160 lines
4.6 KiB
C
160 lines
4.6 KiB
C
/* $NetBSD: femi.c,v 1.5 2002/10/01 19:24:48 thorpej Exp $ */
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/*
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* Copyright 2002 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Steve C. Woodford for Wasabi Systems, Inc.
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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 for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* SH-5 FEMI Bus Attachment Glue
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*/
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <machine/cpu.h>
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#include <machine/bus.h>
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#include <sh5/dev/superhywayvar.h>
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#include <sh5/dev/femivar.h>
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#include "locators.h"
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static int femimatch(struct device *, struct cfdata *, void *);
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static void femiattach(struct device *, struct device *, void *);
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static int femiprint(void *, const char *);
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static int femisubmatch(struct device *, struct cfdata *, void *);
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struct femi_softc {
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struct device sc_dev;
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bus_space_tag_t sc_bust;
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bus_dma_tag_t sc_dmat;
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bus_addr_t sc_base;
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bus_addr_t sc_top;
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};
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CFATTACH_DECL(femi, sizeof(struct femi_softc),
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femimatch, femiattach, NULL, NULL)
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extern struct cfdriver femi_cd;
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#define FEMI_MODULE_ID 0x2185
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/*ARGSUSED*/
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static int
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femimatch(struct device *parent, struct cfdata *cf, void *args)
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{
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struct superhyway_attach_args *sa = args;
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bus_space_handle_t bh;
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u_int64_t vcr;
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if (strcmp(sa->sa_name, femi_cd.cd_name))
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return (0);
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sa->sa_pport = 0;
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bus_space_map(sa->sa_bust,
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SUPERHYWAY_PPORT_TO_BUSADDR(cf->cf_loc[SUPERHYWAYCF_PPORT]),
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SUPERHYWAY_REG_SZ, 0, &bh);
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vcr = bus_space_read_8(sa->sa_bust, bh, SUPERHYWAY_REG_VCR);
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bus_space_unmap(sa->sa_bust, bh, SUPERHYWAY_REG_SZ);
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if (SUPERHYWAY_VCR_MOD_ID(vcr) != FEMI_MODULE_ID)
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return (0);
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sa->sa_pport = cf->cf_loc[SUPERHYWAYCF_PPORT];
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return (1);
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}
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/*ARGSUSED*/
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static void
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femiattach(struct device *parent, struct device *self, void *args)
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{
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struct superhyway_attach_args *sa = args;
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struct femi_softc *sc = (struct femi_softc *)self;
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bus_space_handle_t bh;
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u_int64_t vcr;
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bus_space_map(sa->sa_bust, SUPERHYWAY_PPORT_TO_BUSADDR(sa->sa_pport),
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SUPERHYWAY_REG_SZ, 0, &bh);
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vcr = bus_space_read_8(sa->sa_bust, bh, SUPERHYWAY_REG_VCR);
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bus_space_unmap(sa->sa_bust, bh, SUPERHYWAY_REG_SZ);
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sc->sc_bust = sa->sa_bust;
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sc->sc_dmat = sa->sa_dmat;
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sc->sc_base = 0;
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sc->sc_top = 0x08000000;
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printf(": Flash/External Memory Interface, Version 0x%x\n",
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(int)SUPERHYWAY_VCR_MOD_VERS(vcr));
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printf("%s: Base Address: 0x%lx, Length: 0x%lx\n",
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sc->sc_dev.dv_xname, sc->sc_base, sc->sc_top - sc->sc_base);
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config_search(femisubmatch, self, NULL);
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}
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static int
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femiprint(void *arg, const char *cp)
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{
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struct femi_attach_args *fa = arg;
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printf(" offset 0x%lx", fa->fa_offset - fa->_fa_base);
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return (UNCONF);
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}
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static int
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femisubmatch(struct device *dev, struct cfdata *cf, void *arg)
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{
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struct femi_softc *sc = (struct femi_softc *) dev;
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struct femi_attach_args fa;
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fa.fa_bust = sc->sc_bust;
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fa.fa_dmat = sc->sc_dmat;
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fa.fa_offset = (bus_addr_t) cf->cf_loc[FEMICF_OFFSET];
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fa.fa_offset += sc->sc_base;
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fa._fa_base = sc->sc_base;
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if (config_match(dev, cf, &fa)) {
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config_attach(dev, cf, &fa, femiprint);
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return (1);
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}
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return (0);
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}
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