scc_bfe_sbus.c revision 167822
1157299Smarcel/*- 2157299Smarcel * Copyright (c) 2004-2006 Marcel Moolenaar 3157299Smarcel * All rights reserved. 4157299Smarcel * 5157299Smarcel * Redistribution and use in source and binary forms, with or without 6157299Smarcel * modification, are permitted provided that the following conditions 7157299Smarcel * are met: 8157299Smarcel * 9157299Smarcel * 1. Redistributions of source code must retain the above copyright 10157299Smarcel * notice, this list of conditions and the following disclaimer. 11157299Smarcel * 2. Redistributions in binary form must reproduce the above copyright 12157299Smarcel * notice, this list of conditions and the following disclaimer in the 13157299Smarcel * documentation and/or other materials provided with the distribution. 14157299Smarcel * 15157299Smarcel * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16157299Smarcel * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17157299Smarcel * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18157299Smarcel * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19157299Smarcel * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20157299Smarcel * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21157299Smarcel * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22157299Smarcel * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23157299Smarcel * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24157299Smarcel * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25157299Smarcel */ 26157299Smarcel 27157299Smarcel#include <sys/cdefs.h> 28157299Smarcel__FBSDID("$FreeBSD: head/sys/dev/scc/scc_bfe_sbus.c 167822 2007-03-22 23:45:25Z marcel $"); 29157299Smarcel 30157299Smarcel#include <sys/param.h> 31157299Smarcel#include <sys/systm.h> 32157299Smarcel#include <sys/bus.h> 33157299Smarcel#include <sys/conf.h> 34157299Smarcel#include <sys/kernel.h> 35157299Smarcel#include <sys/module.h> 36157299Smarcel 37157299Smarcel#include <dev/ofw/ofw_bus.h> 38157299Smarcel 39157299Smarcel#include <machine/bus.h> 40157299Smarcel#include <sys/rman.h> 41157299Smarcel#include <machine/resource.h> 42157299Smarcel 43157299Smarcel#include <dev/scc/scc_bfe.h> 44157299Smarcel 45157351Smarcel#define SBUS_REGSHFT 1 46157351Smarcel#define SBUS_RCLK 307200 47157351Smarcel 48157299Smarcelstatic int 49157299Smarcelscc_sbus_probe(device_t dev) 50157299Smarcel{ 51157299Smarcel struct scc_softc *sc; 52157299Smarcel const char *nm; 53157299Smarcel 54157299Smarcel sc = device_get_softc(dev); 55157299Smarcel nm = ofw_bus_get_name(dev); 56157299Smarcel if (!strcmp(nm, "zs")) { 57157299Smarcel device_set_desc(dev, "Zilog Z8530 dual channel SCC"); 58157299Smarcel sc->sc_class = &scc_z8530_class; 59167822Smarcel return (scc_bfe_probe(dev, SBUS_REGSHFT, SBUS_RCLK, 0)); 60157299Smarcel } 61157299Smarcel return (ENXIO); 62157299Smarcel} 63157299Smarcel 64157299Smarcelstatic device_method_t scc_sbus_methods[] = { 65157299Smarcel /* Device interface */ 66157299Smarcel DEVMETHOD(device_probe, scc_sbus_probe), 67157299Smarcel DEVMETHOD(device_attach, scc_bfe_attach), 68157299Smarcel DEVMETHOD(device_detach, scc_bfe_detach), 69157299Smarcel 70157299Smarcel DEVMETHOD(bus_alloc_resource, scc_bus_alloc_resource), 71157299Smarcel DEVMETHOD(bus_release_resource, scc_bus_release_resource), 72157299Smarcel DEVMETHOD(bus_get_resource, scc_bus_get_resource), 73157299Smarcel DEVMETHOD(bus_read_ivar, scc_bus_read_ivar), 74157299Smarcel DEVMETHOD(bus_setup_intr, scc_bus_setup_intr), 75157299Smarcel DEVMETHOD(bus_teardown_intr, scc_bus_teardown_intr), 76157299Smarcel DEVMETHOD(bus_print_child, bus_generic_print_child), 77157299Smarcel DEVMETHOD(bus_driver_added, bus_generic_driver_added), 78157299Smarcel { 0, 0 } 79157299Smarcel}; 80157299Smarcel 81157299Smarcelstatic driver_t scc_sbus_driver = { 82157299Smarcel scc_driver_name, 83157299Smarcel scc_sbus_methods, 84157299Smarcel sizeof(struct scc_softc), 85157299Smarcel}; 86157299Smarcel 87157340SmarcelDRIVER_MODULE(scc, fhc, scc_sbus_driver, scc_devclass, 0, 0); 88157299SmarcelDRIVER_MODULE(scc, sbus, scc_sbus_driver, scc_devclass, 0, 0); 89