[U-Boot] [PATCH] fastboot: Add USB cable detect check

[Steve Rae <srae@broadcom.com>]

On 15-01-26 01:14 PM, Rob Herring wrote:
> Add a check for USB cable attached and only enter fastboot when a cable
> is attached.
>
> Signed-off-by: Rob Herring <robh@kernel.org>
> ---
>   common/cmd_fastboot.c | 6 ++++++
>   1 file changed, 6 insertions(+)
>
> diff --git a/common/cmd_fastboot.c b/common/cmd_fastboot.c
> index b72f4f3..346ab80 100644
> --- a/common/cmd_fastboot.c
> +++ b/common/cmd_fastboot.c
> @@ -20,6 +20,12 @@ static int do_fastboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
>   	if (ret)
>   		return ret;
>
> +	if (!g_dnl_board_usb_cable_connected()) {
> +		puts("\rUSB cable not detected.\n" \
> +		     "Command exit.\n");
> +		return CMD_RET_FAILURE;
> +	}
> +
>   	while (1) {
>   		if (g_dnl_detach())
>   			break;
>

(question: the leading "\r" ?!?!)

Reviewed-by: Steve Rae <srae@broadcom.com>

Thanks, Steve