haswell/broadwell: Replace remaining MCHBAR accessors

Tested with BUILD_TIMELESS=1, Asrock B85M Pro4 and Purism Librem 13 v1
remain identical.

Change-Id: I74b633fb0b012304b5b4bd943272ed82dcb6f7d5
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52468
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/intel/broadwell/acpi.c b/src/soc/intel/broadwell/acpi.c
index 66bc058..5d3992c 100644
--- a/src/soc/intel/broadwell/acpi.c
+++ b/src/soc/intel/broadwell/acpi.c
@@ -29,16 +29,16 @@
 static unsigned long acpi_fill_dmar(unsigned long current)
 {
 	struct device *const igfx_dev = pcidev_path_on_root(SA_DEVFN_IGD);
-	const u32 gfxvtbar = MCHBAR32(GFXVTBAR) & ~0xfff;
-	const u32 vtvc0bar = MCHBAR32(VTVC0BAR) & ~0xfff;
-	const bool gfxvten = MCHBAR32(GFXVTBAR) & 0x1;
-	const bool vtvc0en = MCHBAR32(VTVC0BAR) & 0x1;
+	const u32 gfxvtbar = mchbar_read32(GFXVTBAR) & ~0xfff;
+	const u32 vtvc0bar = mchbar_read32(VTVC0BAR) & ~0xfff;
+	const bool gfxvten = mchbar_read32(GFXVTBAR) & 0x1;
+	const bool vtvc0en = mchbar_read32(VTVC0BAR) & 0x1;
 
 	/* iGFX has to be enabled; GFXVTBAR set, enabled, in 32-bit space */
 	const bool emit_igd =
 			igfx_dev && igfx_dev->enabled &&
 			gfxvtbar && gfxvten &&
-			!MCHBAR32(GFXVTBAR + 4);
+			!mchbar_read32(GFXVTBAR + 4);
 
 	/* First, add DRHD entries */
 	if (emit_igd) {
@@ -51,7 +51,7 @@
 	}
 
 	/* VTVC0BAR has to be set, enabled, and in 32-bit space */
-	if (vtvc0bar && vtvc0en && !MCHBAR32(VTVC0BAR + 4)) {
+	if (vtvc0bar && vtvc0en && !mchbar_read32(VTVC0BAR + 4)) {
 		const unsigned long tmp = current;
 		current += acpi_create_dmar_drhd(current,
 				DRHD_INCLUDE_PCI_ALL, 0, vtvc0bar);