Makefile: convert makefiles to Kbuild style and delete grep switch

We have converted all makefiles needed to build $(LIBS).

Until this commit we used to grep switch so that U-Boot style
and Kbuild style makefiles coexist.
But we do not need any more.

Goint forward, use always Kbuild style Makefile when adding
a new Makefile

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
diff --git a/board/avionic-design/medcom-wide/Makefile b/board/avionic-design/medcom-wide/Makefile
index 3077319..6c4ab64 100644
--- a/board/avionic-design/medcom-wide/Makefile
+++ b/board/avionic-design/medcom-wide/Makefile
@@ -7,28 +7,8 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
 $(shell mkdir -p $(obj)../common $(obj)../../nvidia/common)
 
-LIB	= $(obj)lib$(BOARD).o
-
-COBJS-y	:= ../common/tamonten.o
+obj-y	:= ../common/tamonten.o
 
 include ../../nvidia/common/common.mk
-
-COBJS	:= $(COBJS-y)
-SRCS	:= $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(COBJS))
-
-$(LIB):	$(obj).depend $(OBJS)
-	$(call cmd_link_o_target, $(OBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/board/avionic-design/plutux/Makefile b/board/avionic-design/plutux/Makefile
index 3077319..6c4ab64 100644
--- a/board/avionic-design/plutux/Makefile
+++ b/board/avionic-design/plutux/Makefile
@@ -7,28 +7,8 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
 $(shell mkdir -p $(obj)../common $(obj)../../nvidia/common)
 
-LIB	= $(obj)lib$(BOARD).o
-
-COBJS-y	:= ../common/tamonten.o
+obj-y	:= ../common/tamonten.o
 
 include ../../nvidia/common/common.mk
-
-COBJS	:= $(COBJS-y)
-SRCS	:= $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(COBJS))
-
-$(LIB):	$(obj).depend $(OBJS)
-	$(call cmd_link_o_target, $(OBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/board/avionic-design/tec/Makefile b/board/avionic-design/tec/Makefile
index 3077319..6c4ab64 100644
--- a/board/avionic-design/tec/Makefile
+++ b/board/avionic-design/tec/Makefile
@@ -7,28 +7,8 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
 $(shell mkdir -p $(obj)../common $(obj)../../nvidia/common)
 
-LIB	= $(obj)lib$(BOARD).o
-
-COBJS-y	:= ../common/tamonten.o
+obj-y	:= ../common/tamonten.o
 
 include ../../nvidia/common/common.mk
-
-COBJS	:= $(COBJS-y)
-SRCS	:= $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(COBJS))
-
-$(LIB):	$(obj).depend $(OBJS)
-	$(call cmd_link_o_target, $(OBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/board/avnet/fx12mm/Makefile b/board/avnet/fx12mm/Makefile
index 2dd48b6..37fb02f 100644
--- a/board/avnet/fx12mm/Makefile
+++ b/board/avnet/fx12mm/Makefile
@@ -6,6 +6,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-COBJS	+= $(BOARD).o
+obj-y	+= fx12mm.o
 
 include $(SRCTREE)/board/xilinx/ppc405-generic/Makefile
diff --git a/board/avnet/v5fx30teval/Makefile b/board/avnet/v5fx30teval/Makefile
index 51b777c..f7d0417 100644
--- a/board/avnet/v5fx30teval/Makefile
+++ b/board/avnet/v5fx30teval/Makefile
@@ -6,6 +6,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-COBJS	+= $(BOARD).o
+obj-y	+= v5fx30teval.o
 
 include $(SRCTREE)/board/xilinx/ppc440-generic/Makefile
diff --git a/board/compal/paz00/Makefile b/board/compal/paz00/Makefile
index fa5c510..824cd2e 100644
--- a/board/compal/paz00/Makefile
+++ b/board/compal/paz00/Makefile
@@ -14,28 +14,8 @@
 # more details.
 #
 
-include $(TOPDIR)/config.mk
-
 $(shell mkdir -p $(obj)../../nvidia/common)
 
-LIB	= $(obj)lib$(BOARD).o
-
-COBJS-y	:= $(BOARD).o
+obj-y	:= paz00.o
 
 include ../../nvidia/common/common.mk
-
-COBJS	:= $(COBJS-y)
-SRCS	:= $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(COBJS))
-
-$(LIB):	$(obj).depend $(OBJS)
-	$(call cmd_link_o_target, $(OBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/board/compulab/trimslice/Makefile b/board/compulab/trimslice/Makefile
index 3ce180c..0818673 100644
--- a/board/compulab/trimslice/Makefile
+++ b/board/compulab/trimslice/Makefile
@@ -5,28 +5,8 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
 $(shell mkdir -p $(obj)../../nvidia/common)
 
-LIB	= $(obj)lib$(BOARD).o
-
-COBJS-y	:= $(BOARD).o
+obj-y	:= trimslice.o
 
 include ../../nvidia/common/common.mk
-
-COBJS	:= $(COBJS-y)
-SRCS	:= $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(COBJS))
-
-$(LIB):	$(obj).depend $(OBJS)
-	$(call cmd_link_o_target, $(OBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/board/nvidia/common/Makefile b/board/nvidia/common/Makefile
index 6215caf..e3fcf2b 100644
--- a/board/nvidia/common/Makefile
+++ b/board/nvidia/common/Makefile
@@ -1,30 +1,4 @@
 # Copyright (c) 2011 The Chromium OS Authors.
 # 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
-
 include common.mk
-
-COBJS	:= $(COBJS-y)
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(COBJS))
-SOBJS	:= $(addprefix $(obj),$(SOBJS))
-
-all:	$(LIB)
-
-$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
-	$(call cmd_link_o_target, $(OBJS) $(SOBJS))
-
-#########################################################################
-# This is for $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/board/nvidia/common/common.mk b/board/nvidia/common/common.mk
index d9bcb85..9a9b529 100644
--- a/board/nvidia/common/common.mk
+++ b/board/nvidia/common/common.mk
@@ -1,3 +1,3 @@
 # common options for all tegra boards
-COBJS-y	+= ../../nvidia/common/board.o
-COBJS-$(CONFIG_TEGRA_CLOCK_SCALING) += ../../nvidia/common/emc.o
+obj-y	+= ../../nvidia/common/board.o
+obj-$(CONFIG_TEGRA_CLOCK_SCALING) += ../../nvidia/common/emc.o
diff --git a/board/xilinx/ml507/Makefile b/board/xilinx/ml507/Makefile
index 51b777c..3c84651 100644
--- a/board/xilinx/ml507/Makefile
+++ b/board/xilinx/ml507/Makefile
@@ -6,6 +6,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-COBJS	+= $(BOARD).o
+obj-y	+= ml507.o
 
 include $(SRCTREE)/board/xilinx/ppc440-generic/Makefile
diff --git a/board/xilinx/ppc405-generic/Makefile b/board/xilinx/ppc405-generic/Makefile
index cc161ae..1562f17 100644
--- a/board/xilinx/ppc405-generic/Makefile
+++ b/board/xilinx/ppc405-generic/Makefile
@@ -9,27 +9,8 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
 ifneq ($(OBJTREE),$(SRCTREE))
 $(shell mkdir -p $(obj)../../xilinx/ppc405-generic)
 endif
 
-LIB	= $(obj)lib$(BOARD).o
-
-COBJS	+= ../../xilinx/ppc405-generic/xilinx_ppc405_generic.o
-
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(COBJS))
-SOBJS	:= $(addprefix $(obj),$(SOBJS))
-
-$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
-	$(call cmd_link_o_target, $(OBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+obj-y	+= ../../xilinx/ppc405-generic/xilinx_ppc405_generic.o
diff --git a/board/xilinx/ppc440-generic/Makefile b/board/xilinx/ppc440-generic/Makefile
index 597afde..b2227c5 100644
--- a/board/xilinx/ppc440-generic/Makefile
+++ b/board/xilinx/ppc440-generic/Makefile
@@ -9,28 +9,9 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
 ifneq ($(OBJTREE),$(SRCTREE))
 $(shell mkdir -p $(obj)../../xilinx/ppc440-generic)
 endif
 
-LIB	= $(obj)lib$(BOARD).o
-
-COBJS	+= ../../xilinx/ppc440-generic/xilinx_ppc440_generic.o
-SOBJS 	+= ../../xilinx/ppc440-generic/init.o
-
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(COBJS))
-SOBJS	:= $(addprefix $(obj),$(SOBJS))
-
-$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
-	$(call cmd_link_o_target, $(OBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+obj-y	+= ../../xilinx/ppc440-generic/xilinx_ppc440_generic.o
+extra-y 	+= ../../xilinx/ppc440-generic/init.o