[src/trunk]: src/sys/arch/sparc64/dev Add ofppb to match ofpci.

[eeh <eeh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/04ebf969b1d3
branches:  trunk
changeset: 526588:04ebf969b1d3
user:      eeh <eeh%NetBSD.org@localhost>
date:      Mon May 06 19:40:20 2002 +0000

description:
Add ofppb to match ofpci.

diffstat:

 sys/arch/sparc64/dev/ofppb.c |  143 +++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 143 insertions(+), 0 deletions(-)

diffs (147 lines):

diff -r 124c272b76fd -r 04ebf969b1d3 sys/arch/sparc64/dev/ofppb.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/sparc64/dev/ofppb.c      Mon May 06 19:40:20 2002 +0000
@@ -0,0 +1,143 @@
+/*     $NetBSD: ofppb.c,v 1.1 2002/05/06 19:40:20 eeh Exp $    */
+
+/*
+ * Copyright (c) 2002 Eduardo Horvath.  All rights reserved.
+ * Copyright (c) 1996, 1998 Christopher G. Demetriou.  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 Christopher G. Demetriou
+ *     for the NetBSD Project.
+ * 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/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: ofppb.c,v 1.1 2002/05/06 19:40:20 eeh Exp $");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/device.h>
+
+#include <dev/pci/pcireg.h>
+#include <dev/pci/pcivar.h>
+#include <dev/pci/ppbreg.h>
+
+#include <sparc64/dev/ofpcivar.h>
+
+int    ofppbmatch __P((struct device *, struct cfdata *, void *));
+void   ofppbattach __P((struct device *, struct device *, void *));
+
+struct cfattach ofppb_ca = {
+       sizeof(struct device), ofppbmatch, ofppbattach
+};
+
+int    ofppbprint __P((void *, const char *pnp));
+
+int
+ofppbmatch(parent, match, aux)
+       struct device *parent;
+       struct cfdata *match;
+       void *aux;
+{
+       struct pci_attach_args *pa = aux;
+
+       /*
+        * Check the ID register to see that it's a PCI bridge.
+        * If it is, we assume that we can deal with it; it _should_
+        * work in a standardized way...
+        */
+       if (PCI_CLASS(pa->pa_class) == PCI_CLASS_BRIDGE &&
+           PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_BRIDGE_PCI)
+               return (1);
+
+       return (0);
+}
+
+void
+ofppbattach(parent, self, aux)
+       struct device *parent, *self;
+       void *aux;
+{
+       struct pci_attach_args *pa = aux;
+       pci_chipset_tag_t pc = pa->pa_pc;
+       struct ofpcibus_attach_args pba;
+       pcireg_t busdata;
+       char devinfo[256];
+
+       pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo);
+       printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class));
+
+       busdata = pci_conf_read(pc, pa->pa_tag, PPB_REG_BUSINFO);
+
+       if (PPB_BUSINFO_SECONDARY(busdata) == 0) {
+               printf("%s: not configured by system firmware\n",
+                   self->dv_xname);
+               return;
+       }
+
+#if 0
+       /*
+        * XXX can't do this, because we're not given our bus number
+        * (we shouldn't need it), and because we've no way to
+        * decompose our tag.
+        */
+       /* sanity check. */
+       if (pa->pa_bus != PPB_BUSINFO_PRIMARY(busdata))
+               panic("ofppbattach: bus in tag (%d) != bus in reg (%d)",
+                   pa->pa_bus, PPB_BUSINFO_PRIMARY(busdata));
+#endif
+
+       /*
+        * Attach the PCI bus than hangs off of it.
+        *
+        * XXX Don't pass-through Memory Read Multiple.  Should we?
+        * XXX Consult the spec...
+        */
+       pba.opba_pba.pba_busname = "ofpci";     /* XXX should be pci_ppb attachment */
+       pba.opba_pba.pba_iot = pa->pa_iot;
+       pba.opba_pba.pba_memt = pa->pa_memt;
+       pba.opba_pba.pba_dmat = pa->pa_dmat;
+       pba.opba_pba.pba_pc = pc;
+       pba.opba_pba.pba_flags = pa->pa_flags & ~PCI_FLAGS_MRM_OKAY;
+       pba.opba_pba.pba_bus = PPB_BUSINFO_SECONDARY(busdata);
+       pba.opba_pba.pba_intrswiz = pa->pa_intrswiz;
+       pba.opba_pba.pba_intrtag = pa->pa_intrtag;
+       pba.opba_node = PCITAG_NODE(pa->pa_tag);
+
+       config_found(self, &pba, ofppbprint);
+}
+
+int
+ofppbprint(aux, pnp)
+       void *aux;
+       const char *pnp;
+{
+       struct pcibus_attach_args *pba = aux;
+
+       /* only PCIs can attach to PPBs; easy. */
+       if (pnp)
+               printf("pci at %s", pnp);
+       printf(" bus %d", pba->pba_bus);
+       return (UNCONF);
+}