ARM: UniPhier: do not compile unnecessary objects

It is true that unused functions are removed from the ELF image
by the compiler's garbage collection but relying on it too much
does not look nice.
Currently, the build is taking more than it should.

Refactor the makefiles to compile only files that are really needed.
CONFIG_SOC_INIT and CONFIG_DRAM_INIT are no longer needed by the
optimization.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>

arch/arm/cpu/armv7/uniphier/Kconfig

@@ -50,21 +50,12 @@ endchoice
 
 config CMD_PINMON
 	bool "Enable boot mode pins monitor command"
-	depends on !SPL_BUILD
 	default y
 	help
 	  The command "pinmon" shows the state of the boot mode pins.
 	  The boot mode pins are latched when the system reset is deasserted
 	  and determine which device the system should load a boot image from.
 
-config SOC_INIT
-	bool
-	default SPL_BUILD
-
-config DRAM_INIT
-	bool
-	default SPL_BUILD
-
 config CMD_DDRPHY_DUMP
 	bool "Enable dump command of DDR PHY parameters"
 	depends on !SPL_BUILD
@@ -74,7 +65,7 @@ config CMD_DDRPHY_DUMP
 
 choice
 	prompt "DDR3 Frequency select"
-	depends on DRAM_INIT
+	depends on SPL_BUILD
 
 config DDR_FREQ_1600
 	bool "DDR3 1600"

arch/arm/cpu/armv7/uniphier/Makefile

@@ -2,24 +2,32 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(CONFIG_SPL_BUILD) += lowlevel_init.o init_page_table.o
-obj-$(CONFIG_SPL_BUILD) += spl.o
+ifdef CONFIG_SPL_BUILD
+
+obj-y += lowlevel_init.o
+obj-y += init_page_table.o
+obj-y += spl.o
+obj-y += ddrphy_training.o
+
+else
 
-obj-y += timer.o
-obj-y += reset.o
-obj-y += cache_uniphier.o
-obj-y += dram_init.o
-obj-$(CONFIG_DRAM_INIT) += ddrphy_training.o
 obj-$(CONFIG_BOARD_EARLY_INIT_F) += board_early_init_f.o
 obj-$(CONFIG_DISPLAY_CPUINFO) += cpu_info.o
 obj-$(CONFIG_MISC_INIT_F) += print_misc_info.o
+obj-y += dram_init.o
+obj-y += board_common.o
 obj-$(CONFIG_BOARD_EARLY_INIT_R) += board_early_init_r.o
 obj-$(CONFIG_BOARD_LATE_INIT) += board_late_init.o
+obj-y += reset.o
+obj-y += cache_uniphier.o
 obj-$(CONFIG_UNIPHIER_SMP) += smp.o
 obj-$(CONFIG_CMD_PINMON) += cmd_pinmon.o
 obj-$(CONFIG_CMD_DDRPHY_DUMP) += cmd_ddrphy.o
 
-obj-y += board_common.o
+endif
+
+obj-y += timer.o
+
 obj-$(CONFIG_PFC_MICRO_SUPPORT_CARD) += support_card.o
 obj-$(CONFIG_DCC_MICRO_SUPPORT_CARD) += support_card.o
 

arch/arm/cpu/armv7/uniphier/ph1-ld4/Makefile

@@ -2,10 +2,13 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(if $(CONFIG_OF_CONTROL),,y) += platdevice.o
-obj-y += boot-mode.o
+ifdef CONFIG_SPL_BUILD
 obj-$(CONFIG_DEBUG_LL) += lowlevel_debug.o
-obj-$(CONFIG_SOC_INIT) += bcu_init.o sbc_init.o sg_init.o pll_init.o \
-								clkrst_init.o
+obj-y += bcu_init.o sbc_init.o sg_init.o pll_init.o clkrst_init.o \
+	pll_spectrum.o umc_init.o ddrphy_init.o
+else
 obj-$(CONFIG_BOARD_EARLY_INIT_F) += pinctrl.o
-obj-$(CONFIG_DRAM_INIT) += pll_spectrum.o umc_init.o ddrphy_init.o
+obj-$(if $(CONFIG_OF_CONTROL),,y) += platdevice.o
+endif
+
+obj-y += boot-mode.o

arch/arm/cpu/armv7/uniphier/ph1-pro4/Makefile

@@ -2,9 +2,13 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(if $(CONFIG_OF_CONTROL),,y) += platdevice.o
-obj-y += boot-mode.o
+ifdef CONFIG_SPL_BUILD
 obj-$(CONFIG_DEBUG_LL) += lowlevel_debug.o
-obj-$(CONFIG_SOC_INIT) += sbc_init.o sg_init.o pll_init.o clkrst_init.o
+obj-y += sbc_init.o sg_init.o pll_init.o clkrst_init.o \
+	pll_spectrum.o umc_init.o ddrphy_init.o
+else
 obj-$(CONFIG_BOARD_EARLY_INIT_F) += pinctrl.o
-obj-$(CONFIG_DRAM_INIT) += pll_spectrum.o umc_init.o ddrphy_init.o
+obj-$(if $(CONFIG_OF_CONTROL),,y) += platdevice.o
+endif
+
+obj-y += boot-mode.o

arch/arm/cpu/armv7/uniphier/ph1-sld8/Makefile

@@ -2,10 +2,13 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-$(if $(CONFIG_OF_CONTROL),,y) += platdevice.o
-obj-y += boot-mode.o
+ifdef CONFIG_SPL_BUILD
 obj-$(CONFIG_DEBUG_LL) += lowlevel_debug.o
-obj-$(CONFIG_SOC_INIT) += bcu_init.o sbc_init.o sg_init.o pll_init.o \
-								clkrst_init.o
+obj-y += bcu_init.o sbc_init.o sg_init.o pll_init.o clkrst_init.o \
+	pll_spectrum.o umc_init.o ddrphy_init.o
+else
 obj-$(CONFIG_BOARD_EARLY_INIT_F) += pinctrl.o
-obj-$(CONFIG_DRAM_INIT) += pll_spectrum.o umc_init.o ddrphy_init.o
+obj-$(if $(CONFIG_OF_CONTROL),,y) += platdevice.o
+endif
+
+obj-y += boot-mode.o