ARM: renesas: Add support for the r7s72100 Genmai board

Add r7s72100 Genmai board support. Serial console, NOR Flash and
Ethernet are known to work however on-board SDRAM is not yet enabled.

Signed-off-by: Magnus Damm <damm@opensource.se>

include/configs/genmai.h

@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Configuration settings for the Renesas GENMAI board
+ *
+ * Copyright (C) 2017-2019 Renesas Electronics
+ */
+
+#ifndef __GENMAI_H
+#define __GENMAI_H
+
+/* Internal RAM Size (RZ/A1=3M, RZ/A1M=5M, RZ/A1H=10M) */
+#define CFG_SYS_SDRAM_BASE		0x20000000
+#define CFG_SYS_SDRAM_SIZE		(10 * 1024 * 1024)
+
+#endif	/* __GENAMI_H */