Re: [U-Boot] [PATCH] pci: gate print info of reading vender id with CONFIG_DM_PCI

28 Jan 2016

      On Thu, Jan 28, 2016 at 3:43 PM, Qianyu Gong qianyu.gong@nxp.com wrote:
...
Hi,
...
-----Original Message-----
From: Bin Meng [mailto:bmeng.cn@gmail.com]
Sent: Thursday, January 28, 2016 3:30 PM
To: Qianyu Gong qianyu.gong@nxp.com
Cc: U-Boot Mailing List u-boot@lists.denx.de
Subject: Re: [U-Boot] [PATCH] pci: gate print info of reading vender id with
CONFIG_DM_PCI
On Thu, Jan 28, 2016 at 3:15 PM, Gong Qianyu Qianyu.Gong@nxp.com wrote:
...
From: Mingkai Hu Mingkai.Hu@freescale.com
Referring to 'commit ff3e077bd23c ("dm: pci: Add a uclass for PCI")'.
For legacy PCIe driver, it needs loop to read the vender_id from devie
0 to devie 255 to check if there is device available.
Reading non-existen device will trigger the "Cannot read bus
configuration: -1" information.
Signed-off-by: Mingkai Hu Mingkai.Hu@freescale.com
Signed-off-by: Gong Qianyu Qianyu.Gong@nxp.com

Which pci controller are you testing?
[snip]
Regards,
Bin
Designware PCIe controller on LS2085A.
Please check commit 7ba34ff09f1ef105521f914e4ad4e4ac19975bac "pci:
layerscape: Adjust the return value when ls_pcie_addr_valid() fails"
which is already in mainline.
Regards,
Bin