Index: boot/arch/sparc64/Makefile.inc
===================================================================
--- boot/arch/sparc64/Makefile.inc	(revision 676e8336ad77d890d2dc43660cc53d5575875f79)
+++ boot/arch/sparc64/Makefile.inc	(revision 19397becd25f896f19a94f9f6867540d2c59da3d)
@@ -39,4 +39,9 @@
 EXTRA_CFLAGS = -mcpu=ultrasparc -m64 -mno-fpu -mcmodel=medlow
 
+ifeq ($(PROCESSOR), sun4v)
+RD_DRVS_ESSENTIAL += \
+	platform/sun4v \
+	char/sun4v-con
+else
 RD_DRVS_ESSENTIAL += \
 	platform/sun4u \
@@ -48,4 +53,5 @@
 RD_DRV_CFG += \
 	bus/isa
+endif
 
 SOURCES = \