[U-Boot] [U-Boot-DM] FPGA driver over PCI bus

[Max Ruttenberg]

Thanks for getting back to me.

At the moment the FPGA just has logic for peripheral management. Part of
what I'm trying to do in U-Boot is program a bitfile to it over a PCIe
connection.



On Thu, Sep 1, 2016 at 12:07 PM, Marek Vasut <marex at denx.de> wrote:

> On 09/01/2016 04:46 PM, Max Ruttenberg wrote:
> > Hi,
>
> Hi,
>
> > I'm find myself clueless in regards to writing a driver for an FPGA over
> a
> > PCI bus. This U-Boot is running on an NXP t102xrdb board family, if that
> > matters.
> >
> > The documentation in doc/driver-model/pci-info.txt mentions that I can
> use
> > a macro named U_BOOT_PCI_DEVICE as alternative to listing my device in a
> > device tree.
> >
> > I found an example of this in drivers/net/e1000.c, and I tried to follow
> it
> > as much as was applicable (this is an ethernet driver, which my driver is
> > not).
> >
> > But when U-Boot starts up, my "bind" function is never called, even
> though
> > I can tell that my device with the corresponding vendor and device id is
> > detected using the "pci [bus]" command.
> >
> > I appreciate any help I can get.
>
> Switching to the u-boot list and Ccing Simon.
>
> What is loaded in your FPGA ?
>
> --
> Best regards,
> Marek Vasut
>



-- 
Max Ruttenberg,
Member of the Technical Staff
Emu *Technology*
1400 E Angela Blvd, Unit 101
South Bend, IN 46617