dm: sh: serial: Add support driver model

This adds driver model support with this driver. This was tested by Koelsch
board and Gose board.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Acked-by: Simon Glass <sjg@chromium.org>

include/dm/platform_data/serial_sh.h

@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2014  Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
+ * Copyright (c) 2014  Renesas Electronics Corporation
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __serial_sh_h
+#define __serial_sh_h
+
+enum sh_clk_mode {
+	INT_CLK,
+	EXT_CLK,
+};
+
+enum sh_serial_type {
+	PORT_SCI,
+	PORT_SCIF,
+	PORT_SCIFA,
+	PORT_SCIFB,
+};
+
+/*
+ * Information about SCIF port
+ *
+ * @base:	Register base address
+ * @clk:	Input clock rate, used for calculating the baud rate divisor
+ * @clk_mode:	Clock mode, set internal (INT) or external (EXT)
+ * @type:	Type of SCIF
+ */
+struct sh_serial_platdata {
+	unsigned long base;
+	unsigned int clk;
+	enum sh_clk_mode clk_mode;
+	enum sh_serial_type type;
+};
+#endif /* __serial_sh_h */