Support 8-bit buswidth

configname: CONFIG_MTD_MAP_BANK_WIDTH_1

Linux Kernel Configuration
└─>Device Drivers
└─>Memory Technology Devices (MTD)
└─>RAM/ROM/Flash chip drivers
└─>Support 8-bit buswidth
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
If you wish to support CFI devices on a physical bus which is
8 bits wide, say 'Y'.

depends
CONFIG_MTD

is depended by
CONFIG_MTD_CFI_GEOMETRY