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2 MMC tools introduction 2 MMC tools introduction
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4 4
5 There is one MMC test tools called mmc-utils, !! 5 There is one MMC test tools called mmc-utils, which is maintained by Chris Ball,
6 you can find it at the below public git reposi 6 you can find it at the below public git repository:
7 7
8 https://git.kernel.org/pub/scm/utils/m !! 8 https://git.kernel.org/cgit/linux/kernel/git/cjb/mmc-utils.git/
9 9
10 Functions 10 Functions
11 ========= 11 =========
12 12
13 The mmc-utils tools can do the following: 13 The mmc-utils tools can do the following:
14 14
15 - Print and parse extcsd data. 15 - Print and parse extcsd data.
16 - Determine the eMMC writeprotect status. 16 - Determine the eMMC writeprotect status.
17 - Set the eMMC writeprotect status. 17 - Set the eMMC writeprotect status.
18 - Set the eMMC data sector size to 4KB by dis 18 - Set the eMMC data sector size to 4KB by disabling emulation.
19 - Create general purpose partition. 19 - Create general purpose partition.
20 - Enable the enhanced user area. 20 - Enable the enhanced user area.
21 - Enable write reliability per partition. 21 - Enable write reliability per partition.
22 - Print the response to STATUS_SEND (CMD13). 22 - Print the response to STATUS_SEND (CMD13).
23 - Enable the boot partition. 23 - Enable the boot partition.
24 - Set Boot Bus Conditions. 24 - Set Boot Bus Conditions.
25 - Enable the eMMC BKOPS feature. 25 - Enable the eMMC BKOPS feature.
26 - Permanently enable the eMMC H/W Reset featu 26 - Permanently enable the eMMC H/W Reset feature.
27 - Permanently disable the eMMC H/W Reset feat 27 - Permanently disable the eMMC H/W Reset feature.
28 - Send Sanitize command. 28 - Send Sanitize command.
29 - Program authentication key for the device. 29 - Program authentication key for the device.
30 - Counter value for the rpmb device will be r 30 - Counter value for the rpmb device will be read to stdout.
31 - Read from rpmb device to output. 31 - Read from rpmb device to output.
32 - Write to rpmb device from data file. 32 - Write to rpmb device from data file.
33 - Enable the eMMC cache feature. 33 - Enable the eMMC cache feature.
34 - Disable the eMMC cache feature. 34 - Disable the eMMC cache feature.
35 - Print and parse CID data. 35 - Print and parse CID data.
36 - Print and parse CSD data. 36 - Print and parse CSD data.
37 - Print and parse SCR data. 37 - Print and parse SCR data.
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