On Tue, Oct 20, 2020 at 02:13:13AM +0000, Z.q. Hou wrote:

[...]

> > > For NXP Layerscape platforms (the ls1028a and ls2088a are also NXP
> > Layerscape platform), as the error response to AXI/AHB was enabled, it will
> > get UR error and trigger SError on AXI bus when it accesses a non-existent
> > BDF on a link down bus. I'm not clear about how it happens on dra7xxx and
> > imx6, since they doesn't enable the error response to AXI/AHB.
> > 
> > That's exactly the case with DRA7xx as the error response is enabled by
> > default in the platform integration.
> 
> Got feedback from the imx6 owner that imx6 like the dra7xx has the
> error response enabled by default.  Now it's clear that the problem on
> all these platforms is the same.

On IMX6, enabled by default and read-only ? Or it can be changed ? What's
the plan for layerscape on this matter ?

Lorenzo

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