tree 72758b0cfcea34110e0f2bc7e4154cd777ae56ad
parent 2e7bd5ef98030999eaf4bf101707e595432fc8c2
author Vivien Didelot <vivien.didelot@savoirfairelinux.com> 1459457622 -0400
committer David S. Miller <davem@davemloft.net> 1459819895 -0400

net: dsa: mv88e6xxx: protect FID registers access

Only switch families with 4096 address databases have dedicated FID
registers for ATU and VTU operations.

Factorize the access to the GLOBAL_ATU_FID register and introduce a
mv88e6xxx_has_fid_reg() helper function to protect the access to
GLOBAL_ATU_FID and GLOBAL_VTU_FID.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>