Add extcsd write-protect read/write code

This was posted to linux-mmc@ by Johan Rudholm.

Signed-off-by: Chris Ball <cjb@laptop.org>
4 files changed
tree: a54356dd7f5595b8203b8624531a71edd39690d5
  1. Makefile
  2. man/
  3. mmc.c
  4. mmc.h
  5. mmc_cmds.c
  6. mmc_cmds.h