1 files changed, 84 insertions, 0 deletions
diff --git a/arch/arm/mach-ixp4xx/ixdp425-pci.c b/arch/arm/mach-ixp4xx/ixdp425-pci.c
new file mode 100644
index 0000000000000..c2ab9ebb5980c
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/ixdp425-pci.c
@@ -0,0 +1,84 @@
+/*
+ * arch/arm/mach-ixp4xx/ixdp425-pci.c 
+ *
+ * IXDP425 board-level PCI initialization
+ *
+ * Copyright (C) 2002 Intel Corporation.
+ * Copyright (C) 2003-2004 MontaVista Software, Inc.
+ *
+ * Maintainer: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * 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/config.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+
+#include <asm/mach/pci.h>
+#include <asm/irq.h>
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+
+void __init ixdp425_pci_preinit(void)
+{
+	gpio_line_config(IXDP425_PCI_INTA_PIN,
+				IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
+	gpio_line_config(IXDP425_PCI_INTB_PIN, 
+				IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
+	gpio_line_config(IXDP425_PCI_INTC_PIN, 
+				IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
+	gpio_line_config(IXDP425_PCI_INTD_PIN, 
+				IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
+
+	gpio_line_isr_clear(IXDP425_PCI_INTA_PIN);
+	gpio_line_isr_clear(IXDP425_PCI_INTB_PIN);
+	gpio_line_isr_clear(IXDP425_PCI_INTC_PIN);
+	gpio_line_isr_clear(IXDP425_PCI_INTD_PIN);
+
+	ixp4xx_pci_preinit();
+}
+
+static int __init ixdp425_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+	static int pci_irq_table[IXDP425_PCI_IRQ_LINES] = {
+		IRQ_IXDP425_PCI_INTA,
+		IRQ_IXDP425_PCI_INTB,
+		IRQ_IXDP425_PCI_INTC,
+		IRQ_IXDP425_PCI_INTD
+	};
+
+	int irq = -1;
+
+	if (slot >= 1 && slot <= IXDP425_PCI_MAX_DEV && 
+		pin >= 1 && pin <= IXDP425_PCI_IRQ_LINES) {
+		irq = pci_irq_table[(slot + pin - 2) % 4];
+	}
+
+	return irq;
+}
+
+struct hw_pci ixdp425_pci __initdata = {
+	.nr_controllers = 1,
+	.preinit	= ixdp425_pci_preinit,
+	.swizzle	= pci_std_swizzle,
+	.setup		= ixp4xx_setup,
+	.scan		= ixp4xx_scan_bus,
+	.map_irq	= ixdp425_map_irq,
+};
+
+int __init ixdp425_pci_init(void)
+{
+	if (machine_is_ixdp425() || machine_is_ixcdp1100() ||
+			machine_is_avila() || machine_is_ixdp465())
+		pci_common_init(&ixdp425_pci);
+	return 0;
+}
+
+subsys_initcall(ixdp425_pci_init);
+