ipxe/src/config/serial.h

#ifndef CONFIG_SERIAL_H
#define CONFIG_SERIAL_H

/** @file
 *
 * Serial port configuration
 *
 * These options affect the operation of the serial console.  They
 * take effect only if the serial console is included using the
 * CONSOLE_SERIAL option.
 *
 */

#define	COMCONSOLE	0x3f8		/* I/O port address */

/* Keep settings from a previous user of the serial port (e.g. lilo or
 * LinuxBIOS), ignoring COMSPEED, COMDATA, COMPARITY and COMSTOP.
 */
#undef	COMPRESERVE

#ifndef COMPRESERVE
#define	COMSPEED	115200		/* Baud rate */
#define	COMDATA		8		/* Data bits */
#define	COMPARITY	0		/* Parity: 0=None, 1=Odd, 2=Even */
#define	COMSTOP		1		/* Stop bits */
#endif

#endif /* CONFIG_SERIAL_H */