1 files changed, 87 insertions, 0 deletions
diff --git a/packages/linux/nas100d-kernel/2.6.15/nas100d-pci.c b/packages/linux/nas100d-kernel/2.6.15/nas100d-pci.c
new file mode 100644
index 0000000000..1f934068e9
--- /dev/null
+++ b/packages/linux/nas100d-kernel/2.6.15/nas100d-pci.c
@@ -0,0 +1,87 @@
+/*
+ * arch/arm/mach-ixp4xx/nas100d-pci.c
+ *
+ * NAS 100d board-level PCI initialization
+ *
+ * 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/config.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+
+#include <asm/mach/pci.h>
+#include <asm/mach-types.h>
+
+void __init nas100d_pci_preinit(void)
+{
+	set_irq_type(IRQ_NAS100D_PCI_INTA, IRQT_LOW);
+	set_irq_type(IRQ_NAS100D_PCI_INTB, IRQT_LOW);
+	set_irq_type(IRQ_NAS100D_PCI_INTC, IRQT_LOW);
+	set_irq_type(IRQ_NAS100D_PCI_INTD, IRQT_LOW);
+	set_irq_type(IRQ_NAS100D_PCI_INTE, IRQT_LOW);
+
+	gpio_line_isr_clear(NAS100D_PCI_INTA_PIN);
+	gpio_line_isr_clear(NAS100D_PCI_INTB_PIN);
+	gpio_line_isr_clear(NAS100D_PCI_INTC_PIN);
+	gpio_line_isr_clear(NAS100D_PCI_INTD_PIN);
+	gpio_line_isr_clear(NAS100D_PCI_INTE_PIN);
+
+	ixp4xx_pci_preinit();
+}
+
+static int __init nas100d_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+	if (slot < 1 || slot > 3 || pin < 1 || pin > 3)
+		return -1;
+
+	switch (slot)
+	{
+	case 1:
+		if (pin == 1)
+			return IRQ_NAS100D_PCI_INTA;
+		break;
+	case 2:
+		if (pin == 1)
+			return IRQ_NAS100D_PCI_INTB;
+		break;
+	case 3:
+		if (pin == 1)
+			return IRQ_NAS100D_PCI_INTC;
+		if (pin == 2)
+			return IRQ_NAS100D_PCI_INTD;
+		if (pin == 3)
+			return IRQ_NAS100D_PCI_INTE;
+		break;
+	}
+
+	return -1;
+}
+
+struct hw_pci __initdata nas100d_pci = {
+	.nr_controllers = 1,
+	.preinit	= nas100d_pci_preinit,
+	.swizzle	= pci_std_swizzle,
+	.setup		= ixp4xx_setup,
+	.scan		= ixp4xx_scan_bus,
+	.map_irq	= nas100d_map_irq,
+};
+
+int __init nas100d_pci_init(void)
+{
+	if (machine_is_nas100d())
+		pci_common_init(&nas100d_pci);
+
+	return 0;
+}
+
+subsys_initcall(nas100d_pci_init);