diff options
Diffstat (limited to 'sys/alpha/tlsb/gbus.c')
| -rw-r--r-- | sys/alpha/tlsb/gbus.c | 156 |
1 files changed, 0 insertions, 156 deletions
diff --git a/sys/alpha/tlsb/gbus.c b/sys/alpha/tlsb/gbus.c deleted file mode 100644 index 092423b8972c..000000000000 --- a/sys/alpha/tlsb/gbus.c +++ /dev/null @@ -1,156 +0,0 @@ -/* $NetBSD: gbus.c,v 1.8 1998/05/13 22:13:35 thorpej Exp $ */ -/*- - * Copyright (c) 1997, 2000 by Matthew Jacob - * NASA AMES Research Center. - * 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 immediately at the beginning of the file, without modification, - * 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, 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. - */ - -/* - * Autoconfiguration and support routines for the Gbus: the internal - * bus on AlphaServer CPU modules. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#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 <machine/pte.h> - -#include <alpha/tlsb/gbusreg.h> -#include <alpha/tlsb/gbusvar.h> - -#include <alpha/tlsb/tlsbreg.h> -#include <alpha/tlsb/tlsbvar.h> - -extern int cputype; - -#define KV(_addr) ((caddr_t)ALPHA_PHYS_TO_K0SEG((_addr))) - -/* - * The structure used to attach devices to the Gbus. - */ -struct gbus_device { - const char* gd_name; - int gd_offset; -}; - -#define DEVTOGBUS(dev) ((struct gbus_device*) device_get_ivars(dev)) - -struct gbus_device gbus_children[] = { - { "zsc", GBUS_DUART0_OFFSET }, - { "mcclock", GBUS_CLOCK_OFFSET }, - { NULL, 0 }, -}; - -static devclass_t gbus_devclass; - -/* - * Device methods - */ -static int gbus_probe(device_t); -static int gbus_print_child(device_t, device_t); -static int gbus_read_ivar(device_t, device_t, int, u_long *); - -static device_method_t gbus_methods[] = { - /* Device interface */ - DEVMETHOD(device_probe, gbus_probe), - DEVMETHOD(device_attach, bus_generic_attach), - DEVMETHOD(device_detach, bus_generic_detach), - DEVMETHOD(device_shutdown, bus_generic_shutdown), - - /* Bus interface */ - DEVMETHOD(bus_print_child, gbus_print_child), - DEVMETHOD(bus_read_ivar, gbus_read_ivar), - DEVMETHOD(bus_write_ivar, bus_generic_write_ivar), - DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), - DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), - - { 0, 0 } -}; - -static driver_t gbus_driver = { - "gbus", gbus_methods, 1 -}; - -/* - * At 'probe' time, we add all the devices which we know about to the - * bus. The generic attach routine will probe and attach them if they - * are alive. - */ -static int -gbus_probe(device_t dev) -{ - device_t child; - struct gbus_device *gdev; - - /* - * Make sure we're looking for a Gbus. - * A Gbus can only be a child of a TLSB CPU Node. - */ - if (!TLDEV_ISCPU(tlsb_get_dtype(device_get_parent(dev)))) { - return ENXIO; - } - - for (gdev = gbus_children; gdev->gd_name; gdev++) { - child = device_add_child(dev, gdev->gd_name, -1); - device_set_ivars(child, gdev); - } - - return (0); -} - -static int -gbus_print_child(device_t bus, device_t dev) -{ - struct gbus_device* gdev = DEVTOGBUS(dev); - int retval = 0; - - retval += bus_print_child_header(bus, dev); - retval += printf(" on %s offset 0x%x\n", device_get_nameunit(bus), - gdev->gd_offset); - - return (retval); -} - -static int -gbus_read_ivar(device_t bus, device_t dev, - int index, u_long* result) -{ - struct gbus_device* gdev = DEVTOGBUS(dev); - - switch (index) { - case GBUS_IVAR_OFFSET: - *result = gdev->gd_offset; - break; - } - return ENOENT; -} -DRIVER_MODULE(gbus, tlsbcpu, gbus_driver, gbus_devclass, 0, 0); |