Re: Resetting PCI-E devices after linux boot

[Jake Magee <jakemagee@gmail.com>]

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Dan,

Were you able to get PCI-E hotplug working?  I could not get this working
myself and assumed that driver support was lacking.  I'm actually using a
PPC405.

Thanks,
Jake


On Thu, Mar 25, 2010 at 8:26 PM, Dan Wilson <dwilson@fulcrummicro.com>wrote:

> We are building a PCI-E device for use in an embedded system with an 85xx
> processor.  One of our customers is adamant that linux PCI-E hot-swap
> support will not allow us to either bring the device up after linux boot
> (i.e., the PCI-E device must be present when linux scans for PCI-E devices
> at startup) or to reset the device once linux is up.  It was our impression
> that the PCI-E hot-swap support should allow for devices to appear after
> linux boot, be properly initialized, and then later be able to shut them
> down and bring them back up again.
>
> Has anyone successfully used the PCI-E hot-swap capabilities in the linux
> kernel in a PPC 85xx environment?  Any known gotchas we need to be aware of?
>
> Thanks in advance for your responses,
>
> Dan.
>
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