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

Bin Meng bmeng.cn at gmail.com
Thu Jan 28 09:02:12 CET 2016


On Thu, Jan 28, 2016 at 3:43 PM, Qianyu Gong <qianyu.gong at nxp.com> wrote:
> Hi,
>
>> -----Original Message-----
>> From: Bin Meng [mailto:bmeng.cn at gmail.com]
>> Sent: Thursday, January 28, 2016 3:30 PM
>> To: Qianyu Gong <qianyu.gong at nxp.com>
>> Cc: U-Boot Mailing List <u-boot at 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 at nxp.com> wrote:
>> > From: Mingkai Hu <Mingkai.Hu at 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 at freescale.com>
>> > Signed-off-by: Gong Qianyu <Qianyu.Gong at 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


More information about the U-Boot mailing list