--- arch/powerpc/boot/Makefile

+++ arch/powerpc/boot/Makefile

@@ -364,7 +364,7 @@ INSTALL := install

extra-installed := $(patsubst $(obj)/%, $(DESTDIR)$(WRAPPER_OBJDIR)/%, $(extra-y))

hostprogs-installed := $(patsubst %, $(DESTDIR)$(WRAPPER_BINDIR)/%, $(hostprogs-y))

wrapper-installed := $(DESTDIR)$(WRAPPER_BINDIR)/wrapper

-dts-installed := $(patsubst $(obj)/dts/%, $(DESTDIR)$(WRAPPER_DTSDIR)/%, $(wildcard $(obj)/dts/*.dts))

+dts-installed := $(patsubst $(dtstree)/%, $(DESTDIR)$(WRAPPER_DTSDIR)/%, $(wildcard $(dtstree)/*.dts))

all-installed := $(extra-installed) $(hostprogs-installed) $(wrapper-installed) $(dts-installed)