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authorBaolin Wang <baolin.wang@linaro.org>2016-03-16 20:02:49 +0800
committerJonathan Corbet <corbet@lwn.net>2016-03-31 00:54:22 -0600
commitf3e27a80b782b9b9857157e0a104a8757e72d166 (patch)
treeda848f0981736af207d8e7215b15bdbfdc78eb3e /Documentation/mmc
parentf7ca20deee2b2eac0a43e1dcf75d5d3ee2c6c81e (diff)
downloadlinux-f3e27a80b782b9b9857157e0a104a8757e72d166.tar.bz2
Documentation: mmc: Add the introduction for mmc-utils
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>
Diffstat (limited to 'Documentation/mmc')
-rw-r--r--Documentation/mmc/00-INDEX2
-rw-r--r--Documentation/mmc/mmc-tools.txt34
2 files changed, 36 insertions, 0 deletions
diff --git a/Documentation/mmc/00-INDEX b/Documentation/mmc/00-INDEX
index a9ba6720ffdf..4623bc0aa0bb 100644
--- a/Documentation/mmc/00-INDEX
+++ b/Documentation/mmc/00-INDEX
@@ -6,3 +6,5 @@ mmc-dev-parts.txt
- info on SD and MMC device partitions
mmc-async-req.txt
- info on mmc asynchronous requests
+mmc-tools.txt
+ - info on mmc-utils tools
diff --git a/Documentation/mmc/mmc-tools.txt b/Documentation/mmc/mmc-tools.txt
new file mode 100644
index 000000000000..735509c165d5
--- /dev/null
+++ b/Documentation/mmc/mmc-tools.txt
@@ -0,0 +1,34 @@
+MMC tools introduction
+======================
+
+There is one MMC test tools called mmc-utils, which is maintained by Chris Ball,
+you can find it at the below public git repository:
+http://git.kernel.org/cgit/linux/kernel/git/cjb/mmc-utils.git/
+
+Functions
+=========
+
+The mmc-utils tools can do the following:
+ - Print and parse extcsd data.
+ - Determine the eMMC writeprotect status.
+ - Set the eMMC writeprotect status.
+ - Set the eMMC data sector size to 4KB by disabling emulation.
+ - Create general purpose partition.
+ - Enable the enhanced user area.
+ - Enable write reliability per partition.
+ - Print the response to STATUS_SEND (CMD13).
+ - Enable the boot partition.
+ - Set Boot Bus Conditions.
+ - Enable the eMMC BKOPS feature.
+ - Permanently enable the eMMC H/W Reset feature.
+ - Permanently disable the eMMC H/W Reset feature.
+ - Send Sanitize command.
+ - Program authentication key for the device.
+ - Counter value for the rpmb device will be read to stdout.
+ - Read from rpmb device to output.
+ - Write to rpmb device from data file.
+ - Enable the eMMC cache feature.
+ - Disable the eMMC cache feature.
+ - Print and parse CID data.
+ - Print and parse CSD data.
+ - Print and parse SCR data.