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| author | Felix Fietkau <nbd@openwrt.org> | 2011-08-04 17:36:27 +0000 |
|---|---|---|
| committer | Felix Fietkau <nbd@openwrt.org> | 2011-08-04 17:36:27 +0000 |
| commit | 8268bc95d154223dc895d91d7145698b15d03e59 (patch) | |
| tree | b54751568f45b9ef4b3feb77b866856dc732039d /docs/Makefile | |
| parent | d04b90839d229eea9e3d38beb599d5ea6dc3d4dc (diff) | |
| download | upstream-8268bc95d154223dc895d91d7145698b15d03e59.tar.gz upstream-8268bc95d154223dc895d91d7145698b15d03e59.tar.bz2 upstream-8268bc95d154223dc895d91d7145698b15d03e59.zip | |
ag71xx: fix memory corruption issues on ar7240 on ethernet start/stop
When the DMA engine state gets corrupted due to a hardware issues, it
often won't stop rx until a full reset is issued. In that case the hardware
must keep a valid descriptor, otherwise it will write to random places in
system RAM, triggering random crashes. To fix this, keep a dummy descriptor
without a buffer that keeps the DMA engine in a sane state until the reset
is done
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27895 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'docs/Makefile')
0 files changed, 0 insertions, 0 deletions