/* $NetBSD: com_opb.c,v 1.25 2021/02/27 20:43:58 rin Exp $ */ /* * Copyright 2001 Wasabi Systems, Inc. * All rights reserved. * * Written by Eduardo Horvath and Simon Burge for Wasabi Systems, Inc. * * 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 for the NetBSD Project by * Wasabi Systems, Inc. * 4. The name of Wasabi Systems, Inc. may not be used to endorse * or promote products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC * 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. */ /* * Copyright (c) 1998 * Matthias Drochner. 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 ``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: com_opb.c,v 1.25 2021/02/27 20:43:58 rin Exp $"); #include "com.h" #include <sys/param.h> #include <sys/device.h> #include <sys/tty.h> #include <sys/systm.h> #include <sys/cpu.h> #include <lib/libkern/libkern.h> #include <powerpc/ibm4xx/cpu.h> #include <powerpc/ibm4xx/dev/opbvar.h> #include <powerpc/ibm4xx/dev/comopbvar.h> #if (NCOM > 0) #include <dev/ic/comreg.h> #include <dev/ic/comvar.h> #endif struct com_opb_softc { struct com_softc sc_com; void *sc_ih; }; static int com_opb_probe(device_t, cfdata_t , void *); static void com_opb_attach(device_t, device_t, void *); CFATTACH_DECL_NEW(com_opb, sizeof(struct com_opb_softc), com_opb_probe, com_opb_attach, NULL, NULL); int com_opb_probe(device_t parent, cfdata_t cf, void *aux) { struct opb_attach_args *oaa = aux; /* match only com devices */ if (strcmp(oaa->opb_name, cf->cf_name) != 0) return 0; return (1); } void com_opb_attach(device_t parent, device_t self, void *aux) { struct com_opb_softc *msc = device_private(self); struct com_softc *sc = &msc->sc_com; struct opb_attach_args *oaa = aux; prop_number_t freq; bus_space_handle_t ioh; sc->sc_dev = self; /* XXX console check */ bus_space_map(oaa->opb_bt, oaa->opb_addr, COM_NPORTS, 0, &ioh); com_init_regs(&sc->sc_regs, oaa->opb_bt, ioh, oaa->opb_addr); freq = prop_dictionary_get(device_properties(sc->sc_dev), "clock-frequency"); if (freq == NULL) { aprint_error(": unable to get clock-frequency property\n"); return; } KASSERT(prop_object_type(freq) == PROP_TYPE_NUMBER); sc->sc_frequency = (int) prop_number_integer_value(freq); com_attach_subr(sc); intr_establish_xname(oaa->opb_irq, IST_LEVEL, IPL_SERIAL, comintr, sc, device_xname(self)); } /* * com_opb_cnattach: * Initialize the system console. */ void com_opb_cnattach(int com_freq, int conaddr, int conspeed, int conmode) { static int attached = 0; if (attached) return; attached = 1; #if (NCOM > 0) /* We *know* the com-console attaches to opb */ if (comcnattach(opb_get_bus_space_tag(), conaddr, conspeed, com_freq, COM_TYPE_NORMAL, conmode)) panic("can't init serial console @%x", conaddr); else return; #endif panic("console device missing -- serial console not in kernel"); /* Of course, this is moot if there is no console... */ } /* * com_opb_device_register: */ void com_opb_device_register(device_t dev, int frequency) { /* Set the frequency of the on-chip UART. */ prop_number_t pn = prop_number_create_integer(frequency); KASSERT(pn != NULL); if (prop_dictionary_set(device_properties(dev), "clock-frequency", pn) == false) { printf("WARNING: unable to set clock-frequency " "property for %s\n", device_xname(dev)); } prop_object_release(pn); }
