1 files changed, 74 insertions, 0 deletions

diff --git a/arch/arm/mach-ixp4xx/dsmg600-pci.c b/arch/arm/mach-ixp4xx/dsmg600-pci.c
new file mode 100644
index 000000000000..9db7e1f42011
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/dsmg600-pci.c
@@ -0,0 +1,74 @@
+/*
+ * DSM-G600 board-level PCI initialization
+ *
+ * Copyright (C) 2006 Tower Technologies
+ * Author: Alessandro Zummo <a.zummo@towertech.it>
+ *
+ * based on ixdp425-pci.c:
+ *      Copyright (C) 2002 Intel Corporation.
+ *      Copyright (C) 2003-2004 MontaVista Software, Inc.
+ *
+ * Maintainer: http://www.nslu2-linux.org/
+ *
+ * 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/pci.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+
+#include <asm/mach/pci.h>
+#include <asm/mach-types.h>
+
+void __init dsmg600_pci_preinit(void)
+{
+        set_irq_type(IRQ_DSMG600_PCI_INTA, IRQT_LOW);
+        set_irq_type(IRQ_DSMG600_PCI_INTB, IRQT_LOW);
+        set_irq_type(IRQ_DSMG600_PCI_INTC, IRQT_LOW);
+        set_irq_type(IRQ_DSMG600_PCI_INTD, IRQT_LOW);
+        set_irq_type(IRQ_DSMG600_PCI_INTE, IRQT_LOW);
+        set_irq_type(IRQ_DSMG600_PCI_INTF, IRQT_LOW);
+
+        ixp4xx_pci_preinit();
+}
+
+static int __init dsmg600_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+        static int pci_irq_table[DSMG600_PCI_MAX_DEV][DSMG600_PCI_IRQ_LINES] =
+        {
+                { IRQ_DSMG600_PCI_INTE, -1, -1 },
+                { IRQ_DSMG600_PCI_INTA, -1, -1 },
+                { IRQ_DSMG600_PCI_INTB, IRQ_DSMG600_PCI_INTC, IRQ_DSMG600_PCI_INTD },
+                { IRQ_DSMG600_PCI_INTF, -1, -1 },
+        };
+
+        int irq = -1;
+
+        if (slot >= 1 && slot <= DSMG600_PCI_MAX_DEV &&
+                pin >= 1 && pin <= DSMG600_PCI_IRQ_LINES)
+                irq = pci_irq_table[slot-1][pin-1];
+
+        return irq;
+}
+
+struct hw_pci __initdata dsmg600_pci = {
+        .nr_controllers = 1,
+        .preinit        = dsmg600_pci_preinit,
+        .swizzle        = pci_std_swizzle,
+        .setup          = ixp4xx_setup,
+        .scan           = ixp4xx_scan_bus,
+        .map_irq        = dsmg600_map_irq,
+};
+
+int __init dsmg600_pci_init(void)
+{
+        if (machine_is_dsmg600())
+                pci_common_init(&dsmg600_pci);
+
+        return 0;
+}
+
+subsys_initcall(dsmg600_pci_init);