Jonas Gorski 79023635ec ar71xx: rb493g: fix gpio-mdio accesses under load ...

It seems that there are maximum timings for mdio accesses that can be
hit when the system is under load and the thread is scheduled during
a read or write access. Since there is no way of knowing if this
happens as there is not even a parity bit, try to work around it
by disabling interrupts during any gpio-mdio accesses.

Performance impact seems to be neglectable, as mdio accesses are not
that often.

Hopefully fixes #19500.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

Backport of r46012.

git-svn-id: svn://svn.openwrt.org/openwrt/branches/chaos_calmer@46016 3c298f89-4303-0410-b956-a3cf2f4a3e73

2015-06-17 10:22:06 +00:00

..

imagebuilder

imagebuilder: create cache directory if needed (#18629)

2015-06-01 06:15:39 +00:00

linux

ar71xx: rb493g: fix gpio-mdio accesses under load

2015-06-17 10:22:06 +00:00

sdk

sdk: filter out CONFIG_SIGNED_PACKAGES for generated config

2015-04-25 12:39:02 +00:00

toolchain

toolchain: respect CONFIG_VERSION_FILENAMES and add host system suffix

2015-02-07 21:01:37 +00:00

Config.in

build: remove obsolete references to cris and avr32

2015-03-24 10:07:40 +00:00

Makefile

target: do not make target/*/install depend on target/*/compile - removes one redundant kernel build dir call on target/install

2012-06-06 17:24:05 +00:00