Xiaoshan,
> Also you need to remove the #ifndef line in the function pci_hose_scan_bus() > #ifndef CONFIG_405GP /* don't skip host bridge on ppc405gp */ > /* Skip our host bridge */ > if ( dev == PCI_BDF(hose->first_busno,0,0) ) > continue; > #endif > > It causes PCIC0_CMD[MA]=0 on the bridge, so it doens't respond to request. > That's what I want. It works!!!!! Really thanks to you. Your mail will surely help many beginners on Walnut platform. Best regards, Jacky ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/