ARM: uniphier: add PXs3 SoC support

Initial support for PXs3 SoC.

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 37df04b..43df670 100644
--- a/arch/arm/mach-uniphier/clk/Makefile
+++ b/arch/arm/mach-uniphier/clk/Makefile
@@ -25,6 +25,7 @@
 obj-$(CONFIG_ARCH_UNIPHIER_LD6B)	+= clk-pxs2.o
 obj-$(CONFIG_ARCH_UNIPHIER_LD11)	+= clk-ld11.o pll-ld11.o
 obj-$(CONFIG_ARCH_UNIPHIER_LD20)	+= pll-ld20.o
+obj-$(CONFIG_ARCH_UNIPHIER_PXS3)	+= pll-pxs3.o
 
 endif
 
diff --git a/arch/arm/mach-uniphier/clk/pll-pxs3.c b/arch/arm/mach-uniphier/clk/pll-pxs3.c
new file mode 100644
index 0000000..e29d9d0
--- /dev/null
+++ b/arch/arm/mach-uniphier/clk/pll-pxs3.c
@@ -0,0 +1,7 @@
+/*
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+void uniphier_pxs3_pll_init(void)
+{
+}