From: pefo <pefo@openbsd.org>
Date: Sat, 14 Sep 1996 15:58:11 +0000 (+0000)
Subject: First shot at a multivendor kernel. This version handles pica's and desk-
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=1506fccb1938d366d8d37eda267feebb52e2412b;p=openbsd

First shot at a multivendor kernel. This version handles pica's and desk-
station tyne's. Auto detection still needs to be compleeted.
Checked in version is hardwired for pica's. Use the PICA config file.
---

diff --git a/sys/arch/arc/arc/arcbios.c b/sys/arch/arc/arc/arcbios.c
index d6b9f0beded..075d174dff2 100644
--- a/sys/arch/arc/arc/arcbios.c
+++ b/sys/arch/arc/arc/arcbios.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: arcbios.c,v 1.1 1996/09/06 04:57:51 imp Exp $	*/
+/*	$OpenBSD: arcbios.c,v 1.2 1996/09/14 15:58:11 pefo Exp $	*/
 /*-
  * Copyright (c) 1996 M. Warner Losh.  All rights reserved.
  *
@@ -38,12 +38,197 @@
 arc_param_blk_t *bios_base = (arc_param_blk_t *) 0x80001000;
 
 extern int	cputype;		/* Mother board type */
+extern int	physmem;		/* Total physical memory size */
+
+char buf[100];	/*XXX*/
+arc_dsp_stat_t	displayinfo;		/* Save area for display status info. */
+
+/*
+ *	ARC Bios trampoline code.
+ */
+#define ARC_Call(Name,Offset)	\
+__asm__("\n"			\
+"	.set	noreorder\n"	\
+"	.globl	" #Name "\n" 	\
+#Name":\n"			\
+"	lw	$2, 0x80001020\n"\
+"	lw	$2," #Offset "($2)\n"\
+"	jr	$2\n"		\
+"	nop\n"		);
+
+ARC_Call(Bios_Load,			0x00);
+ARC_Call(Bios_Invoke,			0x04);
+ARC_Call(Bios_Execute,			0x08);
+ARC_Call(Bios_Halt,			0x0c);
+ARC_Call(Bios_PowerDown,		0x10);
+ARC_Call(Bios_Restart,			0x14);
+ARC_Call(Bios_Reboot,			0x18);
+ARC_Call(Bios_EnterInteractiveMode,	0x1c);
+ARC_Call(Bios_Unused1,			0x20);
+ARC_Call(Bios_GetPeer,			0x24);
+ARC_Call(Bios_GetChild,			0x28);
+ARC_Call(Bios_GetParent,		0x2c);
+ARC_Call(Bios_GetConfigurationData,	0x30);
+ARC_Call(Bios_AddChild,			0x34);
+ARC_Call(Bios_DeleteComponent,		0x38);
+ARC_Call(Bios_GetComponent,		0x3c);
+ARC_Call(Bios_SaveConfiguration,	0x40);
+ARC_Call(Bios_GetSystemId,		0x44);
+ARC_Call(Bios_GetMemoryDescriptor,	0x48);
+ARC_Call(Bios_Unused2,			0x4c);
+ARC_Call(Bios_GetTime,			0x50);
+ARC_Call(Bios_GetRelativeTime,		0x54);
+ARC_Call(Bios_GetDirectoryEntry,	0x58);
+ARC_Call(Bios_Open,			0x5c);
+ARC_Call(Bios_Close,			0x60);
+ARC_Call(Bios_Read,			0x64);
+ARC_Call(Bios_GetReadStatus,		0x68);
+ARC_Call(Bios_Write,			0x6c);
+ARC_Call(Bios_Seek,			0x70);
+ARC_Call(Bios_Mount,			0x74);
+ARC_Call(Bios_GetEnvironmentVariable,	0x78);
+ARC_Call(Bios_SetEnvironmentVariable,	0x7c);
+ARC_Call(Bios_GetFileInformation,	0x80);
+ARC_Call(Bios_SetFileInformation,	0x84);
+ARC_Call(Bios_FlushAllCaches,		0x88);
+ARC_Call(Bios_TestUnicodeCharacter,	0x8c);
+ARC_Call(Bios_GetDisplayStatus,		0x90);
 
 /*
- * Incomplate version of bios_ident
+ *	Simple getchar/putchar interface.
+ */
+
+bios_getchar()
+{
+	char buf[4];
+	int  cnt;
+
+	if(Bios_Read(0, &buf, 1, &cnt) != 0)
+		return(-1);
+	return(buf[0] & 255);
+}
+
+bios_putchar(c)
+char c;
+{
+	char buf[4];
+	int  cnt;
+
+	if(c == '\n') {
+		buf[0] = '\r';
+		buf[1] = c;
+		cnt = 2;
+		if(displayinfo.CursorYPosition < displayinfo.CursorMaxYPosition)
+			displayinfo.CursorYPosition++;
+	}
+	else {
+		buf[0] = c;
+		cnt = 1;
+	}
+	if(Bios_Write(1, &buf, cnt, &cnt) != 0)
+		return(-1);
+	return(0);
+}
+
+bios_putstring(s)
+char *s;
+{
+	while(*s) {
+		bios_putchar(*s++);
+	}
+}
+
+bios_configure_memory()
+{
+	arc_mem_t *descr = 0;
+	struct mem_descriptor *m;
+	vm_offset_t seg_start, seg_end;
+	int	i;
+
+	descr = (arc_mem_t *)Bios_GetMemoryDescriptor(descr);
+	while(descr != 0) {
+		sprintf(buf, "mem %d, 0x%x, 0x%x\n",
+			descr->Type,
+			descr->BasePage * 4096,
+			descr->PageCount * 4096);
+		bios_putstring(buf);
+
+		seg_start = descr->BasePage * 4096;
+		seg_end = seg_start + descr->PageCount * 4096;
+
+		switch(descr->Type) {
+		case BadMemory:		/* Have no use for theese */
+			break;
+
+		case ExeceptionBlock:
+		case SystemParameterBlock:
+		case FreeMemory:
+		case FirmwareTemporary:
+		case FirmwarePermanent:
+		case FreeContigous:
+			physmem += descr->PageCount * 4096;
+			m = 0;
+			for( i = 0; i < MAXMEMSEGS; i++) {
+				if(mem_layout[i].mem_size == 0) {
+					if(m == 0)
+						m = &mem_layout[i]; /* free */
+				}
+				else if(seg_end == mem_layout[i].mem_start) {
+					m = &mem_layout[i];
+					m->mem_start = seg_start;
+					m->mem_size += seg_end - seg_start;
+				}
+				else if(mem_layout[i].mem_start +
+				    mem_layout[i].mem_size == seg_start) {
+					m = &mem_layout[i];
+					m->mem_size += seg_end - seg_start;
+				}
+			}
+			if(m && m->mem_size == 0) {
+				m->mem_start = seg_start;
+				m->mem_size = seg_end - seg_start;
+			}
+			break;
+
+		case LoadedProgram:	/* This is the loaded kernel */
+			physmem += descr->PageCount * 4096;
+			break;
+
+		default:		/* Unknown type, leave it alone... */
+			break;
+		}
+		descr = (arc_mem_t *)Bios_GetMemoryDescriptor(descr);
+	}
+
+	for( i = 0; i < MAXMEMSEGS; i++) {
+		sprintf(buf, "MEM %d, 0x%x, 0x%x\n",i,
+			mem_layout[i].mem_start,
+			mem_layout[i].mem_size);
+		bios_putstring(buf);
+	}
+}
+/*
+ * Incomplete version of bios_ident
  */
 void
 bios_ident()
 {
-    cputype = DESKSTATION_TYNE;
+	bios_putstring("calling bios_ident\n");
+	bios_configure_memory();
+	displayinfo = *(arc_dsp_stat_t *)Bios_GetDisplayStatus(1);
+	cputype = ACER_PICA_61;
+}
+
+
+void
+bios_display_info(xpos, ypos, xsize, ysize)
+    int	*xpos;
+    int	*ypos;
+    int *xsize;
+    int *ysize;
+{
+	*xpos = displayinfo.CursorXPosition;
+	*ypos = displayinfo.CursorYPosition;
+	*xsize = displayinfo.CursorMaxXPosition;
+	*ysize = displayinfo.CursorMaxYPosition;
 }
diff --git a/sys/arch/arc/arc/arcbios.h b/sys/arch/arc/arc/arcbios.h
index 12be71da3f5..42134936152 100644
--- a/sys/arch/arc/arc/arcbios.h
+++ b/sys/arch/arc/arc/arcbios.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: arcbios.h,v 1.1 1996/09/06 04:57:51 imp Exp $	*/
+/*	$OpenBSD: arcbios.h,v 1.2 1996/09/14 15:58:12 pefo Exp $	*/
 /*-
  * Copyright (c) 1996 M. Warner Losh.  All rights reserved.
  *
@@ -137,9 +137,37 @@ typedef enum arc_status
 	arc_EROFS,			/* Read-only file system     */
 } arc_status_t;
 
-typedef caddr_t arc_mem_t; /* XXX */
+typedef enum {
+	ExeceptionBlock,
+	SystemParameterBlock,
+	FreeMemory,
+	BadMemory,
+	LoadedProgram,
+	FirmwareTemporary,
+	FirmwarePermanent,
+	FreeContigous
+} MEMORYTYPE;
+
+typedef struct arc_mem {
+	MEMORYTYPE	Type;		/* Memory chunk type */
+	u_int32_t	BasePage;	/* Page no, first page */
+	u_int32_t	PageCount;	/* Number of pages */
+} arc_mem_t;
+
 typedef caddr_t arc_time_t; /* XXX */
-typedef caddr_t arc_dsp_stat_t; /* XXX */
+
+typedef struct arc_dsp_stat {
+	u_int16_t	CursorXPosition;
+	u_int16_t	CursorYPosition;
+	u_int16_t	CursorMaxXPosition;
+	u_int16_t	CursorMaxYPosition;
+	u_char		ForegroundColor;
+	u_char		BackgroundColor;
+	u_char		HighIntensity;
+	u_char		Underscored;
+	u_char		ReverseVideo;
+} arc_dsp_stat_t;
+
 typedef caddr_t arc_dirent_t; /* XXX */
 typedef u_int32_t arc_open_mode_t; /* XXX */
 typedef u_int32_t arc_seek_mode_t; /* XXX */
diff --git a/sys/arch/arc/arc/clock.c b/sys/arch/arc/arc/clock.c
index 2639ac45602..11e5bf83de5 100644
--- a/sys/arch/arc/arc/clock.c
+++ b/sys/arch/arc/arc/clock.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: clock.c,v 1.1.1.1 1996/06/24 09:07:20 pefo Exp $	*/
+/*	$OpenBSD: clock.c,v 1.2 1996/09/14 15:58:13 pefo Exp $	*/
 /*
  * Copyright (c) 1988 University of Utah.
  * Copyright (c) 1992, 1993
@@ -39,7 +39,7 @@
  * from: Utah Hdr: clock.c 1.18 91/01/21
  *
  *	from: @(#)clock.c	8.1 (Berkeley) 6/10/93
- *      $Id: clock.c,v 1.1.1.1 1996/06/24 09:07:20 pefo Exp $
+ *      $Id: clock.c,v 1.2 1996/09/14 15:58:13 pefo Exp $
  */
 
 #include <sys/param.h>
@@ -52,20 +52,29 @@
 #include <arc/arc/clockvar.h>
 #include <arc/arc/arctype.h>
 
+#include <dev/isa/isavar.h>
+#include <arc/isa/isa_machdep.h>
 
 extern int cputype;	/* What kind of cpu we are running on */
 
+int	clock_started = 0;
+
 /* Definition of the driver for autoconfig. */
 static int	clockmatch __P((struct device *, void *, void *));
 static void	clockattach __P((struct device *, struct device *, void *));
 
-struct cfattach clock_ca = {
-	sizeof(struct clock_softc), clockmatch, clockattach
-};
 struct cfdriver clock_cd = {
 	NULL, "clock", DV_DULL, NULL, 0
 };
 
+struct cfattach clock_isa_ca = {
+	sizeof(struct clock_softc), clockmatch, clockattach
+};
+
+struct cfattach clock_pica_ca = {
+	sizeof(struct clock_softc), clockmatch, clockattach
+};
+
 void	mcclock_attach __P((struct device *, struct device *, void *));
 
 #define	SECMIN	((unsigned)60)			/* seconds per minute */
@@ -92,41 +101,56 @@ clockmatch(parent, cfdata, aux)
 		if (!BUS_MATCHNAME(ca, "dallas_rtc"))
 			return (0);
 
-		if (cf->cf_unit >= 1)
-			return (0);
+		break;
 
+	case DESKSTATION_TYNE:
 		break;
 
 	default:
 		panic("unknown CPU");
 	}
 
+	if (cf->cf_unit >= 1)
+		return (0);
+
 	return (1);
 }
 
+int
+clockintr(cf)
+	void *cf;
+{
+	if(clock_started)
+		hardclock((struct clockframe *)cf);
+	return(1);
+}
+
 static void
 clockattach(parent, self, aux)
 	struct device *parent;
 	struct device *self;
 	void *aux;
 {
+	struct isa_attach_args *ia = aux;
+
+	mcclock_attach(parent, self, aux);
 
 	switch (cputype) {
 
 	case ACER_PICA_61:
-		mcclock_attach(parent, self, aux);
+		BUS_INTR_ESTABLISH((struct confargs *)aux,
+			(intr_handler_t)hardclock, self);
+		break;
+
+	case DESKSTATION_TYNE:
+		(void)isa_intr_establish(ia->ia_ic,
+				0, 1, 3, clockintr, 0, "clock");
 		break;
 
 	default:
 		panic("clockattach: it didn't get here.  really.");
 	}
 
-
-	/*
-	 * establish the clock interrupt; it's a special case
-	 */
-	BUS_INTR_ESTABLISH((struct confargs *)aux, (intr_handler_t)hardclock, self);
-
 	printf("\n");
 }
 
@@ -171,6 +195,7 @@ cpu_initclocks()
 	 * Start the clock.
 	 */
 	(*csc->sc_init)(csc);
+	clock_started++;
 }
 
 /*
diff --git a/sys/arch/arc/arc/clock_mc.c b/sys/arch/arc/arc/clock_mc.c
index b3012f35f84..6bde0257a2b 100644
--- a/sys/arch/arc/arc/clock_mc.c
+++ b/sys/arch/arc/arc/clock_mc.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: clock_mc.c,v 1.2 1996/07/30 20:24:13 pefo Exp $	*/
+/*	$OpenBSD: clock_mc.c,v 1.3 1996/09/14 15:58:13 pefo Exp $	*/
 /*	$NetBSD: clock_mc.c,v 1.2 1995/06/28 04:30:30 cgd Exp $	*/
 
 /*
@@ -51,17 +51,23 @@
 #include <machine/autoconf.h>
 #include <machine/pio.h>
 
+#include <dev/isa/isareg.h>
+#include <dev/isa/isavar.h>
+#include <dev/ic/mc146818reg.h>
+
 #include <arc/arc/clockvar.h>
 #include <arc/arc/arctype.h>
 #include <arc/pica/pica.h>
-#include <dev/ic/mc146818reg.h>
+#include <arc/isa/isa_machdep.h>
+#include <arc/isa/timerreg.h>
 
 extern u_int	cputype;
 extern int	cpu_int_mask;
 
 void		mcclock_attach __P((struct device *parent,
 		    struct device *self, void *aux));
-static void	mcclock_init __P((struct clock_softc *csc));
+static void	mcclock_init_pica __P((struct clock_softc *csc));
+static void	mcclock_init_tyne __P((struct clock_softc *csc));
 static void	mcclock_get __P((struct clock_softc *csc, time_t base,
 		    struct tod_time *ct));
 static void	mcclock_set __P((struct clock_softc *csc,
@@ -79,12 +85,17 @@ struct mcclockdata {
 #define	mc146818_read(sc, reg)						\
 	    (*((struct mcclockdata *)sc->sc_data)->mc_read)(sc, reg)
 
-#if defined(ACER_PICA_61)
-static void	mc_write_arc __P((struct clock_softc *csc, u_int reg,
+/* Acer pica clock read code */
+static void	mc_write_pica __P((struct clock_softc *csc, u_int reg,
+		    u_int datum));
+static u_int	mc_read_pica __P((struct clock_softc *csc, u_int reg));
+static struct mcclockdata mcclockdata_pica = { mc_write_pica, mc_read_pica };
+
+/* Deskstation clock read code */
+static void	mc_write_tyne __P((struct clock_softc *csc, u_int reg,
 		    u_int datum));
-static u_int	mc_read_arc __P((struct clock_softc *csc, u_int reg));
-static struct mcclockdata mcclockdata_arc = { mc_write_arc, mc_read_arc };
-#endif
+static u_int	mc_read_tyne __P((struct clock_softc *csc, u_int reg));
+static struct mcclockdata mcclockdata_tyne = { mc_write_tyne, mc_read_tyne };
 
 void
 mcclock_attach(parent, self, aux)
@@ -99,7 +110,6 @@ mcclock_attach(parent, self, aux)
 
 	printf(": mc146818 or compatible");
 
-	csc->sc_init = mcclock_init;
 	csc->sc_get = mcclock_get;
 	csc->sc_set = mcclock_set;
 
@@ -110,8 +120,14 @@ mcclock_attach(parent, self, aux)
 		 * XXX should really allocate a new one and copy, or
 		 * something.  unlikely we'll have more than one...
 		 */
-		csc->sc_data = &mcclockdata_arc;
-		mcclockdata_arc.mc_addr = BUS_CVTADDR(ca);
+		csc->sc_init = mcclock_init_pica;
+		csc->sc_data = &mcclockdata_pica;
+		mcclockdata_tyne.mc_addr = BUS_CVTADDR(ca);
+		break;
+
+	case DESKSTATION_TYNE:
+		csc->sc_init = mcclock_init_tyne;
+		csc->sc_data = &mcclockdata_tyne;
 		break;
 
 	default:
@@ -124,7 +140,7 @@ mcclock_attach(parent, self, aux)
 }
 
 static void
-mcclock_init(csc)
+mcclock_init_pica(csc)
 	struct clock_softc *csc;
 {
 /* XXX Does not really belong here but for the moment we don't care */
@@ -133,6 +149,15 @@ mcclock_init(csc)
 	out32(R4030_SYS_EXT_IMASK, cpu_int_mask);
 }
 
+static void
+mcclock_init_tyne(csc)
+	struct clock_softc *csc;
+{
+	isa_outb(TIMER_MODE, TIMER_SEL0 | TIMER_16BIT | TIMER_RATEGEN);
+	isa_outb(TIMER_CNTR0, TIMER_DIV(hz) % 256);
+	isa_outb(TIMER_CNTR0, TIMER_DIV(hz) / 256);
+}
+
 /*
  * Get the time of day, based on the clock's value and/or the base value.
  */
@@ -171,7 +196,6 @@ mcclock_set(csc, ct)
 
 	s = splclock();
 	MC146818_GETTOD(csc, &regs);
-	splx(s);
 
 	regs[MC_SEC] = ct->sec;
 	regs[MC_MIN] = ct->min;
@@ -181,16 +205,12 @@ mcclock_set(csc, ct)
 	regs[MC_MONTH] = ct->mon;
 	regs[MC_YEAR] = ct->year;
 
-	s = splclock();
 	MC146818_PUTTOD(csc, &regs);
 	splx(s);
 }
 
-
-#if defined(ACER_PICA_61)
-
 static void
-mc_write_arc(csc, reg, datum)
+mc_write_pica(csc, reg, datum)
 	struct clock_softc *csc;
 	u_int reg, datum;
 {
@@ -202,7 +222,7 @@ mc_write_arc(csc, reg, datum)
 }
 
 static u_int
-mc_read_arc(csc, reg)
+mc_read_pica(csc, reg)
 	struct clock_softc *csc;
 	u_int reg;
 {
@@ -213,4 +233,24 @@ mc_read_arc(csc, reg)
 	i = inb(PICA_SYS_CLOCK);
 	return(i);
 }
-#endif /*ACER_PICA_61*/
+
+static void
+mc_write_tyne(csc, reg, datum)
+	struct clock_softc *csc;
+	u_int reg, datum;
+{
+	isa_outb(IO_RTC, reg);
+	isa_outb(IO_RTC+1, datum);
+}
+
+static u_int
+mc_read_tyne(csc, reg)
+	struct clock_softc *csc;
+	u_int reg;
+{
+	int i;
+
+	isa_outb(IO_RTC, reg);
+	i = isa_inb(IO_RTC+1);
+	return(i);
+}
diff --git a/sys/arch/arc/arc/cpu.c b/sys/arch/arc/arc/cpu.c
index cc24baf78d4..2b5270d27bf 100644
--- a/sys/arch/arc/arc/cpu.c
+++ b/sys/arch/arc/arc/cpu.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: cpu.c,v 1.2 1996/08/26 11:11:52 pefo Exp $	*/
+/*	$OpenBSD: cpu.c,v 1.3 1996/09/14 15:58:14 pefo Exp $	*/
 
 /*
  * Copyright (c) 1994, 1995 Carnegie-Mellon University.
@@ -101,7 +101,7 @@ cpuattach(parent, dev, aux)
 		printf("IDT R3000 derivate");
 		break;
 	case MIPS_R10000:
-		printf("MIPS R10000/T5 CPU");
+		printf("MIPS R10000 CPU");
 		break;
 	case MIPS_R4200:
 		printf("MIPS R4200 CPU (ICE)");
@@ -154,7 +154,7 @@ cpuattach(parent, dev, aux)
 		printf("FPC");
 		break;
 	case MIPS_R10010:
-		printf("MIPS R10000/T5 FPU");
+		printf("MIPS R10000 FPU");
 		break;
 	case MIPS_R4210:
 		printf("MIPS R4200 FPC (ICE)");
@@ -181,12 +181,12 @@ cpuattach(parent, dev, aux)
 	printf(" Rev. %d.%d", fpu_id.cpu.cp_majrev, fpu_id.cpu.cp_minrev);
 	printf("\n");
 
-	printf("        Primary cache size: %dkb Instruction, %dkb Data.",
+	printf("Primary cache size: %dkb Instruction, %dkb Data.",
 		CpuPrimaryInstCacheSize / 1024,
 		CpuPrimaryDataCacheSize / 1024);
 	if(CpuTwoWayCache)
-		printf("Two way set associative.\n");
+		printf(" Two way set associative.\n");
 	else
-		printf("Direct mapped.\n");
+		printf(" Direct mapped.\n");
 }
 
diff --git a/sys/arch/arc/arc/locore.S b/sys/arch/arc/arc/locore.S
index 60c04307fed..42ee574546f 100644
--- a/sys/arch/arc/arc/locore.S
+++ b/sys/arch/arc/arc/locore.S
@@ -1,4 +1,4 @@
-/*	$OpenBSD: locore.S,v 1.3 1996/08/26 11:11:53 pefo Exp $	*/
+/*	$OpenBSD: locore.S,v 1.4 1996/09/14 15:58:15 pefo Exp $	*/
 /*
  * Copyright (c) 1992, 1993
  *	The Regents of the University of California.  All rights reserved.
@@ -50,7 +50,7 @@
  *	v 1.1 89/07/10 14:27:41 nelson Exp  SPRITE (DECWRL)
  *
  *	from: @(#)locore.s	8.5 (Berkeley) 1/4/94
- *	$Id: locore.S,v 1.3 1996/08/26 11:11:53 pefo Exp $
+ *	$Id: locore.S,v 1.4 1996/09/14 15:58:15 pefo Exp $
  */
 
 /*
@@ -266,6 +266,95 @@ LEAF(fillw)
 	nop
 END(fillw)
 
+/*
+ *	Block I/O routines mainly used by I/O drivers.
+ *
+ *	Args as:	a0 = port
+ *			a1 = memory address
+ *			a2 = count
+ */
+LEAF(insb)
+	beq	a2, zero, 2f
+	addu	a2, a1
+1:
+	lbu	v0, 0(a0)
+	addiu	a1, 1
+	bne	a1, a2, 1b
+	sb	v0, -1(a1)
+2:
+	jr	ra
+	nop
+END(insb)
+
+LEAF(insw)
+	beq	a2, zero, 2f
+	addu	a2, a2
+	addu	a2, a1
+1:
+	lhu	v0, 0(a0)
+	addiu	a1, 2
+	bne	a1, a2, 1b
+	sh	v0, -2(a1)
+2:
+	jr	ra
+	nop
+END(insw)
+
+LEAF(insl)
+	beq	a2, zero, 2f
+	sll	a2, 2
+	addu	a2, a1
+1:
+	lw	v0, 0(a0)
+	addiu	a1, 4
+	bne	a1, a2, 1b
+	sw	v0, -4(a1)
+2:
+	jr	ra
+	nop
+END(insl)
+
+LEAF(outsb)
+	beq	a2, zero, 2f
+	addu	a2, a1
+1:
+	lbu	v0, 0(a1)
+	addiu	a1, 1
+	bne	a1, a2, 1b
+	sb	v0, 0(a0)
+2:
+	jr	ra
+	nop
+END(outsb)
+
+LEAF(outsw)
+	beq	a2, zero, 2f
+	addu	a2, a2
+	addu	a2, a1
+1:
+	lhu	v0, 0(a1)
+	addiu	a1, 2
+	bne	a1, a2, 1b
+	sh	v0, 0(a0)
+2:
+	jr	ra
+	nop
+END(outsw)
+
+LEAF(outsl)
+	beq	a2, zero, 2f
+	sll	a2, 2
+	addu	a2, a1
+1:
+	lw	v0, 0(a1)
+	addiu	a1, 4
+	bne	a1, a2, 1b
+	sw	v0, 0(a0)
+2:
+	jr	ra
+	nop
+END(outsl)
+
 /*
  * Copy a null terminated string from the user address space into
  * the kernel address space.
@@ -2489,7 +2578,7 @@ LEAF(R4K_ConfigCache)
 	addu	t2, t2, 16
 	sw	t2, CpuPrimaryInstCacheLSize
 	and	v1, 0xff00
-	li	t1, (MIPS_R4600 << 4)
+	li	t1, (MIPS_R4600 << 8)
 	li	t2, 1
 	bnel	v1, t1, 1f
 	li	t2, 0
@@ -2527,14 +2616,25 @@ LEAF(R4K_FlushCache)
 	addu	t1, t0, t1		# End address
 	subu	t1, t1, 128
 1:
+	bne	v0, zero, 2f
 	cache	0, 0(t0)
+
 	cache	0, 16(t0)
-	cache	0, 32(t0)
 	cache	0, 48(t0)
-	cache	0, 64(t0)
 	cache	0, 80(t0)
-	cache	0, 96(t0)
+	b	3f
 	cache	0, 112(t0)
+
+2:
+	cache	0, 8192+0(t0)
+	cache	0, 8192+32(t0)
+	cache	0, 8192+64(t0)
+	cache	0, 8192+96(t0)
+
+3:
+	cache	0, 32(t0)
+	cache	0, 64(t0)
+	cache	0, 96(t0)
 	bne	t0, t1, 1b
 	addu	t0, t0, 128
 
@@ -2545,14 +2645,25 @@ LEAF(R4K_FlushCache)
 	addu	t1, t0, t2		# End address
 	subu	t1, t1, 128
 1:
+	bne	v0, zero, 2f
 	cache	1, 0(t0)
+
 	cache	1, 16(t0)
-	cache	1, 32(t0)
 	cache	1, 48(t0)
-	cache	1, 64(t0)
 	cache	1, 80(t0)
-	cache	1, 96(t0)
+	b	3f
 	cache	1, 112(t0)
+
+2:
+	cache	1, 8192+0(t0)
+	cache	1, 8192+32(t0)
+	cache	1, 8192+64(t0)
+	cache	1, 8192+96(t0)
+
+3:
+	cache	1, 32(t0)
+	cache	1, 64(t0)
+	cache	1, 96(t0)
 	bne	t0, t1, 1b
 	addu	t0, t0, 128
 
@@ -2581,18 +2692,30 @@ END(R4K_FlushCache)
  *----------------------------------------------------------------------------
  */
 LEAF(R4K_FlushICache)
+	lw	v0, CpuTwoWayCache
 	addu	a1, 127		# Align
 	srl	a1, a1, 7	# Number of unrolled loops
 1:
-	cache	0, 0(a0)
+	bne	v0, zero, 2f
+	addu	a1, -1
+
 	cache	0, 16(a0)
-	cache	0, 32(a0)
 	cache	0, 48(a0)
-	cache	0, 64(a0)
 	cache	0, 80(a0)
-	cache	0, 96(a0)
+	b	3f
 	cache	0, 112(a0)
-	addu	a1, -1
+
+2:
+	cache	0, 8192+0(a0)
+	cache	0, 8192+32(a0)
+	cache	0, 8192+64(a0)
+	cache	0, 8192+96(a0)
+
+3:
+	cache	0, 0(a0)
+	cache	0, 32(a0)
+	cache	0, 64(a0)
+	cache	0, 96(a0)
 	bne	a1, zero, 1b
 	addu	a0, 128
 
@@ -2620,6 +2743,7 @@ END(R4K_FlushICache)
  *----------------------------------------------------------------------------
  */
 LEAF(R4K_FlushDCache)
+	lw	v0, CpuTwoWayCache
 	lw	a2, CpuPrimaryDataCacheSize
 	addiu	a2, -1
 	and	a0, a0, a2
@@ -2631,15 +2755,26 @@ LEAF(R4K_FlushDCache)
 	subu	a1, a1, a0
 	srl	a1, a1, 7	# Compute number of cache lines
 1:
-	cache	1, 0(a0)
+	bne	v0, zero, 2f
+	addu	a1, -1
+
 	cache	1, 16(a0)
-	cache	1, 32(a0)
 	cache	1, 48(a0)
-	cache	1, 64(a0)
 	cache	1, 80(a0)
-	cache	1, 96(a0)
+	b	3f
 	cache	1, 112(a0)
-	addu	a1, -1
+
+2:
+	cache	1, 8192+0(a0)
+	cache	1, 8192+32(a0)
+	cache	1, 8192+64(a0)
+	cache	1, 8192+96(a0)
+
+3:
+	cache	1, 0(a0)
+	cache	1, 32(a0)
+	cache	1, 64(a0)
+	cache	1, 96(a0)
 	bne	a1, zero, 1b
 	addu	a0, 128
 
@@ -2669,26 +2804,31 @@ END(R4K_FlushDCache)
  *----------------------------------------------------------------------------
  */
 LEAF(R4K_HitFlushDCache)
-	beq	a1, zero, 2f
+	lw	v0, CpuTwoWayCache
+	beq	a1, zero, 3f
 	addu	a1, 127		# Align
 	addu	a1, a1, a0
 	and	a0, a0, -128
 	subu	a1, a1, a0
 	srl	a1, a1, 7	# Compute number of cache lines
 1:
-	cache	0x15, 0(a0)
+	bne	v0, zero, 2f
+	addu	a1, -1
+
 	cache	0x15, 16(a0)
-	cache	0x15, 32(a0)
 	cache	0x15, 48(a0)
-	cache	0x15, 64(a0)
 	cache	0x15, 80(a0)
-	cache	0x15, 96(a0)
 	cache	0x15, 112(a0)
-	addu	a1, -1
+
+2:
+	cache	0x15, 0(a0)
+	cache	0x15, 32(a0)
+	cache	0x15, 64(a0)
+	cache	0x15, 96(a0)
 	bne	a1, zero, 1b
 	addu	a0, 128
 
-2:
+3:
 	j	ra
 	nop
 END(R4K_HitFlushDCache)
@@ -2713,6 +2853,7 @@ END(R4K_HitFlushDCache)
 LEAF(R4K_InvalidateDCache)
 	addu	a1, a1, a0			# compute ending address
 1:
+	cache	0x11,8194(a0)
 	addu	a0, a0, 4
 	bne	a0, a1, 1b
 	cache	0x11,-4(a0)
diff --git a/sys/arch/arc/arc/machdep.c b/sys/arch/arc/arc/machdep.c
index bc16dfda214..f20db586d2f 100644
--- a/sys/arch/arc/arc/machdep.c
+++ b/sys/arch/arc/arc/machdep.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: machdep.c,v 1.11 1996/09/06 04:57:52 imp Exp $	*/
+/*	$OpenBSD: machdep.c,v 1.12 1996/09/14 15:58:16 pefo Exp $	*/
 /*
  * Copyright (c) 1988 University of Utah.
  * Copyright (c) 1992, 1993
@@ -38,7 +38,7 @@
  * SUCH DAMAGE.
  *
  *	from: @(#)machdep.c	8.3 (Berkeley) 1/12/94
- *      $Id: machdep.c,v 1.11 1996/09/06 04:57:52 imp Exp $
+ *      $Id: machdep.c,v 1.12 1996/09/14 15:58:16 pefo Exp $
  */
 
 /* from: Utah Hdr: machdep.c 1.63 91/04/24 */
@@ -123,10 +123,7 @@ int	bufpages = BUFPAGES;
 int	bufpages = 0;
 #endif
 int	msgbufmapped = 0;	/* set when safe to use msgbuf */
-int	maxmem;			/* max memory per process */
 int	physmem;		/* max supported memory, changes to actual */
-int	memcfg;			/* memory config register */
-int	brdcfg;			/* motherboard config register */
 int	cpucfg;			/* Value of processor config register */
 int	cputype;		/* Mother board type */
 int	ncpu = 1;		/* At least one cpu in the system */
@@ -174,7 +171,7 @@ mips_init(argc, argv, code)
 	register char *cp;
 	register int i;
 	register unsigned firstaddr;
-	register caddr_t v;
+	register caddr_t sysend;
 	caddr_t start;
 	struct tlb tlb;
 	extern char edata[], end[];
@@ -182,11 +179,11 @@ mips_init(argc, argv, code)
 	extern char MachException[], MachExceptionEnd[];
 
 	/* clear the BSS segment in OpenBSD code */
-	v = (caddr_t)mips_round_page(end);
-	bzero(edata, v - edata);
+	sysend = (caddr_t)mips_round_page(end);
+	bzero(edata, sysend - edata);
 
-    /* Initialize the CPU type */
-    bios_ident();
+	/* Initialize the CPU type */
+	bios_ident();
 
 	/*
 	 * Get config register now as mapped from BIOS since we are
@@ -198,13 +195,9 @@ mips_init(argc, argv, code)
 	case ACER_PICA_61:	/* ALI PICA 61 and MAGNUM is almost the */
 	case MAGNUM:		/* Same kind of hardware. NEC goes here too */
 		if(cputype == MAGNUM) {
-			/* XXX this is likely broken */
-			memcfg = in32(R4030_SYS_CONFIG);
 			strcpy(cpu_model, "MIPS Magnum");
 		}
 		else {
-			memcfg = in32(PICA_MEMORY_SIZE_REG);
-			brdcfg = in32(PICA_CONFIG_REG);
 			strcpy(cpu_model, "Acer Pica-61");
 		}
 		isa_io_base = PICA_V_ISA_IO;
@@ -220,57 +213,22 @@ mips_init(argc, argv, code)
 		Mach_spltty = Mach_spl2;
 		Mach_splstatclock = Mach_spl3;
 #endif
-
-		/*
-		 * Size is determined from the memory config register.
-		 *  d0-d2 = bank 0 size (sim id)
-		 *  d3-d5 = bank 1 size
-		 *  d6 = bus width. (doubels memory size)
-		 */
-		if((memcfg & 7) <= 5)
-			physmem = 2097152 << (memcfg & 7);
-		if(((memcfg >> 3) & 7) <= 5)
-			physmem += 2097152 << ((memcfg >> 3) & 7);
-
-		if((memcfg & 0x40) == 0)
-			physmem += physmem;	/* 128 bit config */
-
-		mem_layout[0].mem_start = 0x00100000;
-		mem_layout[0].mem_size = physmem - mem_layout[0].mem_start;
-		mem_layout[1].mem_start = 0x00020000;
-		mem_layout[1].mem_size =  0x00100000 - mem_layout[1].mem_start;
-		mem_layout[2].mem_start = 0x0;
 		break;
 
 	case DESKSTATION_RPC44:
 		strcpy(cpu_model, "Deskstation rPC44");
-
-		/*XXX Need to find out how to size mem */
-		physmem = 1024 * 1024 * 32;
-		mem_layout[0].mem_start = 0x00100000;
-		mem_layout[0].mem_size = physmem - mem_layout[0].mem_start;
-		mem_layout[1].mem_start = 0x00008000;
-		mem_layout[1].mem_size = 0x000a0000 - mem_layout[1].mem_start;
-		mem_layout[2].mem_start = 0x0;
+		isa_io_base = TYNE_V_ISA_IO;		/*XXX*/
+		isa_mem_base = TYNE_V_ISA_MEM;		/*XXX*/
 		break;
 
 	case DESKSTATION_TYNE:
 		strcpy(cpu_model, "Deskstation Tyne");
 		isa_io_base = TYNE_V_ISA_IO;
 		isa_mem_base = TYNE_V_ISA_MEM;
-
-		/*XXX Need to find out how to size mem */
-		physmem = 1024 * 1024 * 16;
-		mem_layout[0].mem_start = 0x00100000;
-		mem_layout[0].mem_size = physmem - mem_layout[0].mem_start;
-		mem_layout[1].mem_start = 0x00020000;
-		mem_layout[1].mem_size =  0x00100000 - mem_layout[1].mem_start;
-		mem_layout[2].mem_start = 0x0;
 		break;
 
 	default:
-/*XXX printf doesn't work here .... use bios?? */
-		printf("kernel not configured for systype 0x%x\n", i);
+		bios_putstring("kernel not configured for this system\n");
 		boot(RB_HALT | RB_NOSYNC);
 	}
 	physmem = btoc(physmem);
@@ -324,7 +282,7 @@ mips_init(argc, argv, code)
 	 */
 	if (boothowto & RB_MINIROOT) {
 		boothowto |= RB_DFLTROOT;
-		v += mfs_initminiroot(v);
+		sysend += mfs_initminiroot(sysend);
 	}
 #endif
 
@@ -350,11 +308,11 @@ mips_init(argc, argv, code)
 	/*
 	 * Init mapping for u page(s) for proc[0], pm_tlbpid 1.
 	 */
-	v = (caddr_t)((int)v+3 & -4);
-	start = v;
-	curproc->p_addr = proc0paddr = (struct user *)v;
+	sysend = (caddr_t)((int)sysend + 3 & -4);
+	start = sysend;
+	curproc->p_addr = proc0paddr = (struct user *)sysend;
 	curproc->p_md.md_regs = proc0paddr->u_pcb.pcb_regs;
-	firstaddr = CACHED_TO_PHYS(v);
+	firstaddr = CACHED_TO_PHYS(sysend);
 	for (i = 0; i < UPAGES; i+=2) {
 		tlb.tlb_mask = PG_SIZE_4K;
 		tlb.tlb_hi = vad_to_vpn((UADDR + (i << PGSHIFT))) | 1;
@@ -365,8 +323,8 @@ mips_init(argc, argv, code)
 		R4K_TLBWriteIndexed(i,&tlb);
 		firstaddr += NBPG * 2;
 	}
-	v += UPAGES * NBPG;
-	v = (caddr_t)((int)v+3 & -4);
+	sysend += UPAGES * NBPG;
+	sysend = (caddr_t)((int)sysend+3 & -4);
 	R4K_SetPID(1);
 
 	/*
@@ -374,19 +332,19 @@ mips_init(argc, argv, code)
 	 * init mapping for u page(s), pm_tlbpid 0
 	 * This could be used for an idle process.
 	 */
-	nullproc.p_addr = (struct user *)v;
+	nullproc.p_addr = (struct user *)sysend;
 	nullproc.p_md.md_regs = nullproc.p_addr->u_pcb.pcb_regs;
 	bcopy("nullproc", nullproc.p_comm, sizeof("nullproc"));
-	firstaddr = CACHED_TO_PHYS(v);
+	firstaddr = CACHED_TO_PHYS(sysend);
 	for (i = 0; i < UPAGES; i+=2) {
 		nullproc.p_md.md_upte[i] = vad_to_pfn(firstaddr) | PG_V | PG_M | PG_CACHED;
 		nullproc.p_md.md_upte[i+1] = vad_to_pfn(firstaddr + NBPG) | PG_V | PG_M | PG_CACHED;
 		firstaddr += NBPG * 2;
 	}
-	v += UPAGES * NBPG;
+	sysend += UPAGES * NBPG;
 
 	/* clear pages for u areas */
-	bzero(start, v - start);
+	bzero(start, sysend - start);
 
 	/*
 	 * Copy down exception vector code.
@@ -405,33 +363,28 @@ mips_init(argc, argv, code)
 	R4K_FlushCache();
 
 	/*
-	 * Find out how much memory is available.
+	 * Initialize error message buffer.
 	 */
-	/* Already know from above!!! */
-	maxmem = physmem;
-
-	/*
-	 * Initialize error message buffer (at end of core).
-	 */
-	maxmem -= btoc(sizeof (struct msgbuf));
-	msgbufp = (struct msgbuf *)(PHYS_TO_CACHED(maxmem << PGSHIFT));
+	msgbufp = (struct msgbuf *)(sysend);
+	sysend = (caddr_t)(sysend + (sizeof(struct msgbuf)));
 	msgbufmapped = 1;
 
 	/*
 	 * Allocate space for system data structures.
-	 * The first available kernel virtual address is in "v".
-	 * As pages of kernel virtual memory are allocated, "v" is incremented.
+	 * The first available kernel virtual address is in "sysend".
+	 * As pages of kernel virtual memory are allocated, "sysend"
+	 * is incremented.
 	 *
 	 * These data structures are allocated here instead of cpu_startup()
 	 * because physical memory is directly addressable. We don't have
 	 * to map these into virtual address space.
 	 */
-	start = v;
+	start = sysend;
 
 #define	valloc(name, type, num) \
-	    (name) = (type *)v; v = (caddr_t)((name)+(num))
+	    (name) = (type *)sysend; sysend = (caddr_t)((name)+(num))
 #define	valloclim(name, type, num, lim) \
-	    (name) = (type *)v; v = (caddr_t)((lim) = ((name)+(num)))
+	    (name) = (type *)sysend; sysend = (caddr_t)((lim) = ((name)+(num)))
 #ifdef REAL_CLISTS
 	valloc(cfree, struct cblock, nclist);
 #endif
@@ -478,12 +431,12 @@ mips_init(argc, argv, code)
 	/*
 	 * Clear allocated memory.
 	 */
-	bzero(start, v - start);
+	bzero(start, sysend - start);
 
 	/*
 	 * Initialize the virtual memory system.
 	 */
-	pmap_bootstrap((vm_offset_t)v);
+	pmap_bootstrap((vm_offset_t)sysend);
 }
 
 void
@@ -527,7 +480,7 @@ tlb_init_tyne()
 {
 	struct tlb tlb;
 
-	tlb.tlb_mask = PG_SIZE_64K;
+	tlb.tlb_mask = PG_SIZE_256K;
 	tlb.tlb_hi = vad_to_vpn(TYNE_V_BOUNCE);
 	tlb.tlb_lo0 = vad_to_pfn64(TYNE_P_BOUNCE) | PG_IOPAGE;
 	tlb.tlb_lo1 = PG_G;
@@ -544,6 +497,13 @@ tlb_init_tyne()
 	tlb.tlb_lo0 = vad_to_pfn64(TYNE_P_ISA_MEM) | PG_IOPAGE;
 	tlb.tlb_lo1 = PG_G;
 	R4K_TLBWriteIndexed(3, &tlb);
+
+	tlb.tlb_mask = PG_SIZE_4K;
+	tlb.tlb_hi = vad_to_vpn(0xe3000000);
+	tlb.tlb_lo0 = 0x03ffc000 | PG_IOPAGE;
+	tlb.tlb_lo1 = PG_G;
+	R4K_TLBWriteIndexed(4, &tlb);
+
 }
 
 /*
@@ -560,6 +520,7 @@ consinit()
 		return;
 	initted = 1;
 	cninit();
+mdbpanic();
 }
 
 /*
@@ -1073,13 +1034,16 @@ microtime(tvp)
 initcpu()
 {
 
-	/*
-	 * Disable all interrupts. New masks will be set up
-	 * during system configuration
-	 */
-	out16(PICA_SYS_LB_IE,0x000);
-	out32(R4030_SYS_EXT_IMASK, 0x00);
-
+	switch(cputype) {
+	case ACER_PICA_61:
+		/*
+		 * Disable all interrupts. New masks will be set up
+		 * during system configuration
+		 */
+		out16(PICA_SYS_LB_IE,0x000);
+		out32(R4030_SYS_EXT_IMASK, 0x00);
+		break;
+	}
 }
 
 /*
diff --git a/sys/arch/arc/arc/mainbus.c b/sys/arch/arc/arc/mainbus.c
index fd8e827283e..bfce5f99e2a 100644
--- a/sys/arch/arc/arc/mainbus.c
+++ b/sys/arch/arc/arc/mainbus.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mainbus.c,v 1.1.1.1 1996/06/24 09:07:21 pefo Exp $	*/
+/*	$OpenBSD: mainbus.c,v 1.2 1996/09/14 15:58:17 pefo Exp $	*/
 /*	$NetBSD: mainbus.c,v 1.3 1995/06/28 02:45:10 cgd Exp $	*/
 
 /*
@@ -116,7 +116,8 @@ mbattach(parent, self, aux)
 		nca.ca_bus = &sc->sc_bus;
 		config_found(self, &nca, mbprint);
 	}
-	if (cputype == ACER_PICA_61) {
+	if (cputype == ACER_PICA_61 ||
+	    cputype == DESKSTATION_TYNE) {
 		/* we have an ISA bus! */
 		nca.ca_name = "isabr";
 		nca.ca_slot = 0;
diff --git a/sys/arch/arc/arc/pmap.c b/sys/arch/arc/arc/pmap.c
index 04a32737908..9fcfa6bba58 100644
--- a/sys/arch/arc/arc/pmap.c
+++ b/sys/arch/arc/arc/pmap.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: pmap.c,v 1.3 1996/08/26 11:11:56 pefo Exp $	*/
+/*	$OpenBSD: pmap.c,v 1.4 1996/09/14 15:58:17 pefo Exp $	*/
 /* 
  * Copyright (c) 1992, 1993
  *	The Regents of the University of California.  All rights reserved.
@@ -36,7 +36,7 @@
  * SUCH DAMAGE.
  *
  *	from: @(#)pmap.c	8.4 (Berkeley) 1/26/94
- *      $Id: pmap.c,v 1.3 1996/08/26 11:11:56 pefo Exp $
+ *      $Id: pmap.c,v 1.4 1996/09/14 15:58:17 pefo Exp $
  */
 
 /*
@@ -166,6 +166,8 @@ struct {
 #define PDB_WIRING	0x4000
 #define PDB_PVDUMP	0x8000
 
+extern int _ftext[];
+extern int _end[];
 int pmapdebug = 0x0;
 
 #endif /* DEBUG */
@@ -194,10 +196,13 @@ void
 pmap_bootstrap(firstaddr)
 	vm_offset_t firstaddr;
 {
-	register int i, n;
+	register int i, n, nextpage;
 	register pt_entry_t *spte;
+	struct physseg *pseg;
 	vm_offset_t start = firstaddr;
-	extern int maxmem, physmem;
+	extern int physmem;
+
+/*XXX*/	char pbuf[100];
 
 #define	valloc(name, type, num) \
 	    (name) = (type *)firstaddr; firstaddr = (vm_offset_t)((name)+(num))
@@ -224,13 +229,13 @@ pmap_bootstrap(firstaddr)
 	 * phys_start and phys_end but its better to use kseg0 addresses
 	 * rather than kernel virtual addresses mapped through the TLB.
 	 */
-	i = maxmem - mips_btop(CACHED_TO_PHYS(firstaddr));
 #ifdef MACHINE_NONCONTIG
-	for( n = 1; n < MAXMEMSEGS; n++) {
-		if(mem_layout[n].mem_start == 0)
-			break;
+	i = 0;
+	for( n = 0; n < MAXMEMSEGS; n++) {
 		i += mips_btop(mem_layout[n].mem_size);
 	}
+#else
+	i = physmem - mips_btop(CACHED_TO_PHYS(firstaddr));
 #endif /*MACHINE_NONCONTIG*/
 	valloc(pv_table, struct pv_entry, i);
 
@@ -241,27 +246,47 @@ pmap_bootstrap(firstaddr)
 	bzero((caddr_t)start, firstaddr - start);
 
 	avail_start = CACHED_TO_PHYS(firstaddr);
-	avail_end = mips_ptob(maxmem);
+	avail_end = mips_ptob(physmem);
 
 #ifdef MACHINE_NONCONTIG
-	avail_next = avail_start;
-	avail_remaining = mips_btop(avail_end - avail_start);
-	physsegs[0].start = avail_start;
-	physsegs[0].end = avail_end;
-	physsegs[0].first_page = 0;
+	avail_remaining = 0;
+	nextpage = 0;
 
 	/*
-	 * Now reclaim the "lost" memory areas. Skip the first one
-         * as that is the segment where the os was loaded.
+	 * Now set up memory areas. Be careful to remove areas used
+         * for the OS and for exception vector stuff.
          */
-	for( i = 1; i < MAXMEMSEGS; i++) {
-		if((physsegs[i].start = mem_layout[i].mem_start) == 0)
-			break;
-		physsegs[i].end = physsegs[i].start + mem_layout[i].mem_size;
-		physsegs[i].first_page = physsegs[i-1].first_page +
-		    (physsegs[i-1].end - physsegs[i-1].start) / NBPG;
-		avail_remaining += (physsegs[i].end - physsegs[i].start) / NBPG;
+	pseg = &physsegs[0];
+
+	for( i = 0; i < MAXMEMSEGS; i++) {
+		/* Adjust for the kernel exeption vectors and sys data area */
+		if(mem_layout[i].mem_start < 0x8000) { 
+			if((mem_layout[i].mem_start + mem_layout[i].mem_size) < 0x8000)
+				continue;	/* To small skip it */
+			mem_layout[i].mem_size -= 0x8000 - mem_layout[i].mem_start;
+			mem_layout[i].mem_start = 0x8000;  /* Adjust to be above vec's */
+		}
+		/* Adjust for the kernel expansion area (bufs etc) */
+		if((mem_layout[i].mem_start + mem_layout[i].mem_size > CACHED_TO_PHYS(_ftext)) && 
+		   (mem_layout[i].mem_start < CACHED_TO_PHYS(avail_start))) { 
+			mem_layout[i].mem_size -= CACHED_TO_PHYS(avail_start) - mem_layout[i].mem_start;
+			mem_layout[i].mem_start = CACHED_TO_PHYS(avail_start);
+		}
+
+		if(mem_layout[i].mem_size == 0)
+			continue;
+
+		pseg->start = mem_layout[i].mem_start;
+		pseg->end = pseg->start + mem_layout[i].mem_size;
+		pseg->first_page = nextpage;
+		nextpage += (pseg->end - pseg->start) / NBPG;
+		avail_remaining += (pseg->end - pseg->start) / NBPG;
+/*XXX*/	sprintf(pbuf,"segment = %d start 0x%x end 0x%x avail %d page %d\n", i, pseg->start, pseg->end, avail_remaining, nextpage); bios_putstring(pbuf);
+		pseg++;
 	}
+
+	avail_next = physsegs[0].start;
+
 #endif /* MACHINE_NONCONTIG */
 
 	virtual_avail = VM_MIN_KERNEL_ADDRESS;
@@ -326,7 +351,7 @@ pmap_init(phys_start, phys_end)
 {
 
 #ifdef DEBUG
-	if (pmapdebug & (PDB_FOLLOW|PDB_INIT))
+	if (1 || pmapdebug & (PDB_FOLLOW|PDB_INIT))
 #ifdef MACHINE_NONCONTIG
 		printf("pmap_init(%lx, %lx)\n", avail_start, avail_end);
 #else
diff --git a/sys/arch/arc/arc/trap.c b/sys/arch/arc/arc/trap.c
index 615004f9935..8c60becc1c7 100644
--- a/sys/arch/arc/arc/trap.c
+++ b/sys/arch/arc/arc/trap.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: trap.c,v 1.5 1996/09/02 11:33:24 pefo Exp $	*/
+/*	$OpenBSD: trap.c,v 1.6 1996/09/14 15:58:18 pefo Exp $	*/
 /*
  * Copyright (c) 1988 University of Utah.
  * Copyright (c) 1992, 1993
@@ -39,7 +39,7 @@
  * from: Utah Hdr: trap.c 1.32 91/04/06
  *
  *	from: @(#)trap.c	8.5 (Berkeley) 1/11/94
- *      $Id: trap.c,v 1.5 1996/09/02 11:33:24 pefo Exp $
+ *      $Id: trap.c,v 1.6 1996/09/14 15:58:18 pefo Exp $
  */
 
 #include <sys/param.h>
@@ -335,8 +335,7 @@ trap(statusReg, causeReg, vadr, pc, args)
 		}
 		entry |= PG_M;
 		pte->pt_entry = entry;
-		vadr = (vadr & ~PGOFSET) |
-			(pmap->pm_tlbpid << VMTLB_PID_SHIFT);
+		vadr = (vadr & ~PGOFSET) | (pmap->pm_tlbpid << VMTLB_PID_SHIFT);
 		R4K_TLBUpdate(vadr, entry);
 		pa = pfn_to_vad(entry);
 #ifdef ATTR
@@ -840,6 +839,9 @@ interrupt(statusReg, causeReg, pc, what, args)
 
 	cnt.v_intr++;
 	mask = causeReg & statusReg;	/* pending interrupts & enable mask */
+	cf.pc = pc;
+	cf.sr = statusReg;
+	cf.cr = causeReg;
 
 	/*
 	 *  Check off all enabled interrupts. Called interrupt routine
@@ -847,7 +849,7 @@ interrupt(statusReg, causeReg, pc, what, args)
 	 */
 	for(i = 0; i < 5; i++) {
 		if(cpu_int_tab[i].int_mask & mask) {
-			causeReg &= (*cpu_int_tab[i].int_hand)(mask, pc, statusReg, causeReg);
+			causeReg &= (*cpu_int_tab[i].int_hand)(mask, &cf);
 		}
 	}
 	/*
diff --git a/sys/arch/arc/conf/GENERIC b/sys/arch/arc/conf/GENERIC
index 2904f35b042..1ad298a0ee7 100644
--- a/sys/arch/arc/conf/GENERIC
+++ b/sys/arch/arc/conf/GENERIC
@@ -1,72 +1,78 @@
+#	$OpenBSD: GENERIC,v 1.4 1996/09/14 15:58:19 pefo Exp $
 #
-#	Generic configuration file for MIPS R4400 PICA system
+#	Generic configuration file for MIPS R4x00 ARC Systems
 #
 
 machine		arc
 
-maxusers	8
+maxusers	32
 
 # Need to set locally
-options		TIMEZONE="8*60"		# minutes west of GMT (for)
-options		DST=1			# use daylight savings rules
+options		TIMEZONE=0		# minutes west of GMT (for)
+options		DST=0			# use daylight savings rules
 
 # Standard system options
 options		SWAPPAGER		# swap pager (anonymous and swap space)
 options		VNODEPAGER		# vnode pager (mapped files)
 options		DEVPAGER		# device pager (mapped devices)
+
 options		DIAGNOSTIC		# extra kernel debugging checks
 options		DEBUG			# extra kernel debugging support
-options		"COMPAT_43"		# compatibility with 4.3BSD binaries
-#options	KTRACE			# system call tracing support
-options		"NKMEMCLUSTERS=1024"	# 4K pages in kernel malloc pool
-#options	KGDB			# support for kernel gdb
-#options	"KGDBRATE=19200"	# kernel gdb port rate (default 9600)
-#options	"KGDBDEV=15*256+0"	# device for kernel gdb
+options		COMPAT_43		# compatibility with 4.3BSD binaries
+options 	KTRACE			# system call tracing support
 
 # System V options
 options		SYSVMSG		# System V-like message queues
 options		SYSVSEM		# System V-like semaphores
 options		SYSVSHM		# System V-like memory sharing
 options		SHMMAXPGS=1024	# 1024 pages is the default
-options		NATIVE_ELF
+options		NATIVE_ELF	# Arc systems uses ELF as native format
 
 # Filesystem options
+options		CD9660		# ISO 9660 + Rock Ridge file system
+options		FDESC		# user file descriptor filesystem (/dev/fd)
 options		FIFO		# POSIX fifo support (in all filesystems)
 options		FFS,QUOTA	# fast filesystem with user and group quotas
+options		KERNFS		# kernel data-structure filesystem
+#options 	LFS		# Log-based filesystem (still experimental)
 options		MFS		# memory-based filesystem
+options		MSDOSFS		# Ability to read write MS-Dos filsystem
 options		NFSCLIENT	# Sun NFS-compatible filesystem (client)
 options		NFSSERVER	# Sun NFS-compatible filesystem (server)
-options		KERNFS		# kernel data-structure filesystem
-options		MSDOSFS		# Ability to read write MS-Dos filsystem
-options		CD9660		# ISO 9660 + Rock Ridge file system
-options		FDESC		# user file descriptor filesystem
-#options	UMAPFS		# uid/gid remapping filesystem
-#options	NULLFS		# null layer filesystem
-#options	LFS		# Log-based filesystem (still experimental)
-#options	PORTAL		# portal filesystem (still experimental)
+options 	NULLFS		# null layer filesystem
+options 	PORTAL		# portal filesystem (still experimental)
+options 	UMAPFS		# uid/gid remapping filesystem
 
 # Networking options
-options		INET		# Internet protocols
-#options		"TCP_COMPAT_42"	# compatibility with 4.2BSD TCP/IP
-options		GATEWAY		# IP packet forwarding
-#options	MULTICAST	# Multicast support
-#options	MROUTING	# Multicast routing support
-#options	ISO		# OSI networking
-#options	TPIP
-#options	EON
+options 	INET		# Internet protocols
+#options 	TCP_COMPAT_42	# compatibility with 4.2BSD TCP/IP
+#options 	GATEWAY		# IP packet forwarding
+#options 	MULTICAST	# Multicast support
+#options 	MROUTING	# Multicast routing support
+#options 	ISO		# OSI networking
+#options 	TPIP
+#options 	EON
 
-config		bsd swap generic
+# Special options
+options 	MACHINE_NONCONTIG # Support noncontigous memory.
 
+# Specify storage configuration
+config		bsd	swap generic
+
+#
+# Definition of system
+#
 mainbus0	at root
 cpu*		at mainbus0
 
 pica*		at mainbus0
+
 clock0		at pica?
 pc0		at pica?
 pms0		at pica?
 ace0		at pica?
 ace1		at pica?
-lpt0		at pica?
+lpr0		at pica?
 sn0		at pica?
 
 fdc0		at pica?
@@ -82,13 +88,34 @@ ch*		at scsibus? target ? lun ?
 ss*		at scsibus? target ? lun ?
 uk*		at scsibus? target ? lun ?
 
-isabr*		at mainbus0
+#
+#	ISA Bus.
+#
+isabr*	at mainbus0
+
+isa*	at isabr?
+
+clock0	at isa?
+
+pc0     at isa? port 0x60 irq 1         # generic PC console device
+ace0	at isa? port 0x3f8 irq 4
+ace1	at isa? port 0x2f8 irq 3
+ace2	at isa? port 0x3e8 irq 4
+ace3	at isa? port 0x2e8 irq 3
+
+lpt0	at isa? port 0x378 irq 7
+ep0	at isa? port ? irq ?           # 3C509 ethernet cards
+#ed0     at isa? port 0x280 iomem 0xd0000 irq 9  # WD/SMC, 3C503, and NE[12]000
+
+btl0		at isa? port 0x330 irq ? drq ?
+scsibus* 	at btl?
 
-isa*		at isabr?
 
 pseudo-device	sl		 2	# serial-line IP ports
 pseudo-device	ppp		 2	# serial-line PPP ports
+pseudo-device	tun		 2	# network tunneling over tty
 pseudo-device	pty		64	# pseudo ptys
-pseudo-device	bpfilter	16	# packet filter ports
-pseudo-device	loop
-pseudo-device	vnd		4	# virtual disk
+pseudo-device	tb		 1	# tablet line discipline
+pseudo-device	bpfilter	 8	# packet filter ports
+pseudo-device	loop		 1	# network loopback
+pseudo-device	vnd		 4	# paging to files
diff --git a/sys/arch/arc/conf/files.arc b/sys/arch/arc/conf/files.arc
index d7b2d12754b..66d183f3b32 100644
--- a/sys/arch/arc/conf/files.arc
+++ b/sys/arch/arc/conf/files.arc
@@ -1,8 +1,8 @@
-#	$OpenBSD: files.arc,v 1.3 1996/09/06 04:57:50 imp Exp $
+#	$OpenBSD: files.arc,v 1.4 1996/09/14 15:58:20 pefo Exp $
 #
 # maxpartitions must be first item in files.${ARCH}
 #
-maxpartitions 8
+maxpartitions 16
 
 maxusers 2 8 64
 
@@ -53,12 +53,6 @@ device	pica {}
 attach	pica at mainbus			# { slot = -1, offset = -1 }
 file	arch/arc/pica/picabus.c		pica
 
-#	Real time clock, must have one..
-device	clock
-attach	clock at pica
-file	arch/arc/arc/clock.c		clock
-file	arch/arc/arc/clock_mc.c		clock
-
 #	Ethernet chip
 device	sn
 attach	sn at pica: ifnet, ether
@@ -74,13 +68,6 @@ device	asc: scsi
 attach	asc at pica
 file	arch/arc/dev/asc.c		asc	needs-count
 
-#	Console driver on PC-style graphics
-device	pc: tty
-attach	pc at pica
-device	pms: tty
-attach	pms at pica
-file	arch/arc/dev/pccons.c		pc	needs-count
-
 #	Floppy disk controller
 device	fdc {drive = -1}
 attach	fdc at pica
@@ -106,6 +93,21 @@ define  pci {}				# XXX dummy decl...
 
 include	"../../../dev/isa/files.isa"
 
+#	Real time clock, must have one..
+device	clock
+attach	clock at pica with clock_pica
+attach	clock at isa with clock_isa
+file	arch/arc/arc/clock.c	clock & (clock_isa | clock_pica) needs-flag
+file	arch/arc/arc/clock_mc.c	clock & (clock_isa | clock_pica) needs-flag
+
+#	Console driver on PC-style graphics
+device	pc: tty
+attach	pc at pica with pc_pica
+attach	pc at isa with pc_isa
+device	pms: tty
+attach	pms at pica
+file	arch/arc/dev/pccons.c		pc & (pc_pica | pc_isa)	needs-flag
+
 #	Serial driver for both ISA and LOCAL bus.
 device  ace: tty
 attach  ace at isa with ace_isa
@@ -119,6 +121,19 @@ attach  lpr at isa with lpr_isa
 attach	lpr at pica with lpr_pica
 file	arch/arc/dev/lpr.c		lpr & (lpr_isa | lpr_pica) needs-flag
 
+# BusLogic BT-445C VLB SCSI Controller. Special on local bus.
+device  btl: scsi
+attach  btl at isa
+file    arch/arc/isa/btl.c                    btl needs-count
+
+# National Semiconductor DS8390/WD83C690-based boards
+# (WD/SMC 80x3 family, SMC Ultra [8216], 3Com 3C503, NE[12]000, and clones)
+# XXX conflicts with other ports; can't be in files.isa
+device  ed: ether, ifnet
+attach  ed at isa with ed_isa
+attach  ed at pcmcia with ed_pcmcia
+file    dev/isa/if_ed.c                 ed & (ed_isa | ed_pcmcia) needs-flag
+
 #
 
 file	dev/cons.c
diff --git a/sys/arch/arc/dev/ace.c b/sys/arch/arc/dev/ace.c
index b9d91d0f5be..6820a2e9b39 100644
--- a/sys/arch/arc/dev/ace.c
+++ b/sys/arch/arc/dev/ace.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ace.c,v 1.5 1996/09/02 09:01:49 deraadt Exp $	*/
+/*	$OpenBSD: ace.c,v 1.6 1996/09/14 15:58:21 pefo Exp $	*/
 /*	$NetBSD: com.c,v 1.82.4.1 1996/06/02 09:08:00 mrg Exp $	*/
 
 /*-
@@ -57,6 +57,7 @@
 #include <sys/types.h>
 #include <sys/device.h>
 
+#include <arc/arc/arctype.h>
 #include <machine/bus.h>
 #include <machine/intr.h>
 
@@ -1677,10 +1678,16 @@ acecnprobe(cp)
 	struct consdev *cp;
 {
 	/* XXX NEEDS TO BE FIXED XXX */
+	extern int cputype;
 	bus_chipset_tag_t bc = 0;
 	bus_io_handle_t ioh;
 	int found;
 
+	cp->cn_pri = CN_DEAD;
+
+	if(cputype != ACER_PICA_61)
+		return;
+
 	if (bus_io_map(bc, CONADDR, COM_NPORTS, &ioh)) {
 		cp->cn_pri = CN_DEAD;
 		return;
@@ -1688,7 +1695,6 @@ acecnprobe(cp)
 	ioh = CONADDR;
 	found = comprobe1(bc, ioh, CONADDR);
 	if (!found) {
-		cp->cn_pri = CN_DEAD;
 		return;
 	}
 
diff --git a/sys/arch/arc/dev/lpr.c b/sys/arch/arc/dev/lpr.c
index 75f8f99f9d6..7f84a7b96b6 100644
--- a/sys/arch/arc/dev/lpr.c
+++ b/sys/arch/arc/dev/lpr.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: lpr.c,v 1.1 1996/06/24 20:10:34 pefo Exp $ */
+/*	$OpenBSD: lpr.c,v 1.2 1996/09/14 15:58:21 pefo Exp $ */
 
 /*
  * Copyright (c) 1993, 1994 Charles Hannum.
@@ -118,7 +118,7 @@ int lprintr __P((void *));
 #if NLPR_ISA
 int lpr_isa_probe __P((struct device *, void *, void *));
 void lpr_isa_attach __P((struct device *, struct device *, void *));
-struct cfattach lpr_ca = {
+struct cfattach lpr_isa_ca = {
 	sizeof(struct lpr_softc), lpr_isa_probe, lpr_isa_attach
 };
 #endif
diff --git a/sys/arch/arc/dev/pccons.c b/sys/arch/arc/dev/pccons.c
index 82d48e84ac6..0bd14436d4b 100644
--- a/sys/arch/arc/dev/pccons.c
+++ b/sys/arch/arc/dev/pccons.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: pccons.c,v 1.6 1996/09/05 08:04:16 pefo Exp $	*/
+/*	$OpenBSD: pccons.c,v 1.7 1996/09/14 15:58:22 pefo Exp $	*/
 /*	$NetBSD: pccons.c,v 1.89 1995/05/04 19:35:20 cgd Exp $	*/
 
 /*-
@@ -76,6 +76,7 @@
 #include <arc/dti/desktech.h>
 
 #include <dev/isa/isavar.h>
+#include <arc/isa/isa_machdep.h>
 #include <machine/kbdreg.h>
 
 extern int cputype;
@@ -147,13 +148,17 @@ int pcprobe __P((struct device *, void *, void *));
 void pcattach __P((struct device *, struct device *, void *));
 int pcintr __P((void *));
 
-struct cfattach pc_ca = {
-	 sizeof(struct pc_softc), pcprobe, pcattach
-};
 struct cfdriver pc_cd = {
 	NULL, "pc", DV_TTY, NULL, 0
 };
 
+struct cfattach pc_pica_ca = {
+	 sizeof(struct pc_softc), pcprobe, pcattach
+};
+
+struct cfattach pc_isa_ca = {
+	 sizeof(struct pc_softc), pcprobe, pcattach
+};
 int pmsprobe __P((struct device *, void *, void *));
 void pmsattach __P((struct device *, struct device *, void *));
 int pmsintr __P((void *));
@@ -167,16 +172,15 @@ struct cfdriver pms_cd = {
 
 #define	PMSUNIT(dev)	(minor(dev))
 
-#define	COL		80
-#define	ROW		25
 #define	CHR		2
 
 static unsigned int addr_6845;
-static unsigned int mono_base;
-static unsigned int mono_buf;
-static unsigned int cga_base;
-static unsigned int cga_buf;
-static unsigned int kbd_base;
+static unsigned int mono_base = 0x3b4;
+static unsigned int mono_buf = 0xb0000;
+static unsigned int cga_base = 0x3d4;
+static unsigned int cga_buf = 0xb8000;
+static unsigned int kbd_cmdp = 0x64;
+static unsigned int kbd_datap = 0x60;
 
 char *sget __P((void));
 void sput __P((u_char *, int));
@@ -196,7 +200,7 @@ kbd_wait_output()
 	u_int i;
 
 	for (i = 100000; i; i--)
-		if ((inb(kbd_base + KBSTATP) & KBS_IBF) == 0) {
+		if ((inb(kbd_cmdp) & KBS_IBF) == 0) {
 			KBD_DELAY;
 			return 1;
 		}
@@ -209,7 +213,7 @@ kbd_wait_input()
 	u_int i;
 
 	for (i = 100000; i; i--)
-		if ((inb(kbd_base + KBSTATP) & KBS_DIB) != 0) {
+		if ((inb(kbd_cmdp) & KBS_DIB) != 0) {
 			KBD_DELAY;
 			return 1;
 		}
@@ -221,12 +225,12 @@ kbd_flush_input()
 {
 	u_char c;
 
-	while (c = inb(kbd_base + KBSTATP) & 0x03)
+	while (c = inb(kbd_cmdp) & 0x03)
 		if ((c & KBS_DIB) == KBS_DIB) {
 			/* XXX - delay is needed to prevent some keyboards from
 			   wedging when the system boots */
 			delay(6);
-			(void) inb(kbd_base + KBDATAP);
+			(void) inb(kbd_datap);
 		}
 }
 
@@ -241,10 +245,10 @@ kbc_get8042cmd()
 
 	if (!kbd_wait_output())
 		return -1;
-	outb(kbd_base + KBCMDP, K_RDCMDBYTE);
+	outb(kbd_cmdp, K_RDCMDBYTE);
 	if (!kbd_wait_input())
 		return -1;
-	return inb(kbd_base + KBDATAP);
+	return inb(kbd_datap);
 }
 #endif
 
@@ -258,10 +262,10 @@ kbc_put8042cmd(val)
 
 	if (!kbd_wait_output())
 		return 0;
-	outb(kbd_base + KBCMDP, K_LDCMDBYTE);
+	outb(kbd_cmdp, K_LDCMDBYTE);
 	if (!kbd_wait_output())
 		return 0;
-	outb(kbd_base + KBOUTP, val);
+	outb(kbd_datap, val);
 	return 1;
 }
 
@@ -279,7 +283,7 @@ kbd_cmd(val, polling)
 	if(!polling) {
 		i = spltty();
 		if(kb_oq_get == kb_oq_put) {
-			outb(kbd_base + KBOUTP, val);
+			outb(kbd_datap, val);
 		}
 		kb_oq[kb_oq_put] = val;
 		kb_oq_put = (kb_oq_put + 1) & 7;
@@ -289,13 +293,13 @@ kbd_cmd(val, polling)
 	else do {
 		if (!kbd_wait_output())
 			return 0;
-		outb(kbd_base + KBOUTP, val);
+		outb(kbd_datap, val);
 		for (i = 100000; i; i--) {
-			if (inb(kbd_base + KBSTATP) & KBS_DIB) {
+			if (inb(kbd_cmdp) & KBS_DIB) {
 				register u_char c;
 
 				KBD_DELAY;
-				c = inb(kbd_base + KBDATAP);
+				c = inb(kbd_datap);
 				if (c == KBR_ACK || c == KBR_ECHO) {
 					return 1;
 				}
@@ -416,8 +420,10 @@ pcprobe(parent, cfdata, aux)
 	u_int i;
 
 	/* Make shure we're looking for this type of device */
-	if(!BUS_MATCHNAME(ca, "pc"))
-		return(0);
+	if(!strcmp((parent)->dv_cfdata->cf_driver->cd_name, "pica")) {
+		if(!BUS_MATCHNAME(ca, "pc"))
+			return(0);
+	}
 
 	/* Enable interrupts and keyboard, etc. */
 	if (!kbc_put8042cmd(CMDBYTE)) {
@@ -434,11 +440,11 @@ pcprobe(parent, cfdata, aux)
 		goto lose;
 	}
 	for (i = 600000; i; i--)
-		if ((inb(kbd_base + KBSTATP) & KBS_DIB) != 0) {
+		if ((inb(kbd_cmdp) & KBS_DIB) != 0) {
 			KBD_DELAY;
 			break;
 		}
-	if (i == 0 || inb(kbd_base + KBDATAP) != KBR_RSTDONE) {
+	if (i == 0 || inb(kbd_datap) != KBR_RSTDONE) {
 		printf("pcprobe: reset error %d\n", 2);
 		goto lose;
 	}
@@ -497,12 +503,21 @@ pcattach(parent, self, aux)
 	void *aux;
 {
 	struct confargs *ca = aux;
+	struct isa_attach_args *ia = aux;
 	struct pc_softc *sc = (void *)self;
 
 	printf(": %s\n", vs.color ? "color" : "mono");
 	do_async_update(1);
 
-	BUS_INTR_ESTABLISH(ca, pcintr, (void *)(long)sc);
+	switch(cputype) {
+	case ACER_PICA_61:
+		BUS_INTR_ESTABLISH(ca, pcintr, (void *)(long)sc);
+		break;
+	case DESKSTATION_TYNE:
+		isa_intr_establish(ia->ia_ic, ia->ia_irq, 1,
+			2, pcintr, sc, sc->sc_dev.dv_xname);	/*XXX ick */
+		break;
+	}
 }
 
 int
@@ -612,7 +627,7 @@ pcintr(arg)
 	register struct tty *tp = sc->sc_tty;
 	u_char *cp;
 
-	if ((inb(kbd_base + KBSTATP) & KBS_DIB) == 0)
+	if ((inb(kbd_cmdp) & KBS_DIB) == 0)
 		return 0;
 	if (polling)
 		return 1;
@@ -624,7 +639,7 @@ pcintr(arg)
 			do
 				(*linesw[tp->t_line].l_rint)(*cp++, tp);
 			while (*cp);
-	} while (inb(kbd_base + KBSTATP) & KBS_DIB);
+	} while (inb(kbd_cmdp) & KBS_DIB);
 	return 1;
 }
 
@@ -788,21 +803,24 @@ pccninit(cp)
 	switch(cputype) {
 
 	case ACER_PICA_61:
-		mono_base = PICA_MONO_BASE;
-		mono_buf = PICA_MONO_BUF;
-		cga_base = PICA_CGA_BASE;
-		cga_buf = PICA_CGA_BUF;
-		kbd_base = PICA_SYS_KBD;
+		mono_base += PICA_V_LOCAL_VIDEO_CTRL;
+		mono_buf += PICA_V_LOCAL_VIDEO;
+		cga_base += PICA_V_LOCAL_VIDEO_CTRL;
+		cga_buf += PICA_V_LOCAL_VIDEO;
+		kbd_cmdp = PICA_SYS_KBD + 0x61;
+		kbd_datap = PICA_SYS_KBD + 0x60;
 		break;
 
 	case DESKSTATION_TYNE:
-		mono_base = PICA_MONO_BASE;
-		mono_buf = PICA_MONO_BUF;
-		cga_base = PICA_CGA_BASE;
-		cga_buf = PICA_CGA_BUF;
-		kbd_base = PICA_SYS_KBD;
+		mono_base += TYNE_V_ISA_IO;
+		mono_buf += TYNE_V_ISA_MEM;
+		cga_base += TYNE_V_ISA_IO;
+		cga_buf += TYNE_V_ISA_MEM;
+		kbd_cmdp = TYNE_V_ISA_IO + 0x64;
+		kbd_datap = TYNE_V_ISA_IO + 0x60;
 		outb(TYNE_V_ISA_IO + 0x3ce, 6);		/* Correct video mode */
-		outb(TYNE_V_ISA_IO + 0x3cf, 0xe);
+		outb(TYNE_V_ISA_IO + 0x3cf, inb(TYNE_V_ISA_IO + 0x3cf) | 0xc);
+		kbc_put8042cmd(CMDBYTE);		/* Want XT codes.. */
 		break;
 	}
 }
@@ -834,7 +852,7 @@ pccngetc(dev)
 
 	do {
 		/* wait for byte */
-		while ((inb(kbd_base + KBSTATP) & KBS_DIB) == 0);
+		while ((inb(kbd_cmdp) & KBS_DIB) == 0);
 		/* see if it's worthwhile */
 		cp = sget();
 	} while (!cp);
@@ -937,15 +955,15 @@ sput(cp, n)
 		return;
 
 	if (crtat == 0) {
-		u_short volatile *cp;
+		volatile u_short *cp;
 		u_short was;
 		unsigned cursorat;
 
-		cp = (u_short *)cga_buf;
+		cp = (volatile u_short *)cga_buf;
 		was = *cp;
-		*cp = (u_short) 0xA55A;
+		*cp = (volatile u_short) 0xA55A;
 		if (*cp != 0xA55A) {
-			cp = (u_short *)mono_buf;
+			cp = (volatile u_short *)mono_buf;
 			addr_6845 = mono_base;
 			vs.color = 0;
 		} else {
@@ -954,26 +972,22 @@ sput(cp, n)
 			vs.color = 1;
 		}
 
-		/* Extract cursor location */
-		outb(addr_6845, 14);
-		cursorat = inb(addr_6845+1) << 8;
-		outb(addr_6845, 15);
-		cursorat |= inb(addr_6845+1);
-
 #ifdef FAT_CURSOR
 		cursor_shape = 0x0012;
 #else
 		get_cursor_shape();
 #endif
 
-		Crtat = (u_short *)cp;
-		crtat = (u_short *)(cp + cursorat);
-
-		vs.ncol = COL;
-		vs.nrow = ROW;
-		vs.nchr = COL * ROW;
+		bios_display_info(&vs.col, &vs.row, &vs.ncol, &vs.nrow);
+		vs.nchr = vs.ncol * vs.nrow;
+		vs.col--;
+		vs.row--;
+		cursorat = vs.ncol * vs.row + vs.col;
 		vs.at = FG_LIGHTGREY | BG_BLACK;
 
+		Crtat = (u_short *)cp;
+		crtat = Crtat + cursorat;
+
 		if (vs.color == 0)
 			vs.so_at = FG_BLACK | BG_LIGHTGREY;
 		else
@@ -1002,8 +1016,8 @@ sput(cp, n)
 			vs.col += inccol;
 		}
 		maybe_scroll:
-			if (vs.col >= COL) {
-				vs.col -= COL;
+			if (vs.col >= vs.ncol) {
+				vs.col -= vs.ncol;
 				scroll = 1;
 			}
 			break;
@@ -1013,7 +1027,7 @@ sput(cp, n)
 				break;
 			--crtat;
 			if (--vs.col < 0)
-				vs.col += COL;	/* non-destructive backspace */
+				vs.col += vs.ncol;	/* non-destructive backspace */
 			break;
 
 		case '\r':
@@ -1506,17 +1520,17 @@ sget()
 
 top:
 	KBD_DELAY;
-	dt = inb(kbd_base + KBDATAP);
+	dt = inb(kbd_datap);
 
 	switch (dt) {
 	case KBR_ACK: case KBR_ECHO:
 		kb_oq_get = (kb_oq_get + 1) & 7;
 		if(kb_oq_get != kb_oq_put) {
-			outb(kbd_base + KBOUTP, kb_oq[kb_oq_get]);
+			outb(kbd_datap, kb_oq[kb_oq_get]);
 		}
 		goto loop;
 	case KBR_RESEND:
-		outb(kbd_base + KBOUTP, kb_oq[kb_oq_get]);
+		outb(kbd_datap, kb_oq[kb_oq_get]);
 		goto loop;
 	}
 
@@ -1719,7 +1733,7 @@ printf("keycode %d\n",dt);
 
 	extended = 0;
 loop:
-	if ((inb(kbd_base + KBSTATP) & KBS_DIB) == 0)
+	if ((inb(kbd_cmdp) & KBS_DIB) == 0)
 		return 0;
 	goto top;
 }
@@ -1765,7 +1779,6 @@ pc_xmode_off()
 #endif
 	async_update();
 }
-/*	$NetBSD: pms.c,v 1.21 1995/04/18 02:25:18 mycroft Exp $	*/
 
 #include <machine/mouse.h>
 
@@ -1802,9 +1815,9 @@ pms_dev_cmd(value)
 	u_char value;
 {
 	kbd_flush_input();
-	outb(kbd_base + KBCMDP, 0xd4);
+	outb(kbd_cmdp, 0xd4);
 	kbd_flush_input();
-	outb(kbd_base + KBDATAP, value);
+	outb(kbd_datap, value);
 }
 
 static inline void
@@ -1812,7 +1825,7 @@ pms_aux_cmd(value)
 	u_char value;
 {
 	kbd_flush_input();
-	outb(kbd_base + KBCMDP, value);
+	outb(kbd_cmdp, value);
 }
 
 static inline void
@@ -1820,9 +1833,9 @@ pms_pit_cmd(value)
 	u_char value;
 {
 	kbd_flush_input();
-	outb(kbd_base + KBCMDP, 0x60);
+	outb(kbd_cmdp, 0x60);
 	kbd_flush_input();
-	outb(kbd_base + KBDATAP, value);
+	outb(kbd_datap, value);
 }
 
 int
@@ -1840,7 +1853,7 @@ pmsprobe(parent, probe, aux)
 	pms_dev_cmd(KBC_RESET);
 	pms_aux_cmd(PMS_MAGIC_1);
 	delay(10000);
-	x = inb(kbd_base + KBDATAP);
+	x = inb(kbd_datap);
 	pms_pit_cmd(PMS_INT_DISABLE);
 	if (x & 0x04)
 		return 0;
@@ -2048,20 +2061,20 @@ pmsintr(arg)
 	switch (state) {
 
 	case 0:
-		buttons = inb(kbd_base + KBDATAP);
+		buttons = inb(kbd_datap);
 		if ((buttons & 0xc0) == 0)
 			++state;
 		break;
 
 	case 1:
-		dx = inb(kbd_base + KBDATAP);
+		dx = inb(kbd_datap);
 		/* Bounding at -127 avoids a bug in XFree86. */
 		dx = (dx == -128) ? -127 : dx;
 		++state;
 		break;
 
 	case 2:
-		dy = inb(kbd_base + KBDATAP);
+		dy = inb(kbd_datap);
 		dy = (dy == -128) ? -127 : dy;
 		state = 0;
 
@@ -2122,4 +2135,5 @@ pmsselect(dev, rw, p)
 	splx(s);
 
 	return ret;
+
 }
diff --git a/sys/arch/arc/dti/desktech.h b/sys/arch/arc/dti/desktech.h
index 71bca68edfe..41b0f713f13 100644
--- a/sys/arch/arc/dti/desktech.h
+++ b/sys/arch/arc/dti/desktech.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: desktech.h,v 1.1 1996/09/05 08:01:15 pefo Exp $ */
+/*	$OpenBSD: desktech.h,v 1.2 1996/09/14 15:58:23 pefo Exp $ */
 
 /*
  * Copyright (c) 1996 Per Fogelstrom
@@ -53,25 +53,16 @@
  * I/O map
  */
 
-#define	TYNE_P_BOUNCE		(0x0900000000LL)	/* Dma bounce buffer */
-#define	TYNE_V_BOUNCE		0xe0000000
-#define	TYNE_S_BOUNCE		0x00010000
-
-#define	TYNE_P_ISA_IO		(0x0100800000LL)	/* ISA I/O control */
-#define	TYNE_V_ISA_IO		0xe2000000
-#define	TYNE_S_ISA_IO		0x01000000
+#define	TYNE_P_ISA_IO		(0x0900000000LL)	/* ISA I/O Control */
+#define	TYNE_V_ISA_IO		0xe0000000
+#define	TYNE_S_ISA_IO		0x00010000
 
 #define	TYNE_P_ISA_MEM		(0x0100000000LL)	/* ISA Memory control */
-#define	TYNE_V_ISA_MEM		0xe3000000
+#define	TYNE_V_ISA_MEM		0xe1000000
 #define	TYNE_S_ISA_MEM		0x01000000
 
-/*
- *  Addresses used by various display drivers.
- */
-#define TYNE_MONO_BASE	(TYNE_V_ISA_IO + 0x3B4)
-#define TYNE_MONO_BUF	(TYNE_V_ISA_MEM + 0xB0000)
-#define TYNE_CGA_BASE	(TYNE_V_ISA_IO + 0x3D4)
-#define TYNE_CGA_BUF	(TYNE_V_ISA_MEM + 0xB8000)
-#define	TYNE_SYS_KBD	(TYNE_V_ISA_IO)
+#define	TYNE_P_BOUNCE		(0x0100800000LL)	/* Dma bounce buffer */
+#define	TYNE_V_BOUNCE		0xe2000000
+#define	TYNE_S_BOUNCE		0x00020000
 
 #endif	/* _DESKTECH_H_ */
diff --git a/sys/arch/arc/dti/desktechbus.c b/sys/arch/arc/dti/desktechbus.c
index 8cc4ed6f259..6a7aa4dbedc 100644
--- a/sys/arch/arc/dti/desktechbus.c
+++ b/sys/arch/arc/dti/desktechbus.c
@@ -1,32 +1,35 @@
-/*	$OpenBSD: desktechbus.c,v 1.1 1996/09/05 08:01:16 pefo Exp $	*/
-/*	$NetBSD: tc.c,v 1.2 1995/03/08 00:39:05 cgd Exp $	*/
+/*	$OpenBSD: desktechbus.c,v 1.2 1996/09/14 15:58:24 pefo Exp $ */
 
 /*
- * Copyright (c) 1994, 1995 Carnegie-Mellon University.
- * All rights reserved.
- *
- * Author: Chris G. Demetriou
- * Author: Per Fogelstrom. (Mips R4x00)
- * 
- * Permission to use, copy, modify and distribute this software and
- * its documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- * 
- * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 
- * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 
- * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ * Copyright (c) 1996 Per Fogelstrom
  * 
- * Carnegie Mellon requests users of this software to return to
+ * 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 under OpenBSD by
+ *	Per Fogelstrom.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
  *
- *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
- *  School of Computer Science
- *  Carnegie Mellon University
- *  Pittsburgh PA 15213-3890
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
  *
- * any improvements or extensions that they make and grant Carnegie the
- * rights to redistribute these changes.
  */
 
 #include <sys/param.h>
@@ -36,107 +39,107 @@
 #include <machine/pio.h>
 #include <machine/autoconf.h>
 
-#include <arc/pica/pica.h>
 #include <arc/arc/arctype.h>
+#include <arc/dti/desktech.h>
 
-struct pica_softc {
+struct dti_softc {
 	struct	device sc_dv;
 	struct	abus sc_bus;
-	struct	pica_dev *sc_devs;
+	struct	dti_dev *sc_devs;
 };
 
 /* Definition of the driver for autoconfig. */
-int	picamatch(struct device *, void *, void *);
-void	picaattach(struct device *, struct device *, void *);
-int	picaprint(void *, char *);
+int	dtimatch(struct device *, void *, void *);
+void	dtiattach(struct device *, struct device *, void *);
+int	dtiprint(void *, char *);
 
-struct cfattach pica_ca = {
-	sizeof(struct pica_softc), picamatch, picaattach
+struct cfattach dti_ca = {
+	sizeof(struct dti_softc), dtimatch, dtiattach
 };
-struct cfdriver pica_cd = {
-	NULL, "pica", DV_DULL, NULL, 0
+struct cfdriver dti_cd = {
+	NULL, "dti", DV_DULL, NULL, 0
 };
 
-void	pica_intr_establish __P((struct confargs *, int (*)(void *), void *));
-void	pica_intr_disestablish __P((struct confargs *));
-caddr_t	pica_cvtaddr __P((struct confargs *));
-int	pica_matchname __P((struct confargs *, char *));
-int	pica_iointr __P((void *));
-int	pica_clkintr __P((unsigned, unsigned, unsigned, unsigned));
+void	dti_intr_establish __P((struct confargs *, int (*)(void *), void *));
+void	dti_intr_disestablish __P((struct confargs *));
+caddr_t	dti_cvtaddr __P((struct confargs *));
+int	dti_matchname __P((struct confargs *, char *));
+int	dti_iointr __P((void *));
+int	dti_clkintr __P((unsigned, unsigned, unsigned, unsigned));
 
 extern int cputype;
 
 /*
  *  Interrupt dispatch table.
  */
-struct pica_int_desc int_table[] = {
-	{0, pica_intrnull, (void *)NULL, 0 },  /*  0 */
-	{0, pica_intrnull, (void *)NULL, 0 },  /*  1 */
-	{0, pica_intrnull, (void *)NULL, 0 },  /*  2 */
-	{0, pica_intrnull, (void *)NULL, 0 },  /*  3 */
-	{0, pica_intrnull, (void *)NULL, 0 },  /*  4 */
-	{0, pica_intrnull, (void *)NULL, 0 },  /*  5 */
-	{0, pica_intrnull, (void *)NULL, 0 },  /*  6 */
-	{0, pica_intrnull, (void *)NULL, 0 },  /*  7 */
-	{0, pica_intrnull, (void *)NULL, 0 },  /*  8 */
-	{0, pica_intrnull, (void *)NULL, 0 },  /*  9 */
-	{0, pica_intrnull, (void *)NULL, 0 },  /* 10 */
-	{0, pica_intrnull, (void *)NULL, 0 },  /* 11 */
-	{0, pica_intrnull, (void *)NULL, 0 },  /* 12 */
-	{0, pica_intrnull, (void *)NULL, 0 },  /* 13 */
-	{0, pica_intrnull, (void *)NULL, 0 },  /* 14 */
-	{0, pica_intrnull, (void *)NULL, 0 },  /* 15 */
+struct dti_int_desc int_table[] = {
+	{0, dti_intrnull, (void *)NULL, 0 },  /*  0 */
+	{0, dti_intrnull, (void *)NULL, 0 },  /*  1 */
+	{0, dti_intrnull, (void *)NULL, 0 },  /*  2 */
+	{0, dti_intrnull, (void *)NULL, 0 },  /*  3 */
+	{0, dti_intrnull, (void *)NULL, 0 },  /*  4 */
+	{0, dti_intrnull, (void *)NULL, 0 },  /*  5 */
+	{0, dti_intrnull, (void *)NULL, 0 },  /*  6 */
+	{0, dti_intrnull, (void *)NULL, 0 },  /*  7 */
+	{0, dti_intrnull, (void *)NULL, 0 },  /*  8 */
+	{0, dti_intrnull, (void *)NULL, 0 },  /*  9 */
+	{0, dti_intrnull, (void *)NULL, 0 },  /* 10 */
+	{0, dti_intrnull, (void *)NULL, 0 },  /* 11 */
+	{0, dti_intrnull, (void *)NULL, 0 },  /* 12 */
+	{0, dti_intrnull, (void *)NULL, 0 },  /* 13 */
+	{0, dti_intrnull, (void *)NULL, 0 },  /* 14 */
+	{0, dti_intrnull, (void *)NULL, 0 },  /* 15 */
 };
 
-struct pica_dev {
+struct dti_dev {
 	struct confargs	ps_ca;
 	u_int		ps_mask;
 	intr_handler_t	ps_handler;
 	void 		*ps_base;
 };
 #ifdef ACER_PICA_61
-struct pica_dev acer_pica_61_cpu[] = {
+struct dti_dev acer_dti_61_cpu[] = {
 	{{ "dallas_rtc",0, 0, },
-	   0,			 pica_intrnull, (void *)PICA_SYS_CLOCK, },
+	   0,			 dti_intrnull, (void *)PICA_SYS_CLOCK, },
 	{{ "lpr",	1, 0, },
-	   PICA_SYS_LB_IE_PAR1,	 pica_intrnull, (void *)PICA_SYS_PAR1, },
+	   PICA_SYS_LB_IE_PAR1,	 dti_intrnull, (void *)PICA_SYS_PAR1, },
 	{{ "fdc",	2, 0, },
-	   PICA_SYS_LB_IE_FLOPPY,pica_intrnull, (void *)PICA_SYS_FLOPPY, },
+	   PICA_SYS_LB_IE_FLOPPY,dti_intrnull, (void *)PICA_SYS_FLOPPY, },
 	{{ NULL,	3, NULL, },
-	   0, pica_intrnull, (void *)NULL, },
+	   0, dti_intrnull, (void *)NULL, },
 	{{ NULL,	4, NULL, },
-	   0, pica_intrnull, (void *)NULL, },
+	   0, dti_intrnull, (void *)NULL, },
 	{{ "sonic",	5, 0, },
-	   PICA_SYS_LB_IE_SONIC, pica_intrnull, (void *)PICA_SYS_SONIC, },
+	   PICA_SYS_LB_IE_SONIC, dti_intrnull, (void *)PICA_SYS_SONIC, },
 	{{ "asc",	6, 0, },
-	   PICA_SYS_LB_IE_SCSI,  pica_intrnull, (void *)PICA_SYS_SCSI, },
+	   PICA_SYS_LB_IE_SCSI,  dti_intrnull, (void *)PICA_SYS_SCSI, },
 	{{ "pc",	7, 0, },
-	   PICA_SYS_LB_IE_KBD,	 pica_intrnull, (void *)PICA_SYS_KBD, },
+	   PICA_SYS_LB_IE_KBD,	 dti_intrnull, (void *)PICA_SYS_KBD, },
 	{{ "pms",	8, NULL, },
-	   PICA_SYS_LB_IE_MOUSE, pica_intrnull, (void *)PICA_SYS_KBD, },
+	   PICA_SYS_LB_IE_MOUSE, dti_intrnull, (void *)PICA_SYS_KBD, },
 	{{ "com",	9, 0, },
-	   PICA_SYS_LB_IE_COM1,	 pica_intrnull, (void *)PICA_SYS_COM1, },
+	   PICA_SYS_LB_IE_COM1,	 dti_intrnull, (void *)PICA_SYS_COM1, },
 	{{ "com",      10, 0, },
-	   PICA_SYS_LB_IE_COM2,	 pica_intrnull, (void *)PICA_SYS_COM2, },
+	   PICA_SYS_LB_IE_COM2,	 dti_intrnull, (void *)PICA_SYS_COM2, },
 	{{ NULL,       -1, NULL, },
 	   0, NULL, (void *)NULL, },
 };
 #endif
 
-struct pica_dev *pica_cpu_devs[] = {
+struct dti_dev *dti_cpu_devs[] = {
         NULL,                   /* Unused */
 #ifdef ACER_PICA_61
-        acer_pica_61_cpu,       /* Acer PICA */
+        acer_dti_61_cpu,       /* Acer PICA */
 #else
 	NULL,
 #endif
 };
-int npica_cpu_devs = sizeof pica_cpu_devs / sizeof pica_cpu_devs[0];
+int ndti_cpu_devs = sizeof dti_cpu_devs / sizeof dti_cpu_devs[0];
 
 int local_int_mask = 0;	/* Local interrupt enable mask */
 
 int
-picamatch(parent, cfdata, aux)
+dtimatch(parent, cfdata, aux)
 	struct device *parent;
 	void *cfdata;
 	void *aux;
@@ -145,44 +148,44 @@ picamatch(parent, cfdata, aux)
 	struct confargs *ca = aux;
 
         /* Make sure that we're looking for a PICA. */
-        if (strcmp(ca->ca_name, pica_cd.cd_name) != 0)
+        if (strcmp(ca->ca_name, dti_cd.cd_name) != 0)
                 return (0);
 
         /* Make sure that unit exists. */
 	if (cf->cf_unit != 0 ||
-	    cputype > npica_cpu_devs || pica_cpu_devs[cputype] == NULL)
+	    cputype > ndti_cpu_devs || dti_cpu_devs[cputype] == NULL)
 		return (0);
 
 	return (1);
 }
 
 void
-picaattach(parent, self, aux)
+dtiattach(parent, self, aux)
 	struct device *parent;
 	struct device *self;
 	void *aux;
 {
-	struct pica_softc *sc = (struct pica_softc *)self;
+	struct dti_softc *sc = (struct dti_softc *)self;
 	struct confargs *nca;
 	int i;
 
 	printf("\n");
 
 	/* keep our CPU device description handy */
-	sc->sc_devs = pica_cpu_devs[cputype];
+	sc->sc_devs = dti_cpu_devs[cputype];
 
 	/* set up interrupt handlers */
-	set_intr(INT_MASK_1, pica_iointr, 2);
+	set_intr(INT_MASK_1, dti_iointr, 2);
 
 	sc->sc_bus.ab_dv = (struct device *)sc;
 	sc->sc_bus.ab_type = BUS_PICA;
-	sc->sc_bus.ab_intr_establish = pica_intr_establish;
-	sc->sc_bus.ab_intr_disestablish = pica_intr_disestablish;
-	sc->sc_bus.ab_cvtaddr = pica_cvtaddr;
-	sc->sc_bus.ab_matchname = pica_matchname;
+	sc->sc_bus.ab_intr_establish = dti_intr_establish;
+	sc->sc_bus.ab_intr_disestablish = dti_intr_disestablish;
+	sc->sc_bus.ab_cvtaddr = dti_cvtaddr;
+	sc->sc_bus.ab_matchname = dti_matchname;
 
 	/* Initialize PICA Dma */
-	picaDmaInit();
+	dtiDmaInit();
 
 	/* Try to configure each PICA attached device */
 	for (i = 0; sc->sc_devs[i].ps_ca.ca_slot >= 0; i++) {
@@ -194,12 +197,12 @@ picaattach(parent, self, aux)
 		nca->ca_bus = &sc->sc_bus;
 
 		/* Tell the autoconfig machinery we've found the hardware. */
-		config_found(self, nca, picaprint);
+		config_found(self, nca, dtiprint);
 	}
 }
 
 int
-picaprint(aux, pnp)
+dtiprint(aux, pnp)
 	void *aux;
 	char *pnp;
 {
@@ -212,32 +215,32 @@ picaprint(aux, pnp)
 }
 
 caddr_t
-pica_cvtaddr(ca)
+dti_cvtaddr(ca)
 	struct confargs *ca;
 {
-	struct pica_softc *sc = pica_cd.cd_devs[0];
+	struct dti_softc *sc = dti_cd.cd_devs[0];
 
 	return(sc->sc_devs[ca->ca_slot].ps_base + ca->ca_offset);
 
 }
 
 void
-pica_intr_establish(ca, handler, val)
+dti_intr_establish(ca, handler, val)
 	struct confargs *ca;
 	intr_handler_t handler;
 	void *val;
 {
-	struct pica_softc *sc = pica_cd.cd_devs[0];
+	struct dti_softc *sc = dti_cd.cd_devs[0];
 
 	int slot;
 
 	slot = ca->ca_slot;
 	if(slot == 0) {		/* Slot 0 is special, clock */
-		set_intr(INT_MASK_4, pica_clkintr, 1);
+		set_intr(INT_MASK_4, dti_clkintr, 1);
 	}
 
 	if(int_table[slot].int_mask != 0) {
-		panic("pica intr already set");
+		panic("dti intr already set");
 	}
 	else {
 		int_table[slot].int_mask = sc->sc_devs[slot].ps_mask;;
@@ -249,10 +252,10 @@ pica_intr_establish(ca, handler, val)
 }
 
 void
-pica_intr_disestablish(ca)
+dti_intr_disestablish(ca)
 	struct confargs *ca;
 {
-	struct pica_softc *sc = pica_cd.cd_devs[0];
+	struct dti_softc *sc = dti_cd.cd_devs[0];
 
 	int slot;
 
@@ -262,13 +265,13 @@ pica_intr_disestablish(ca)
 	else {
 		local_int_mask &= ~int_table[slot].int_mask;
 		int_table[slot].int_mask = 0;
-		int_table[slot].int_hand = pica_intrnull;
+		int_table[slot].int_hand = dti_intrnull;
 		int_table[slot].param = (void *)NULL;
 	}
 }
 
 int
-pica_matchname(ca, name)
+dti_matchname(ca, name)
 	struct confargs *ca;
 	char *name;
 {
@@ -276,17 +279,17 @@ pica_matchname(ca, name)
 }
 
 int
-pica_intrnull(val)
+dti_intrnull(val)
 	void *val;
 {
 	panic("uncaught PICA intr for slot %d\n", val);
 }
 
 /*
- *   Handle pica i/o interrupt.
+ *   Handle dti i/o interrupt.
  */
 int
-pica_iointr(val)
+dti_iointr(val)
 	void *val;
 {
 	int vector;
@@ -298,10 +301,10 @@ pica_iointr(val)
 }
 
 /*
- * Handle pica interval clock interrupt.
+ * Handle dti interval clock interrupt.
  */
 int
-pica_clkintr(mask, pc, statusReg, causeReg)
+dti_clkintr(mask, pc, statusReg, causeReg)
 	unsigned mask;
 	unsigned pc;
 	unsigned statusReg;
diff --git a/sys/arch/arc/include/bus.h b/sys/arch/arc/include/bus.h
index c9ab54932a2..77db1fa692c 100644
--- a/sys/arch/arc/include/bus.h
+++ b/sys/arch/arc/include/bus.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: bus.h,v 1.3 1996/07/30 20:24:24 pefo Exp $	*/
+/*	$OpenBSD: bus.h,v 1.4 1996/09/14 15:58:25 pefo Exp $	*/
 
 /*
  * Copyright (c) 1996 Christopher G. Demetriou.  All rights reserved.
@@ -101,7 +101,7 @@ struct arc_isa_busmap {
 #endif
 
 #define bus_mem_map(t, addr, size, cacheable, mhp)			\
-    (*mhp = (t == NULL ? port : port + (ulong)(t->isa_mem_base)), 0)
+    (*mhp = (bus_mem_handle_t)(t == NULL ? addr : addr + (ulong)(t->isa_mem_base)), 0)
 #define bus_mem_unmap(t, ioh, size)
 
 #define	bus_mem_read_1(t, h, o)		(*(volatile u_int8_t *)((h) + (o)))
diff --git a/sys/arch/arc/include/cpu.h b/sys/arch/arc/include/cpu.h
index 3330f03c8b9..033e0414373 100644
--- a/sys/arch/arc/include/cpu.h
+++ b/sys/arch/arc/include/cpu.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: cpu.h,v 1.3 1996/08/26 11:12:02 pefo Exp $	*/
+/*	$OpenBSD: cpu.h,v 1.4 1996/09/14 15:58:25 pefo Exp $	*/
 
 /*-
  * Copyright (c) 1992, 1993
@@ -297,6 +297,7 @@
 struct clockframe {
 	int	pc;	/* program counter at time of interrupt */
 	int	sr;	/* status register at time of interrupt */
+	int	cr;	/* cause register at time of interrupt */
 };
 
 #define	CLKF_USERMODE(framep)	((framep)->sr & SR_KSU_USER)
diff --git a/sys/arch/arc/include/memconf.h b/sys/arch/arc/include/memconf.h
index c4e4e760b52..3064c1a04cd 100644
--- a/sys/arch/arc/include/memconf.h
+++ b/sys/arch/arc/include/memconf.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: memconf.h,v 1.1 1996/08/26 11:12:02 pefo Exp $	*/
+/*	$OpenBSD: memconf.h,v 1.2 1996/09/14 15:58:26 pefo Exp $	*/
 
 /*
  * Copyright (c) 1996 Per Fogelstrom
@@ -43,7 +43,7 @@ struct mem_descriptor {
 };
 
 #ifdef _KERNEL
-#define	MAXMEMSEGS	8
+#define	MAXMEMSEGS	16
 extern struct mem_descriptor mem_layout[];
 #endif
 
diff --git a/sys/arch/arc/isa/isa_machdep.h b/sys/arch/arc/isa/isa_machdep.h
index 774a6acc6a6..060f511356a 100644
--- a/sys/arch/arc/isa/isa_machdep.h
+++ b/sys/arch/arc/isa/isa_machdep.h
@@ -1,4 +1,4 @@
-/*      $OpenBSD: isa_machdep.h,v 1.1.1.1 1996/06/24 09:07:18 pefo Exp $  */
+/*      $OpenBSD: isa_machdep.h,v 1.2 1996/09/14 15:58:26 pefo Exp $  */
 
 /*
  * Copyright (c) 1996 Per Fogelstrom
@@ -34,6 +34,18 @@
 
 typedef struct arc_isa_bus *isa_chipset_tag_t;
 
+/*
+ *      I/O macros to access isa bus ports/memory.
+ *      At the first glance theese macros may seem inefficient.
+ *      However, the cpu executes an instruction every 7.5ns
+ *      so the bus is much slower so it doesn't matter, really.
+ */
+#define isa_outb(x,y)   outb(isa_io_base + (x), y)
+#define isa_inb(x)      inb(isa_io_base + (x))
+ 
+extern int isa_io_base;		/* Base address for ISA I/O space       */ 
+extern int isa_mem_base;	/* Base address for ISA MEM space       */
+
 struct arc_isa_bus {
         void    *ic_data;
 
diff --git a/sys/arch/arc/isa/isabus.c b/sys/arch/arc/isa/isabus.c
index 75e5d5cb9d4..be51509192c 100644
--- a/sys/arch/arc/isa/isabus.c
+++ b/sys/arch/arc/isa/isabus.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: isabus.c,v 1.2 1996/07/30 20:24:30 pefo Exp $	*/
+/*	$OpenBSD: isabus.c,v 1.3 1996/09/14 15:58:27 pefo Exp $	*/
 /*	$NetBSD: isa.c,v 1.33 1995/06/28 04:30:51 cgd Exp $	*/
 
 /*-
@@ -108,20 +108,8 @@ WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 #include <arc/isa/spkrreg.h>
 #include <arc/isa/isa_machdep.h>
 
-extern int isa_io_base;		/* Base address for ISA I/O space	*/
-extern int isa_mem_base;	/* Base address for ISA MEM space	*/
-
 static int beeping;
 
-/*
- *	I/O macros to access isa bus ports/memory.
- *	At the first glance theese macros may seem inefficient.
- *      However, the cpu executes an instruction every 7.5ns
- *	so the bus is much slower so it doesn't matter, really.
- */
-#define	isa_outb(x,y)	outb(isa_io_base + (x), y)
-#define	isa_inb(x)	inb(isa_io_base + (x))
-
 #define	IRQ_SLAVE	2
 #define ICU_LEN		16
 
@@ -147,7 +135,7 @@ struct cfdriver isabr_cd = {
 void	*isabr_intr_establish __P((isa_chipset_tag_t, int, int, int,
 			int (*)(void *), void *, char *));
 void	isabr_intr_disestablish __P((isa_chipset_tag_t, void*));
-int	isabr_iointr __P((void *));
+int	isabr_iointr __P((unsigned int, struct clockframe *));
 void	isabr_initicu();
 
 extern int cputype;
@@ -188,6 +176,9 @@ isabrattach(parent, self, aux)
 	case ACER_PICA_61:
 		set_intr(INT_MASK_2, isabr_iointr, 3);
 		break;
+	case DESKSTATION_TYNE:
+		set_intr(INT_MASK_2, isabr_iointr, 2);
+		break;
 	default:
 		panic("isabrattach: unkown cputype!");
 	}
@@ -216,7 +207,7 @@ isabrprint(aux, pnp)
 
         if (pnp)
                 printf("%s at %s", ca->ca_name, pnp);
-        printf(" I/O base 0x%lx Mem base 0x%lx", isa_io_base, isa_mem_base);
+        printf(" isa_io_base 0x%lx isa_mem_base 0x%lx", isa_io_base, isa_mem_base);
         return (UNCONF);
 }
 
@@ -231,7 +222,7 @@ int	imen;
 int	intrtype[ICU_LEN], intrmask[ICU_LEN], intrlevel[ICU_LEN];
 struct intrhand *intrhand[ICU_LEN];
 
-int fakeintr(void *arg) {return 0;}
+int fakeintr(void *a) {return 0;}
 
 /*
  * Recalculate the interrupt masks from scratch.
@@ -383,17 +374,35 @@ isabr_intr_disestablish(ic, arg)
 }
 
 /*
- *	Process an interrupt from the ISA bus ACER PICA style.
+ *	Process an interrupt from the ISA bus.
  */
 int
-isabr_iointr(ca)
-	void *ca; /* XXX */
+isabr_iointr(mask, cf)
+        unsigned mask;
+        struct clockframe *cf;
 {
 	struct intrhand *ih;
 	int isa_vector;
 	int o_imen;
+	char vector;
 
-	isa_vector = in32(R4030_SYS_ISA_VECTOR) & (ICU_LEN - 1);
+	switch(cputype) {
+	case ACER_PICA_61:
+		isa_vector = in32(R4030_SYS_ISA_VECTOR) & (ICU_LEN - 1);
+		break;
+	case DESKSTATION_TYNE:
+		isa_outb(IO_ICU1, 0x0f);	/* Poll */
+		vector = isa_inb(IO_ICU1);
+		if(vector > 0 || (isa_vector = vector & 7) == 2) { 
+			isa_outb(IO_ICU2, 0x0f);
+			vector = isa_inb(IO_ICU2);
+			if(vector > 0) {
+				printf("isa: spurious interrupt.\n");
+				return(~0);
+			}
+			isa_vector = (vector & 7) | 8;
+		}
+	}
 
 	o_imen = imen;
 	imen |= 1 << (isa_vector & (ICU_LEN - 1));
@@ -409,6 +418,10 @@ isabr_iointr(ca)
 		isa_outb(IO_ICU1, 0x60 + isa_vector);
 	}
 	ih = intrhand[isa_vector];
+	if(isa_vector == 0) {	/* Clock */	/*XXX*/
+		(*ih->ih_fun)(cf);
+		ih = ih->ih_next;
+	}
 	while(ih) {
 		(*ih->ih_fun)(ih->ih_arg);
 		ih = ih->ih_next;
@@ -426,7 +439,7 @@ isabr_iointr(ca)
 /* 
  * Initialize the Interrupt controller logic.
  */
-void                  
+void
 isabr_initicu()
 {  
 
diff --git a/sys/arch/arc/pica/pica.h b/sys/arch/arc/pica/pica.h
index d1d9b7ecd6b..24f7438e71a 100644
--- a/sys/arch/arc/pica/pica.h
+++ b/sys/arch/arc/pica/pica.h
@@ -1,12 +1,8 @@
-/*	$OpenBSD	*/
-/*-
- * 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 Mach Operating System project at Carnegie-Mellon University,
- * Ralph Campbell and Rick Macklem.
- *
+/*	$OpenBSD: pica.h,v 1.4 1996/09/14 15:58:28 pefo Exp $ */
+
+/*
+ * Copyright (c) 1994, 1995, 1996 Per Fogelstrom
+ * 
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ -17,17 +13,16 @@
  *    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 product includes software developed under OpenBSD by
+ *	Per Fogelstrom.
+ * 4. The name of the author may not 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
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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
@@ -35,22 +30,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	from: @(#)pica.h	8.1 (Berkeley) 6/10/93
- *      $Id: pica.h,v 1.3 1996/09/04 21:18:25 pefo Exp $
  */
-
-/*
- * HISTORY
- * Log:	pica.h,v
- * 	Created, from the ALI specs:
- */
-/*
- *	File: pica.h
- * 	Author: Per Fogelstrom
- *	Date:	1/95
- *
- */
-
 #ifndef	_PICA_H_
 #define	_PICA_H_ 1
 
diff --git a/sys/arch/arc/pica/picabus.c b/sys/arch/arc/pica/picabus.c
index 5656c49f7ca..7b43a33e204 100644
--- a/sys/arch/arc/pica/picabus.c
+++ b/sys/arch/arc/pica/picabus.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: picabus.c,v 1.3 1996/07/30 20:24:32 pefo Exp $	*/
+/*	$OpenBSD: picabus.c,v 1.4 1996/09/14 15:58:29 pefo Exp $	*/
 /*	$NetBSD: tc.c,v 1.2 1995/03/08 00:39:05 cgd Exp $	*/
 
 /*
@@ -61,8 +61,8 @@ void	pica_intr_establish __P((struct confargs *, int (*)(void *), void *));
 void	pica_intr_disestablish __P((struct confargs *));
 caddr_t	pica_cvtaddr __P((struct confargs *));
 int	pica_matchname __P((struct confargs *, char *));
-int	pica_iointr __P((void *));
-int	pica_clkintr __P((unsigned, unsigned, unsigned, unsigned));
+int	pica_iointr __P((unsigned int, struct clockframe *));
+int	pica_clkintr __P((unsigned int, struct clockframe *));
 
 extern int cputype;
 
@@ -286,8 +286,9 @@ pica_intrnull(val)
  *   Handle pica i/o interrupt.
  */
 int
-pica_iointr(val)
-	void *val;
+pica_iointr(mask, cf)
+	unsigned mask;
+	struct clockframe *cf;
 {
 	int vector;
 
@@ -301,19 +302,14 @@ pica_iointr(val)
  * Handle pica interval clock interrupt.
  */
 int
-pica_clkintr(mask, pc, statusReg, causeReg)
+pica_clkintr(mask, cf)
 	unsigned mask;
-	unsigned pc;
-	unsigned statusReg;
-	unsigned causeReg;
+	struct clockframe *cf;
 {
-	struct clockframe cf;
 	int temp;
 
 	temp = inw(R4030_SYS_IT_STAT);
-	cf.pc = pc;
-	cf.sr = statusReg;
-	hardclock(&cf);
+	hardclock(cf);
 
 	/* Re-enable clock interrupts */
 	splx(INT_MASK_4 | SR_INT_ENAB);