ARM: UniPhier: move platform devices to SPL

Since we do not have OF_CONTROL support for SPL, platform devices
are necessary to enable Driver Model on SPL.

To prepare for that, move platdevice.o to SPL and enable it by
CONFIG_SPL_DM.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

arch/arm/mach-uniphier/ph1-ld4/Makefile

@@ -8,9 +8,9 @@ obj-y += bcu_init.o sg_init.o pll_init.o early_clkrst_init.o \
 	pll_spectrum.o umc_init.o ddrphy_init.o
 obj-$(CONFIG_PFC_MICRO_SUPPORT_CARD) += sbc_init.o
 obj-$(CONFIG_DCC_MICRO_SUPPORT_CARD) += sbc_init_3cs.o
+obj-$(CONFIG_SPL_DM) += platdevice.o
 else
 obj-$(CONFIG_BOARD_EARLY_INIT_F) += pinctrl.o clkrst_init.o
-obj-$(if $(CONFIG_OF_CONTROL),,y) += platdevice.o
 endif
 
 obj-y += boot-mode.o

arch/arm/mach-uniphier/ph1-pro4/Makefile

@@ -8,9 +8,9 @@ obj-y += sg_init.o pll_init.o early_clkrst_init.o \
 	pll_spectrum.o umc_init.o ddrphy_init.o
 obj-$(CONFIG_PFC_MICRO_SUPPORT_CARD) += sbc_init.o
 obj-$(CONFIG_DCC_MICRO_SUPPORT_CARD) += sbc_init_3cs.o
+obj-$(CONFIG_SPL_DM) += platdevice.o
 else
 obj-$(CONFIG_BOARD_EARLY_INIT_F) += pinctrl.o clkrst_init.o
-obj-$(if $(CONFIG_OF_CONTROL),,y) += platdevice.o
 endif
 
 obj-y += boot-mode.o