enough from netbsd to get le at ledma attached

5 files changed, 1095 insertions, 0 deletions

diff --git a/sys/dev/sbus/dma_sbus.c b/sys/dev/sbus/dma_sbus.c
new file mode 100644
index 00000000000..2b435244a42
--- /dev/null
+++ b/sys/dev/sbus/dma_sbus.c
@@ -0,0 +1,281 @@
+/*	$NetBSD: dma_sbus.c,v 1.5 2000/07/09 20:57:42 pk Exp $ */
+
+/*-
+ * Copyright (c) 1998 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Paul Kranenburg.
+ *
+ * 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 NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+/*
+ * Copyright (c) 1994 Peter Galbavy.  All rights reserved.
+ *
+ * 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 Peter Galbavy.
+ * 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 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.
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/errno.h>
+#include <sys/device.h>
+#include <sys/malloc.h>
+
+#include <machine/bus.h>
+#include <machine/intr.h>
+#include <machine/autoconf.h>
+
+#include <dev/sbus/sbusvar.h>
+
+#include <dev/ic/lsi64854reg.h>
+#include <dev/ic/lsi64854var.h>
+
+#include <scsi/scsi_all.h>
+#include <scsi/scsiconf.h>
+
+#include <dev/ic/ncr53c9xreg.h>
+#include <dev/ic/ncr53c9xvar.h>
+
+struct dma_softc {
+	struct lsi64854_softc	sc_lsi64854;	/* base device */
+	struct sbusdev	sc_sd;			/* sbus device */
+};
+
+int	dmamatch_sbus	__P((struct device *, void *, void *));
+void	dmaattach_sbus	__P((struct device *, struct device *, void *));
+
+int	dmaprint_sbus	__P((void *, const char *));
+
+void	*dmabus_intr_establish __P((
+		bus_space_tag_t,
+		int,			/*bus interrupt priority*/
+		int,			/*`device class' level*/
+		int,			/*flags*/
+		int (*) __P((void *)),	/*handler*/
+		void *));		/*handler arg*/
+
+static	bus_space_tag_t dma_alloc_bustag __P((struct dma_softc *sc));
+
+struct cfattach dma_sbus_ca = {
+	sizeof(struct dma_softc), dmamatch_sbus, dmaattach_sbus
+};
+
+struct cfattach ledma_ca = {
+	sizeof(struct dma_softc), dmamatch_sbus, dmaattach_sbus
+};
+
+struct cfdriver ledma_cd = {
+	NULL, "ledma", DV_DULL
+};
+
+int
+dmaprint_sbus(aux, busname)
+	void *aux;
+	const char *busname;
+{
+	struct sbus_attach_args *sa = aux;
+	bus_space_tag_t t = sa->sa_bustag;
+	struct dma_softc *sc = t->cookie;
+
+	sa->sa_bustag = sc->sc_lsi64854.sc_bustag;	/* XXX */
+	sbus_print(aux, busname);	/* XXX */
+	sa->sa_bustag = t;		/* XXX */
+	return (UNCONF);
+}
+
+int
+dmamatch_sbus(parent, vcf, aux)
+	struct device *parent;
+	void *vcf;
+	void *aux;
+{
+	struct cfdata *cf = vcf;
+	struct sbus_attach_args *sa = aux;
+
+	return (strcmp(cf->cf_driver->cd_name, sa->sa_name) == 0 ||
+		strcmp("espdma", sa->sa_name) == 0);
+}
+
+void
+dmaattach_sbus(parent, self, aux)
+	struct device *parent, *self;
+	void *aux;
+{
+	struct sbus_attach_args *sa = aux;
+	struct dma_softc *dsc = (void *)self;
+	struct lsi64854_softc *sc = &dsc->sc_lsi64854;
+	bus_space_handle_t bh;
+	bus_space_tag_t sbt;
+	int sbusburst, burst;
+	int node;
+
+	node = sa->sa_node;
+
+	sc->sc_bustag = sa->sa_bustag;
+	sc->sc_dmatag = sa->sa_dmatag;
+
+	/* Map registers */
+	if (sa->sa_npromvaddrs != 0)
+		sc->sc_regs = (bus_space_handle_t)sa->sa_promvaddrs[0];
+	else {
+		if (sbus_bus_map(sa->sa_bustag, sa->sa_slot,
+				 sa->sa_offset,
+				 sa->sa_size,
+				 0, 0, &bh) != 0) {
+			printf("%s: cannot map registers\n", self->dv_xname);
+			return;
+		}
+		sc->sc_regs = bh;
+	}
+
+	/*
+	 * Get transfer burst size from PROM and plug it into the
+	 * controller registers. This is needed on the Sun4m; do
+	 * others need it too?
+	 */
+	sbusburst = ((struct sbus_softc *)parent)->sc_burst;
+	if (sbusburst == 0)
+		sbusburst = SBUS_BURST_32 - 1; /* 1->16 */
+
+	burst = getpropint(node,"burst-sizes", -1);
+	if (burst == -1)
+		/* take SBus burst sizes */
+		burst = sbusburst;
+
+	/* Clamp at parent's burst sizes */
+	burst &= sbusburst;
+	sc->sc_burst = (burst & SBUS_BURST_32) ? 32 :
+		       (burst & SBUS_BURST_16) ? 16 : 0;
+
+	if (sc->sc_dev.dv_cfdata->cf_attach == &ledma_ca) {
+		char *cabletype;
+		u_int32_t csr;
+		/*
+		 * Check to see which cable type is currently active and
+		 * set the appropriate bit in the ledma csr so that it
+		 * gets used. If we didn't netboot, the PROM won't have
+		 * the "cable-selection" property; default to TP and then
+		 * the user can change it via a "media" option to ifconfig.
+		 */
+		cabletype = getpropstring(node, "cable-selection");
+		csr = L64854_GCSR(sc);
+		if (strcmp(cabletype, "tpe") == 0) {
+			csr |= E_TP_AUI;
+		} else if (strcmp(cabletype, "aui") == 0) {
+			csr &= ~E_TP_AUI;
+		} else {
+			/* assume TP if nothing there */
+			csr |= E_TP_AUI;
+		}
+		L64854_SCSR(sc, csr);
+		delay(20000);	/* manual says we need a 20ms delay */
+		sc->sc_channel = L64854_CHANNEL_ENET;
+	} else {
+		sc->sc_channel = L64854_CHANNEL_SCSI;
+	}
+
+	sbus_establish(&dsc->sc_sd, &sc->sc_dev);
+	sbt = dma_alloc_bustag(dsc);
+	lsi64854_attach(sc);
+
+	/* Attach children */
+	for (node = firstchild(sa->sa_node); node; node = nextsibling(node)) {
+		struct sbus_attach_args sa;
+		sbus_setup_attach_args((struct sbus_softc *)parent,
+				       sbt, sc->sc_dmatag, node, &sa);
+		(void) config_found(&sc->sc_dev, (void *)&sa, dmaprint_sbus);
+		sbus_destroy_attach_args(&sa);
+	}
+}
+
+void *
+dmabus_intr_establish(t, pri, level, flags, handler, arg)
+	bus_space_tag_t t;
+	int pri;
+	int level;
+	int flags;
+	int (*handler) __P((void *));
+	void *arg;
+{
+	struct lsi64854_softc *sc = t->cookie;
+
+	/* XXX - for now only le; do esp later */
+	if (sc->sc_channel == L64854_CHANNEL_ENET) {
+		sc->sc_intrchain = handler;
+		sc->sc_intrchainarg = arg;
+		handler = lsi64854_enet_intr;
+		arg = sc;
+	}
+	return (bus_intr_establish(sc->sc_bustag, pri, level, flags,
+				   handler, arg));
+}
+
+bus_space_tag_t
+dma_alloc_bustag(sc)
+	struct dma_softc *sc;
+{
+	bus_space_tag_t sbt;
+
+	sbt = (bus_space_tag_t)
+		malloc(sizeof(struct sparc_bus_space_tag), M_DEVBUF, M_NOWAIT);
+	if (sbt == NULL)
+		return (NULL);
+
+	bzero(sbt, sizeof *sbt);
+	sbt->cookie = sc;
+	sbt->parent = sc->sc_lsi64854.sc_bustag;
+	sbt->sparc_intr_establish = dmabus_intr_establish;
+	return (sbt);
+}
diff --git a/sys/dev/sbus/files.sbus b/sys/dev/sbus/files.sbus
new file mode 100644
index 00000000000..338e0cc4c51
--- /dev/null
+++ b/sys/dev/sbus/files.sbus
@@ -0,0 +1,26 @@
+#	$NetBSD: files.sbus,v 1.16 2000/12/08 17:29:12 martin Exp $
+#
+# Config file and device description for machine-independent SBUS code.
+# Included by ports that need it.
+
+device	sbus { slot = -1, offset = -1 }
+#notyet:file	dev/sbus/sbus.c			sbus
+
+# Sbus NCR539x SCSI & Lance Ethernet
+device	dma {}: lsi64854
+attach	dma at sbus with dma_sbus
+device	ledma {}: lsi64854
+attach	ledma at sbus
+file	dev/sbus/dma_sbus.c		dma_sbus | ledma
+
+device	lebuffer {}
+attach	lebuffer at sbus
+file	dev/sbus/lebuffer.c		lebuffer
+
+# device definition in sys/conf/files
+attach	le at sbus with le_sbus
+attach	le at lebuffer with le_lebuffer
+attach	le at ledma with le_ledma
+file	dev/sbus/if_le.c		le_sbus
+file	dev/sbus/if_le_lebuffer.c	le_lebuffer
+file	dev/sbus/if_le_ledma.c		le_ledma
diff --git a/sys/dev/sbus/if_le.c b/sys/dev/sbus/if_le.c
new file mode 100644
index 00000000000..f127570c5dd
--- /dev/null
+++ b/sys/dev/sbus/if_le.c
@@ -0,0 +1,287 @@
+/*	$NetBSD: if_le.c,v 1.17 2001/05/30 11:46:35 mrg Exp $	*/
+
+/*-
+ * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Charles M. Hannum; Jason R. Thorpe of the Numerical Aerospace
+ * Simulation Facility, NASA Ames Research Center; Paul Kranenburg.
+ *
+ * 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 NetBSD
+ *	Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#include "bpfilter.h"
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/mbuf.h>
+#include <sys/syslog.h>
+#include <sys/socket.h>
+#include <sys/device.h>
+#include <sys/malloc.h>
+
+#include <net/if.h>
+#include <net/if_media.h>
+
+#ifdef INET
+#include <netinet/in.h>
+#include <netinet/if_ether.h>
+#endif
+
+#include <machine/bus.h>
+#include <machine/intr.h>
+#include <machine/autoconf.h>
+
+#include <dev/sbus/sbusvar.h>
+#include <dev/sbus/lebuffervar.h>	/*XXX*/
+
+#include <dev/ic/lancereg.h>
+#include <dev/ic/lancevar.h>
+#include <dev/ic/am7990reg.h>
+#include <dev/ic/am7990var.h>
+
+/*
+ * LANCE registers.
+ */
+#define LEREG1_RDP	0	/* Register Data port */
+#define LEREG1_RAP	2	/* Register Address port */
+
+struct	le_softc {
+	struct	am7990_softc	sc_am7990;	/* glue to MI code */
+	struct	sbusdev		sc_sd;		/* sbus device */
+	bus_space_tag_t		sc_bustag;
+	bus_dma_tag_t		sc_dmatag;
+	bus_dmamap_t		sc_dmamap;
+	bus_space_handle_t	sc_reg;
+};
+
+#define MEMSIZE 0x4000		/* LANCE memory size */
+
+int	lematch_sbus __P((struct device *, void *, void *));
+void	leattach_sbus __P((struct device *, struct device *, void *));
+
+/*
+ * Media types supported.
+ */
+struct cfattach le_sbus_ca = {
+	sizeof(struct le_softc), lematch_sbus, leattach_sbus
+};
+
+extern struct cfdriver le_cd;
+
+#ifdef DDB
+#define	integrate
+#define hide
+#else
+#define	integrate	static __inline
+#define hide		static
+#endif
+
+static void lewrcsr __P((struct am7990_softc *, u_int16_t, u_int16_t));
+static u_int16_t lerdcsr __P((struct am7990_softc *, u_int16_t));
+
+static void
+lewrcsr(sc, port, val)
+	struct am7990_softc *sc;
+	u_int16_t port, val;
+{
+	struct le_softc *lesc = (struct le_softc *)sc;
+
+	bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RAP, port);
+	bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RDP, val);
+
+#if defined(SUN4M)
+	/*
+	 * We need to flush the Sbus->Mbus write buffers. This can most
+	 * easily be accomplished by reading back the register that we
+	 * just wrote (thanks to Chris Torek for this solution).
+	 */
+	if (CPU_ISSUN4M) {
+		volatile u_int16_t discard;
+		discard = bus_space_read_2(lesc->sc_bustag, lesc->sc_reg,
+					   LEREG1_RDP);
+	}
+#endif
+}
+
+static u_int16_t
+lerdcsr(sc, port)
+	struct am7990_softc *sc;
+	u_int16_t port;
+{
+	struct le_softc *lesc = (struct le_softc *)sc;
+
+	bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RAP, port);
+	return (bus_space_read_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RDP));
+}
+
+
+int
+lematch_sbus(parent, vcf, aux)
+	struct device *parent;
+	void *vcf;
+	void *aux;
+{
+	struct cfdata *cf = vcf;
+	struct sbus_attach_args *sa = aux;
+
+	return (strcmp(cf->cf_driver->cd_name, sa->sa_name) == 0);
+}
+
+void
+leattach_sbus(parent, self, aux)
+	struct device *parent, *self;
+	void *aux;
+{
+	struct sbus_attach_args *sa = aux;
+	struct le_softc *lesc = (struct le_softc *)self;
+	struct am7990_softc *sc = &lesc->sc_am7990;
+	bus_dma_tag_t dmatag;
+	struct sbusdev *sd;
+	/* XXX the following declarations should be elsewhere */
+	extern void myetheraddr __P((u_char *));
+
+
+	lesc->sc_bustag = sa->sa_bustag;
+	lesc->sc_dmatag = dmatag = sa->sa_dmatag;
+
+	if (sbus_bus_map(sa->sa_bustag,
+			 sa->sa_slot,
+			 sa->sa_offset,
+			 sa->sa_size,
+			 BUS_SPACE_MAP_LINEAR,
+			 0, &lesc->sc_reg) != 0) {
+		printf("%s @ sbus: cannot map registers\n", self->dv_xname);
+		return;
+	}
+
+	/*
+	 * Look for an "unallocated" lebuffer and pair it with
+	 * this `le' device on the assumption that we're on
+	 * a pre-historic ROM that doesn't establish le<=>lebuffer
+	 * parent-child relationships.
+	 */
+	for (sd = ((struct sbus_softc *)parent)->sc_sbdev; sd != NULL;
+	     sd = sd->sd_bchain) {
+
+		struct lebuf_softc *lebuf = (struct lebuf_softc *)sd->sd_dev;
+
+		if (strncmp("lebuffer", sd->sd_dev->dv_xname, 8) != 0)
+			continue;
+
+		if (lebuf->attached != 0)
+			continue;
+
+		sc->sc_mem = lebuf->sc_buffer;
+		sc->sc_memsize = lebuf->sc_bufsiz;
+		sc->sc_addr = 0; /* Lance view is offset by buffer location */
+		lebuf->attached = 1;
+
+		/* That old black magic... */
+		sc->sc_conf3 = getpropint(sa->sa_node,
+					  "busmaster-regval",
+					  LE_C3_BSWP | LE_C3_ACON | LE_C3_BCON);
+		break;
+	}
+
+	lesc->sc_sd.sd_reset = (void *)am7990_reset;
+	sbus_establish(&lesc->sc_sd, &sc->sc_dev);
+
+	if (sc->sc_mem == 0) {
+		bus_dma_segment_t seg;
+		int rseg, error;
+
+#ifndef BUS_DMA_24BIT
+/* XXX - This flag is not defined on all archs */
+#define BUS_DMA_24BIT	0
+#endif
+		/* Get a DMA handle */
+		if ((error = bus_dmamap_create(dmatag, MEMSIZE, 1, MEMSIZE, 0,
+						BUS_DMA_NOWAIT|BUS_DMA_24BIT,
+						&lesc->sc_dmamap)) != 0) {
+			printf("%s: DMA map create error %d\n",
+				self->dv_xname, error);
+			return;
+		}
+
+		/* Allocate DMA buffer */
+		if ((error = bus_dmamem_alloc(dmatag, MEMSIZE, 0, 0,
+					 &seg, 1, &rseg,
+					 BUS_DMA_NOWAIT|BUS_DMA_24BIT)) != 0){
+			printf("%s: DMA buffer allocation error %d\n",
+				self->dv_xname, error);
+			return;
+		}
+
+		/* Map DMA buffer into kernel space */
+		if ((error = bus_dmamem_map(dmatag, &seg, rseg, MEMSIZE,
+				       (caddr_t *)&sc->sc_mem,
+				       BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) != 0) {
+			printf("%s: DMA buffer map error %d\n",
+				self->dv_xname, error);
+			bus_dmamem_free(lesc->sc_dmatag, &seg, rseg);
+			return;
+		}
+
+		/* Load DMA buffer */
+		if ((error = bus_dmamap_load(dmatag, lesc->sc_dmamap, sc->sc_mem,
+		    MEMSIZE, NULL, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) != 0) {
+			printf("%s: DMA buffer map load error %d\n",
+				self->dv_xname, error);
+			bus_dmamem_free(dmatag, &seg, rseg);
+			bus_dmamem_unmap(dmatag, sc->sc_mem, MEMSIZE);
+			return;
+		}
+
+		sc->sc_addr = lesc->sc_dmamap->dm_segs[0].ds_addr & 0xffffff;
+		sc->sc_memsize = MEMSIZE;
+		sc->sc_conf3 = LE_C3_BSWP | LE_C3_ACON | LE_C3_BCON;
+	}
+
+	myetheraddr(sc->sc_arpcom.ac_enaddr);
+
+	sc->sc_hasifmedia = 1;
+
+	sc->sc_copytodesc = am7990_copytobuf_contig;
+	sc->sc_copyfromdesc = am7990_copyfrombuf_contig;
+	sc->sc_copytobuf = am7990_copytobuf_contig;
+	sc->sc_copyfrombuf = am7990_copyfrombuf_contig;
+	sc->sc_zerobuf = am7990_zerobuf_contig;
+
+	sc->sc_rdcsr = lerdcsr;
+	sc->sc_wrcsr = lewrcsr;
+
+	am7990_config(&lesc->sc_am7990);
+
+	/* Establish interrupt handler */
+	if (sa->sa_nintr != 0)
+		(void)bus_intr_establish(lesc->sc_bustag, sa->sa_pri,
+					 IPL_NET, 0, am7990_intr, sc);
+}
diff --git a/sys/dev/sbus/if_le_ledma.c b/sys/dev/sbus/if_le_ledma.c
new file mode 100644
index 00000000000..be2a1098db1
--- /dev/null
+++ b/sys/dev/sbus/if_le_ledma.c
@@ -0,0 +1,451 @@
+/*	$NetBSD: if_le_ledma.c,v 1.14 2001/05/30 11:46:35 mrg Exp $	*/
+
+/*-
+ * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Charles M. Hannum; Jason R. Thorpe of the Numerical Aerospace
+ * Simulation Facility, NASA Ames Research Center; Paul Kranenburg.
+ *
+ * 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 NetBSD
+ *	Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#include "bpfilter.h"
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/mbuf.h>
+#include <sys/syslog.h>
+#include <sys/socket.h>
+#include <sys/device.h>
+#include <sys/malloc.h>
+
+#include <net/if.h>
+#include <net/if_media.h>
+
+#ifdef INET
+#include <netinet/in.h>
+#include <netinet/if_ether.h>
+#endif
+
+#include <machine/bus.h>
+#include <machine/intr.h>
+
+#include <dev/sbus/sbusvar.h>
+
+#include <dev/ic/lsi64854reg.h>
+#include <dev/ic/lsi64854var.h>
+
+#include <dev/ic/lancereg.h>
+#include <dev/ic/lancevar.h>
+#include <dev/ic/am7990reg.h>
+#include <dev/ic/am7990var.h>
+
+/*
+ * LANCE registers.
+ */
+#define LEREG1_RDP	0	/* Register Data port */
+#define LEREG1_RAP	2	/* Register Address port */
+
+struct	le_softc {
+	struct	am7990_softc	sc_am7990;	/* glue to MI code */
+	struct	sbusdev		sc_sd;		/* sbus device */
+	bus_space_tag_t		sc_bustag;
+	bus_dmamap_t		sc_dmamap;
+	bus_space_handle_t	sc_reg;		/* LANCE registers */
+	struct	lsi64854_softc	*sc_dma;	/* pointer to my dma */
+	u_int			sc_laddr;	/* LANCE DMA address */
+};
+
+#define MEMSIZE		(16*1024)	/* LANCE memory size */
+#define LEDMA_BOUNDARY	(16*1024*1024)	/* must not cross 16MB boundary */
+
+int	lematch_ledma __P((struct device *, void *, void *));
+void	leattach_ledma __P((struct device *, struct device *, void *));
+
+/*
+ * Media types supported by the Sun4m.
+ */
+
+void	lesetutp __P((struct am7990_softc *));
+void	lesetaui __P((struct am7990_softc *));
+
+int	lemediachange __P((struct ifnet *));
+void	lemediastatus __P((struct ifnet *, struct ifmediareq *));
+
+struct cfattach le_ledma_ca = {
+	sizeof(struct le_softc), lematch_ledma, leattach_ledma
+};
+
+#if 0
+struct cfdriver le_cd = {
+	NULL, "le", DV_DULL
+};
+#endif
+
+#if defined(_KERNEL_OPT)
+#include "opt_ddb.h"
+#endif
+
+#ifdef DDB
+#define	integrate
+#define hide
+#else
+#define	integrate	static __inline
+#define hide		static
+#endif
+
+static void lewrcsr __P((struct am7990_softc *, u_int16_t, u_int16_t));
+static u_int16_t lerdcsr __P((struct am7990_softc *, u_int16_t));
+hide void lehwreset __P((struct am7990_softc *));
+hide void lehwinit __P((struct am7990_softc *));
+hide void lenocarrier __P((struct am7990_softc *));
+
+static void
+lewrcsr(sc, port, val)
+	struct am7990_softc *sc;
+	u_int16_t port, val;
+{
+	struct le_softc *lesc = (struct le_softc *)sc;
+
+	bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RAP, port);
+	bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RDP, val);
+
+#if defined(SUN4M)
+	/*
+	 * We need to flush the Sbus->Mbus write buffers. This can most
+	 * easily be accomplished by reading back the register that we
+	 * just wrote (thanks to Chris Torek for this solution).
+	 */
+	if (CPU_ISSUN4M) {
+		volatile u_int16_t discard;
+		discard = bus_space_read_2(lesc->sc_bustag, lesc->sc_reg,
+					   LEREG1_RDP);
+	}
+#endif
+}
+
+static u_int16_t
+lerdcsr(sc, port)
+	struct am7990_softc *sc;
+	u_int16_t port;
+{
+	struct le_softc *lesc = (struct le_softc *)sc;
+
+	bus_space_write_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RAP, port);
+	return (bus_space_read_2(lesc->sc_bustag, lesc->sc_reg, LEREG1_RDP));
+}
+
+void
+lesetutp(sc)
+	struct am7990_softc *sc;
+{
+	struct lsi64854_softc *dma = ((struct le_softc *)sc)->sc_dma;
+	u_int32_t csr;
+
+	csr = L64854_GCSR(dma);
+	csr |= E_TP_AUI;
+	L64854_SCSR(dma, csr);
+	delay(20000);	/* must not touch le for 20ms */
+}
+
+void
+lesetaui(sc)
+	struct am7990_softc *sc;
+{
+	struct lsi64854_softc *dma = ((struct le_softc *)sc)->sc_dma;
+	u_int32_t csr;
+
+	csr = L64854_GCSR(dma);
+	csr &= ~E_TP_AUI;
+	L64854_SCSR(dma, csr);
+	delay(20000);	/* must not touch le for 20ms */
+}
+
+int
+lemediachange(ifp)
+	struct ifnet *ifp;
+{
+	struct am7990_softc *sc = ifp->if_softc;
+	struct ifmedia *ifm = &sc->sc_ifmedia;
+
+	if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
+		return (EINVAL);
+
+	/*
+	 * Switch to the selected media.  If autoselect is
+	 * set, we don't really have to do anything.  We'll
+	 * switch to the other media when we detect loss of
+	 * carrier.
+	 */
+	switch (IFM_SUBTYPE(ifm->ifm_media)) {
+	case IFM_10_T:
+		lesetutp(sc);
+		break;
+
+	case IFM_10_5:
+		lesetaui(sc);
+		break;
+
+	case IFM_AUTO:
+		break;
+
+	default:
+		return (EINVAL);
+	}
+
+	return (0);
+}
+
+void
+lemediastatus(ifp, ifmr)
+	struct ifnet *ifp;
+	struct ifmediareq *ifmr;
+{
+	struct am7990_softc *sc = ifp->if_softc;
+	struct lsi64854_softc *dma = ((struct le_softc *)sc)->sc_dma;
+
+	/*
+	 * Notify the world which media we're currently using.
+	 */
+	if (L64854_GCSR(dma) & E_TP_AUI)
+		ifmr->ifm_active = IFM_ETHER|IFM_10_T;
+	else
+		ifmr->ifm_active = IFM_ETHER|IFM_10_5;
+}
+
+hide void
+lehwreset(sc)
+	struct am7990_softc *sc;
+{
+	struct le_softc *lesc = (struct le_softc *)sc;
+	struct lsi64854_softc *dma = lesc->sc_dma;
+	u_int32_t csr;
+	u_int aui_bit;
+
+	/*
+	 * Reset DMA channel.
+	 */
+	csr = L64854_GCSR(dma);
+	aui_bit = csr & E_TP_AUI;
+	DMA_RESET(dma);
+
+	/* Write bits 24-31 of Lance address */
+	bus_space_write_4(dma->sc_bustag, dma->sc_regs, L64854_REG_ENBAR,
+			  lesc->sc_laddr & 0xff000000);
+
+	DMA_ENINTR(dma);
+
+	/*
+	 * Disable E-cache invalidates on chip writes.
+	 * Retain previous cable selection bit.
+	 */
+	csr = L64854_GCSR(dma);
+	csr |= (E_DSBL_WR_INVAL | aui_bit);
+	L64854_SCSR(dma, csr);
+	delay(20000);	/* must not touch le for 20ms */
+}
+
+hide void
+lehwinit(sc)
+	struct am7990_softc *sc;
+{
+
+	/*
+	 * Make sure we're using the currently-enabled media type.
+	 * XXX Actually, this is probably unnecessary, now.
+	 */
+	switch (IFM_SUBTYPE(sc->sc_ifmedia.ifm_cur->ifm_media)) {
+	case IFM_10_T:
+		lesetutp(sc);
+		break;
+
+	case IFM_10_5:
+		lesetaui(sc);
+		break;
+	}
+}
+
+hide void
+lenocarrier(sc)
+	struct am7990_softc *sc;
+{
+	struct le_softc *lesc = (struct le_softc *)sc;
+
+	/*
+	 * Check if the user has requested a certain cable type, and
+	 * if so, honor that request.
+	 */
+	printf("%s: lost carrier on ", sc->sc_dev.dv_xname);
+
+	if (L64854_GCSR(lesc->sc_dma) & E_TP_AUI) {
+		printf("UTP port");
+		switch (IFM_SUBTYPE(sc->sc_ifmedia.ifm_media)) {
+		case IFM_10_5:
+		case IFM_AUTO:
+			printf(", switching to AUI port");
+			lesetaui(sc);
+		}
+	} else {
+		printf("AUI port");
+		switch (IFM_SUBTYPE(sc->sc_ifmedia.ifm_media)) {
+		case IFM_10_T:
+		case IFM_AUTO:
+			printf(", switching to UTP port");
+			lesetutp(sc);
+		}
+	}
+	printf("\n");
+}
+
+int
+lematch_ledma(parent, vcf, aux)
+	struct device *parent;
+	void *vcf;
+	void *aux;
+{
+	struct cfdata *cf = vcf;
+	struct sbus_attach_args *sa = aux;
+
+	return (strcmp(cf->cf_driver->cd_name, sa->sa_name) == 0);
+}
+
+
+void
+leattach_ledma(parent, self, aux)
+	struct device *parent, *self;
+	void *aux;
+{
+	struct sbus_attach_args *sa = aux;
+	struct le_softc *lesc = (struct le_softc *)self;
+	struct lsi64854_softc *lsi = (struct lsi64854_softc *)parent;
+	struct am7990_softc *sc = &lesc->sc_am7990;
+	bus_dma_tag_t dmatag = sa->sa_dmatag;
+	bus_dma_segment_t seg;
+	int rseg, error;
+	/* XXX the following declarations should be elsewhere */
+	extern void myetheraddr __P((u_char *));
+
+	lesc->sc_bustag = sa->sa_bustag;
+
+	/* Establish link to `ledma' device */
+	lesc->sc_dma = lsi;
+	lesc->sc_dma->sc_client = lesc;
+
+	/* Map device registers */
+	if (bus_space_map2(sa->sa_bustag,
+			   sa->sa_slot,
+			   sa->sa_offset,
+			   sa->sa_size,
+			   BUS_SPACE_MAP_LINEAR,
+			   0, &lesc->sc_reg) != 0) {
+		printf("%s @ ledma: cannot map registers\n", self->dv_xname);
+		return;
+	}
+
+	/* Allocate buffer memory */
+	sc->sc_memsize = MEMSIZE;
+
+	/* Get a DMA handle */
+	if ((error = bus_dmamap_create(dmatag, MEMSIZE, 1, MEMSIZE,
+					LEDMA_BOUNDARY, BUS_DMA_NOWAIT,
+					&lesc->sc_dmamap)) != 0) {
+		printf("%s: DMA map create error %d\n", self->dv_xname, error);
+		return;
+	}
+
+	/* Allocate DMA buffer */
+	if ((error = bus_dmamem_alloc(dmatag, MEMSIZE, 0, LEDMA_BOUNDARY,
+				 &seg, 1, &rseg, BUS_DMA_NOWAIT)) != 0) {
+		printf("%s @ ledma: DMA buffer alloc error %d\n",
+			self->dv_xname, error);
+		return;
+	}
+
+	/* Map DMA buffer into kernel space */
+	if ((error = bus_dmamem_map(dmatag, &seg, rseg, MEMSIZE,
+			       (caddr_t *)&sc->sc_mem,
+			       BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) != 0) {
+		printf("%s @ ledma: DMA buffer map error %d\n",
+			self->dv_xname, error);
+		bus_dmamem_free(dmatag, &seg, rseg);
+		return;
+	}
+
+	/* Load DMA buffer */
+	if ((error = bus_dmamap_load(dmatag, lesc->sc_dmamap, sc->sc_mem,
+			MEMSIZE, NULL, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) != 0) {
+		printf("%s: DMA buffer map load error %d\n",
+			self->dv_xname, error);
+		bus_dmamem_free(dmatag, &seg, rseg);
+		bus_dmamem_unmap(dmatag, sc->sc_mem, MEMSIZE);
+		return;
+	}
+
+	lesc->sc_laddr = lesc->sc_dmamap->dm_segs[0].ds_addr;
+	sc->sc_addr = lesc->sc_laddr & 0xffffff;
+	sc->sc_conf3 = LE_C3_BSWP | LE_C3_ACON | LE_C3_BCON;
+
+
+	/* Assume SBus is grandparent */
+	lesc->sc_sd.sd_reset = (void *)am7990_reset;
+	sbus_establish(&lesc->sc_sd, parent);
+
+	ifmedia_init(&sc->sc_ifmedia, 0, lemediachange, lemediastatus);
+	ifmedia_add(&sc->sc_ifmedia, IFM_ETHER | IFM_10_T, 0, NULL);
+	ifmedia_add(&sc->sc_ifmedia, IFM_ETHER | IFM_10_5, 0, NULL);
+	ifmedia_add(&sc->sc_ifmedia, IFM_ETHER | IFM_AUTO, 0, NULL);
+	ifmedia_set(&sc->sc_ifmedia, IFM_ETHER | IFM_AUTO);
+	sc->sc_hasifmedia = 1;
+
+	myetheraddr(sc->sc_arpcom.ac_enaddr);
+
+	sc->sc_copytodesc = am7990_copytobuf_contig;
+	sc->sc_copyfromdesc = am7990_copyfrombuf_contig;
+	sc->sc_copytobuf = am7990_copytobuf_contig;
+	sc->sc_copyfrombuf = am7990_copyfrombuf_contig;
+	sc->sc_zerobuf = am7990_zerobuf_contig;
+
+	sc->sc_rdcsr = lerdcsr;
+	sc->sc_wrcsr = lewrcsr;
+	sc->sc_hwinit = lehwinit;
+	sc->sc_nocarrier = lenocarrier;
+	sc->sc_hwreset = lehwreset;
+
+	/* Establish interrupt handler */
+	if (sa->sa_nintr != 0)
+		(void)bus_intr_establish(sa->sa_bustag, sa->sa_pri, IPL_NET, 0,
+					 am7990_intr, sc);
+
+	am7990_config(&lesc->sc_am7990);
+
+	/* now initialize DMA */
+	lehwreset(sc);
+}
diff --git a/sys/dev/sbus/lebuffervar.h b/sys/dev/sbus/lebuffervar.h
new file mode 100644
index 00000000000..09ec238d3b4
--- /dev/null
+++ b/sys/dev/sbus/lebuffervar.h
@@ -0,0 +1,50 @@
+/*	$NetBSD: lebuffervar.h,v 1.2 1998/07/27 19:25:34 pk Exp $ */
+
+/*-
+ * Copyright (c) 1998 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Paul Kranenburg.
+ *
+ * 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 NetBSD
+ *        Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+struct lebuf_softc {
+	struct device sc_dev;		/* us as a device */
+	bus_space_tag_t	sc_bustag;
+	bus_dma_tag_t	sc_dmatag;
+	struct sbusdev sc_sd;		/* sbus device */
+	u_int	sc_rev;			/* revision */
+	int	sc_node;		/* PROM node ID */
+	int	sc_burst;		/* DVMA burst size in effect */
+	caddr_t	sc_buffer;		/* VA of the buffer we provide */
+	int	sc_bufsiz;		/* Size of buffer */
+	int	attached;		/* 1: in use by `le' device */
+};