serial: add vr41xx_siu_early_setup() for serial console

Add vr41xx_siu_early_setup() for serial console.
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/serial/vr41xx_siu.c

 /*
  *  Driver for NEC VR4100 series Serial Interface Unit.
  *
- *  Copyright (C) 2004-2007  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
+ *  Copyright (C) 2004-2008  Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
  *
  *  Based on drivers/serial/8250.c, by Russell King.
  *
@@ -840,6 +840,19 @@ static int __devinit siu_console_init(void)
 
 console_initcall(siu_console_init);
 
+void __init vr41xx_siu_early_setup(struct uart_port *port)
+{
+	if (port->type == PORT_UNKNOWN)
+		return;
+
+	siu_uart_ports[port->line].line = port->line;
+	siu_uart_ports[port->line].type = port->type;
+	siu_uart_ports[port->line].uartclk = SIU_BAUD_BASE * 16;
+	siu_uart_ports[port->line].mapbase = port->mapbase;
+	siu_uart_ports[port->line].mapbase = port->mapbase;
+	siu_uart_ports[port->line].ops = &siu_uart_ops;
+}
+
 #define SERIAL_VR41XX_CONSOLE	&siu_console
 #else
 #define SERIAL_VR41XX_CONSOLE	NULL