diff --git a/src/soc/intel/fsp_broadwell_de/acpi/irq_helper.h b/src/soc/intel/fsp_broadwell_de/acpi/irq_helper.h
deleted file mode 100644
index 8799a9b7cc..0000000000
--- a/src/soc/intel/fsp_broadwell_de/acpi/irq_helper.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2013 Google Inc.
- *
- * 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.
- */
-
-#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"
diff --git a/src/soc/intel/fsp_broadwell_de/acpi/irqroute.asl b/src/soc/intel/fsp_broadwell_de/acpi/irqroute.asl
deleted file mode 100644
index 8a54d33797..0000000000
--- a/src/soc/intel/fsp_broadwell_de/acpi/irqroute.asl
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2007-2009 coresystems GmbH
- * Copyright (C) 2013 Google Inc.
- *
- * 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.
- */
-
-/* PCI Interrupt Routing */
-Method(_PRT)
-{
-	/*
-	 * PICM comes from _PIC, which returns the following:
-	 * 0 - PIC mode
-	 * 1 - APIC mode
-	 * 2 - SAPIC mode
-	 */
-	If (PICM) {
-		Return (Package() {
-			#undef PIC_MODE
-			#include "irq_helper.h"
-			PCI_DEV_PIRQ_ROUTES
-		})
-	} Else {
-		Return (Package() {
-			#define PIC_MODE
-			#include "irq_helper.h"
-			PCI_DEV_PIRQ_ROUTES
-		})
-	}
-}