The existing driver model pci codes have several bugs when it comes to a pci topology with more than 2 pci bridges, which is unfortunately the case on the Intel Queensbay/Topcliff chipset.
With those fixes, now U-Boot can boot on the Intel Crown Bay board with driver model pci enabled. Testing shows that 'pci' command could discover all pci devices with their configuration space configured correctly. So does the 'dm tree' command.
Bin Meng (6): Fix incorrect comments in linker_lists.h dm: pci: Correct primary/secondary/subordinate bus number assignment dm: pci: Use complete bdf in all pci config read/write routines dm: pci: Pass only device/function to pci_bus_find_devfn() dm: pci: Support bridge device configuration correctly x86: Convert to use driver model pci on queensbay/crownbay
arch/x86/cpu/queensbay/Makefile | 1 - arch/x86/cpu/queensbay/tnc.c | 5 --- arch/x86/cpu/queensbay/tnc_pci.c | 46 ------------------------ arch/x86/dts/crownbay.dts | 6 +++- configs/crownbay_defconfig | 1 + drivers/pci/pci-uclass.c | 54 ++++++++++++++--------------- drivers/pci/pci_auto.c | 75 +++++++++++++++++++++++++++++++++------- drivers/pci/pci_common.c | 7 +++- include/linker_lists.h | 20 +++++------ 9 files changed, 110 insertions(+), 105 deletions(-) delete mode 100644 arch/x86/cpu/queensbay/tnc_pci.c