6929f9f471
port before auto configuration. Boot loaders (pbsdboot and hpcboot) are responsible to enable the port because the kernel can't enable serial port for console any more.
146 lines
4.2 KiB
C
146 lines
4.2 KiB
C
/* $NetBSD: cmu.c,v 1.9 2002/02/02 10:50:08 takemura Exp $ */
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/*-
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* Copyright (c) 1999 SASAKI Takesi
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* Copyright (c) 1999, 2000, 2002 PocketBSD Project. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the PocketBSD project
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* and its contributors.
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* 4. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <mips/cpuregs.h>
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#include <machine/bus.h>
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#include <machine/debug.h>
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#include "opt_vr41xx.h"
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#include <hpcmips/vr/vr.h>
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#include <hpcmips/vr/vrcpudef.h>
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#include <hpcmips/vr/vripif.h>
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#include <hpcmips/vr/vripreg.h>
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#include <hpcmips/vr/cmureg.h>
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#include <machine/config_hook.h>
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struct vrcmu_softc {
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struct device sc_dev;
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bus_space_tag_t sc_iot;
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bus_space_handle_t sc_ioh;
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config_hook_tag sc_hardpower;
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int sc_save;
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struct vrcmu_chipset_tag sc_chipset;
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};
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int vrcmu_match(struct device *, struct cfdata *, void *);
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void vrcmu_attach(struct device *, struct device *, void *);
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int vrcmu_supply(vrcmu_chipset_tag_t, u_int16_t, int);
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int vrcmu_hardpower(void *, int, long, void *);
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struct cfattach vrcmu_ca = {
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sizeof(struct vrcmu_softc), vrcmu_match, vrcmu_attach
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};
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int
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vrcmu_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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return (2); /* 1st attach group of vrip */
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}
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void
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vrcmu_attach(struct device *parent, struct device *self, void *aux)
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{
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struct vrip_attach_args *va = aux;
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struct vrcmu_softc *sc = (void *)self;
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sc->sc_iot = va->va_iot;
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sc->sc_chipset.cc_sc = sc;
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sc->sc_chipset.cc_clock = vrcmu_supply;
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if (bus_space_map(sc->sc_iot, va->va_addr, va->va_size,
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0 /* no flags */, &sc->sc_ioh)) {
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printf(": can't map i/o space\n");
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return;
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}
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printf ("\n");
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vrip_register_cmu(va->va_vc, &sc->sc_chipset);
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sc->sc_hardpower = config_hook(CONFIG_HOOK_PMEVENT,
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CONFIG_HOOK_PMEVENT_HARDPOWER,
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CONFIG_HOOK_SHARE,
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vrcmu_hardpower, sc);
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}
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int
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vrcmu_supply(vrcmu_chipset_tag_t cc, u_int16_t mask, int onoff)
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{
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struct vrcmu_softc *sc = cc->cc_sc;
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u_int16_t reg;
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reg = bus_space_read_2(sc->sc_iot, sc->sc_ioh, 0);
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#ifdef VRCMU_VERBOSE
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printf("cmu register(enter):");
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dbg_bit_print(reg);
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#endif
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if (onoff)
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reg |= mask;
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else
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reg &= ~mask;
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bus_space_write_2(sc->sc_iot, sc->sc_ioh, 0, reg);
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#ifdef VRCMU_VERBOSE
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printf("cmu register(exit) :");
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dbg_bit_print(reg);
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#endif
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return (0);
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}
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int
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vrcmu_hardpower(void *ctx, int type, long id, void *msg)
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{
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struct vrcmu_softc *sc = ctx;
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int why = (int)msg;
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switch (why) {
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case PWR_STANDBY:
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case PWR_SUSPEND:
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sc->sc_save = bus_space_read_2(sc->sc_iot, sc->sc_ioh, 0);
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bus_space_write_2(sc->sc_iot, sc->sc_ioh, 0, 0);
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break;
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case PWR_RESUME:
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bus_space_write_2(sc->sc_iot, sc->sc_ioh, 0, sc->sc_save);
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break;
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}
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return (0);
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}
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