patch-2.4.0-test8 linux/arch/arm/mach-footbridge/cats-pci.c

• Lines: 38
• Date: Sun Sep 3 11:19:11 2000
• Orig file: v2.4.0-test7/linux/arch/arm/mach-footbridge/cats-pci.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.0-test7/linux/arch/arm/mach-footbridge/cats-pci.c linux/arch/arm/mach-footbridge/cats-pci.c
@@ -0,0 +1,37 @@
+/*
+ * linux/arch/arm/mach-footbridge/cats-pci.c
+ *
+ * PCI bios-type initialisation for PCI machines
+ *
+ * Bits taken from various places.
+ */
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+
+#include <asm/irq.h>
+#include <asm/mach/pci.h>
+
+/* cats host-specific stuff */
+static int irqmap_cats[] __initdata = { IRQ_PCI, IRQ_IN0, IRQ_IN1, IRQ_IN3 };
+
+static int __init cats_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+	if (dev->irq >= 128)
+		return dev->irq & 0x1f;
+
+	if (dev->irq >= 1 && dev->irq <= 4)
+		return irqmap_cats[dev->irq - 1];
+
+	if (dev->irq != 0)
+		printk("PCI: device %02x:%02x has unknown irq line %x\n",
+		       dev->bus->number, dev->devfn, dev->irq);
+
+	return -1;
+}
+
+struct hw_pci cats_pci __initdata = {
+	init:		dc21285_init,
+	swizzle:	no_swizzle,
+	map_irq:	cats_map_irq,
+};