> On Friday 24 March 2006 15:53, Kumar Gala wrote: > > That seems like a driver problem. Does lspci show your devices after > > you boot? Also, what kernel ver are you using? > > No, the device behind the bridge is not recognized, although the bridge > itself is. I am using kernel 2.6.15.
I am trying to use a PCI-X bridge (Intel 31154) on a mpc8540ads running kernel 2.6.15. A USB controller is behind the bridge. When the mpc8540ads is booted with the PCI-X switch disabled, the device behind the bridge is detected (and actually works), and the following messages are printed: PCI: bridge rsrc 0..ffffff (100), parent c01ce78c PCI: bridge rsrc 80000000..9fffffff (200), parent c01ce770 PCI: bridge rsrc fff000..ffffff (101), parent c0217038 PCI: bridge rsrc 9ff00000..9fffffff (200), parent c0217054 PCI: bridge rsrc 9fe00000..9fefffff (1201), parent c0217054 PCI:0000:01:06.0: Resource 0: 9ffff000-9fffffff (f=200) PCI:0000:01:06.0: Resource 1: 9ffe0000-9ffeffff (f=1208) PCI:0000:01:06.0: Resource 2: 9ffd0000-9ffdffff (f=200) The last three lines are for the usb controller. On the other hand, if the PCI-X is enabled, the usb controller is not detected anymore and the messages become: PCI: bridge rsrc 0..ffffff (100), parent c01ce78c PCI: bridge rsrc 80000000..9fffffff (200), parent c01ce770 PCI: bridge rsrc 0..fff (101), parent c0217038 PCI: bridge rsrc 0..fffff (200), parent c0217054 PCI: Cannot allocate resource region 1 of PCI bridge 1 PCI: bridge 1 resource 1 moved to 9ff00000..9fffffff PCI: bridge rsrc 0..fffff (1201), parent c0217054 PCI: Cannot allocate resource region 2 of PCI bridge 1 PCI: bridge 1 resource 2 moved to 9fe00000..9fefffff In the 3rd and 4th lines, the resource addresses are different for the two runs. What could be the reason? -- Carlos Mitidieri SYSGO AG - Office Ulm
