ARM: UniPhier: add PH1-sLD3 SoC support

The init code for UMC (Unified Memory Controller) and PLL has not
been mainlined yet, but U-boot proper should work.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/mach-uniphier/ph1-sld3/early_pinctrl.c b/arch/arm/mach-uniphier/ph1-sld3/early_pinctrl.c
new file mode 100644
index 0000000..f113e65
--- /dev/null
+++ b/arch/arm/mach-uniphier/ph1-sld3/early_pinctrl.c
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2011-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <mach/sg-regs.h>
+
+void early_pin_init(void)
+{
+	/* Comment format:    PAD Name -> Function Name */
+
+#ifdef CONFIG_UNIPHIER_SERIAL
+	sg_set_pinsel(63, 0);	/* RXD0 */
+	sg_set_pinsel(64, 1);	/* TXD0 */
+
+	sg_set_pinsel(65, 0);	/* RXD1 */
+	sg_set_pinsel(66, 1);	/* TXD1 */
+
+	sg_set_pinsel(96, 2);	/* RXD2 */
+	sg_set_pinsel(102, 2);	/* TXD2 */
+#endif
+}