On 19 July 2015 at 19:59, Simon Glass sjg@chromium.org wrote:
On 18 July 2015 at 10:20, Bin Meng bmeng.cn@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@gmail.com
drivers/pci/pci-uclass.c | 46 +++++++++++++++++++++++----------------------- 1 file changed, 23 insertions(+), 23 deletions(-)
Acked-by: Simon Glass sjg@chromium.org Tested-by: Simon Glass sjg@chromium.org
Applied to u-boot-x86, thanks!