* ARM kirkwood: how to run kirkwood_pcie_init() from kernel module
@ 2009-11-16 9:32 Dieter Kiermaier
2009-11-18 3:10 ` saeed bishara
0 siblings, 1 reply; 3+ messages in thread
From: Dieter Kiermaier @ 2009-11-16 9:32 UTC (permalink / raw)
To: linux-arm-kernel
Hi all,
sorry for disturbing and also sorry for my - maybe strange - question ;)
I've got the following problem:
I want to boot my fpga before I start the pci layer.
To achieve this it is necessary to start the pci layer somewhat after flashing my fpga.
So what I need is to run kirkwood_pcie_init() from inside my (flashing) driver.
Do you know a way how to realize this?
The header common.h isn't meant to include it from anywhere else than from kirkwood *_setup.c files, right?
Is it possible to do a EXPORT_SYMBOL(kirkwood_pcie_init) somehow?
I've tried it allready but get linker warnings and function isn't called...
Do you have an idea how I can do that?
Many many thanks in advance,
Dieter
^ permalink raw reply [flat|nested] 3+ messages in thread
* ARM kirkwood: how to run kirkwood_pcie_init() from kernel module
2009-11-16 9:32 ARM kirkwood: how to run kirkwood_pcie_init() from kernel module Dieter Kiermaier
@ 2009-11-18 3:10 ` saeed bishara
2009-11-18 7:09 ` Dieter Kiermaier
0 siblings, 1 reply; 3+ messages in thread
From: saeed bishara @ 2009-11-18 3:10 UTC (permalink / raw)
To: linux-arm-kernel
please note that this function linked into the init section.
On Mon, Nov 16, 2009 at 3:32 AM, Dieter Kiermaier <dk-arm-linux@gmx.de> wrote:
> Hi all,
>
> sorry for disturbing and also sorry for my - maybe strange - question ;)
>
> I've got the following problem:
>
> I want to boot my fpga before I start the pci layer.
> To achieve this it is necessary to start the pci layer somewhat after flashing my fpga.
>
> So what I need is to run kirkwood_pcie_init() from inside my (flashing) driver.
> Do you know a way how to realize this?
>
> The header common.h isn't meant to include it from anywhere else than from kirkwood *_setup.c files, right?
>
> Is it possible to do a EXPORT_SYMBOL(kirkwood_pcie_init) somehow?
>
> I've tried it allready but get linker warnings and function isn't called...
>
> Do you have an idea how I can do that?
>
> Many many thanks in advance,
> Dieter
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* ARM kirkwood: how to run kirkwood_pcie_init() from kernel module
2009-11-18 3:10 ` saeed bishara
@ 2009-11-18 7:09 ` Dieter Kiermaier
0 siblings, 0 replies; 3+ messages in thread
From: Dieter Kiermaier @ 2009-11-18 7:09 UTC (permalink / raw)
To: linux-arm-kernel
Hi,
> please note that this function linked into the init section.
I was not able to call the kirkwood_pcie_init. Is there a way?
My idea after fighting a few hours with this issue was that
I couldn't call init functions because init code is freed from kernel after bootup,
isn't it?
But finally I got it working with fakephp by doing:
#disconnect my fpga
echo 0 > /sys/bus/pci/slots/0000:01:08.0/power
#disconnect my bridge
echo 0 > /sys/bus/pci/slots/0000:00:01.0/power
#
flashing my fpga.......
#initiate bus rescan
echo 1 > /sys/bus/pci/rescan
I have no idea why it doesn't work without fakephp (because pci subsystem also allows disabling
the devices via sysfs) but if I did it without fakephp
echo 1 > /sys/bus/pci/rescan
has absolutely no effect.
But now it works as expected.
Many thanks,
Dieter
>
> On Mon, Nov 16, 2009 at 3:32 AM, Dieter Kiermaier <dk-arm-linux@gmx.de> wrote:
> > Hi all,
> >
> > sorry for disturbing and also sorry for my - maybe strange - question ;)
> >
> > I've got the following problem:
> >
> > I want to boot my fpga before I start the pci layer.
> > To achieve this it is necessary to start the pci layer somewhat after flashing my fpga.
> >
> > So what I need is to run kirkwood_pcie_init() from inside my (flashing) driver.
> > Do you know a way how to realize this?
> >
> > The header common.h isn't meant to include it from anywhere else than from kirkwood *_setup.c files, right?
> >
> > Is it possible to do a EXPORT_SYMBOL(kirkwood_pcie_init) somehow?
> >
> > I've tried it allready but get linker warnings and function isn't called...
> >
> > Do you have an idea how I can do that?
> >
> > Many many thanks in advance,
> > Dieter
> >
> > _______________________________________________
> > linux-arm-kernel mailing list
> > linux-arm-kernel at lists.infradead.org
> > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
> >
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2009-11-18 7:09 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2009-11-16 9:32 ARM kirkwood: how to run kirkwood_pcie_init() from kernel module Dieter Kiermaier
2009-11-18 3:10 ` saeed bishara
2009-11-18 7:09 ` Dieter Kiermaier
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