NAME

       cfi, cfid — driver for Common Flash Interface (CFI) NOR flash

SYNOPSIS

       device cfi
       device cfid
       options CFI_SUPPORT_STRATAFLASH
       options CFI_ARMEDANDDANGEROUS

       In /boot/device.hints:
       hint.cfi.0.at="nexus0"
       hint.cfi.0.maddr=0x74000000
       hint.cfi.0.msize=0x4000000

       In DTS file:
       flash@74000000 {
         compatible = "cfi-flash";
         reg = <0x74000000 0x4000000>;
       };

DESCRIPTION

       The  cfi  device  driver provides a management interface to NOR flash devices supporting the Common Flash
       Interface (CFI) specification.  Its companion device cfid  provides  a  geom(4)  disk  interface  to  the
       device.

       Special support for features of the Intel StrataFlash line are available with the CFI_SUPPORT_STRATAFLASH
       kernel  option.   Additional  support  for write-once bits to switch part of Intel StrataFlash devices to
       read-only can be enabled by the CFI_ARMEDANDDANGEROUS kernel option.

SEE ALSO

       led(4)

HISTORY

       The cfi device driver first appeared in FreeBSD 8.0.

AUTHORS

       The cfi driver was written by Juniper Networks with StrataFlash support by
       Sam Leffler.  This manual page was written by SRI International and the University of Cambridge  Computer
       Laboratory  under  DARPA/AFRL  contract (FA8750-10-C-0237) (“CTSRD”), as part of the DARPA CRASH research
       programme.

Debian                                          January 20, 2016                                          CFI(4)