4 files changed, 8 insertions, 20 deletions
diff --git a/post/board/lwmon/Makefile b/post/board/lwmon/Makefile
index d38498bc47..1ac7aa511d 100644
--- a/post/board/lwmon/Makefile
+++ b/post/board/lwmon/Makefile
@@ -4,10 +4,7 @@
 #
 # SPDX-License-Identifier:	GPL-2.0+
 #
-include $(OBJTREE)/include/autoconf.mk
 
-LIB	= libpostlwmon.o
+CPPFLAGS += -I$(TOPDIR)
 
-COBJS-$(CONFIG_HAS_POST)	+= sysmon.o
-
-include $(TOPDIR)/post/rules.mk
+obj-$(CONFIG_HAS_POST)	+= sysmon.o
diff --git a/post/board/lwmon5/Makefile b/post/board/lwmon5/Makefile
index b410dbb399..d8b195289e 100644
--- a/post/board/lwmon5/Makefile
+++ b/post/board/lwmon5/Makefile
@@ -4,10 +4,7 @@
 # Developed for DENX Software Engineering GmbH
 #
 # SPDX-License-Identifier:	GPL-2.0+
-include $(OBJTREE)/include/autoconf.mk
 
-LIB	= libpostlwmon5.o
+CPPFLAGS += -I$(TOPDIR)
 
-COBJS-$(CONFIG_HAS_POST)	+= sysmon.o watchdog.o dspic.o fpga.o dsp.o gdc.o
-
-include $(TOPDIR)/post/rules.mk
+obj-$(CONFIG_HAS_POST)	+= sysmon.o watchdog.o dspic.o fpga.o dsp.o gdc.o
diff --git a/post/board/netta/Makefile b/post/board/netta/Makefile
index 2d73f55f25..cd27a5ce34 100644
--- a/post/board/netta/Makefile
+++ b/post/board/netta/Makefile
@@ -4,10 +4,7 @@
 #
 # SPDX-License-Identifier:	GPL-2.0+
 #
-include $(OBJTREE)/include/autoconf.mk
 
-LIB	= libpostnetta.o
+CPPFLAGS += -I$(TOPDIR)
 
-COBJS-$(CONFIG_HAS_POST)	+= codec.o dsp.o
-
-include $(TOPDIR)/post/rules.mk
+obj-$(CONFIG_HAS_POST)	+= codec.o dsp.o
diff --git a/post/board/pdm360ng/Makefile b/post/board/pdm360ng/Makefile
index cb03e5896d..3f748892a7 100644
--- a/post/board/pdm360ng/Makefile
+++ b/post/board/pdm360ng/Makefile
@@ -4,10 +4,7 @@
 #
 # SPDX-License-Identifier:	GPL-2.0+
 #
-include $(OBJTREE)/include/autoconf.mk
 
-LIB	= libpostpdm360ng.o
+CPPFLAGS += -I$(TOPDIR)
 
-COBJS-$(CONFIG_HAS_POST)	+= coproc_com.o
-
-include $(TOPDIR)/post/rules.mk
+obj-$(CONFIG_HAS_POST)	+= coproc_com.o