sb/nvidia/mcp55: Link early_ctrl.c

Change-Id: I3a55c2e8077fdb10768df287f38efcd5e2e64bdf
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/19365
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

src/southbridge/nvidia/mcp55/Makefile.inc

@@ -20,6 +20,7 @@ ramstage-y += reset.c
 romstage-$(CONFIG_USBDEBUG_IN_ROMSTAGE) += enable_usbdebug.c
 ramstage-$(CONFIG_USBDEBUG) += enable_usbdebug.c
 romstage-y += early_smbus.c
+romstage-y += early_ctrl.c
 
 ifeq ($(CONFIG_MCP55_USE_AZA),y)
 ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/hda_verb.c

src/southbridge/nvidia/mcp55/early_ctrl.c

@@ -15,7 +15,14 @@
  * GNU General Public License for more details.
  */
 
+#include <arch/io.h>
+#include <console/console.h>
 #include <reset.h>
+#if IS_ENABLED(CONFIG_NORTHBRIDGE_AMD_AMDK8)
+#include <northbridge/amd/amdk8/amdk8.h>
+#else /* CONFIG_NORTHBRIDGE_AMD_AMDFAM10 */
+#include <northbridge/amd/amdfam10/amdfam10.h>
+#endif
 #include "mcp55.h"
 
 void soft_reset(void)