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| author | Jonas Gorski <jogo@openwrt.org> | 2015-06-17 09:55:13 +0000 |
|---|---|---|
| committer | Jonas Gorski <jogo@openwrt.org> | 2015-06-17 09:55:13 +0000 |
| commit | dff157eff4e1391e55a640f4a0529cf6c640cf8c (patch) | |
| tree | 15fa75aba4c5814f2ae1baf565b3d957b34b69d3 /target/linux/x86 | |
| parent | 72d1d554f3f6cb6132831a2c716f91f81619339f (diff) | |
| download | master-187ad058-dff157eff4e1391e55a640f4a0529cf6c640cf8c.tar.gz master-187ad058-dff157eff4e1391e55a640f4a0529cf6c640cf8c.tar.bz2 master-187ad058-dff157eff4e1391e55a640f4a0529cf6c640cf8c.zip | |
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>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@46012 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/x86')
0 files changed, 0 insertions, 0 deletions