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| author | David Bauer <mail@david-bauer.net> | 2018-08-06 16:15:04 +0200 |
|---|---|---|
| committer | Matthias Schiffer <mschiffer@universe-factory.net> | 2018-09-03 23:04:46 +0200 |
| commit | 3444638a05abf7456bb86823c33d651183bd137e (patch) | |
| tree | df3ad7fea13e812957e0f16d57ddc4e3d39899b9 /target/linux/ramips/rt288x | |
| parent | a662d6f6bcdcfd42713d4f4dc2d30698e451d280 (diff) | |
| download | upstream-3444638a05abf7456bb86823c33d651183bd137e.tar.gz upstream-3444638a05abf7456bb86823c33d651183bd137e.tar.bz2 upstream-3444638a05abf7456bb86823c33d651183bd137e.zip | |
ar71xx: fix QCA955X SGMII link loss
The QCA955X is affected by a hardware bug which causes link-loss of the
SGMII link between SoC and PHY. This happens on change of link-state or
speed.
It is not really known what causes this bug. It definitely occurs when
using a AR8033 Gigabit Ethernet PHY.
Qualcomm solves this Bug in a similar fashion. We need to apply the fix
on a per-device base via platform-data as performing the fixup work will
break connectivity in case the SGMII interface is connected to a Switch.
This bug was first proposed to be fixed by Sven Eckelmann in 2016.
https://patchwork.ozlabs.org/patch/604782/
Based-on-patch-by: Sven Eckelmann <sven.eckelmann@open-mesh.com>
Signed-off-by: David Bauer <mail@david-bauer.net>
(cherry picked from commit f4f99ec9737c653815268f2efad0210caaa32e2d)
Diffstat (limited to 'target/linux/ramips/rt288x')
0 files changed, 0 insertions, 0 deletions