mmc: mmc: Enable Command Queuing

Enable the Command Queue if the host controller supports a command queue
engine. It is not compatible with Packed Commands, so make a note of that in the
comment.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
1 file changed