On Mon, 2004-03-22 at 13:35, Ethan Benson wrote:
> * You must have 2.6.4 or newer, previous versions lack necessary
> sysfs information.
Isn't 2.6.3 enough ?
> * You must have sysfs mounted (normally on /sys, but ofpath should be
> able to detect where its mounted).
>
> * You must still have /proc/ide so if this becomes a configurable
> option like /proc/scsi you must have it enabled (/proc/scsi is also
> required for machines with SATA drives).
Note that if you are using a G5 with DART enabled (that is with more
than 2Gb of RAM), you _MUST_ apply the following patch, or access to
the /proc/scsi/sata_svw entry will break the driver:
diff -Nru a/arch/ppc64/kernel/pmac_iommu.c b/arch/ppc64/kernel/pmac_iommu.c
--- a/arch/ppc64/kernel/pmac_iommu.c Tue Mar 16 08:10:33 2004
+++ b/arch/ppc64/kernel/pmac_iommu.c Tue Mar 16 08:10:33 2004
@@ -289,8 +289,11 @@
* things simple. Setup all PCI devices to point to this table
*/
while ((dev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
- dn = PCI_GET_DN(dev);
-
+ /* We must use pci_device_to_OF_node() to make sure that
+ * we get the real "final" pointer to the device in the
+ * pci_dev sysdata and not the temporary PHB one
+ */
+ struct device_node *dn = pci_device_to_OF_node(dev);
if (dn)
dn->iommu_table = &iommu_table_pmac;
}
