1 files changed, 8 insertions, 1 deletions

diff --git a/arch/x86/kernel/acpi/Makefile b/arch/x86/kernel/acpi/Makefile
index 19d3d6e9d09b..7335959b6aff 100644
--- a/arch/x86/kernel/acpi/Makefile
+++ b/arch/x86/kernel/acpi/Makefile
@@ -1,7 +1,14 @@
+subdir-                         := realmode
+
 obj-$(CONFIG_ACPI)              += boot.o
-obj-$(CONFIG_ACPI_SLEEP)        += sleep.o wakeup_$(BITS).o
+obj-$(CONFIG_ACPI_SLEEP)        += sleep.o wakeup_rm.o wakeup_$(BITS).o
 
 ifneq ($(CONFIG_ACPI_PROCESSOR),)
 obj-y                           += cstate.o processor.o
 endif
 
+$(obj)/wakeup_rm.o:    $(obj)/realmode/wakeup.bin
+
+$(obj)/realmode/wakeup.bin: FORCE
+        $(Q)$(MAKE) $(build)=$(obj)/realmode $@
+