diff --git a/sys/arch/pmax/dev/promio.c b/sys/arch/pmax/dev/promio.c
new file mode 100644
index 000000000000..3c798a8b5948
--- /dev/null
+++ b/sys/arch/pmax/dev/promio.c
@@ -0,0 +1,344 @@
+/*	$NetBSD: promio.c,v 1.1 1995/04/11 10:08:42 mellon Exp $	*/
+
+/*
+ * Copyright (c) 1988 University of Utah.
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * the Systems Programming Group of the University of Utah Computer
+ * Science Department and Ralph Campbell.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * from: Utah Hdr: cons.c 1.1 90/07/09
+ *
+ *	@(#)cons.c	8.2 (Berkeley) 1/11/94
+ */
+
+#include <sys/param.h>
+#include <sys/proc.h>
+#include <sys/systm.h>
+#include <sys/buf.h>
+#include <sys/ioctl.h>
+#include <sys/tty.h>
+#include <sys/file.h>
+#include <sys/conf.h>
+
+#include <pmax/stand/dec_prom.h>
+
+#include <pmax/dev/device.h>
+#include <pmax/dev/sccreg.h>
+#include <pmax/pmax/kn01.h>
+#include <pmax/pmax/kn02.h>
+#include <pmax/pmax/kmin.h>
+#include <pmax/pmax/maxine.h>
+#include <pmax/pmax/kn03.h>
+#include <pmax/pmax/asic.h>
+#include <pmax/pmax/turbochannel.h>
+#include <pmax/pmax/pmaxtype.h>
+/* #include <pmax/pmax/cons.h> */
+#include <dev/cons.h>
+
+#include <machine/machConst.h>
+#include <machine/pmioctl.h>
+#include <pmax/dev/fbreg.h>
+
+#include <sys/device.h>
+#include <machine/fbio.h>
+#include <sparc/rcons/raster.h>
+#include <machine/fbvar.h>
+
+#include <pm.h>
+#include <cfb.h>
+#include <mfb.h>
+#include <xcfb.h>
+#include <sfb.h>
+#include <dc.h>
+#include <dtop.h>
+#include <scc.h>
+#include <le.h>
+#include <asc.h>
+
+#if NDC > 0
+extern int dcGetc(), dcparam();
+extern void dcPutc();
+#endif
+#if NDTOP > 0
+extern int dtopKBDGetc();
+#endif
+#if NSCC > 0
+extern int sccGetc(), sccparam();
+extern void sccPutc();
+#endif
+static int romgetc __P ((dev_t));
+static void romputc __P ((dev_t, int));
+static void rompollc __P((dev_t, int));
+
+int	pmax_boardtype;		/* Mother board type */
+
+/*
+ * Major device numbers for possible console devices. XXX
+ */
+#define	DTOPDEV		15
+#define	DCDEV		16
+#define	SCCDEV		17
+
+/*
+ * Console I/O is redirected to the appropriate device, either a screen and
+ * keyboard, a serial port, or the "virtual" console.
+ */
+
+extern struct consdev *cn_tab;	/* Console I/O table... */
+
+struct consdev cd = {
+	(void (*)(struct consdev *))0,		/* probe */
+	(void (*)(struct consdev *))0,		/* init */
+	(int  (*)(dev_t))     romgetc,		/* getc */
+	(void (*)(dev_t, int))romputc,		/* putc */
+	(void (*)(dev_t, int))rompollc,		/* pollc */
+	makedev (0, 0),
+	CN_DEAD,
+};
+
+/*
+ * Console initialization: called early on from main,
+ * before vm init or startup.  Do enough configuration
+ * to choose and initialize a console.
+ */
+consinit()
+{
+	register int kbd, crt;
+	register char *oscon;
+	int screen = 0;
+
+	cn_tab = &cd;
+	(*callv -> _printf)("consinit\n");
+
+	/*
+	 * First get the "osconsole" environment variable.
+	 */
+	oscon = (*callv->_getenv)("osconsole");
+	crt = kbd = -1;
+	if (oscon && *oscon >= '0' && *oscon <= '9') {
+		kbd = *oscon - '0';
+		screen = 0;
+		while (*++oscon) {
+			if (*oscon == ',')
+				screen = 1;
+			else if (screen &&
+			    *oscon >= '0' && *oscon <= '9') {
+				crt = kbd;
+				kbd = *oscon - '0';
+				break;
+			}
+		}
+	}
+	if (pmax_boardtype == DS_PMAX && kbd == 1)
+		screen = 1;
+	/*
+	 * The boot program uses PMAX ROM entrypoints so the ROM sets
+	 * osconsole to '1' like the PMAX.
+	 */
+	if (pmax_boardtype == DS_3MAX && crt == -1 && kbd == 1) {
+		screen = 1;
+		crt = 0;
+		kbd = 7;
+	}
+
+	/*
+	 * First try the keyboard/crt cases then fall through to the
+	 * remote serial lines.
+	 */
+	if (screen) {
+	    switch (pmax_boardtype) {
+	    case DS_PMAX:
+#if NDC > 0 && NPM > 0
+		if (pminit()) {
+			cd.cn_dev = makedev(DCDEV, DCKBD_PORT);
+			cd.cn_getc = dcGetc;
+			cd.cn_pri = CN_INTERNAL;
+			return;
+		}
+#endif /* NDC and NPM */
+		goto remcons;
+
+	    case DS_MAXINE:
+#if NDTOP > 0
+		if (kbd == 3) {
+			cd.cn_dev = makedev(DTOPDEV, 0);
+			cd.cn_getc = dtopKBDGetc;
+		} else
+#endif /* NDTOP */
+			goto remcons;
+#if NXCFB > 0
+		if (crt == 3 && xcfbinit()) {
+			cd.cn_pri = CN_INTERNAL;
+			return;
+		}
+#endif /* XCFB */
+		break;
+
+	    case DS_3MAX:
+#if NDC > 0
+		if (kbd == 7) {
+			cd.cn_dev = makedev(DCDEV, DCKBD_PORT);
+			cd.cn_getc = dcGetc;
+		} else
+#endif /* NDC */
+			goto remcons;
+		break;
+
+	    case DS_3MIN:
+	    case DS_3MAXPLUS:
+#if NSCC > 0
+		if (kbd == 3) {
+			cd.cn_dev = makedev(SCCDEV, SCCKBD_PORT);
+			cd.cn_getc = sccGetc;
+		} else
+#endif /* NSCC */
+			goto remcons;
+		break;
+
+	    default:
+		goto remcons;
+	    };
+
+	    /*
+	     * Check for a suitable turbochannel frame buffer.
+	     */
+	    if (tc_slot_info[crt].driver_name) {
+#if NMFB > 0
+		if (strcmp(tc_slot_info[crt].driver_name, "mfb") == 0 &&
+		    mfbinit(tc_slot_info[crt].k1seg_address)) {
+			cd.cn_pri = CN_NORMAL;
+			return;
+		}
+#endif /* NMFB */
+#if NSFB > 0
+		if (strcmp(tc_slot_info[crt].driver_name, "sfb") == 0 &&
+		    sfbinit(tc_slot_info[crt].k1seg_address, 0)) {
+			cd.cn_pri = CN_NORMAL;
+			return;
+		}
+#endif /* NSFB */
+#if NCFB > 0
+		if (strcmp(tc_slot_info[crt].driver_name, "cfb") == 0 &&
+		    cfbinit(tc_slot_info[crt].k1seg_address)) {
+			cd.cn_pri = CN_NORMAL;
+			return;
+		}
+#endif /* NCFB */
+		printf("crt: %s not supported as console device\n",
+			tc_slot_info[crt].driver_name);
+	    } else
+		printf("No crt console device in slot %d\n", crt);
+	}
+remcons:
+	/*
+	 * Configure a serial port as a remote console.
+	 */
+	switch (pmax_boardtype) {
+	case DS_PMAX:
+#if NDC > 0
+		if (kbd == 4)
+			cd.cn_dev = makedev(DCDEV, DCCOMM_PORT);
+		else
+			cd.cn_dev = makedev(DCDEV, DCPRINTER_PORT);
+		cd.cn_getc = dcGetc;
+		cd.cn_putc = dcPutc;
+		cd.cn_pri = CN_REMOTE;
+#endif /* NDC */
+		break;
+
+	case DS_3MAX:
+#if NDC > 0
+		cd.cn_dev = makedev(DCDEV, DCPRINTER_PORT);
+		cd.cn_getc = dcGetc;
+		cd.cn_putc = dcPutc;
+		cd.cn_pri = CN_REMOTE;
+#endif /* NDC */
+		break;
+
+	case DS_3MIN:
+	case DS_3MAXPLUS:
+#if NSCC > 0
+		cd.cn_dev = makedev(SCCDEV, SCCCOMM3_PORT);
+		cd.cn_getc = sccGetc;
+		cd.cn_putc = sccPutc;
+		cd.cn_pri = CN_REMOTE;
+#endif /* NSCC */
+		break;
+
+	case DS_MAXINE:
+#if NSCC > 0
+		cd.cn_dev = makedev(SCCDEV, SCCCOMM2_PORT);
+		cd.cn_getc = sccGetc;
+		cd.cn_putc = sccPutc;
+		cd.cn_pri = CN_REMOTE;
+#endif /* NSCC */
+		break;
+	};
+	if (cd.cn_dev == NODEV)
+		printf("Can't configure console!\n");
+}
+
+/*
+ * Get character from ROM console.
+ */
+static int romgetc(dev)
+	dev_t dev;
+{
+	int s = splhigh ();
+	int chr;
+	chr = (*callv->_getchar)();
+	splx (s);
+	return chr;
+}
+
+/*
+ * Print a character on ROM console.
+ */
+static void romputc (dev, c)
+	dev_t dev;
+	register int c;
+{
+	int s;
+	s = splhigh();
+	(*callv->_printf)("%c", c);
+	splx(s);
+}
+
+static void rompollc (dev, c)
+	dev_t dev;
+	register int c;
+{
+	return;
+}
+
diff --git a/sys/arch/pmax/pmax/cpu_cons.c b/sys/arch/pmax/pmax/cpu_cons.c
new file mode 100644
index 000000000000..aef9491dd88f
--- /dev/null
+++ b/sys/arch/pmax/pmax/cpu_cons.c
@@ -0,0 +1,344 @@
+/*	$NetBSD: cpu_cons.c,v 1.1 1995/04/11 10:08:42 mellon Exp $	*/
+
+/*
+ * Copyright (c) 1988 University of Utah.
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * the Systems Programming Group of the University of Utah Computer
+ * Science Department and Ralph Campbell.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * from: Utah Hdr: cons.c 1.1 90/07/09
+ *
+ *	@(#)cons.c	8.2 (Berkeley) 1/11/94
+ */
+
+#include <sys/param.h>
+#include <sys/proc.h>
+#include <sys/systm.h>
+#include <sys/buf.h>
+#include <sys/ioctl.h>
+#include <sys/tty.h>
+#include <sys/file.h>
+#include <sys/conf.h>
+
+#include <pmax/stand/dec_prom.h>
+
+#include <pmax/dev/device.h>
+#include <pmax/dev/sccreg.h>
+#include <pmax/pmax/kn01.h>
+#include <pmax/pmax/kn02.h>
+#include <pmax/pmax/kmin.h>
+#include <pmax/pmax/maxine.h>
+#include <pmax/pmax/kn03.h>
+#include <pmax/pmax/asic.h>
+#include <pmax/pmax/turbochannel.h>
+#include <pmax/pmax/pmaxtype.h>
+/* #include <pmax/pmax/cons.h> */
+#include <dev/cons.h>
+
+#include <machine/machConst.h>
+#include <machine/pmioctl.h>
+#include <pmax/dev/fbreg.h>
+
+#include <sys/device.h>
+#include <machine/fbio.h>
+#include <sparc/rcons/raster.h>
+#include <machine/fbvar.h>
+
+#include <pm.h>
+#include <cfb.h>
+#include <mfb.h>
+#include <xcfb.h>
+#include <sfb.h>
+#include <dc.h>
+#include <dtop.h>
+#include <scc.h>
+#include <le.h>
+#include <asc.h>
+
+#if NDC > 0
+extern int dcGetc(), dcparam();
+extern void dcPutc();
+#endif
+#if NDTOP > 0
+extern int dtopKBDGetc();
+#endif
+#if NSCC > 0
+extern int sccGetc(), sccparam();
+extern void sccPutc();
+#endif
+static int romgetc __P ((dev_t));
+static void romputc __P ((dev_t, int));
+static void rompollc __P((dev_t, int));
+
+int	pmax_boardtype;		/* Mother board type */
+
+/*
+ * Major device numbers for possible console devices. XXX
+ */
+#define	DTOPDEV		15
+#define	DCDEV		16
+#define	SCCDEV		17
+
+/*
+ * Console I/O is redirected to the appropriate device, either a screen and
+ * keyboard, a serial port, or the "virtual" console.
+ */
+
+extern struct consdev *cn_tab;	/* Console I/O table... */
+
+struct consdev cd = {
+	(void (*)(struct consdev *))0,		/* probe */
+	(void (*)(struct consdev *))0,		/* init */
+	(int  (*)(dev_t))     romgetc,		/* getc */
+	(void (*)(dev_t, int))romputc,		/* putc */
+	(void (*)(dev_t, int))rompollc,		/* pollc */
+	makedev (0, 0),
+	CN_DEAD,
+};
+
+/*
+ * Console initialization: called early on from main,
+ * before vm init or startup.  Do enough configuration
+ * to choose and initialize a console.
+ */
+consinit()
+{
+	register int kbd, crt;
+	register char *oscon;
+	int screen = 0;
+
+	cn_tab = &cd;
+	(*callv -> _printf)("consinit\n");
+
+	/*
+	 * First get the "osconsole" environment variable.
+	 */
+	oscon = (*callv->_getenv)("osconsole");
+	crt = kbd = -1;
+	if (oscon && *oscon >= '0' && *oscon <= '9') {
+		kbd = *oscon - '0';
+		screen = 0;
+		while (*++oscon) {
+			if (*oscon == ',')
+				screen = 1;
+			else if (screen &&
+			    *oscon >= '0' && *oscon <= '9') {
+				crt = kbd;
+				kbd = *oscon - '0';
+				break;
+			}
+		}
+	}
+	if (pmax_boardtype == DS_PMAX && kbd == 1)
+		screen = 1;
+	/*
+	 * The boot program uses PMAX ROM entrypoints so the ROM sets
+	 * osconsole to '1' like the PMAX.
+	 */
+	if (pmax_boardtype == DS_3MAX && crt == -1 && kbd == 1) {
+		screen = 1;
+		crt = 0;
+		kbd = 7;
+	}
+
+	/*
+	 * First try the keyboard/crt cases then fall through to the
+	 * remote serial lines.
+	 */
+	if (screen) {
+	    switch (pmax_boardtype) {
+	    case DS_PMAX:
+#if NDC > 0 && NPM > 0
+		if (pminit()) {
+			cd.cn_dev = makedev(DCDEV, DCKBD_PORT);
+			cd.cn_getc = dcGetc;
+			cd.cn_pri = CN_INTERNAL;
+			return;
+		}
+#endif /* NDC and NPM */
+		goto remcons;
+
+	    case DS_MAXINE:
+#if NDTOP > 0
+		if (kbd == 3) {
+			cd.cn_dev = makedev(DTOPDEV, 0);
+			cd.cn_getc = dtopKBDGetc;
+		} else
+#endif /* NDTOP */
+			goto remcons;
+#if NXCFB > 0
+		if (crt == 3 && xcfbinit()) {
+			cd.cn_pri = CN_INTERNAL;
+			return;
+		}
+#endif /* XCFB */
+		break;
+
+	    case DS_3MAX:
+#if NDC > 0
+		if (kbd == 7) {
+			cd.cn_dev = makedev(DCDEV, DCKBD_PORT);
+			cd.cn_getc = dcGetc;
+		} else
+#endif /* NDC */
+			goto remcons;
+		break;
+
+	    case DS_3MIN:
+	    case DS_3MAXPLUS:
+#if NSCC > 0
+		if (kbd == 3) {
+			cd.cn_dev = makedev(SCCDEV, SCCKBD_PORT);
+			cd.cn_getc = sccGetc;
+		} else
+#endif /* NSCC */
+			goto remcons;
+		break;
+
+	    default:
+		goto remcons;
+	    };
+
+	    /*
+	     * Check for a suitable turbochannel frame buffer.
+	     */
+	    if (tc_slot_info[crt].driver_name) {
+#if NMFB > 0
+		if (strcmp(tc_slot_info[crt].driver_name, "mfb") == 0 &&
+		    mfbinit(tc_slot_info[crt].k1seg_address)) {
+			cd.cn_pri = CN_NORMAL;
+			return;
+		}
+#endif /* NMFB */
+#if NSFB > 0
+		if (strcmp(tc_slot_info[crt].driver_name, "sfb") == 0 &&
+		    sfbinit(tc_slot_info[crt].k1seg_address, 0)) {
+			cd.cn_pri = CN_NORMAL;
+			return;
+		}
+#endif /* NSFB */
+#if NCFB > 0
+		if (strcmp(tc_slot_info[crt].driver_name, "cfb") == 0 &&
+		    cfbinit(tc_slot_info[crt].k1seg_address)) {
+			cd.cn_pri = CN_NORMAL;
+			return;
+		}
+#endif /* NCFB */
+		printf("crt: %s not supported as console device\n",
+			tc_slot_info[crt].driver_name);
+	    } else
+		printf("No crt console device in slot %d\n", crt);
+	}
+remcons:
+	/*
+	 * Configure a serial port as a remote console.
+	 */
+	switch (pmax_boardtype) {
+	case DS_PMAX:
+#if NDC > 0
+		if (kbd == 4)
+			cd.cn_dev = makedev(DCDEV, DCCOMM_PORT);
+		else
+			cd.cn_dev = makedev(DCDEV, DCPRINTER_PORT);
+		cd.cn_getc = dcGetc;
+		cd.cn_putc = dcPutc;
+		cd.cn_pri = CN_REMOTE;
+#endif /* NDC */
+		break;
+
+	case DS_3MAX:
+#if NDC > 0
+		cd.cn_dev = makedev(DCDEV, DCPRINTER_PORT);
+		cd.cn_getc = dcGetc;
+		cd.cn_putc = dcPutc;
+		cd.cn_pri = CN_REMOTE;
+#endif /* NDC */
+		break;
+
+	case DS_3MIN:
+	case DS_3MAXPLUS:
+#if NSCC > 0
+		cd.cn_dev = makedev(SCCDEV, SCCCOMM3_PORT);
+		cd.cn_getc = sccGetc;
+		cd.cn_putc = sccPutc;
+		cd.cn_pri = CN_REMOTE;
+#endif /* NSCC */
+		break;
+
+	case DS_MAXINE:
+#if NSCC > 0
+		cd.cn_dev = makedev(SCCDEV, SCCCOMM2_PORT);
+		cd.cn_getc = sccGetc;
+		cd.cn_putc = sccPutc;
+		cd.cn_pri = CN_REMOTE;
+#endif /* NSCC */
+		break;
+	};
+	if (cd.cn_dev == NODEV)
+		printf("Can't configure console!\n");
+}
+
+/*
+ * Get character from ROM console.
+ */
+static int romgetc(dev)
+	dev_t dev;
+{
+	int s = splhigh ();
+	int chr;
+	chr = (*callv->_getchar)();
+	splx (s);
+	return chr;
+}
+
+/*
+ * Print a character on ROM console.
+ */
+static void romputc (dev, c)
+	dev_t dev;
+	register int c;
+{
+	int s;
+	s = splhigh();
+	(*callv->_printf)("%c", c);
+	splx(s);
+}
+
+static void rompollc (dev, c)
+	dev_t dev;
+	register int c;
+{
+	return;
+}
+