ARM: uniphier: refactor spl_init_board()

Merge init-*.c into a single file using a table of callbacks because
the initialization flow is almost common among SoCs.

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 bf77fca..37df04b 100644
--- a/arch/arm/mach-uniphier/clk/Makefile
+++ b/arch/arm/mach-uniphier/clk/Makefile
@@ -8,9 +8,9 @@
 obj-$(CONFIG_ARCH_UNIPHIER_LD4)		+= clk-early-sld3.o clk-dram-sld3.o dpll-ld4.o
 obj-$(CONFIG_ARCH_UNIPHIER_PRO4)	+= clk-early-sld3.o clk-dram-sld3.o dpll-pro4.o
 obj-$(CONFIG_ARCH_UNIPHIER_SLD8)	+= clk-early-sld3.o clk-dram-sld3.o dpll-sld8.o
-obj-$(CONFIG_ARCH_UNIPHIER_PRO5)	+= clk-early-sld3.o clk-dram-pro5.o
-obj-$(CONFIG_ARCH_UNIPHIER_PXS2)	+= clk-early-sld3.o clk-dram-pxs2.o
-obj-$(CONFIG_ARCH_UNIPHIER_LD6B)	+= clk-early-sld3.o clk-dram-pxs2.o
+obj-$(CONFIG_ARCH_UNIPHIER_PRO5)	+= clk-early-sld3.o clk-dram-pro5.o dpll-pro5.o
+obj-$(CONFIG_ARCH_UNIPHIER_PXS2)	+= clk-early-sld3.o clk-dram-pxs2.o dpll-pxs2.o
+obj-$(CONFIG_ARCH_UNIPHIER_LD6B)	+= clk-early-sld3.o clk-dram-pxs2.o dpll-pxs2.o
 obj-$(CONFIG_ARCH_UNIPHIER_LD11)	+= clk-early-ld11.o clk-dram-ld11.o dpll-ld11.o
 obj-$(CONFIG_ARCH_UNIPHIER_LD20)	+= clk-early-ld11.o clk-dram-ld20.o dpll-ld20.o
 
diff --git a/arch/arm/mach-uniphier/clk/dpll-pro5.c b/arch/arm/mach-uniphier/clk/dpll-pro5.c
new file mode 100644
index 0000000..d3a42c7
--- /dev/null
+++ b/arch/arm/mach-uniphier/clk/dpll-pro5.c
@@ -0,0 +1,6 @@
+#include "../init.h"
+
+int uniphier_pro5_dpll_init(const struct uniphier_board_data *bd)
+{
+	return 0;
+}
diff --git a/arch/arm/mach-uniphier/clk/dpll-pxs2.c b/arch/arm/mach-uniphier/clk/dpll-pxs2.c
new file mode 100644
index 0000000..328ebf6
--- /dev/null
+++ b/arch/arm/mach-uniphier/clk/dpll-pxs2.c
@@ -0,0 +1,6 @@
+#include "../init.h"
+
+int uniphier_pxs2_dpll_init(const struct uniphier_board_data *bd)
+{
+	return 0;
+}