Support for the Sun SBus Expansion Subsystem (SUNW,xbox)

4 files changed, 381 insertions, 15 deletions

diff --git a/sys/arch/sparc/dev/sbus.c b/sys/arch/sparc/dev/sbus.c
index 8041246d595..a52f40da98f 100644
--- a/sys/arch/sparc/dev/sbus.c
+++ b/sys/arch/sparc/dev/sbus.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: sbus.c,v 1.7 1998/12/14 17:51:35 deraadt Exp $	*/
+/*	$OpenBSD: sbus.c,v 1.8 1999/04/18 03:24:25 jason Exp $	*/
 /*	$NetBSD: sbus.c,v 1.17 1997/06/01 22:10:39 pk Exp $ */
 
 /*
@@ -59,6 +59,8 @@
 
 #include <sparc/dev/sbusreg.h>
 #include <sparc/dev/sbusvar.h>
+#include <sparc/dev/xboxreg.h>
+#include <sparc/dev/xboxvar.h>
 #include <sparc/dev/dmareg.h>
 
 int sbus_print __P((void *, const char *));
@@ -111,6 +113,18 @@ sbus_match(parent, vcf, aux)
 	if (CPU_ISSUN4)
 		return (0);
 
+	if (ca->ca_bustype == BUS_XBOX) {
+		struct xbox_softc *xsc = (struct xbox_softc *)parent;
+
+		/* Prevent multiple attachments */
+		if (xsc->sc_attached == 0) {
+			xsc->sc_attached = 1;
+			return (1);
+		}
+
+		return (0);
+	}
+
 	return (strcmp(cf->cf_driver->cd_name, ra->ra_name) == 0);
 }
 
@@ -135,7 +149,7 @@ sbus_attach(parent, self, aux)
 	 * XXX there is only one Sbus, for now -- do not know how to
 	 * address children on others
 	 */
-	if (sc->sc_dev.dv_unit > 0) {
+	if (sc->sc_dev.dv_unit > 0 && ca->ca_bustype != BUS_XBOX) {
 		printf(" unsupported\n");
 		return;
 	}
@@ -154,19 +168,29 @@ sbus_attach(parent, self, aux)
 	sc->sc_burst = getpropint(node, "burst-sizes", 0);
 	sc->sc_burst = sc->sc_burst & ~SBUS_BURST_64;
 
-	if (ra->ra_bp != NULL && strcmp(ra->ra_bp->name, "sbus") == 0)
-		oca.ca_ra.ra_bp = ra->ra_bp + 1;
-	else
-		oca.ca_ra.ra_bp = NULL;
-
-	rlen = getproplen(node, "ranges");
-	if (rlen > 0) {
-		sc->sc_nrange = rlen / sizeof(struct rom_range);
-		sc->sc_range =
-			(struct rom_range *)malloc(rlen, M_DEVBUF, M_NOWAIT);
-		if (sc->sc_range == 0)
-			panic("sbus: PROM ranges too large: %d", rlen);
-		(void)getprop(node, "ranges", sc->sc_range, rlen);
+	if (ca->ca_bustype == BUS_XBOX) {
+		struct xbox_softc *xsc = (struct xbox_softc *)parent;
+
+		/* Parent has already done the leg work */
+		sc->sc_nrange = xsc->sc_nrange;
+		sc->sc_range = xsc->sc_range;
+		xsc->sc_attached = 2;
+	}
+	else {
+		if (ra->ra_bp != NULL && strcmp(ra->ra_bp->name, "sbus") == 0)
+			oca.ca_ra.ra_bp = ra->ra_bp + 1;
+		else
+			oca.ca_ra.ra_bp = NULL;
+
+		rlen = getproplen(node, "ranges");
+		if (rlen > 0) {
+			sc->sc_nrange = rlen / sizeof(struct rom_range);
+			sc->sc_range =
+				(struct rom_range *)malloc(rlen, M_DEVBUF, M_NOWAIT);
+			if (sc->sc_range == 0)
+				panic("sbus: PROM ranges too large: %d", rlen);
+			(void)getprop(node, "ranges", sc->sc_range, rlen);
+		}
 	}
 
 	/*
diff --git a/sys/arch/sparc/dev/xbox.c b/sys/arch/sparc/dev/xbox.c
new file mode 100644
index 00000000000..a534e0c4b2e
--- /dev/null
+++ b/sys/arch/sparc/dev/xbox.c
@@ -0,0 +1,207 @@
+/*	$OpenBSD: xbox.c,v 1.1 1999/04/18 03:24:26 jason Exp $	*/
+
+/*
+ * Copyright (c) 1999 Jason L. Wright (jason@thought.net)
+ * 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 Jason L. Wright
+ * 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.
+ */
+
+/*
+ * Driver for the Sun SBus Expansion Subsystem
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/errno.h>
+#include <sys/ioctl.h>
+#include <sys/syslog.h>
+#include <sys/device.h>
+#include <sys/malloc.h>
+
+#include <machine/autoconf.h>
+#include <sparc/cpu.h>
+#include <sparc/sparc/cpuvar.h>
+#include <sparc/dev/sbusvar.h>
+#include <sparc/dev/dmareg.h>	/* for SBUS_BURST_* */
+
+#include <sparc/dev/xboxreg.h>
+#include <sparc/dev/xboxvar.h>
+
+int	xboxmatch	__P((struct device *, void *, void *));
+void	xboxattach	__P((struct device *, struct device *, void *));
+int	xboxprint	__P((void *, const char *));
+void	xbox_fix_range	__P((struct xbox_softc *sc, struct sbus_softc *sbp));
+
+struct cfattach xbox_ca = {
+	sizeof (struct xbox_softc), xboxmatch, xboxattach
+};
+
+struct cfdriver xbox_cd = {
+	NULL, "xbox", DV_IFNET
+};
+
+int
+xboxmatch(parent, vcf, aux)
+	struct device *parent;
+	void *vcf, *aux;
+{
+	struct confargs *ca = aux;
+	register struct romaux *ra = &ca->ca_ra;
+
+	if (strcmp("SUNW,xbox", ra->ra_name))
+		return (0);
+
+	if (!sbus_testdma((struct sbus_softc *)parent, ca))
+		return(0);
+	return (1);
+}
+
+void    
+xboxattach(parent, self, aux)
+	struct device *parent, *self;
+	void *aux;
+{
+	struct xbox_softc *sc = (struct xbox_softc *)self;
+	struct confargs *ca = aux;
+	struct romaux *ra = &ca->ca_ra;
+	int node = ca->ca_ra.ra_node;
+	struct confargs oca;
+	char *s;
+
+	s = getpropstring(node, "model");
+	printf(": model %s", s);
+
+	s = getpropstring(node, "child-present");
+	if (strcmp(s, "false") == 0) {
+		printf(": no devices\n");
+		return;
+	}
+
+	sc->sc_regs.xa_write0 = mapiodev(&ca->ca_ra.ra_reg[0], 0,
+	    sizeof(*sc->sc_regs.xa_write0));
+	sc->sc_regs.xa_errs = mapiodev(&ca->ca_ra.ra_reg[1], 0,
+	    sizeof(*sc->sc_regs.xa_errs));
+	sc->sc_regs.xa_ctl0 = mapiodev(&ca->ca_ra.ra_reg[2], 0,
+	    sizeof(*sc->sc_regs.xa_ctl0));
+	sc->sc_regs.xa_ctl1 = mapiodev(&ca->ca_ra.ra_reg[3], 0,
+	    sizeof(*sc->sc_regs.xa_ctl1));
+	sc->sc_regs.xa_elua = mapiodev(&ca->ca_ra.ra_reg[4], 0,
+	    sizeof(*sc->sc_regs.xa_elua));
+	sc->sc_regs.xa_ella = mapiodev(&ca->ca_ra.ra_reg[5], 0,
+	    sizeof(*sc->sc_regs.xa_ella));
+	sc->sc_regs.xa_rsrv = mapiodev(&ca->ca_ra.ra_reg[6], 0,
+	    sizeof(*sc->sc_regs.xa_rsrv));
+	sc->sc_regs.xb_errs = mapiodev(&ca->ca_ra.ra_reg[7], 0,
+	    sizeof(*sc->sc_regs.xb_errs));
+	sc->sc_regs.xb_ctl0 = mapiodev(&ca->ca_ra.ra_reg[8], 0,
+	    sizeof(*sc->sc_regs.xb_ctl0));
+	sc->sc_regs.xb_ctl1 = mapiodev(&ca->ca_ra.ra_reg[9], 0,
+	    sizeof(*sc->sc_regs.xb_ctl1));
+	sc->sc_regs.xb_elua = mapiodev(&ca->ca_ra.ra_reg[10], 0,
+	    sizeof(*sc->sc_regs.xb_elua));
+	sc->sc_regs.xb_ella = mapiodev(&ca->ca_ra.ra_reg[11], 0,
+	    sizeof(*sc->sc_regs.xb_ella));
+	sc->sc_regs.xb_rsrv = mapiodev(&ca->ca_ra.ra_reg[12], 0,
+	    sizeof(*sc->sc_regs.xb_rsrv));
+
+	if (ra->ra_bp != NULL && strcmp(ra->ra_bp->name, "SUNW,xbox") == 0)
+		oca.ca_ra.ra_bp = ca->ca_ra.ra_bp + 1;
+	else
+		oca.ca_ra.ra_bp = NULL;
+
+	sc->sc_key = getpropint(node, "write0-key", -1);
+	sc->sc_node = node;
+
+	*sc->sc_regs.xa_write0 = (sc->sc_key << 24) | XAC_CTL1_OFFSET |
+	    XBOX_CTL1_CSIE | XBOX_CTL1_TRANSPARENT;
+	*sc->sc_regs.xa_write0 = (sc->sc_key << 24) | XBC_CTL1_OFFSET |
+	    XBOX_CTL1_XSIE | XBOX_CTL1_XSBRE | XBOX_CTL1_XSSE;
+	DELAY(100);
+
+	xbox_fix_range(sc, (struct sbus_softc *)parent);
+
+	sbus_establish(&sc->sc_sd, &sc->sc_dv);
+
+	printf("\n");
+
+	oca = (*ca);
+	oca.ca_bustype = BUS_XBOX;
+	if (ca->ca_ra.ra_bp != NULL)
+		oca.ca_ra.ra_bp = ca->ca_ra.ra_bp + 1;
+	else
+		oca.ca_ra.ra_bp = NULL;
+
+	(void)config_found(&sc->sc_dv, (void *)&oca, xboxprint);
+}
+
+/*
+ * Fix up our address ranges based on parent address spaces.
+ */
+void
+xbox_fix_range(sc, sbp)
+	struct xbox_softc *sc;
+	struct sbus_softc *sbp;
+{
+	int rlen, i, j;
+
+	rlen = getproplen(sc->sc_node, "ranges");
+	sc->sc_range =
+		(struct rom_range *)malloc(rlen, M_DEVBUF, M_NOWAIT);
+	if (sc->sc_range == NULL) {
+		printf("%s: PROM ranges too large: %d\n",
+				sc->sc_dv.dv_xname, rlen);
+		return;
+	}
+	sc->sc_nrange = rlen / sizeof(struct rom_range);
+	(void)getprop(sc->sc_node, "ranges", sc->sc_range, rlen);
+
+	for (i = 0; i < sc->sc_nrange; i++) {
+		for (j = 0; j < sbp->sc_nrange; j++) {
+			if (sc->sc_range[i].pspace == sbp->sc_range[j].cspace) {
+				sc->sc_range[i].poffset +=
+				    sbp->sc_range[j].poffset;
+				sc->sc_range[i].pspace =
+				    sbp->sc_range[j].pspace;
+				break;
+			}
+		}
+	}
+}
+
+int
+xboxprint(args, sbus)
+	void *args;
+	const char *sbus;
+{
+	struct confargs *ca = args;
+
+	if (sbus)
+		printf("%s at %s", ca->ca_ra.ra_name, sbus);
+	return (UNCONF);
+}
diff --git a/sys/arch/sparc/dev/xboxreg.h b/sys/arch/sparc/dev/xboxreg.h
new file mode 100644
index 00000000000..f506b236785
--- /dev/null
+++ b/sys/arch/sparc/dev/xboxreg.h
@@ -0,0 +1,92 @@
+/*	$OpenBSD: xboxreg.h,v 1.1 1999/04/18 03:24:26 jason Exp $	*/
+
+/*
+ * Copyright (c) 1999 Jason L. Wright (jason@thought.net)
+ * 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 Jason L. Wright
+ * 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.
+ */
+
+struct xbox_errs {
+	volatile	u_int32_t xe_errd;	/* error descriptor */
+	volatile	u_int32_t xe_errva;	/* error virtual addr */
+	volatile	u_int32_t xe_stat;	/* status */
+	volatile	u_int32_t xe_ctl0;	/* control reg 0 */
+};
+
+struct xbox_regs {
+	/* XA space */
+	volatile	u_int32_t *xa_write0;	/* write0 reg */
+	struct		xbox_errs *xa_errs;	/* errors */
+	volatile	u_int32_t *xa_ctl0;	/* ctl0 reg */
+	volatile	u_int32_t *xa_ctl1;	/* ctl1 reg */
+	volatile	u_int32_t *xa_elua;
+	volatile	u_int32_t *xa_ella;
+	volatile	u_int32_t *xa_rsrv;	/* reserved */
+
+	/* XB space */
+	struct		xbox_errs *xb_errs;	/* errors */
+	volatile	u_int32_t *xb_ctl0;	/* ctl0 reg */
+	volatile	u_int32_t *xb_ctl1;	/* ctl1 reg */
+	volatile	u_int32_t *xb_elua;
+	volatile	u_int32_t *xb_ella;
+	volatile	u_int32_t *xb_rsrv;	/* reserved */
+};
+
+#define	XAC_CTL0_OFFSET		0x100000	/* control reg 0 */
+#define	XAC_CTL1_OFFSET		0x110000	/* control reg 1 */
+#define	XAC_ELUA_OFFSET		0x120000
+#define	XAC_ELLA_OFFSET		0x130000
+#define	XAC_ERR_EN_OFFSET	0x140000	/* error enable */
+
+#define	XBC_CTL0_OFFSET		0x500000	/* control reg 0 */
+#define	XBC_CTL1_OFFSET		0x510000	/* control reg 1 */
+#define	XBC_ELUA_OFFSET		0x520000
+#define	XBC_ELLA_OFFSET		0x530000
+#define	XBC_ERR_EN_OFFSET	0x540000	/* error enable */
+
+
+/*
+ * Control register 1
+ */
+#define	XBOX_CTL1_CDPTE1	0x8000	/* cable data parity test enb */
+#define	XBOX_CTL1_CRTE		0x4000	/* cable rerun test enb */
+#define	XBOX_CTL1_SRST		0x3000	/* software reset mask */
+#define	XBOX_CTL1_SRST_XARS	0x1000
+#define	XBOX_CTL1_SRST_CRES	0x2000
+#define	XBOX_CTL1_SRST_HRES	0x3000
+#define	XBOX_CTL1_DTE		0x0800	/* dvma test enb */
+#define	XBOX_CTL1_CDPTE		0x0400	/* cable data parity test enb */
+#define	XBOX_CTL1_ITE		0x0200	/* interrupt test enb */
+#define	XBOX_CTL1_CDPTE0	0x0100	/* cable data parity test enb, dpr0 */
+#define	XBOX_CTL1_ELDS		0x00c0	/* error log dvma size */
+#define	XBOX_CTL1_XSSE		0x0020	/* expansion sbus slot select enb */
+#define	XBOX_CTL1_XSBRE		0x0010	/* expansion sbus bus request enb */
+#define	XBOX_CTL1_XSIE		0x0008	/* expansion sbus interrupt enb */
+#define	XBOX_CTL1_ELDE		0x0004	/* error log dvma enable */
+#define	XBOX_CTL1_CSIE		0x0002	/* cable serial interrupt enb */
+#define	XBOX_CTL1_TRANSPARENT	0x0001	/* transparent mode enb */
diff --git a/sys/arch/sparc/dev/xboxvar.h b/sys/arch/sparc/dev/xboxvar.h
new file mode 100644
index 00000000000..9ddf4c1096d
--- /dev/null
+++ b/sys/arch/sparc/dev/xboxvar.h
@@ -0,0 +1,43 @@
+/*	$OpenBSD: xboxvar.h,v 1.1 1999/04/18 03:24:27 jason Exp $	*/
+
+/*
+ * Copyright (c) 1999 Jason L. Wright (jason@thought.net)
+ * 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 Jason L. Wright
+ * 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.
+ */
+
+struct xbox_softc {
+	struct device	sc_dv;			/* base device */
+	struct sbusdev	sc_sd;			/* sbus device */
+	u_int32_t	sc_key;			/* device key */
+	int		sc_node;		/* sbus node */
+	int		sc_attached;		/* has sbus attached? */
+	int		sc_nrange;		/* number of ranges */
+	struct		rom_range *sc_range;	/* address ranges */
+	struct		xbox_regs sc_regs;	/* register pointers */
+};