[U-Boot] [PATCH 2/2] pci: Change the first CFG read to Vendor ID in enumeration

[Bin Meng]

On Mon, Oct 8, 2018 at 4:36 PM Zhiqiang Hou <Zhiqiang.Hou at nxp.com> wrote:
>
> From: Hou Zhiqiang <Zhiqiang.Hou at nxp.com>
>
> As the PCIe specification recommend reading the Vendor ID register
> to determine if a Function is present, read the Vendor ID of a
> non-existent Function must not result in system error, so we'd better
> make the first CFG read to Vendor ID instead of Header Type register
> in the PCIe enumeration.
>
> Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou at nxp.com>
> ---
>  drivers/pci/pci.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>

Simon, do we need fix the non-DM version or adding new "capability" to
the non-DM drivers? I guess the answer is no and we should set some
deadline for PCI DM conversion too?

Regards,
Bin