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| /rk3399_rockchip-uboot/drivers/pci/ |
| H A D | pci-uclass.c | 4d8615cbf552843c6033daabf3495a1b7fc9dce7 Sat Jul 18 16:20:04 UTC 2015 Bin Meng <bmeng.cn@gmail.com> dm: pci: Use complete bdf in all pci config read/write routines
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>
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