1 files changed, 61 insertions, 0 deletions
diff --git a/src/southbridge/intel/fsp_rangeley/acpi/irq_helper.h b/src/southbridge/intel/fsp_rangeley/acpi/irq_helper.h
new file mode 100644
index 0000000000..bf1f6c0bf2
--- /dev/null
+++ b/src/southbridge/intel/fsp_rangeley/acpi/irq_helper.h
@@ -0,0 +1,61 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 Google Inc.
+ * Copyright (C) 2014 Sage Electronics Engineering, LLC.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+/*
+ * This file intentionally gets included multiple times, to set pic and apic
+ * modes, so should not have guard statements added.
+ */
+
+/*
+ * This file will use irqroute.asl and mainboard/irqroute.h
+ * to generate the ACPI IRQ routing for the mainboard being compiled.
+ * This method uses #defines in irqroute.h along with the macros contained
+ * in this file to generate an IRQ routing for each PCI device in the system.
+ */
+#undef PCI_DEV_PIRQ_ROUTES
+#undef ACPI_DEV_IRQ
+#undef PCI_DEV_PIRQ_ROUTE
+#undef PIRQ_PIC_ROUTES
+#undef PIRQ_PIC
+#undef IRQROUTE_H
+
+#if defined(PIC_MODE)
+
+#define ACPI_DEV_IRQ(dev_, pin_, pin_name_) \
+	Package() { ## dev_ ## ffff, pin_, \_SB.PCI0.LPCB.LNK ## pin_name_, 0 }
+
+#else /* defined(PIC_MODE) */
+
+#define ACPI_DEV_IRQ(dev_, pin_, pin_name_) \
+	Package() { ## dev_ ## ffff, pin_, 0, PIRQ ## pin_name_ ## _APIC_IRQ }
+
+#endif
+
+#define PCI_DEV_PIRQ_ROUTE(dev_, a_, b_, c_, d_) \
+	ACPI_DEV_IRQ(dev_, 0, a_), \
+	ACPI_DEV_IRQ(dev_, 1, b_), \
+	ACPI_DEV_IRQ(dev_, 2, c_), \
+	ACPI_DEV_IRQ(dev_, 3, d_)
+
+/* Empty PIRQ_PIC definition. */
+#define PIRQ_PIC(pirq_, pic_irq_)
+
+/* Include the mainboard irq route definition */
+#include "irqroute.h"