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mmc rpmb write-key <rpmb device> <key file>
  Program authentication key which is 32 bytes length and stored in the specified file.
  Also you can specify '-' instead of key file path and utility will read the key from stdin.
  BEWARE: key can be programmed only once!
  Example:
    $ echo -n AAAABBBBCCCCDDDDEEEEFFFFGGGGHHHH | mmc rpmb write-key /dev/mmcblk0rpmb -

mmc rpmb read-counter <rpmb device>
  Counter value for the <rpmb device> will be read to stdout.

mmc rpmb read-block <rpmb device> <address> <blocks count> <output file> [key file]
  Blocks of 256 bytes will be read from <rpmb device> to output file or stdout if '-'
  is specified instead of regular path. If key is specified - read data will be verified.
  Instead of regular path you can specify '-' and key will be read from stdin.
  Example:
    $ echo -n AAAABBBBCCCCDDDDEEEEFFFFGGGGHHHH | \
        mmc rpmb read-block /dev/mmcblk0rpmb 0x02 2 /tmp/block -
  or read the block without verification
    $ mmc rpmb read-block /dev/mmcblk0rpmb 0x02 2 /tmp/block

mmc rpmb write-block <rpmb device> <address> <256 byte data file> <key file>
  Block of 256 bytes will be written from data file to <rpmb device>.
  Also you can specify '-' instead of key file path or data file and utility will read the
  data from stdin.
  Example:
    $ (awk 'BEGIN {while (c++<256) printf "a"}' | echo -n AAAABBBBCCCCDDDDEEEEFFFFGGGGHHHH) | \
      mmc rpmb write-block /dev/mmcblk0rpmb 0x02 - -
Signed-off-by: Roman Pen <r.peniaev@gmail.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>,
Cc: Ben Gardiner <bengardiner@nanometrics.ca>,
Signed-off-by: Chris Ball <chris@printf.net>

Signed-off-by: Ben Gardiner <ben.l.gardiner@gmail.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca>
Signed-off-by: Chris Ball <cjb@laptop.org>

mmc status get </path/to/mmcblkX>
Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca>
Signed-off-by: Chris Ball <cjb@laptop.org>

This patch adds a method to trigger Sanitize command to MMC.
The Sanitize command is used for deleting the unmapped memory region
of the MMC device.
Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>
Acked-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Chris Ball <cjb@laptop.org>

(Note: one-time programmable fuse.)

$ mmc hwreset enable /dev/mmcblk0
$ mmc hwreset disable /dev/mmcblk0

This patch added the method to enable the bkops.
In ext_csd register, BKOPS_EN bit is one-time programable.
So if you want to use the bkops, use the this command.

$ mmc bkops enable /dev/mmcblk0
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewd-by: Venkatraman S <svenkatr@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

In this patch, we add a utility to disable emulation mode in eMMC-4.5.
This is done to increase the data sector size to 4KB.
Signed-off-by: Saugata Das <saugata.das@linaro.org>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Reviewed-by: Namjae Jeon <linkinjeon@gmail.com>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Chris Ball <cjb@laptop.org>

This adds a new option to enable the boot from eMMC
by writing to the 179 ext_csd register.

The example below shows as to enable the mmcblk0boot0
partition and also set/reset the ACK bit).

$ ./mmc bootpart enable 1 1 /dev/mmcblk0boot0
$ ./mmc extcsd read /dev/mmcblk0boot0 | grep PARTITION_CON
Boot configuration bytes [PARTITION_CONFIG: 0x49]
Reported-by: Youssef TRIKI <youssef.triki@st.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

This leaves "extcsd read" pointing to Giuseppe's code.  Also, abstract
out the writeprotect code so that there's only one shared implementation
in print_writeprotect_status(), used by both "extcsd read" and
"writeprotect get".
Signed-off-by: Chris Ball <cjb@laptop.org>

This was posted to linux-mmc@ by Johan Rudholm.
Signed-off-by: Chris Ball <cjb@laptop.org>