On Wed, Sep 13, 2000 at 05:29:58PM -0700, Andre Hedrick wrote:
> 
> Okay who can teach me how to force hooks and ram this down the PPC
> 
> pci_write_config_word(dev, PCI_COMMAND, 0x05);
> 
> I have all the address registered.
> My new PPC G3 (7600/132) toy is not allowing IO's on PCI cards to come
> alive.  Thus I get some of the most beuatiful lockups ever.
> I suspect that this needs to be handled down in the arch.
> 
> ./linux/arch/ppc/kernel/{chrp_pci.c|mbx_pci.c|pmac_pci.c|prep_pci.c}
> 
> Basically I can not get the IO's active, regardless of BIOS on the card.
> Yes this is the old trick that used to work of making ix86 cards run in
> non ix86-pci slots.
> 
> Here is the fun part, I have a native mac/ppc Ultra-66 card that is fin
> under Mac OS, but the IO's are not enable in linux and it crash like a big
> dog also.

I'm going to bet you need to look at Michel Lanners' (did I spell that
right this time?) PCI patches.  For instance, I've always needed this
hideous patch on my 7300/200 to get a Promise Ultra66 card to work:

diff -ur merging-bk/drivers/block/ide-pci.c work-bk/drivers/block/ide-pci.c
--- merging-bk/drivers/block/ide-pci.c  Tue Apr  4 22:19:16 2000
+++ work-bk/drivers/block/ide-pci.c     Thu Mar  9 15:33:25 2000
@@ -468,6 +468,15 @@
                printk("%s: error accessing PCI regs\n", d->name);
                return;
        }
+#ifdef __powerpc__
+       if (!(pcicmd & PCI_COMMAND_IO)) {       /* is device disabled? */
+               pci_write_config_word(dev, PCI_COMMAND, pcicmd | PCI_COMMAND_IO);
+               if (pci_read_config_word(dev, PCI_COMMAND, &pcicmd)) {
+                       printk("%s: error accessing PCI regs\n", d->name);
+                       return;
+               }
+       }
+#endif
        if (!(pcicmd & PCI_COMMAND_IO)) {       /* is device disabled? */
                /*
                 * PnP BIOS was *supposed* to have set this device up for us,


Dan

/--------------------------------\  /--------------------------------\
|       Daniel Jacobowitz        |__|        SCS Class of 2002       |
|   Debian GNU/Linux Developer    __    Carnegie Mellon University   |
|         [EMAIL PROTECTED]         |  |       [EMAIL PROTECTED]      |
\--------------------------------/  \--------------------------------/
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