[POWERPC] Merge 32 and 64 bits pcibios_enable_device

This merge the two implementations, based on the previously
fixed up 32 bits one.  The pcibios_enable_device_hook in ppc_md
is now available for ppc64 use.  Also remove the new unused
"initial" parameter from it and fixup users.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 10 insertions, 12 deletions

diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c
index 6bbf3c881711..1e51a8ee2b7d 100644
--- a/arch/powerpc/platforms/powermac/pci.c
+++ b/arch/powerpc/platforms/powermac/pci.c
@@ -1058,8 +1058,7 @@ void __init pmac_pci_init(void)
 #endif
 }
 
-int
-pmac_pci_enable_device_hook(struct pci_dev *dev, int initial)
+int pmac_pci_enable_device_hook(struct pci_dev *dev)
 {
 	struct device_node* node;
 	int updatecfg = 0;
@@ -1101,26 +1100,25 @@ pmac_pci_enable_device_hook(struct pci_dev *dev, int initial)
 		updatecfg = 1;
 	}
 
+	/*
+	 * Fixup various header fields on 32 bits. We don't do that on
+	 * 64 bits as some of these have strange values behind the HT
+	 * bridge and we must not, for example, enable MWI or set the
+	 * cache line size on them.
+	 */
+#ifdef CONFIG_PPC32
 	if (updatecfg) {
 		u16 cmd;
 
-		/*
-		 * Make sure PCI is correctly configured
-		 *
-		 * We use old pci_bios versions of the function since, by
-		 * default, gmac is not powered up, and so will be absent
-		 * from the kernel initial PCI lookup.
-		 *
-		 * Should be replaced by 2.4 new PCI mechanisms and really
-		 * register the device.
-		 */
 		pci_read_config_word(dev, PCI_COMMAND, &cmd);
 		cmd |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER
 			| PCI_COMMAND_INVALIDATE;
 		pci_write_config_word(dev, PCI_COMMAND, cmd);
 		pci_write_config_byte(dev, PCI_LATENCY_TIMER, 16);
+
 		pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE,
 				      L1_CACHE_BYTES >> 2);
+#endif
 	}
 
 	return 0;