intel: Turn `DEFAULT_RCBA` into a Kconfig symbol

Create `FIXED_RCBA_MMIO_BASE` and use it everywhere, except in cases
where a pointer cast would be necessary. Instances in Sandy Bridge MRC
code were left as-is intentionally, so as not to collide with another
cleanup patch train.

Tested with BUILD_TIMELESS=1, these boards remain identical:
- Asus P8Z77-V LX2
- Packard Bell MS2290

Change-Id: I642958fbd6f02dbf54812d6a75d6bc3087acc77a
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50036
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/northbridge/intel/haswell/acpi/hostbridge.asl b/src/northbridge/intel/haswell/acpi/hostbridge.asl
index 9a39647..50a1306 100644
--- a/src/northbridge/intel/haswell/acpi/hostbridge.asl
+++ b/src/northbridge/intel/haswell/acpi/hostbridge.asl
@@ -1,7 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
 #include "../haswell.h"
-#include <southbridge/intel/common/rcba.h>
 
 Name (_HID, EISAID ("PNP0A08"))	// PCIe
 Name (_CID, EISAID ("PNP0A03"))	// PCI
@@ -175,7 +174,7 @@
 	Name (_UID, 1)
 
 	Name (PDRS, ResourceTemplate () {
-		Memory32Fixed (ReadWrite, DEFAULT_RCBA, 0x00004000)
+		Memory32Fixed (ReadWrite, CONFIG_FIXED_RCBA_MMIO_BASE, 0x00004000)
 		Memory32Fixed (ReadWrite, DEFAULT_MCHBAR,   0x00008000)
 		Memory32Fixed (ReadWrite, DEFAULT_DMIBAR,   0x00001000)
 		Memory32Fixed (ReadWrite, DEFAULT_EPBAR,    0x00001000)
diff --git a/src/northbridge/intel/haswell/northbridge.c b/src/northbridge/intel/haswell/northbridge.c
index 8af6eb2..c2c8143 100644
--- a/src/northbridge/intel/haswell/northbridge.c
+++ b/src/northbridge/intel/haswell/northbridge.c
@@ -511,7 +511,7 @@
 	reg32 &= ~(0xffff << 16);
 	reg32 |= 1 | (2 << 16);
 	DMIBAR32(DMILE1D) = reg32;
-	DMIBAR64(DMILE1A) = (uintptr_t)DEFAULT_RCBA;
+	DMIBAR64(DMILE1A) = CONFIG_FIXED_RCBA_MMIO_BASE;
 
 	DMIBAR64(DMILE2A) = (uintptr_t)DEFAULT_EPBAR;
 	reg32 = DMIBAR32(DMILE2D);
diff --git a/src/northbridge/intel/haswell/romstage.c b/src/northbridge/intel/haswell/romstage.c
index 3227c02..f5d500b2 100644
--- a/src/northbridge/intel/haswell/romstage.c
+++ b/src/northbridge/intel/haswell/romstage.c
@@ -56,7 +56,7 @@
 		.pciexbar		= CONFIG_MMCONF_BASE_ADDRESS,
 		.smbusbar		= CONFIG_FIXED_SMBUS_IO_BASE,
 		.hpet_address		= HPET_ADDR,
-		.rcba			= (uintptr_t)DEFAULT_RCBA,
+		.rcba			= CONFIG_FIXED_RCBA_MMIO_BASE,
 		.pmbase			= DEFAULT_PMBASE,
 		.gpiobase		= DEFAULT_GPIOBASE,
 		.temp_mmio_base		= 0xfed08000,