[U-Boot] Problem with PCI Express connecting 2 MPC8544

[sardamaxima <fhpworks@hotmail.com>]

I am trying to activate a PCIe link between two MPC8544 processor's on a
custom board.
One processor is configured as Root Complex(cfg_host_agt[0:2] = '111') and
the other processor as endpoint (cfg_host_agt[0:2] = '101').

 Only PCIe1 is active in both processors (cfg_IO_ports[0:2] = '010')

 In u-boot I set the following flags in both processors:

#define CONFIG_PCI           
#undef CONFIG_PCI1           
#define CONFIG_PCIE1           
#undef CONFIG_PCIE2         
#undef CONFIG_PCIE3         
#define CONFIG_FSL_PCI_INIT    
#define CONFIG_FSL_PCIE_RESET  

In the first processor (configured as RC) I get the following output(u-boot
1.3.0-rc3):
"
 pci_init_board: devdisr=7000008, io_sel=2, host_agent=7
    PCIE1 connected to Slot2 as Root Complex (base address e000a000)
...PCIE LTSSM=0x16, Negotiated link width=1
               Scanning PCI bus 01
    PCIE1 on bus 00 - 01 
...
"
the link is well negotiated but if i do  "pci" in u-boot console it only
shows one device:
"
=> pci
Scanning PCI devices on bus 0
BusDevFun  VendorId   DeviceId   Device Class       Sub-Class
_____________________________________________________________
00.00.00   0x1957     0x0033     Processor               0x20
"






 In the second processor (configured as EP) I get the following output:
"
...
   pci_init_board: devdisr=7000008, io_sel=2, host_agent=5

   PCIE1 connected to Slot2 as End Point (base address e000a000)
                Scanning PCI bus 00
 PCI Scan: Found Bus 0, Device 1, Function 0
        00  01  1957  0033  0b20  00
...
"
 Here i am using an old version of u-boot (1.3.0-rc3). It seems more
straightforward to work. I've considered updating to the latest u-boot but
since we had serious problems with DDR configuration and this has changed
considerably since the version I am using I am a little reluctant into an
update.


Someone give me a clue?

thanks a lot.

Daniel

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