diff --git a/board/gdsys/405ep/Makefile b/board/gdsys/405ep/Makefile
index 81d23c5..857ec04 100644
--- a/board/gdsys/405ep/Makefile
+++ b/board/gdsys/405ep/Makefile
@@ -5,30 +5,8 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
-LIB	= $(obj)lib$(BOARD).o
-
-COBJS-$(CONFIG_NEO) += neo.o
-COBJS-$(CONFIG_IO) += io.o
-COBJS-$(CONFIG_IOCON) += iocon.o
-COBJS-$(CONFIG_DLVISION_10G) += dlvision-10g.o
-
-COBJS   := $(BOARD).o $(COBJS-y)
-SOBJS   =
-
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(COBJS))
-SOBJS	:= $(addprefix $(obj),$(SOBJS))
-
-$(LIB):	$(OBJS) $(SOBJS)
-	$(call cmd_link_o_target, $(OBJS) $(SOBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+obj-y := 405ep.o
+obj-$(CONFIG_NEO) += neo.o
+obj-$(CONFIG_IO) += io.o
+obj-$(CONFIG_IOCON) += iocon.o
+obj-$(CONFIG_DLVISION_10G) += dlvision-10g.o
diff --git a/board/gdsys/405ex/Makefile b/board/gdsys/405ex/Makefile
index 9846823..a668460 100644
--- a/board/gdsys/405ex/Makefile
+++ b/board/gdsys/405ex/Makefile
@@ -5,33 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
-LIB	= $(obj)lib$(BOARD).o
-
-COBJS-$(CONFIG_IO64) += io64.o
-
-COBJS-$(CONFIG_CMD_CHIP_CONFIG) += chip_config.o
-
-COBJS   := $(BOARD).o $(COBJS-y)
-
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
-
-$(LIB):	$(obj).depend $(OBJS)
-	$(call cmd_link_o_target, $(OBJS))
-
-clean:
-	rm -f $(OBJS)
-
-distclean:	clean
-	rm -f $(LIB) core *.bak $(obj).depend
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+obj-y := 405ex.o
+obj-$(CONFIG_IO64) += io64.o
+obj-$(CONFIG_CMD_CHIP_CONFIG) += chip_config.o
diff --git a/board/gdsys/common/Makefile b/board/gdsys/common/Makefile
index 216ad96..fb841e0 100644
--- a/board/gdsys/common/Makefile
+++ b/board/gdsys/common/Makefile
@@ -5,37 +5,9 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
-ifneq ($(OBJTREE),$(SRCTREE))
-$(shell mkdir -p $(obj)board/$(VENDOR)/common)
-endif
-
-LIB	= $(obj)lib$(VENDOR).o
-
-COBJS-$(CONFIG_SYS_FPGA_COMMON) += fpga.o
-
-COBJS-$(CONFIG_IO) += miiphybb.o
-COBJS-$(CONFIG_IO64) += miiphybb.o
-COBJS-$(CONFIG_IOCON) += osd.o mclink.o
-COBJS-$(CONFIG_DLVISION_10G) += osd.o
-COBJS-$(CONFIG_CONTROLCENTERD) += dp501.o
-
-COBJS   := $(COBJS-y)
-SOBJS   =
-
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(COBJS))
-SOBJS	:= $(addprefix $(obj),$(SOBJS))
-
-$(LIB):	$(OBJS) $(SOBJS)
-	$(call cmd_link_o_target, $(OBJS) $(SOBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+obj-$(CONFIG_SYS_FPGA_COMMON) += fpga.o
+obj-$(CONFIG_IO) += miiphybb.o
+obj-$(CONFIG_IO64) += miiphybb.o
+obj-$(CONFIG_IOCON) += osd.o mclink.o
+obj-$(CONFIG_DLVISION_10G) += osd.o
+obj-$(CONFIG_CONTROLCENTERD) += dp501.o
diff --git a/board/gdsys/dlvision/Makefile b/board/gdsys/dlvision/Makefile
index 126365b..755eb4c 100644
--- a/board/gdsys/dlvision/Makefile
+++ b/board/gdsys/dlvision/Makefile
@@ -5,25 +5,4 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
-LIB	= $(obj)lib$(BOARD).o
-
-COBJS	= $(BOARD).o
-SOBJS   =
-
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(COBJS))
-SOBJS	:= $(addprefix $(obj),$(SOBJS))
-
-$(LIB):	$(OBJS) $(SOBJS)
-	$(call cmd_link_o_target, $(OBJS) $(SOBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+obj-y	= dlvision.o
diff --git a/board/gdsys/gdppc440etx/Makefile b/board/gdsys/gdppc440etx/Makefile
index 1d80df8..7e3fc38 100644
--- a/board/gdsys/gdppc440etx/Makefile
+++ b/board/gdsys/gdppc440etx/Makefile
@@ -5,25 +5,5 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
-LIB	= $(obj)lib$(BOARD).o
-
-COBJS	= $(BOARD).o
-SOBJS	= init.o
-
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(COBJS))
-SOBJS	:= $(addprefix $(obj),$(SOBJS))
-
-$(LIB):	$(OBJS) $(SOBJS)
-	$(call cmd_link_o_target, $(OBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+obj-y	= gdppc440etx.o
+extra-y	+= init.o
diff --git a/board/gdsys/intip/Makefile b/board/gdsys/intip/Makefile
index 415ec32..2fbc983 100644
--- a/board/gdsys/intip/Makefile
+++ b/board/gdsys/intip/Makefile
@@ -5,29 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
-LIB	= $(obj)lib$(BOARD).o
-
-COBJS-y	:= $(BOARD).o
-COBJS-$(CONFIG_CMD_CHIP_CONFIG) += chip_config.o
-SOBJS	:= init.o
-
-COBJS   := $(COBJS-y)
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(COBJS))
-SOBJS	:= $(addprefix $(obj),$(SOBJS))
-
-all:	$(LIB) $(SOBJS)
-
-$(LIB):	$(OBJS)
-	$(call cmd_link_o_target, $^)
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+obj-y	:= intip.o
+obj-$(CONFIG_CMD_CHIP_CONFIG) += chip_config.o
+extra-y	+= init.o
diff --git a/board/gdsys/p1022/Makefile b/board/gdsys/p1022/Makefile
index 17f602f..6e02447 100644
--- a/board/gdsys/p1022/Makefile
+++ b/board/gdsys/p1022/Makefile
@@ -7,31 +7,9 @@
 # any later version.
 #
 
-include $(TOPDIR)/config.mk
-
-LIB	= $(obj)lib$(BOARD).o
-
-# COBJS-y	+= $(BOARD).o
-COBJS-y	+= law.o
-COBJS-y	+= ddr.o
-COBJS-y	+= tlb.o
-COBJS-y	+= sdhc_boot.o
-COBJS-$(CONFIG_CONTROLCENTERD) += controlcenterd.o controlcenterd-id.o
-
-COBJS-$(CONFIG_FSL_DIU_FB) += diu.o
-
-SRCS	:= $(SOBJS:.o=.S) $(COBJS-y:.o=.c)
-OBJS	:= $(addprefix $(obj),$(COBJS-y))
-SOBJS	:= $(addprefix $(obj),$(SOBJS))
-
-$(LIB):	$(OBJS) $(SOBJS)
-	$(call cmd_link_o_target, $(OBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+obj-y	+= law.o
+obj-y	+= ddr.o
+obj-y	+= tlb.o
+obj-y	+= sdhc_boot.o
+obj-$(CONFIG_CONTROLCENTERD) += controlcenterd.o controlcenterd-id.o
+obj-$(CONFIG_FSL_DIU_FB) += diu.o