This patch removes the \n after the help message for mmcinfo.
This resulted in an empty line being displayed after the mmcinfo line
when the help command was given.

Signed-off-by: Frans Meulenbroeks <fransmeulenbroeks@gmail.com>

The curr_device variable isn't used outside of cmd_mmc, so mark it static
to avoid conflicts with other pieces of code (like sata which also exports
a curr_device).  Otherwise we end up with stuff like:
common/libcommon.a(cmd_sata.o):(.data.curr_device+0x0):
	multiple definition of `curr_device'
common/libcommon.a(cmd_mmc.o):(.data.curr_device+0x0): first defined here

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

Many of the help messages were not really helpful; for example, many
commands that take no arguments would not print a correct synopsis
line, but "No additional help available." which is not exactly wrong,
but not helpful either.

Commit ``Make "usage" messages more helpful.'' changed this
partially. But it also became clear that lots of "Usage" and "Help"
messages (fields "usage" and "help" in struct cmd_tbl_s respective)
were actually redundant.

This patch cleans this up - for example:

Before:
	=> help dtt
	dtt - Digital Thermometer and Thermostat

	Usage:
	dtt         - Read temperature from digital thermometer and thermostat.

After:
	=> help dtt
	dtt - Read temperature from Digital Thermometer and Thermostat

	Usage:
	dtt

Signed-off-by: Wolfgang Denk <wd@denx.de>

find_mmc_device returns NULL if an invalid device number is specified.
Check for this to avoid dereferencing NULL pointers.

Signed-off-by: Rabin Vincent <rabin@rab.in>

Remove some repeated words and superfluous newlines in the mmc command
help entries.

Signed-off-by: Rabin Vincent <rabin@rab.in>

This patch improves device command for selecting mmc device

Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

Fix up a few dangling commands like in "Command usage cleanup" commit.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

Don't use code of new MMC framework in cmd_mmc if CONFIG_GENERIC_MMC
isn't enabled.

Signed-off-by: Dirk Behme <dirk.behme@googlemail.com>

Signed-off-by: Wolfgang Denk <wd@denx.de>

Here's a new framework (based roughly off the linux one) for managing
MMC controllers.  It handles all of the standard SD/MMC transactions,
leaving the host drivers to implement only what is necessary to
deal with their specific hardware.

This also hooks the infrastructure into the PowerPC board code
(similar to how the ethernet infrastructure now hooks in)

Some of this code was contributed by Dave Liu <daveliu@freescale.com>

Signed-off-by: Andy Fleming <afleming@freescale.com>