Thank you very much for your input. I have read the previous post but it is not very useful to me. Because I am not using u-boot as my bootloader, since u-boot does not support EP405 board. I am using the Planet Core from Embedded Planet which does not do any initialization on the PCI.
Does anyone have any other idea? Thanks in advance Shih-Ying Chou ----- Original Message ----- From: "Jacky Lam" <[EMAIL PROTECTED]> To: <linuxppc-embedded at lists.linuxppc.org> Sent: Friday, October 17, 2003 1:56 AM Subject: Re: Problem with EP405's PCI > > Please see my previous post and the reply from xzuo at vinesystech.com . > Hope it can help. > > Jacky > ----- Original Message ----- > From: "Shih-Ying Chou" <sschou at mtu.edu> > To: <linuxppc-embedded at lists.linuxppc.org> > Sent: Friday, October 17, 2003 12:58 PM > Subject: Problem with EP405's PCI > > > > > > Hi All, > > Have anyone successfully made the EP405's PCI (through PC/104 plus) > > work? If anyone does, please help me, I have struggle with it for over a > > month now. > > Right now I am using the linuxppc_2_4_devel kernel, and I can get the > > EP405 to boot successfully. But I can get the PCI interface to work > right. > > When booting up, the kernel can recognize the card weither USB or Sound > > card, but it can seem to assign the right irq to the card. Because USB > card > > always complain about no IRQ assign and ask to check BIOS. > > I have look at the ep405.c and ppc405_pci.c and ppc4xx_pic.c files, > but > > I cannot find out what is wrong. I know that I need to modify the > > ppc405_devtable [] in the ep405.c file. I also check the registers such as > > DCRN_UIC_PR, DCRN_UIC_TR, and DCRN_UIC_SR and all the value seems to be > > correct, except DCRN_UIC_PR. In the ep405.c DCRN_UIC_PR is set to be > > 0xffffff80 which makes the PCI interrupt to be high, so as the User manual > > stated. But isn't PCI's interrupt should be active low? > > > > Any pointer will be helpful, thank you in advance! > > > > Shih-Ying Chou > > > > > > > ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
