1 files changed, 41 insertions, 0 deletions

diff --git a/arch/mips/pci/fixup-ocelot3.c b/arch/mips/pci/fixup-ocelot3.c
new file mode 100644
index 000000000000..ececc03ec620
--- /dev/null
+++ b/arch/mips/pci/fixup-ocelot3.c
@@ -0,0 +1,41 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2004 Montavista Software Inc.
+ * Author: Manish Lachwani (mlachwani@mvista.com)
+ *
+ * Looking at the schematics for the Ocelot-3 board, there are
+ * two PCI busses and each bus has two PCI slots.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <asm/mipsregs.h>
+
+/*
+ * Do platform specific device initialization at
+ * pci_enable_device() time
+ */
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+        return 0;
+}
+
+int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+        int bus = dev->bus->number;
+
+        if (bus == 0 && slot == 1)
+                return 2;       /* PCI-X A */
+        if (bus == 0 && slot == 2)
+                return 3;       /* PCI-X B */
+        if (bus == 1 && slot == 1)
+                return 4;       /* PCI A */
+        if (bus == 1 && slot == 2)
+                return 5;       /* PCI B */
+
+return 0;
+        panic("Whooops in pcibios_map_irq");
+}