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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2007-12-20 14:54:46 +1100
committerPaul Mackerras <paulus@samba.org>2007-12-20 16:18:07 +1100
commitfc3fb71c3e1850a6a1099dd1cb7bcd7e69ac7b73 (patch)
treec9885bd47237c6e09b42a3c42496b5865c0caa02 /arch/powerpc/platforms/powermac
parentb9baa20b0a50947f2e86d7775c9dba87c0d946ef (diff)
[POWERPC] pci32: Add flags modifying the PCI code behaviour
This adds to the 32 bits PCI code some flags, replacing the old pci_assign_all_busses global, that allow us to control various aspects of the PCI probing, such as whether to re-assign all resources or not, or to not try to assign anything at all. This also adds the flag x86 already has to avoid ISA alignment on bridges that don't have ISA forwarding enabled (no legacy devices on the top level bus) and sets it for PowerMacs. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms/powermac')
-rw-r--r--arch/powerpc/platforms/powermac/pci.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c
index 589c613bcd3..a2e9b36f61e 100644
--- a/arch/powerpc/platforms/powermac/pci.c
+++ b/arch/powerpc/platforms/powermac/pci.c
@@ -725,7 +725,7 @@ static void __init setup_bandit(struct pci_controller *hose,
static int __init setup_uninorth(struct pci_controller *hose,
struct resource *addr)
{
- pci_assign_all_buses = 1;
+ ppc_pci_flags |= PPC_PCI_REASSIGN_ALL_BUS;
has_uninorth = 1;
hose->ops = &macrisc_pci_ops;
hose->cfg_addr = ioremap(addr->start + 0x800000, 0x1000);
@@ -994,6 +994,9 @@ void __init pmac_pci_init(void)
struct device_node *np, *root;
struct device_node *ht = NULL;
+#ifdef CONFIG_PPC32
+ ppc_pci_flags = PPC_PCI_CAN_SKIP_ISA_ALIGN;
+#endif
root = of_find_node_by_path("/");
if (root == NULL) {
printk(KERN_CRIT "pmac_pci_init: can't find root "
@@ -1051,7 +1054,7 @@ void __init pmac_pci_init(void)
* some offset between bus number and domains for now when we
* assign all busses should help for now
*/
- if (pci_assign_all_buses)
+ if (ppc_pci_flags & PPC_PCI_REASSIGN_ALL_BUS)
pcibios_assign_bus_offset = 0x10;
#endif
}