tree ab21aef5d28f229402ff01c6fa926b17bca7810a
parent 00c5199cffb1553cab4473f470429830bd5aeff9
author Felix Fietkau <nbd@nbd.name> 1484832009 +0100
committer James Hogan <james.hogan@imgtec.com> 1487011926 +0000

MIPS: Lantiq: Keep ethernet enabled during boot

Disabling ethernet during reboot (only to enable it again when the
ethernet driver attaches) can put the chip into a faulty state where it
corrupts the header of all incoming packets.

This happens if packets arrive during the time window where the core is
disabled, and it can be easily reproduced by rebooting while sending a
flood ping to the broadcast address.

Fixes: 95135bfa7ead ("MIPS: Lantiq: Deactivate most of the devices by default")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Acked-by: John Crispin <john@phrozen.org>
Cc: hauke.mehrtens@lantiq.com
Cc: linux-mips@linux-mips.org
Cc: <stable@vger.kernel.org> # 4.4.x-
Patchwork: https://patchwork.linux-mips.org/patch/15078/
Signed-off-by: James Hogan <james.hogan@imgtec.com>