[U-Boot] [PATCH v2] mx6cuboxi: Skip usb initialization when booting without HDMI

[Vagrant Cascadian <vagrant@aikidev.net>]

On 2015-05-04, Fabio Estevam wrote:
> Starting USB initialization is useful for those who use Cuboxi/Hummingboard
> with HDMI and USB keyboard.
>
> However, when booting without a HDMI connection we can skip the usb 
> initialization, which makes the boot faster.
>
> Signed-off-by: Jon Nettleton <jon.nettleton@gmail.com>
> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
> ---
> Changes since v1:
> - Improve commit log (avoid repeating the word 'use').
>
>  include/configs/mx6cuboxi.h | 16 ++++++++++++----
>  1 file changed, 12 insertions(+), 4 deletions(-)
>
> diff --git a/include/configs/mx6cuboxi.h b/include/configs/mx6cuboxi.h
> index 4e07f59..b6f9d4e 100644
> --- a/include/configs/mx6cuboxi.h
> +++ b/include/configs/mx6cuboxi.h
> @@ -80,6 +80,7 @@
>  #define CONFIG_VIDEO_LOGO
>  #define CONFIG_VIDEO_BMP_LOGO
>  #define CONFIG_IMX_HDMI
> +#define CONFIG_CMD_HDMIDETECT
>  #define CONFIG_IMX_VIDEO_SKIP
>  #define CONFIG_CONSOLE_MUX
>  
> @@ -94,7 +95,17 @@
>  #define CONFIG_USB_MAX_CONTROLLER_COUNT	2
>  #define CONFIG_USB_KEYBOARD
>  #define CONFIG_SYS_USB_EVENT_POLL
> -#define CONFIG_PREBOOT			"usb start"
> +#define CONFIG_PREBOOT \
> +	"if hdmidet; then " \
> +		"usb start; "		       \
> +		"setenv stdin  serial,usbkbd; "\
> +		"setenv stdout serial,vga; "   \
> +		"setenv stderr serial,vga; "   \
> +	"else " \
> +		"setenv stdin  serial; " \
> +		"setenv stdout serial; " \
> +		"setenv stderr serial; " \
> +	"fi;"
>  
>  #define CONFIG_SYS_NO_FLASH
>  
> @@ -117,9 +128,6 @@
>  
>  #define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
>  #define CONFIG_EXTRA_ENV_SETTINGS \
> -	"stdin=serial,usbkbd\0" \
> -	"stdout=serial,vga\0" \
> -	"stderr=serial,vga\0" \
>  	"script=boot.scr\0" \
>  	"image=zImage\0" \
>  	"fdtfile=undefined\0" \
> -- 
> 1.9.1

Tested-By: Vagrant Cascadian <vagrant@aikidev.net>
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