On Thu, 2009-12-03 at 11:52 -0800, David Hawkins wrote:
>
> Really? I thought the pci_dev structures represent the
> devices found on the PCI bus, and the IRQ line in
> that structure was merely copied from the configuration
> space registers.
No, it's not. In fact it's mostly irrelevant. It has
> So are you saying linux should be writing the irq number to the
> INTERRUPT_LINE config reg? This is what I expected but I do not see
> it.
No it won't necessarily touch it, this is not terribly useful anyways.
Linux will assign an interrupt based on the informations from the
device-tree an
On Thursday 03 December 2009 20:39:00 Jeff Hane wrote:
> > Can you clarify:
> >
> > 1. 460EX is your PCI host CPU?
>
> yes. We are using a canyonlands board with 460ex.
PCI works on Canyonlands without any problems. I just tested latest Linux
release (2.6.32) with an PCI USB card:
-bash-3.2# u
Hi Wolfgang,
In message <4b1816f9.1020...@ovro.caltech.edu> you wrote:
Yep. It might require enabling a PCI subsystem in U-Boot.
I recall playing with a Yosemite board and a PCI card,
but I forget whether I had to do anything to enable
PCI configuration space setup. Post a question to the
U-Boo
Dear David Hawkins,
In message <4b1816f9.1020...@ovro.caltech.edu> you wrote:
>
> Yep. It might require enabling a PCI subsystem in U-Boot.
> I recall playing with a Yosemite board and a PCI card,
> but I forget whether I had to do anything to enable
> PCI configuration space setup. Post a questi
On Thu, Dec 03, 2009 at 11:39:00AM -0800, Jeff Hane wrote:
> On Thu, 2009-12-03 at 09:11 -0800, David Hawkins wrote:
> > Hi Jeff,
> >
> > > I'm trying to get interrupts working for my PCI device on a 460ex and
> > > am having problem. My ISR never triggers.
> > >
> > > I'm new to PCI(and ppc) a
Hi Ira,
When Linux is assigning BARs and IRQs, it writes the BAR addresses to
the PCI cards, but does not write the IRQ. This was my experience with
PCI hotplug.
Ooh, subtle.
Bottom line is; if the IRQ field of lspci is 0, then you
need to figure out that problem first :)
In the PCI hotpl
On Thu, Dec 03, 2009 at 11:52:25AM -0800, David Hawkins wrote:
> Hi Jeff,
>
> > yes. We are using a canyonlands board with 460ex.
>
> Ok.
>
> >> 2. You have some PCI device - what? Have you tested it works in a
> >> standard PCI bus? Eg. ran lspci from an x86 host.
> >
> > It is a FPGA boa
Hi Jeff,
yes. We are using a canyonlands board with 460ex.
Ok.
2. You have some PCI device - what? Have you tested it works in a
standard PCI bus? Eg. ran lspci from an x86 host.
It is a FPGA board that we are using to develop a video codec/SOC. We
have not connected it an x86; howev
On Thu, 2009-12-03 at 09:11 -0800, David Hawkins wrote:
> Hi Jeff,
>
> > I'm trying to get interrupts working for my PCI device on a 460ex and
> > am having problem. My ISR never triggers.
> >
> > I'm new to PCI(and ppc) and LDD said that I could read the config reg
> > INTURRUPT_LINE to get th
Hi Jeff,
I'm trying to get interrupts working for my PCI device on a 460ex and
am having problem. My ISR never triggers.
I'm new to PCI(and ppc) and LDD said that I could read the config reg
INTURRUPT_LINE to get the interrupt assigned to my PCI device. Well,
this always reads zero.
After
Hi Jeff,
On Thursday 03 December 2009 07:21:56 Jeff Hane wrote:
> I'm trying to get interrupts working for my PCI device on a 460ex and
> am having problem. My ISR never triggers.
Which 460EX board is this? Canyonlands or some custom board?
> I'm new to PCI(and ppc) and LDD said that I could
Hello,
I'm trying to get interrupts working for my PCI device on a 460ex and
am having problem. My ISR never triggers.
I'm new to PCI(and ppc) and LDD said that I could read the config reg
INTURRUPT_LINE to get the interrupt assigned to my PCI device. Well,
this always reads zero.
After rea
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