]> git.baikalelectronics.ru Git - kernel.git/commit
net: ethernet: ti: cpsw: disable mq feature for "AM33xx ES1.0" devices
authorIvan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Wed, 16 May 2018 22:21:45 +0000 (01:21 +0300)
committerDavid S. Miller <davem@davemloft.net>
Thu, 17 May 2018 19:11:55 +0000 (15:11 -0400)
commit020feafffeaab395e03192e798e81859f5681950
treecad70b48c53c4520836077295e7b1a9f8bd7c813
parent525bde8f2ff203f9a9db64e3c138fc0df5a0fef6
net: ethernet: ti: cpsw: disable mq feature for "AM33xx ES1.0" devices

The early versions of am33xx devices, related to ES1.0 SoC revision
have errata limiting mq support. That's the same errata as
commit 082edb2374f0 ("drivers: net: cpsw: add am335x errata workarround for
interrutps")

AM33xx Errata [1] Advisory 1.0.9
http://www.ti.com/lit/er/sprz360f/sprz360f.pdf

After additional investigation were found that drivers w/a is
propagated on all AM33xx SoCs and on DM814x. But the errata exists
only for ES1.0 of AM33xx family, limiting mq support for revisions
after ES1.0. So, disable mq support only for related SoCs and use
separate polls for revisions allowing mq.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/ti/cpsw.c