1 files changed, 61 insertions, 0 deletions

diff --git a/arch/sh/drivers/pci/fixups-sh03.c b/arch/sh/drivers/pci/fixups-sh03.c
new file mode 100644
index 000000000000..57ac26c2171f
--- /dev/null
+++ b/arch/sh/drivers/pci/fixups-sh03.c
@@ -0,0 +1,61 @@
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+
+/*
+ *      IRQ functions
+ */
+
+int __init pcibios_map_platform_irq(u8 slot, u8 pin, struct pci_dev *dev)
+{
+        int irq;
+
+        if (dev->bus->number == 0) {
+                switch (slot) {
+                case 4: return 5;       /* eth0       */
+                case 8: return 5;       /* eth1       */
+                case 6: return 2;       /* PCI bridge */
+                default:
+                        printk("PCI: Bad IRQ mapping request for slot %d\n", slot);
+                        return 2;
+                }
+        } else {
+                switch (pin) {
+                case 0:   irq =  2; break;
+                case 1:   irq =  2; break;
+                case 2:   irq =  2; break;
+                case 3:   irq =  2; break;
+                case 4:   irq =  2; break;
+                default:  irq = -1; break;
+                }
+        }
+        return irq;
+}
+
+static u8 __init sh03_no_swizzle(struct pci_dev *dev, u8 *pin)
+{
+        /* no swizzling */
+        return PCI_SLOT(dev->devfn);
+}
+
+static int sh03_pci_lookup_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+        int irq = -1;
+
+        /* now lookup the actual IRQ on a platform specific basis (pci-'platform'.c) */
+        irq = pcibios_map_platform_irq(slot, pin, dev);
+        if( irq < 0 ) {
+                pr_debug("PCI: Error mapping IRQ on device %s\n", pci_name(dev));
+                return irq;
+        }
+
+        pr_debug("Setting IRQ for slot %s to %d\n", pci_name(dev), irq);
+
+        return irq;
+}
+
+void __init pcibios_fixup_irqs(void)
+{
+        pci_fixup_irqs(sh03_no_swizzle, sh03_pci_lookup_irq);
+}