From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <013101c3e03d$19623800$7101a8c0@JMANBY> From: "John Manby" To: Subject: PCI resource conflicts Date: Wed, 21 Jan 2004 10:39:11 -0600 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: Hello, I looked into the archives and found where several others have asked this question, but I couldn't find where anyone had received a sufficient solution. I am running a Debian 2.4 kernel with RTAI extensions on an IBM 405GP PowerPC. Initially, U-boot was failing to locate PCI devices behind bridges other than the first bridge it finds. I believe that this is not an issue at this time and that the Linux kernel reconfigures the PCI bus on boot up. Now when booting Linux, I receive these messages when I plug multiple PCI cards into the chassis. PCI: Probing PCI hardware Scanning bus 00 Found 00:80 [1011/0024] 000604 01 Found 00:98 [1011/0024] 000604 01 Fixups for bus 00 Scanning behind PCI bridge 00:10.0, config 010100, pass 0 Scanning bus 01 Found 01:00 [8086/b555] 000b40 00 Fixups for bus 01 Bus scan for 01 returning with max=01 Scanning behind PCI bridge 00:13.0, config 020200, pass 0 Scanning bus 02 Found 02:00 [104c/a106] 000000 00 Fixups for bus 02 Bus scan for 02 returning with max=02 Scanning behind PCI bridge 00:10.0, config 010100, pass 1 Scanning behind PCI bridge 00:13.0, config 020200, pass 1 Bus scan for 00 returning with max=02 PCI: Cannot allocate resource region 2 of PCI bridge 1 PCI: bridge 1 resource 2 moved to bff00000..bfffffff PCI: Cannot allocate resource region 1 of PCI bridge 2 PCI: bridge 2 resource 1 moved to bf000000..bfefffff PCI: Cannot allocate resource region 2 of PCI bridge 2 PCI: bridge 2 resource 2 moved to bef00000..beffffff PCI: Cannot allocate resource region 0 of device 01:00.0 PCI: Cannot allocate resource region 1 of device 01:00.0 PCI: Cannot allocate resource region 0 of device 02:00.0 PCI: Cannot allocate resource region 1 of device 02:00.0 PCI: Failed to allocate resource 0(0-fff) for 01:00.0 PCI: moved device 01:00.0 resource 1 (101) to f000 PCI: Failed to allocate resource 3(c0000000-bfffffff) for 01:00.0 PCI: Failed to allocate resource 4(0-7fffff) for 01:00.0 Can anybody explain what is causing this or point me in the right direction? I'm currently trying to follow through the PCI code, but I am new to Linux and a hierachical PCI design so it is slow going. Thanks!! -John ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/