From bafe55c36fec131c4b2512ba908aa0fbeb3f5ae3 Mon Sep 17 00:00:00 2001
From: Arthur Heymans <arthur@aheymans.xyz>
Date: Mon, 19 Jun 2023 10:48:13 +0200
Subject: [PATCH] soc/amd/common/iommu: Use preprocessor values for IOMMU base

Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: I85f58565bf1f955f704e223d538d0b374bc6fbda
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75915
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
---
 src/soc/amd/common/block/iommu/iommu.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/soc/amd/common/block/iommu/iommu.c b/src/soc/amd/common/block/iommu/iommu.c
index 52861f2af7..ad1d774baf 100644
--- a/src/soc/amd/common/block/iommu/iommu.c
+++ b/src/soc/amd/common/block/iommu/iommu.c
@@ -4,6 +4,9 @@
 #include <device/pci.h>
 #include <lib.h>
 
+#define IOMMU_CAP_BASE_LO 0x44
+#define IOMMU_CAP_BASE_HI 0x48
+
 static void iommu_read_resources(struct device *dev)
 {
 	struct resource *res;
@@ -12,7 +15,7 @@ static void iommu_read_resources(struct device *dev)
 	pci_dev_read_resources(dev);
 
 	/* IOMMU MMIO registers */
-	res = new_resource(dev, 0x44);
+	res = new_resource(dev, IOMMU_CAP_BASE_LO);
 	res->size = 512 * KiB;
 	res->align = log2(res->size);
 	res->gran = log2(res->size);