1 files changed, 125 insertions, 0 deletions
diff --git a/arch/arm/mach-iop3xx/iq80332-pci.c b/arch/arm/mach-iop3xx/iq80332-pci.c
new file mode 100644
index 00000000000..b9807aa2aad
--- /dev/null
+++ b/arch/arm/mach-iop3xx/iq80332-pci.c
@@ -0,0 +1,125 @@
+/*
+ * arch/arm/mach-iop3xx/iq80332-pci.c
+ *
+ * PCI support for the Intel IQ80332 reference board
+ *
+ * Author: Dave Jiang <dave.jiang@intel.com>
+ * Copyright (C) 2004 Intel Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+
+#include <asm/hardware.h>
+#include <asm/irq.h>
+#include <asm/mach/pci.h>
+#include <asm/mach-types.h>
+
+/*
+ * The following macro is used to lookup irqs in a standard table
+ * format for those systems that do not already have PCI
+ * interrupts properly routed.  We assume 1 <= pin <= 4
+ */
+#define PCI_IRQ_TABLE_LOOKUP(minid,maxid)	\
+({ int _ctl_ = -1;				\
+   unsigned int _idsel = idsel - minid;		\
+   if (_idsel <= maxid)				\
+      _ctl_ = pci_irq_table[_idsel][pin-1];	\
+   _ctl_; })
+
+#define INTA	IRQ_IQ80332_INTA
+#define INTB	IRQ_IQ80332_INTB
+#define INTC	IRQ_IQ80332_INTC
+#define INTD	IRQ_IQ80332_INTD
+
+//#define INTE	IRQ_IQ80332_I82544
+
+static inline int __init
+iq80332_map_irq(struct pci_dev *dev, u8 idsel, u8 pin)
+{
+	static int pci_irq_table[][8] = {
+		/*
+		 * PCI IDSEL/INTPIN->INTLINE
+		 * A       B       C       D
+		 */
+		{-1,   -1,   -1,   -1},
+		{-1,   -1,   -1,   -1},
+		{-1,   -1,   -1,   -1},
+		{INTA, INTB, INTC, INTD}, /* PCI-X Slot */
+		{-1,   -1,   -1,   -1},
+		{INTC, INTC, INTC, INTC}, /* GigE  */
+		{-1,   -1,   -1,   -1},
+		{-1,   -1,   -1,   -1},
+	};
+
+	BUG_ON(pin < 1 || pin > 4);
+
+	return PCI_IRQ_TABLE_LOOKUP(1, 7);
+}
+
+static int iq80332_setup(int nr, struct pci_sys_data *sys)
+{
+	struct resource *res;
+
+	if(nr != 0)
+		return 0;
+
+	res = kmalloc(sizeof(struct resource) * 2, GFP_KERNEL);
+	if (!res)
+		panic("PCI: unable to alloc resources");
+
+	memset(res, 0, sizeof(struct resource) * 2);
+
+	res[0].start = IOP331_PCI_LOWER_IO_VA;
+	res[0].end   = IOP331_PCI_UPPER_IO_VA;
+	res[0].name  = "IQ80332 PCI I/O Space";
+	res[0].flags = IORESOURCE_IO;
+
+	res[1].start = IOP331_PCI_LOWER_MEM_PA;
+	res[1].end   = IOP331_PCI_UPPER_MEM_PA;
+	res[1].name  = "IQ80332 PCI Memory Space";
+	res[1].flags = IORESOURCE_MEM;
+
+	request_resource(&ioport_resource, &res[0]);
+	request_resource(&iomem_resource, &res[1]);
+
+	sys->mem_offset = IOP331_PCI_MEM_OFFSET;
+	sys->io_offset  = IOP331_PCI_IO_OFFSET;
+
+	sys->resource[0] = &res[0];
+	sys->resource[1] = &res[1];
+	sys->resource[2] = NULL;
+
+	return 1;
+}
+
+static void iq80332_preinit(void)
+{
+	iop331_init();
+}
+
+static struct hw_pci iq80332_pci __initdata = {
+	.swizzle	= pci_std_swizzle,
+	.nr_controllers = 1,
+	.setup		= iq80332_setup,
+	.scan		= iop331_scan_bus,
+	.preinit	= iq80332_preinit,
+	.map_irq	= iq80332_map_irq
+};
+
+static int __init iq80332_pci_init(void)
+{
+	if (machine_is_iq80332())
+		pci_common_init(&iq80332_pci);
+	return 0;
+}
+
+subsys_initcall(iq80332_pci_init);
+
+
+
+