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/rk3399_rockchip-uboot/drivers/mmc/
H A Dmmc.cfc5b32fbf3bd43dabaf409e424e0bfb9a1b4df26 Thu Dec 25 16:22:25 UTC 2014 Andrew Gabbasov <andrew_gabbasov@mentor.com> mmc: Skip changing bus width for MMC cards earlier than version 4.0

Wider bus widths (larger than default 1 bit) appeared in MMC standard
version 4.0. So, for MMC cards of any earlier version trying to change
the bus width (including ext_csd comparison) does not make any sense.
It may work incorrectly and at least cause unnecessary timeouts.
So, just skip the entire bus width related activity for earlier versions.

Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com>
Tested-by: Alexey Brodkin <abrodkin@synopsys.com>