Christian Löhle c62dd8e415 mmc-utils: Implement alternative boot operation
Implements the alternative boot operation for eMMCs.
Note the limitations of the help.

This is mostly useful for testing purposes if you set
up the boot partition configuration correctly.

Usage:
$ sudo dd if=/dev/mmcblk2boot0 of=bootdatammcblk count=2
2+0 records in
2+0 records out
1024 bytes (1.0 kB, 1.0 KiB) copied, 0.00482308 s, 212 kB/s

$ sudo ./mmc boot_operation bootdata /dev/mmcblk2

$ diff -s bootdata bootdatammcblk
Files bootdata and bootdatammcblk are identical

Signed-off-by: Christian Loehle <cloehle@hyperstone.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Link: https://lore.kernel.org/r/f999a7ed7bb645948ac74d5d5341e913@hyperstone.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-11-09 11:52:52 +01:00
2018-02-16 20:19:35 -05:00
2015-03-24 22:09:55 -04:00
2022-09-27 14:16:03 +02:00
2022-01-25 17:19:41 +01:00

MMC tools (mmc-utils)
=====================

mmc-utils is a tool for configuring MMC storage devices from userspace.

Contribution guidelines
-----------------------

The project works using a mailing list patch submission process, similar to the
process used for the Linux kernel itself.

One can document themselves by reading how to submit a patch in the official
Linux kernel documentation:
https://www.kernel.org/doc/html/latest/process/submitting-patches.html

Not all sections apply but it should be a good way to get started.

A patch should be sent as a mail (not as an attachement, see documentation
above) to the linux-mmc@vger.kernel.org mailing list with maintainers as
Cc recipients.

Maintainers
-----------

Avri Altman <avri.altman@wdc.com>
Ulf Hansson <ulf.hansson@linaro.org>

License
-------

This project is licensed under GPL-2.0-only.
S
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