Hi Kumar, I try to summarize the problem in the hope to fix it for good: Linux Kernel (2.6.34-6) did not detect one of the two pci devices that instead u-boot could "see". This was worakounded by defining CONFIG_PCI_NOSCAN in u-boot as per [1]
To find out the root cause of the problem, you've suggested to dump all the controller registers between the case that works and doesn't and see what changes. Te following registers have different values in the faulty situation (u-boot compiled without CONFIG_PCI_NOSCAN definition) vs the working case (u-boot compiled with CONFIG_PCI_NOSCAN defined): 0x9000: 0x80000048 (not working) -> 0x8003007c (ok) 0x9004: 0x00000000 (not working) -> 0x08000000 (ok) The register values were obtained with the devmem utility. Thanx very much for your help, Davide [1] http://permalink.gmane.org/gmane.linux.ports.ppc.embedded/20140 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
