Add extension to the 'mmc' command to read out the card registers.
Currently, only the eMMC OCR/CID/CSD/EXTCSD/RCA/DSR register are
supported. A register value can either be displayed or read into
an environment variable.
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
The patch drops 0x prefixes because all numbers are interpreted as HEX
by default.
Also, it fixes the mismatch between input arguments and output at 'mmc
write' example. Now it's 256 (0x100) blocks.
Signed-off-by: Alexander Shirokov <shirokovalexs@gmail.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Currently all shell command docs are put in the doc/usage root.
Let's group them into cmd/ sub-directory.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
