initial stab at an SBus front end for gem(4). currently untested.

From martin@NetBSD

2 files changed, 162 insertions, 1 deletions

diff --git a/sys/dev/sbus/files.sbus b/sys/dev/sbus/files.sbus
index 9f01f4e38fe..a4d1771442a 100644
--- a/sys/dev/sbus/files.sbus
+++ b/sys/dev/sbus/files.sbus
@@ -1,4 +1,4 @@
-#	$OpenBSD: files.sbus,v 1.32 2006/02/12 12:02:29 miod Exp $
+#	$OpenBSD: files.sbus,v 1.33 2006/11/25 15:54:35 brad Exp $
 #	$NetBSD: files.sbus,v 1.16 2000/12/08 17:29:12 martin Exp $
 #
 # Config file and device description for machine-independent SBUS code.
@@ -45,6 +45,9 @@ file	dev/sbus/esp_sbus.c		esp_sbus | esp_dma	needs-flag
 attach	hme at sbus with hme_sbus
 file	dev/sbus/if_hme_sbus.c		hme_sbus
 
+attach	gem at sbus with gem_sbus
+file	dev/sbus/if_gem_sbus.c		gem_sbus
+
 device	audiocs: audio, auconv
 attach	audiocs at sbus
 file	dev/sbus/cs4231.c		audiocs
diff --git a/sys/dev/sbus/if_gem_sbus.c b/sys/dev/sbus/if_gem_sbus.c
new file mode 100644
index 00000000000..c44dabb5e6e
--- /dev/null
+++ b/sys/dev/sbus/if_gem_sbus.c
@@ -0,0 +1,158 @@
+/*	$OpenBSD: if_gem_sbus.c,v 1.1 2006/11/25 15:54:35 brad Exp $	*/
+/*	$NetBSD: if_gem_sbus.c,v 1.1 2006/11/24 13:23:32 martin Exp $	*/
+
+/*-
+ * Copyright (c) 2006 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Martin Husemann.
+ *
+ * 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.
+ */
+
+/*
+ * SBus front-end for the GEM network driver
+ */
+
+#if 0
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: if_gem_sbus.c,v 1.1 2006/11/24 13:23:32 martin Exp $");
+#endif
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/syslog.h>
+#include <sys/device.h>
+#include <sys/malloc.h>
+#include <sys/socket.h>
+
+#include <net/if.h>
+#include <net/if_dl.h>
+#include <net/if_media.h>
+
+#ifdef INET
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/in_var.h>
+#include <netinet/ip.h>
+#include <netinet/if_ether.h>
+#endif
+
+#include <dev/mii/mii.h>
+#include <dev/mii/miivar.h>
+
+#include <machine/bus.h>
+#include <machine/intr.h>
+#include <machine/autoconf.h>
+
+#include <dev/sbus/sbusvar.h>
+
+#include <dev/ic/gemreg.h>
+#include <dev/ic/gemvar.h>
+
+#include <dev/ofw/openfirm.h>
+
+struct gem_sbus_softc {
+	struct	gem_softc	gsc_gem;	/* GEM device */
+};
+
+int	gemmatch_sbus(struct device *, void *, void *);
+void	gemattach_sbus(struct device *, struct device *, void *);
+
+struct cfattach gem_sbus_ca = {
+	sizeof(struct gem_sbus_softc), gemmatch_sbus, gemattach_sbus
+};
+
+int
+gemmatch_sbus(struct device *parent, void *vcf, void *aux)
+{
+	struct sbus_attach_args *sa = aux;
+
+	return (strcmp("network", sa->sa_name) == 0);
+}
+
+void
+gemattach_sbus(struct device *parent, struct device *self, void *aux)
+{
+	struct sbus_attach_args *sa = aux;
+	struct gem_sbus_softc *gsc = (void *)self;
+	struct gem_softc *sc = &gsc->gsc_gem;
+	/* XXX the following declarations should be elsewhere */
+	extern void myetheraddr(u_char *);
+
+	/* Pass on the bus tags */
+	sc->sc_bustag = sa->sa_bustag;
+	sc->sc_dmatag = sa->sa_dmatag;
+
+	if (sa->sa_nreg < 2) {
+		printf("%s: only %d register sets\n",
+			self->dv_xname, sa->sa_nreg);
+		return;
+	}
+
+	/*
+	 * Map two register banks:
+	 *
+	 *	bank 0: status, config, reset
+	 *	bank 1: various gem parts
+	 *
+	 */
+	if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot,
+			 (bus_addr_t)sa->sa_reg[0].sbr_offset,
+			 (bus_size_t)sa->sa_reg[0].sbr_size, 0, 0,
+			 &sc->sc_h2) != 0) {
+		printf("%s: cannot map registers\n", self->dv_xname);
+		return;
+	}
+	if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot,
+			 (bus_addr_t)sa->sa_reg[1].sbr_offset,
+			 (bus_size_t)sa->sa_reg[1].sbr_size, 0, 0,
+			 &sc->sc_h1) != 0) {
+		printf("%s: cannot map registers\n", self->dv_xname);
+		return;
+	}
+
+	if (OF_getprop(sa->sa_node, "local-mac-address",
+	    sc->sc_enaddr, ETHER_ADDR_LEN) <= 0)
+		myetheraddr(sc->sc_enaddr);
+
+	/*
+	 * SBUS config
+	 */
+	bus_space_write_4(sa->sa_bustag, sc->sc_h2, GEM_SBUS_CONFIG,
+	    GEM_SBUS_CFG_PARITY|GEM_SBUS_CFG_BMODE64);
+
+	/* Establish interrupt handler */
+	if (sa->sa_nintr != 0)
+		(void)bus_intr_establish(sa->sa_bustag, sa->sa_pri, IPL_NET, 0,
+					gem_intr, sc, self->dv_xname);
+
+	gem_config(sc);
+}