Add support for TurboChannel alphas (DEC 3000/300 and 3000/500).

Obtained from: NetBSD
Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>

1 files changed, 115 insertions, 0 deletions

diff --git a/sys/alpha/tc/tcasic.c b/sys/alpha/tc/tcasic.c
new file mode 100644
index 000000000000..1dd4feed2ca3
--- /dev/null
+++ b/sys/alpha/tc/tcasic.c
@@ -0,0 +1,115 @@
+/* $Id$ */
+/* from $NetBSD: tcasic.c,v 1.23 1998/05/14 00:01:31 thorpej Exp $ */
+
+/*
+ * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Chris G. Demetriou
+ * 
+ * Permission to use, copy, modify and distribute this software and
+ * its documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ * 
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 
+ * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ * 
+ * Carnegie Mellon requests users of this software to return to
+ *
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ */
+
+#include "opt_cpu.h"
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/bus.h>
+
+#include <machine/rpb.h>
+
+/*#include <alpha/tc/dwlpxreg.h>*/
+
+#define KV(pa)			ALPHA_PHYS_TO_K0SEG(pa)
+
+static devclass_t	tcasic_devclass;
+static device_t		tcasic0;		/* XXX only one for now */
+
+struct tcasic_softc {
+	vm_offset_t	dmem_base;	/* dense memory */
+	vm_offset_t	smem_base;	/* sparse memory */
+	vm_offset_t	io_base;	/* sparse i/o */
+	vm_offset_t	cfg_base;	/* sparse pci config */
+};
+
+#define TCASIC_SOFTC(dev)	(struct tcasic_softc*) device_get_softc(dev)
+
+static int tcasic_probe(device_t dev);
+static int tcasic_attach(device_t dev);
+static void tcasic_print_child(device_t bus, device_t dev);
+
+static device_method_t tcasic_methods[] = {
+	/* Device interface */
+	DEVMETHOD(device_probe,		tcasic_probe),
+	DEVMETHOD(device_attach,	tcasic_attach),
+	DEVMETHOD(bus_print_child,      tcasic_print_child),
+	{ 0, 0 }
+};
+
+static driver_t tcasic_driver = {
+	"tcasic",
+	tcasic_methods,
+	DRIVER_TYPE_MISC,
+	sizeof(struct tcasic_softc),
+};
+
+extern device_t tc0;
+static int
+tcasic_probe(device_t dev)
+{
+	if (tcasic0)
+		return ENXIO;
+	if((hwrpb->rpb_type != ST_DEC_3000_300) &&
+	   (hwrpb->rpb_type != ST_DEC_3000_500))
+		return ENXIO;
+	tcasic0 = dev;
+	device_set_desc(dev, "Turbochannel Host Bus Adapter");
+	tc0 = device_add_child(dev, "tc", 0, 0);
+	return 0;
+}
+
+static int
+tcasic_attach(device_t dev)
+{
+	struct tcasic_softc* sc = TCASIC_SOFTC(dev);
+	device_t parent = device_get_parent(dev);
+	vm_offset_t regs;
+	tcasic0 = dev;
+
+/*	chipset = tcasic_chipset;*/
+	chipset.intrdev = dev;
+	device_probe_and_attach(tc0);
+	return 0;
+}
+
+static void
+tcasic_print_child(device_t bus, device_t dev)
+{
+        printf(" at %s%d",
+               device_get_name(bus), device_get_unit(bus));
+}
+
+
+
+DRIVER_MODULE(tcasic, root, tcasic_driver, tcasic_devclass, 0, 0);
+