rcar_gen3: console: Convert to multi-console API

Convert the R-Car Gen3 platform and both SCIF and Log drivers
to multi-console API.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: I18556973937d150b60453f9150d54ee612571e35
diff --git a/include/drivers/renesas/rcar/console/console.h b/include/drivers/renesas/rcar/console/console.h
new file mode 100644
index 0000000..5bc10b7
--- /dev/null
+++ b/include/drivers/renesas/rcar/console/console.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2015-2019, Renesas Electronics Corporation. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef RCAR_PRINTF_H
+#define RCAR_PRINTF_H
+
+#define CONSOLE_T_RCAR_BASE	CONSOLE_T_DRVDATA
+
+#ifndef __ASSEMBLY__
+
+#include <stdint.h>
+
+typedef struct {
+	console_t console;
+	uintptr_t base;
+} console_rcar_t;
+
+/*
+ * Initialize a new rcar console instance and register it with the console
+ * framework. The |console| pointer must point to storage that will be valid
+ * for the lifetime of the console, such as a global or static local variable.
+ * Its contents will be reinitialized from scratch.
+ */
+int console_rcar_register(uintptr_t baseaddr, uint32_t clock, uint32_t baud,
+			  console_rcar_t *console);
+
+#endif /*__ASSEMBLY__*/
+
+#endif /* RCAR_PRINTF_H */