From mboxrd@z Thu Jan 1 00:00:00 1970 From: robinpv Date: Tue, 11 Jul 2006 10:29:51 +0900 Subject: [U-Boot-Users] u-boot crashing while searching PCI device Message-ID: <44B2FF0F.4080507@aiware.co.jp> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi, I have a MPC5200 based board, with PCI 2250 PCI-PCI bridge and 2 RTL8110S ethernet controller on the PCI Bridge. I have set the CONFIG_PCI_PNP option. Bus Dev VID DID 00 12 104C AC23 Bridge 01 02 10EC 8169 Ethernet Chip 01 03 10EC 8169 Ethernet Chip u-boot is able to detect the Bridge controller. But when it searching for the ethernet devices before the device and function number for the ethernet chip is reached the u-boot is crashing. It is crashing when it trying to read the header type [ pci_hose_scan_bus() in pci.c ] of the device which is not present. Instead of getting data as 0xFF, u-boot is crashing. I tried the same in linux, The bridge and the ethernet device is detected and mem,mmio and io regions are allocated for the ethernet. But when i try to access ethernet registers, all the values are 0xFF. I checked the values of the PCI Bridge registers in u-boot and linux. All the registers are same but the memory and io base , limit are differnet. I guess that should not the problem. Can some point out why the u-boot is crashing when searching device?? Thanks in advance, Robin