Setting this bit stops BCM53125 (bgmac actually) from receiving any
packets. This bit is cleared conditionally in b53_switch_reset and it
seems the same is done in bcmrobo.c which never sets that bit again.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@35723 3c298f89-4303-0410-b956-a3cf2f4a3e73