help
UBIFS is a file system for flash devices which works on top of UBI.
+config MMC_SPEED_MODE_SET
+ bool "set speed mode using mmc command"
+ depends on CMD_MMC
+ default n
+ help
+ Enable setting speed mode using mmc rescan and mmc dev commands.
+ The speed mode is provided as the last argument in these commands
+ and is indicated using the index from enum bus_mode in
+ include/mmc.h. A speed mode can be set only if it has already
+ been enabled in the device tree.
endmenu