Boot.  Changes to the environment
> +	  variables stdout, stdin and stderr will take effect immediately.
> +
> +config SYS_CONSOLE_IS_IN_ENV
> +	bool "Select console devices from the environment"
> +	help
> +	  This allows multiple input/output devices to be set at boot time.
> +	  For example, if stdout is set to "serial,video" then output will
> +	  be sent to both the serial and video devices on boot. The
> +	  environment variables can be updated after boot to change the
> +	  input/output devices.

OK, it looks like we should say SYS_CONSOLE_IS_IN_ENV is default y if
CONSOLE_MUX.  This won't cover all of the defconfig additions (something
else needs to be done for boards with > 1 uart and not all of that is in
Kconfig yet either) but it will help.

-- 
Tom
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