ARM: uniphier: add PLL init code for LD20 SoC

Initialize the DPLL (PLL for DRAM) in SPL, and others in U-Boot
proper.  Split the common code into pll-base-ld20.c for easier
re-use.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/mach-uniphier/clk/Makefile b/arch/arm/mach-uniphier/clk/Makefile
index 233e659..c8d59ea 100644
--- a/arch/arm/mach-uniphier/clk/Makefile
+++ b/arch/arm/mach-uniphier/clk/Makefile
@@ -12,7 +12,7 @@
 obj-$(CONFIG_ARCH_UNIPHIER_PXS2)	+= early-clk-pxs2.o
 obj-$(CONFIG_ARCH_UNIPHIER_LD6B)	+= early-clk-pxs2.o
 obj-$(CONFIG_ARCH_UNIPHIER_LD11)	+= early-clk-ld11.o
-obj-$(CONFIG_ARCH_UNIPHIER_LD20)	+= early-clk-ld20.o
+obj-$(CONFIG_ARCH_UNIPHIER_LD20)	+= early-clk-ld20.o dpll-ld20.o
 
 else
 
@@ -24,6 +24,8 @@
 obj-$(CONFIG_ARCH_UNIPHIER_PXS2)	+= clk-pxs2.o
 obj-$(CONFIG_ARCH_UNIPHIER_LD6B)	+= clk-pxs2.o
 obj-$(CONFIG_ARCH_UNIPHIER_LD11)	+= clk-ld11.o
-obj-$(CONFIG_ARCH_UNIPHIER_LD20)	+= clk-ld20.o
+obj-$(CONFIG_ARCH_UNIPHIER_LD20)	+= clk-ld20.o pll-ld20.o
 
 endif
+
+obj-$(CONFIG_ARCH_UNIPHIER_LD20)	+= pll-base-ld20.o