1 files changed, 62 insertions, 0 deletions
diff --git a/arch/arm/mach-ixp4xx/coyote-pci.c b/arch/arm/mach-ixp4xx/coyote-pci.c
new file mode 100644
index 000000000..c250b59e8
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/coyote-pci.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * arch/arm/mach-ixp4xx/coyote-pci.c
+ *
+ * PCI setup routines for ADI Engineering Coyote platform
+ *
+ * Copyright (C) 2002 Jungo Software Technologies.
+ * Copyright (C) 2003 MontaVista Softwrae, Inc.
+ *
+ * Maintainer: Deepak Saxena <dsaxena@mvista.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+#include <asm/irq.h>
+#include <asm/mach/pci.h>
+
+#include "irqs.h"
+
+#define SLOT0_DEVID	14
+#define SLOT1_DEVID	15
+
+/* PCI controller GPIO to IRQ pin mappings */
+#define SLOT0_INTA	6
+#define SLOT1_INTA	11
+
+void __init coyote_pci_preinit(void)
+{
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(SLOT0_INTA), IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(IXP4XX_GPIO_IRQ(SLOT1_INTA), IRQ_TYPE_LEVEL_LOW);
+	ixp4xx_pci_preinit();
+}
+
+static int __init coyote_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	if (slot == SLOT0_DEVID)
+		return IXP4XX_GPIO_IRQ(SLOT0_INTA);
+	else if (slot == SLOT1_DEVID)
+		return IXP4XX_GPIO_IRQ(SLOT1_INTA);
+	else return -1;
+}
+
+struct hw_pci coyote_pci __initdata = {
+	.nr_controllers = 1,
+	.ops		= &ixp4xx_ops,
+	.preinit =        coyote_pci_preinit,
+	.setup =          ixp4xx_setup,
+	.map_irq =        coyote_map_irq,
+};
+
+int __init coyote_pci_init(void)
+{
+	if (machine_is_adi_coyote())
+		pci_common_init(&coyote_pci);
+	return 0;
+}
+
+subsys_initcall(coyote_pci_init);