1 files changed, 48 insertions, 0 deletions
diff --git a/arch/arm/mach-footbridge/ebsa285-pci.c b/arch/arm/mach-footbridge/ebsa285-pci.c
new file mode 100644
index 000000000..c3f280d08
--- /dev/null
+++ b/arch/arm/mach-footbridge/ebsa285-pci.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * linux/arch/arm/mach-footbridge/ebsa285-pci.c
+ *
+ * PCI bios-type initialisation for PCI machines
+ *
+ * Bits taken from various places.
+ */
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+
+#include <asm/irq.h>
+#include <asm/mach/pci.h>
+#include <asm/mach-types.h>
+
+static int irqmap_ebsa285[] = { IRQ_IN3, IRQ_IN1, IRQ_IN0, IRQ_PCI };
+
+static int ebsa285_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	if (dev->vendor == PCI_VENDOR_ID_CONTAQ &&
+	    dev->device == PCI_DEVICE_ID_CONTAQ_82C693)
+		switch (PCI_FUNC(dev->devfn)) {
+		case 1:	return 14;
+		case 2:	return 15;
+		case 3:	return 12;
+		}
+
+	return irqmap_ebsa285[(slot + pin) & 3];
+}
+
+static struct hw_pci ebsa285_pci __initdata = {
+	.map_irq		= ebsa285_map_irq,
+	.nr_controllers		= 1,
+	.ops			= &dc21285_ops,
+	.setup			= dc21285_setup,
+	.preinit		= dc21285_preinit,
+	.postinit		= dc21285_postinit,
+};
+
+static int __init ebsa285_init_pci(void)
+{
+	if (machine_is_ebsa285())
+		pci_common_init(&ebsa285_pci);
+	return 0;
+}
+
+subsys_initcall(ebsa285_init_pci);