
Mask macro PART_ACCESS_MASK filter out access bits of emmc register and macro EXT_CSD_EXTRACT_BOOT_PART() extracts boot part bits of emmc register. So use EXT_CSD_EXTRACT_BOOT_PART() when extracting boot partition. Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Simon Glass <sjg@chromium.org>