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);
+}