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Chuanhong Guo 86fdc8abed ath79: ar8216: make switch register access atomic
reg accesses on integrated ar8229 sometimes fails. As a result, phy read
got incorrect port status and wan link goes down and up mysteriously.
After comparing ar8216 with the old driver, these local_irq_save/restore
calls are the only meaningful differences I could find and it does fix
the issue.
The same changes were added in svn r26856 by Gabor Juhos:
ar71xx: ag71xx: make switch register access atomic

As I can't find the underlying problem either, this hack is broght
back to fix the unstable link issue.
This hack is only suitable for ath79 mdio and may easily break the
driver on other platform. Limit it to ath79-only as a target patch.

Fixes: FS#2216
Fixes: FS#3226
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
2020-09-30 15:56:05 +08:00
..
imagebuilder imagebuilder: add missing libfakeroot files 2020-09-29 00:06:32 +01:00
linux ath79: ar8216: make switch register access atomic 2020-09-30 15:56:05 +08:00
sdk build: SDK/IB reproducible and faster compression 2020-08-23 18:55:49 +02:00
toolchain build: improve ccache support 2020-07-11 15:19:53 +02:00
Config.in build: define PWM_SUPPORT arch feature flag 2020-09-25 19:32:33 +02:00
Makefile build: make <subdir>/install opt-in, use it for target/ only 2017-02-09 13:51:35 +01:00