Re: [PATCH] net: ethernet: ti: cpsw: disable mq feature for "AM33xx ES1.0" devices

From: David Miller
Date: Thu May 17 2018 - 14:15:47 EST


From: Ivan Khoronzhuk <ivan.khoronzhuk@xxxxxxxxxx>
Date: Thu, 17 May 2018 01:21:45 +0300

> The early versions of am33xx devices, related to ES1.0 SoC revision
> have errata limiting mq support. That's the same errata as
> commit 7da1160002f1 ("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@xxxxxxxxxx>
> ---
>
> Based on net-next/master

Patch applied to net-next, thank you.