mmc-utils: Add AUTO_EN support in the BKOPS_EN

This patch adds support to enable auto(AUTO_EN) and
manual(MANUAL_EN) in BKOPS_EN register. Auto bkops
can only be used on eMMC 5.0 or newer.

Signed-off-by: Lars Pedersen <lapeddk@gmail.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Link: https://lore.kernel.org/r/20191111110051.16490-1-lapeddk@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
3 files changed