post: descend only when CONFIG_HAS_POST is defined

All objects under post/ directory are enabled by CONFIG_HAS_POST.
(post/tests.o is enabled by CONFIG_POST_STD_LIST.
But CONFIG_POST_STD_LIST depends on CONFIG_HAS_POST.)

We can move CONFIG_HAS_POST switch to the top Makefile.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
diff --git a/post/Makefile b/post/Makefile
index 1439244..20a463a 100644
--- a/post/Makefile
+++ b/post/Makefile
@@ -5,16 +5,14 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(CONFIG_HAS_POST)	+= post.o
+obj-y	+= post.o
 obj-$(CONFIG_POST_STD_LIST)	+= tests.o
 
-obj-$(CONFIG_HAS_POST) += drivers/
-ifeq ($(ARCH),powerpc)
-obj-$(CONFIG_HAS_POST) += lib_powerpc/
-endif
+obj-y += drivers/
+obj-$(CONFIG_PPC) += lib_powerpc/
 ifneq ($(filter mpc83xx mpc8xx ppc4xx,$(CPU)),)
-obj-$(CONFIG_HAS_POST) += cpu/$(CPU)/
+obj-y += cpu/$(CPU)/
 endif
 ifneq ($(filter lwmon lwmon5 netta pdm360ng,$(BOARD)),)
-obj-$(CONFIG_HAS_POST) += board/$(BOARD)/
+obj-y += board/$(BOARD)/
 endif
diff --git a/post/board/lwmon/Makefile b/post/board/lwmon/Makefile
index b23debc..7f6d5a0 100644
--- a/post/board/lwmon/Makefile
+++ b/post/board/lwmon/Makefile
@@ -5,4 +5,4 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(CONFIG_HAS_POST)	+= sysmon.o
+obj-y += sysmon.o
diff --git a/post/board/lwmon5/Makefile b/post/board/lwmon5/Makefile
index a50ce67..76262c7 100644
--- a/post/board/lwmon5/Makefile
+++ b/post/board/lwmon5/Makefile
@@ -5,4 +5,4 @@
 #
 # SPDX-License-Identifier:	GPL-2.0+
 
-obj-$(CONFIG_HAS_POST)	+= sysmon.o watchdog.o dspic.o fpga.o dsp.o gdc.o
+obj-y += 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 5c37f49..8fc1945 100644
--- a/post/board/netta/Makefile
+++ b/post/board/netta/Makefile
@@ -5,4 +5,4 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(CONFIG_HAS_POST)	+= codec.o dsp.o
+obj-y += codec.o dsp.o
diff --git a/post/board/pdm360ng/Makefile b/post/board/pdm360ng/Makefile
index b43b77b..9aa96a1 100644
--- a/post/board/pdm360ng/Makefile
+++ b/post/board/pdm360ng/Makefile
@@ -5,4 +5,4 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(CONFIG_HAS_POST)	+= coproc_com.o
+obj-y += coproc_com.o
diff --git a/post/cpu/mpc83xx/Makefile b/post/cpu/mpc83xx/Makefile
index 4b3c50e..d57b667 100644
--- a/post/cpu/mpc83xx/Makefile
+++ b/post/cpu/mpc83xx/Makefile
@@ -5,4 +5,4 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(CONFIG_HAS_POST)	+= ecc.o
+obj-y += ecc.o
diff --git a/post/cpu/ppc4xx/Makefile b/post/cpu/ppc4xx/Makefile
index ed3e8e8..e9ec286 100644
--- a/post/cpu/ppc4xx/Makefile
+++ b/post/cpu/ppc4xx/Makefile
@@ -5,12 +5,12 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(CONFIG_HAS_POST)	+= cache_4xx.o
-obj-$(CONFIG_HAS_POST)	+= cache.o
-obj-$(CONFIG_HAS_POST)	+= denali_ecc.o
-obj-$(CONFIG_HAS_POST)	+= ether.o
-obj-$(CONFIG_HAS_POST)	+= fpu.o
-obj-$(CONFIG_HAS_POST)	+= ocm.o
-obj-$(CONFIG_HAS_POST)	+= spr.o
-obj-$(CONFIG_HAS_POST)	+= uart.o
-obj-$(CONFIG_HAS_POST)	+= watchdog.o
+obj-y += cache_4xx.o
+obj-y += cache.o
+obj-y += denali_ecc.o
+obj-y += ether.o
+obj-y += fpu.o
+obj-y += ocm.o
+obj-y += spr.o
+obj-y += uart.o
+obj-y += watchdog.o
diff --git a/post/drivers/Makefile b/post/drivers/Makefile
index 328f880..1abfb1f 100644
--- a/post/drivers/Makefile
+++ b/post/drivers/Makefile
@@ -5,4 +5,4 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(CONFIG_HAS_POST)	+= flash.o i2c.o memory.o rtc.o
+obj-y += flash.o i2c.o memory.o rtc.o
diff --git a/post/lib_powerpc/Makefile b/post/lib_powerpc/Makefile
index d2b8a94..0cbb6b6 100644
--- a/post/lib_powerpc/Makefile
+++ b/post/lib_powerpc/Makefile
@@ -5,9 +5,9 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(CONFIG_HAS_POST) += asm.o
-obj-$(CONFIG_HAS_POST) += cpu.o cmp.o cmpi.o two.o twox.o three.o threex.o
-obj-$(CONFIG_HAS_POST) += threei.o andi.o srawi.o rlwnm.o rlwinm.o rlwimi.o
-obj-$(CONFIG_HAS_POST) += store.o load.o cr.o b.o multi.o string.o complex.o
+obj-y += asm.o
+obj-y += cpu.o cmp.o cmpi.o two.o twox.o three.o threex.o
+obj-y += threei.o andi.o srawi.o rlwnm.o rlwinm.o rlwimi.o
+obj-y += store.o load.o cr.o b.o multi.o string.o complex.o
 
-obj-$(CONFIG_HAS_POST) += fpu/
+obj-y += fpu/
diff --git a/post/lib_powerpc/fpu/Makefile b/post/lib_powerpc/fpu/Makefile
index ee01a31..ae56a82 100644
--- a/post/lib_powerpc/fpu/Makefile
+++ b/post/lib_powerpc/fpu/Makefile
@@ -5,15 +5,15 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(CONFIG_HAS_POST)	+= 20001122-1.o
-obj-$(CONFIG_HAS_POST)	+= 20010114-2.o
-obj-$(CONFIG_HAS_POST)	+= 20010226-1.o
-obj-$(CONFIG_HAS_POST)	+= 980619-1.o
-obj-$(CONFIG_HAS_POST)	+= acc1.o
-obj-$(CONFIG_HAS_POST)	+= compare-fp-1.o
-obj-$(CONFIG_HAS_POST)	+= fpu.o
-obj-$(CONFIG_HAS_POST)	+= mul-subnormal-single-1.o
-obj-$(CONFIG_HAS_POST)	+= darwin-ldouble.o
+obj-y	+= 20001122-1.o
+obj-y	+= 20010114-2.o
+obj-y	+= 20010226-1.o
+obj-y	+= 980619-1.o
+obj-y	+= acc1.o
+obj-y	+= compare-fp-1.o
+obj-y	+= fpu.o
+obj-y	+= mul-subnormal-single-1.o
+obj-y	+= darwin-ldouble.o
 
 CFLAGS := $(shell echo $(CFLAGS) | sed s/-msoft-float//)
 CFLAGS += -mhard-float -fkeep-inline-functions