[PATCH] bcma: support for PCIe Gen 2 as host platform

[John W. Linville]

On Mon, Jul 07, 2014 at 09:37:10PM +0200, Rafał Miłecki wrote:
> On 7 July 2014 11:38, Rafał Miłecki <zajec5 at gmail.com> wrote:
> > On 6 July 2014 14:19, Arend van Spriel <arend at broadcom.com> wrote:
> >> On 06-07-14 13:11, Rafał Miłecki wrote:
> >>> Signed-off-by: Rafał Miłecki <zajec5 at gmail.com>
> >>> ---
> >>> I got reply from Bjorn, that we should *not* depend on PCI_EXP_LNKCAP:
> >>> http://marc.info/?l=linux-pci&m=140457671930896&w=2
> >>>
> >>> So the change since RFC is adding a list of PCIe 1.0 and 2.0 devices.
> >>> Use PCI_EXP_LNKCAP only as a fallback, in case someone tries sth like:
> >>> echo "14e4 4360" > /sys/bus/pci/drivers/bcma-pci-bridge/new_id
> >>
> >> Do you have to know this before or after enumerating the cores? They
> >> have a different core id, right?
> >
> > Sure, having a list of cores would allow me to determine PCIe revision.
> >
> > Unfortunately right now we have only this single bcma_bus_register
> > call that does both: scanning and initialization. I'd need to first
> > scan cores, then determine PCIe revision and finally initialize cores.
> >
> > I wonder if I could try to use bcma_bus_scan_early that was developer
> > for SoC needs...
> 
> John: please kindly drop this patch for now. All other bcma/b43
> patches are unaffected.

OK

-- 
John W. Linville		Someday the world will need a hero, and you
linville at tuxdriver.com			might be all we have.  Be ready.