Add AlphaServer 2000 (demi-sable), 2100 (sable), and 2100A (lynx) support.

Only PCI and on-board ISA peripherials are supported at this time.

This support has been only lightly tested due to a lack of response to my
call for testers on the freebsd-alpha mailing list.  It works quite well
on the one AS2100 on which it has been tested, but it may not work on
an AS2100A and should therefore be regarded as experimental.

1 files changed, 87 insertions, 0 deletions

diff --git a/sys/alpha/pci/t2_pci.c b/sys/alpha/pci/t2_pci.c
new file mode 100644
index 0000000..2213bb3
--- /dev/null
+++ b/sys/alpha/pci/t2_pci.c
@@ -0,0 +1,87 @@
+/*-
+ * Copyright (c) 2000 Doug Rabson
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPELCAL, 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.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/bus.h>
+#include <machine/bus.h>
+#include <sys/rman.h>
+#include <pci/pcivar.h>
+
+static devclass_t	pcib_devclass;
+
+static int
+t2_pcib_probe(device_t dev)
+{
+	device_t child;
+
+	device_set_desc(dev, "T2 PCI host bus adapter");
+
+	child = device_add_child(dev, "pci", 0);
+	device_set_ivars(child, 0);
+
+	return 0;
+}
+
+static int
+t2_pcib_read_ivar(device_t dev, device_t child, int which, u_long *result)
+{
+	if (which == PCIB_IVAR_HOSE) {
+		*result = 0;
+		return 0;
+	}
+	return ENOENT;
+}
+
+static device_method_t t2_pcib_methods[] = {
+	/* Device interface */
+	DEVMETHOD(device_probe,		t2_pcib_probe),
+	DEVMETHOD(device_attach,	bus_generic_attach),
+
+	/* Bus interface */
+	DEVMETHOD(bus_print_child,	bus_generic_print_child),
+	DEVMETHOD(bus_read_ivar,	t2_pcib_read_ivar),
+	DEVMETHOD(bus_alloc_resource,	bus_generic_alloc_resource),
+	DEVMETHOD(bus_release_resource,	bus_generic_release_resource),
+	DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
+	DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
+	DEVMETHOD(bus_setup_intr,	bus_generic_setup_intr),
+	DEVMETHOD(bus_teardown_intr,	bus_generic_teardown_intr),
+
+	{ 0, 0 }
+};
+
+static driver_t t2_pcib_driver = {
+	"pcib",
+	t2_pcib_methods,
+	1,
+};
+
+DRIVER_MODULE(pcib, t2, t2_pcib_driver, pcib_devclass, 0, 0);