On 09/01/2016 08:12 PM, Max Ruttenberg wrote:

Thanks for getting back to me.

Hi,

please avoid top-posting.

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.

Which FPGA vendor/model is that, Altera or Xilinx ?

There are two options -- check drivers/fpga/ if there isn't already some implementation OR use the FPGA manager in Linux to handle the FPGA bitstream loading and binding of various drivers to the cores synthesised in the FPGA.

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