diff --git a/board/esd/cpci750/serial.h b/board/esd/cpci750/serial.h
new file mode 100644
index 0000000..c7fc8c1
--- /dev/null
+++ b/board/esd/cpci750/serial.h
@@ -0,0 +1,89 @@
+/*
+ * (C) Copyright 2001
+ * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
+ *
+ * modified for marvell db64360 eval board by
+ * Ingo Assmus <ingo.assmus@keymile.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/* serial.h - mostly useful for DUART serial_init in serial.c */
+
+#ifndef __SERIAL_H__
+#define __SERIAL_H__
+
+#if 0
+
+#define B230400         1
+#define B115200         2
+#define B57600          4
+#define B38400          82
+#define B19200          163
+#define B9600           24
+#define B4800           651
+#define B2400           1302
+#define B1200           2604
+#define B600            5208
+#define B300            10417
+#define B150            20833
+#define B110            28409
+#define BDEFAULT        B115200
+
+				/* this stuff is important to initialize
+				the DUART channels */
+
+#define	Scale		0x01L		/* distance between port addresses */
+#define	COM1		0x000003f8		/* Keyboard */
+#define COM2		0x000002f8		/* Host */
+
+
+/* Port Definitions relative to base COM port addresses */
+#define DataIn	(0x00*Scale)	/* data input port */
+#define DataOut	(0x00*Scale)	/* data output port */
+#define BaudLsb	(0x00*Scale)	/* baud rate divisor least significant byte */
+#define BaudMsb	(0x01*Scale)	/* baud rate divisor most significant byte */
+#define	Ier	(0x01*Scale)	/* interrupt enable register */
+#define	Iir	(0x02*Scale)	/* interrupt identification register */
+#define	Lcr	(0x03*Scale)	/* line control register */
+#define	Mcr	(0x04*Scale)	/* modem control register */
+#define	Lsr	(0x05*Scale)	/* line status register */
+#define	Msr	(0x06*Scale)	/* modem status register */
+
+/* Bit Definitions for above ports */
+#define LcrDlab	0x80	/* b7:	 enable baud rate divisor registers */
+#define	LcrDflt	0x03	/* b6-0: no parity, 1 stop, 8 data */
+
+#define	McrRts	0x02	/* b1:	request to send (I am ready to xmit) */
+#define	McrDtr	0x01	/* b0:	data terminal ready (I am alive ready to rcv) */
+#define	McrDflt	(McrRts|McrDtr)
+
+#define LsrTxD	0x6000	/* b5: transmit holding register empty (i.e. xmit OK!)*/
+			/* b6: transmitter empty */
+#define LsrRxD	0x0100	/* b0: received data ready (i.e. got a byte!) */
+
+#define	MsrRi	0x0040	/* b6: ring indicator (other guy is ready to rcv) */
+#define	MsrDsr	0x0020	/* b5: data set ready (other guy is alive ready to rcv */
+#define	MsrCts	0x0010	/* b4: clear to send (other guy is ready to rcv) */
+
+#define IerRda	0xf	/* b0: Enable received data available interrupt */
+
+#endif
+
+#endif /* __SERIAL_H__ */