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This patch introduces one mmc test tools called mmc-utils, which is convenient if someone wants to exercise and test MMC/SD devices from userspace. Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
34 lines
1.2 KiB
Text
34 lines
1.2 KiB
Text
MMC tools introduction
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======================
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There is one MMC test tools called mmc-utils, which is maintained by Chris Ball,
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you can find it at the below public git repository:
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http://git.kernel.org/cgit/linux/kernel/git/cjb/mmc-utils.git/
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Functions
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=========
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The mmc-utils tools can do the following:
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- Print and parse extcsd data.
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- Determine the eMMC writeprotect status.
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- Set the eMMC writeprotect status.
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- Set the eMMC data sector size to 4KB by disabling emulation.
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- Create general purpose partition.
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- Enable the enhanced user area.
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- Enable write reliability per partition.
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- Print the response to STATUS_SEND (CMD13).
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- Enable the boot partition.
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- Set Boot Bus Conditions.
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- Enable the eMMC BKOPS feature.
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- Permanently enable the eMMC H/W Reset feature.
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- Permanently disable the eMMC H/W Reset feature.
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- Send Sanitize command.
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- Program authentication key for the device.
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- Counter value for the rpmb device will be read to stdout.
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- Read from rpmb device to output.
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- Write to rpmb device from data file.
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- Enable the eMMC cache feature.
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- Disable the eMMC cache feature.
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- Print and parse CID data.
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- Print and parse CSD data.
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- Print and parse SCR data.
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