[U-Boot] [PATCH 3/6] dm: pci: Use complete bdf in all pci config read/write routines

[Simon Glass]

On 18 July 2015 at 10:20, Bin Meng <bmeng.cn at gmail.com> wrote:
> Currently pci_bus_read_config() and pci_bus_write_config() are
> called with bus number masked off in the parameter bdf, and bus
> number is supposed to be added back in the bridge driver's pci
> config read/write ops if the device is behind a pci bridge.
> However this logic only works for a pci topology where there is
> only one bridge off the root controller. If there is addtional
> bridge in the system, the logic will create a non-existent bdf
> where its bus number gets accumulated across bridges.
>
> To correct this, we change all pci config read/write routines
> to use complete bdf all the way up to the root controller.
>
> Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
> ---
>
>  drivers/pci/pci-uclass.c | 46 +++++++++++++++++++++++-----------------------
>  1 file changed, 23 insertions(+), 23 deletions(-)

Acked-by: Simon Glass <sjg at chromium.org>
Tested-by: Simon Glass <sjg at chromium.org>