diff --git a/src/mainboard/google/kahlee/irq_tables.c b/src/mainboard/google/kahlee/irq_tables.c
deleted file mode 100644
index 802a66b718..0000000000
--- a/src/mainboard/google/kahlee/irq_tables.c
+++ /dev/null
@@ -1,86 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-#include <console/console.h>
-#include <commonlib/bsd/helpers.h>
-#include <string.h>
-#include <stdint.h>
-#include <arch/pirq_routing.h>
-
-static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn,
-			    u8 link0, u16 bitmap0, u8 link1, u16 bitmap1,
-			    u8 link2, u16 bitmap2, u8 link3, u16 bitmap3,
-			    u8 slot, u8 rfu)
-{
-	pirq_info->bus = bus;
-	pirq_info->devfn = devfn;
-	pirq_info->irq[0].link = link0;
-	pirq_info->irq[0].bitmap = bitmap0;
-	pirq_info->irq[1].link = link1;
-	pirq_info->irq[1].bitmap = bitmap1;
-	pirq_info->irq[2].link = link2;
-	pirq_info->irq[2].bitmap = bitmap2;
-	pirq_info->irq[3].link = link3;
-	pirq_info->irq[3].bitmap = bitmap3;
-	pirq_info->slot = slot;
-	pirq_info->rfu = rfu;
-}
-
-unsigned long write_pirq_routing_table(unsigned long addr)
-{
-	struct irq_routing_table *pirq;
-	struct irq_info *pirq_info;
-	u32 slot_num;
-	u8 *v;
-
-	u8 sum = 0;
-	int i;
-
-	/* Align the table to be 16 byte aligned. */
-	addr = ALIGN_UP(addr, 16);
-
-	/* This table must be between 0xf0000 & 0x100000 */
-	printk(BIOS_INFO, "Writing IRQ routing tables to 0x%lx...", addr);
-
-	pirq = (void *)(addr);
-	v = (u8 *) (addr);
-
-	pirq->signature = PIRQ_SIGNATURE;
-	pirq->version = PIRQ_VERSION;
-
-	pirq->rtr_bus = 0;
-	pirq->rtr_devfn = PCI_DEVFN(0x14, 4);
-
-	pirq->exclusive_irqs = 0;
-
-	pirq->rtr_vendor = 0x1002;
-	pirq->rtr_device = 0x4384;
-
-	pirq->miniport_data = 0;
-
-	memset(pirq->rfu, 0, sizeof(pirq->rfu));
-
-	pirq_info = (void *)(&pirq->checksum + 1);
-	slot_num = 0;
-
-	/* pci bridge */
-	write_pirq_info(pirq_info, 0, PCI_DEVFN(0x14, 4),
-			0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0,
-			0);
-	pirq_info++;
-
-	slot_num++;
-
-	pirq->size = 32 + 16 * slot_num;
-
-	for (i = 0; i < pirq->size; i++)
-		sum += v[i];
-
-	sum = pirq->checksum - sum;
-
-	if (sum != pirq->checksum)
-		pirq->checksum = sum;
-
-	printk(BIOS_INFO, "%s done.\n", __func__);
-
-	return (unsigned long)pirq_info;
-}