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1======================2MMC tools introduction3======================4 5There is one MMC test tools called mmc-utils, which is maintained by Ulf Hansson,6you can find it at the below public git repository:7 8 https://git.kernel.org/pub/scm/utils/mmc/mmc-utils.git9 10Functions11=========12 13The mmc-utils tools can do the following:14 15 - Print and parse extcsd data.16 - Determine the eMMC writeprotect status.17 - Set the eMMC writeprotect status.18 - Set the eMMC data sector size to 4KB by disabling emulation.19 - Create general purpose partition.20 - Enable the enhanced user area.21 - Enable write reliability per partition.22 - Print the response to STATUS_SEND (CMD13).23 - Enable the boot partition.24 - Set Boot Bus Conditions.25 - Enable the eMMC BKOPS feature.26 - Permanently enable the eMMC H/W Reset feature.27 - Permanently disable the eMMC H/W Reset feature.28 - Send Sanitize command.29 - Program authentication key for the device.30 - Counter value for the rpmb device will be read to stdout.31 - Read from rpmb device to output.32 - Write to rpmb device from data file.33 - Enable the eMMC cache feature.34 - Disable the eMMC cache feature.35 - Print and parse CID data.36 - Print and parse CSD data.37 - Print and parse SCR data.38