Physmap compat support

configname: CONFIG_MTD_PHYSMAP_COMPAT

Linux Kernel Configuration
└─>Device Drivers
└─>Memory Technology Device (MTD) support
└─>Mapping drivers for chip access
└─>Physmap compat support
In linux kernel since version 2.6.29 (release Date: 2009-03-23)  
Setup a simple mapping via the Kconfig options. Normally the
physmap configuration options are done via your board's
resource file.

If unsure, say N here.