Support for MVME917 complete.

1 files changed, 196 insertions, 0 deletions

diff --git a/sys/arch/mvme88k/dev/bussw.c b/sys/arch/mvme88k/dev/bussw.c
new file mode 100644
index 00000000000..369382d811f
--- /dev/null
+++ b/sys/arch/mvme88k/dev/bussw.c
@@ -0,0 +1,196 @@
+/*	$OpenBSD: bussw.c,v 1.1 2001/12/13 08:59:38 smurph Exp $ */
+
+/*
+ * Copyright (c) 1999 Steve Murphree, Jr.
+ * 
+ * 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
+ *	Theo de Raadt for Willowglen Singapore.
+ * 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/param.h>
+#include <sys/kernel.h>
+#include <sys/ioctl.h>
+#include <sys/device.h>
+#include <sys/systm.h>
+#include <sys/uio.h>
+#include <sys/malloc.h>
+#include <machine/psl.h>
+#include <machine/autoconf.h>
+#include <machine/bugio.h>
+#include <machine/cpu.h>
+#include <machine/mioctl.h>
+#include <machine/vmparam.h>
+
+#include <mvme88k/dev/busswreg.h>
+#include <mvme88k/dev/busswfunc.h>
+
+struct bussw_softc {
+	struct device   sc_dev;
+	void            *sc_paddr;
+	void            *sc_vaddr;
+	int             sc_len;
+	struct intrhand sc_abih;	/* `abort' switch */
+	struct bussw_reg        *sc_bussw;
+};
+
+void    bussw_attach    __P((struct device *, struct device *, void *));
+int     bussw_match __P((struct device *, void *, void *));
+
+struct cfattach bussw_ca = { 
+	sizeof(struct bussw_softc), bussw_match, bussw_attach
+}; 
+
+struct cfdriver bussw_cd = {
+	NULL, "bussw", DV_DULL, 0
+};
+
+int bussw_print __P((void *args, const char *bus));
+int bussw_scan __P((struct device *parent, void *child, void *args));
+int busswabort __P((void *));
+
+int
+bussw_match(parent, vcf, args)
+struct device *parent;
+void *vcf, *args;
+{
+	struct confargs *ca = args;
+	struct bussw_reg *bussw;
+	/* Don't match if wrong cpu */
+	if (brdtyp != BRD_197) 
+		return (0);  /* The only one... */
+
+	bussw = (struct bussw_reg *)(IIOV(ca->ca_paddr));
+	if (badvaddr((vm_offset_t)bussw, 4)) {
+		printf("==> busswitch: failed address check.\n");
+		return (0);
+	}
+	return (1);
+}
+
+void
+bussw_attach(parent, self, args)
+struct device *parent, *self;
+void *args;
+{
+	struct confargs *ca = args;
+	struct bussw_softc      *sc = (struct bussw_softc *)self;
+        struct bussw_reg *bs;
+
+	sc->sc_vaddr = sc->sc_paddr = ca->ca_paddr;
+	bs = sc->sc_bussw = (struct bussw_reg *)sc->sc_vaddr;
+	bs->bs_intr2 |= BS_VECBASE;
+	bs->bs_gcsr |= BS_GCSR_XIPL;
+	/* 
+	 * pseudo driver, abort interrupt handler
+	 */
+	sc->sc_abih.ih_fn = busswabort;
+	sc->sc_abih.ih_arg = 0;
+	sc->sc_abih.ih_wantframe = 1;
+	sc->sc_abih.ih_ipl = IPL_NMI;	/* level 8!! */
+	busswintr_establish(BS_ABORTIRQ, &sc->sc_abih);
+	bs->bs_intr1 |= BS_INTR1_ABORT_IEN;
+
+	printf(": rev %d\n", BS_CHIPREV(bs));
+	config_search(bussw_scan, self, args);
+}
+
+int
+bussw_print(args, bus)
+void *args;
+const char *bus;
+{
+	struct confargs *ca = args;
+
+	if (ca->ca_offset != -1)
+		printf(" offset 0x%x", ca->ca_offset);
+	if (ca->ca_ipl > 0)
+		printf(" ipl %d", ca->ca_ipl);
+	return (UNCONF);
+}
+
+int
+bussw_scan(parent, child, args)
+struct device *parent;
+void *child, *args;
+{
+	struct cfdata *cf = child;
+	struct bussw_softc *sc = (struct bussw_softc *)parent;
+	struct confargs oca;
+
+	if (parent->dv_cfdata->cf_driver->cd_indirect) {
+		printf(" indirect devices not supported\n");
+		return 0;
+	}
+
+	bzero(&oca, sizeof oca);
+	oca.ca_offset = cf->cf_loc[0];
+	oca.ca_ipl = cf->cf_loc[1];
+	if (((int)oca.ca_offset != -1) && ISIIOVA(sc->sc_vaddr + oca.ca_offset)) {
+		oca.ca_vaddr = sc->sc_vaddr + oca.ca_offset;
+		oca.ca_paddr = sc->sc_paddr + oca.ca_offset;
+	} else {
+		oca.ca_vaddr = (void *)-1;
+		oca.ca_paddr = (void *)-1;
+	}
+	oca.ca_bustype = BUS_BUSSWITCH;
+	oca.ca_master = (void *)sc->sc_bussw;
+	oca.ca_name = cf->cf_driver->cd_name;
+	if ((*cf->cf_attach->ca_match)(parent, cf, &oca) == 0)
+		return (0);
+	config_attach(parent, cf, &oca, bussw_print);
+	return (1);
+}
+
+int
+busswintr_establish(vec, ih)
+	int vec;
+	struct intrhand *ih;
+{
+	if (vec >= BS_NVEC) {
+		printf("bussw: illegal vector: 0x%x\n", vec);
+		panic("busswintr_establish");
+	}
+	return (intr_establish(BS_VECBASE+vec, ih));
+}
+
+int
+busswabort(eframe)
+	void *eframe;
+{
+	struct frame *frame = eframe;
+
+	struct bussw_softc *sc = (struct bussw_softc *)bussw_cd.cd_devs[0];
+        struct bussw_reg *bs  = sc->sc_bussw;
+	
+	if (bs->bs_intr1 & BS_INTR1_ABORT_INT) {
+		bs->bs_intr1 |= BS_INTR1_ABORT_ICLR;
+		nmihand(frame);
+		return 1;
+	}
+	return 0;
+}
+