memc_68k.c revision 1.1.2.2
1 1.1.2.2 nathanw /* $NetBSD: memc_68k.c,v 1.1.2.2 2002/02/28 04:10:50 nathanw Exp $ */ 2 1.1.2.2 nathanw 3 1.1.2.2 nathanw /*- 4 1.1.2.2 nathanw * Copyright (c) 2000, 2002 The NetBSD Foundation, Inc. 5 1.1.2.2 nathanw * All rights reserved. 6 1.1.2.2 nathanw * 7 1.1.2.2 nathanw * This code is derived from software contributed to The NetBSD Foundation 8 1.1.2.2 nathanw * by Steve C. Woodford. 9 1.1.2.2 nathanw * 10 1.1.2.2 nathanw * Redistribution and use in source and binary forms, with or without 11 1.1.2.2 nathanw * modification, are permitted provided that the following conditions 12 1.1.2.2 nathanw * are met: 13 1.1.2.2 nathanw * 1. Redistributions of source code must retain the above copyright 14 1.1.2.2 nathanw * notice, this list of conditions and the following disclaimer. 15 1.1.2.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright 16 1.1.2.2 nathanw * notice, this list of conditions and the following disclaimer in the 17 1.1.2.2 nathanw * documentation and/or other materials provided with the distribution. 18 1.1.2.2 nathanw * 3. All advertising materials mentioning features or use of this software 19 1.1.2.2 nathanw * must display the following acknowledgement: 20 1.1.2.2 nathanw * This product includes software developed by the NetBSD 21 1.1.2.2 nathanw * Foundation, Inc. and its contributors. 22 1.1.2.2 nathanw * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.1.2.2 nathanw * contributors may be used to endorse or promote products derived 24 1.1.2.2 nathanw * from this software without specific prior written permission. 25 1.1.2.2 nathanw * 26 1.1.2.2 nathanw * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.1.2.2 nathanw * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.1.2.2 nathanw * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.1.2.2 nathanw * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.1.2.2 nathanw * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.1.2.2 nathanw * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.1.2.2 nathanw * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.1.2.2 nathanw * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.1.2.2 nathanw * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.1.2.2 nathanw * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.1.2.2 nathanw * POSSIBILITY OF SUCH DAMAGE. 37 1.1.2.2 nathanw */ 38 1.1.2.2 nathanw 39 1.1.2.2 nathanw /* 40 1.1.2.2 nathanw * Support for the MEMECC and MEMC40 memory controllers on MVME68K 41 1.1.2.2 nathanw */ 42 1.1.2.2 nathanw 43 1.1.2.2 nathanw #include <sys/param.h> 44 1.1.2.2 nathanw #include <sys/kernel.h> 45 1.1.2.2 nathanw #include <sys/systm.h> 46 1.1.2.2 nathanw #include <sys/device.h> 47 1.1.2.2 nathanw #include <sys/malloc.h> 48 1.1.2.2 nathanw 49 1.1.2.2 nathanw #include <machine/cpu.h> 50 1.1.2.2 nathanw #include <machine/bus.h> 51 1.1.2.2 nathanw 52 1.1.2.2 nathanw #include <mvme68k/dev/mainbus.h> 53 1.1.2.2 nathanw 54 1.1.2.2 nathanw #include <dev/mvme/memcvar.h> 55 1.1.2.2 nathanw #include <dev/mvme/memcreg.h> 56 1.1.2.2 nathanw #include <dev/mvme/pcctwovar.h> 57 1.1.2.2 nathanw #include <dev/mvme/pcctworeg.h> 58 1.1.2.2 nathanw 59 1.1.2.2 nathanw 60 1.1.2.2 nathanw int memc_match(struct device *, struct cfdata *, void *); 61 1.1.2.2 nathanw void memc_attach(struct device *, struct device *, void *); 62 1.1.2.2 nathanw 63 1.1.2.2 nathanw struct cfattach memc_ca = { 64 1.1.2.2 nathanw sizeof(struct memc_softc), memc_match, memc_attach 65 1.1.2.2 nathanw }; 66 1.1.2.2 nathanw 67 1.1.2.2 nathanw extern struct cfdriver memc_cd; 68 1.1.2.2 nathanw 69 1.1.2.2 nathanw 70 1.1.2.2 nathanw /* ARGSUSED */ 71 1.1.2.2 nathanw int 72 1.1.2.2 nathanw memc_match(parent, cf, aux) 73 1.1.2.2 nathanw struct device *parent; 74 1.1.2.2 nathanw struct cfdata *cf; 75 1.1.2.2 nathanw void *aux; 76 1.1.2.2 nathanw { 77 1.1.2.2 nathanw struct mainbus_attach_args *ma = aux; 78 1.1.2.2 nathanw bus_space_handle_t bh; 79 1.1.2.2 nathanw u_int8_t chipid; 80 1.1.2.2 nathanw int rv; 81 1.1.2.2 nathanw 82 1.1.2.2 nathanw #ifdef MVME68K 83 1.1.2.2 nathanw if (machineid != MVME_167 && machineid != MVME_177 && 84 1.1.2.2 nathanw machineid != MVME_162 && machineid != MVME_172) 85 1.1.2.2 nathanw return (0); 86 1.1.2.2 nathanw #endif 87 1.1.2.2 nathanw 88 1.1.2.2 nathanw if (strcmp(ma->ma_name, memc_cd.cd_name)) 89 1.1.2.2 nathanw return (0); 90 1.1.2.2 nathanw 91 1.1.2.2 nathanw if (bus_space_map(ma->ma_bust, ma->ma_offset, MEMC_REGSIZE, 0, &bh)) 92 1.1.2.2 nathanw return (0); 93 1.1.2.2 nathanw 94 1.1.2.2 nathanw rv = bus_space_peek_1(ma->ma_bust, bh, MEMC_REG_CHIP_ID, &chipid); 95 1.1.2.2 nathanw bus_space_unmap(ma->ma_bust, bh, MEMC_REGSIZE); 96 1.1.2.2 nathanw 97 1.1.2.2 nathanw if (rv) 98 1.1.2.2 nathanw return (0); 99 1.1.2.2 nathanw 100 1.1.2.2 nathanw /* Verify the Chip Id register is sane */ 101 1.1.2.2 nathanw if (chipid != MEMC_CHIP_ID_MEMC040 && chipid != MEMC_CHIP_ID_MEMECC) 102 1.1.2.2 nathanw return (0); 103 1.1.2.2 nathanw 104 1.1.2.2 nathanw return (1); 105 1.1.2.2 nathanw } 106 1.1.2.2 nathanw 107 1.1.2.2 nathanw /* ARGSUSED */ 108 1.1.2.2 nathanw void 109 1.1.2.2 nathanw memc_attach(parent, self, aux) 110 1.1.2.2 nathanw struct device *parent; 111 1.1.2.2 nathanw struct device *self; 112 1.1.2.2 nathanw void *aux; 113 1.1.2.2 nathanw { 114 1.1.2.2 nathanw struct mainbus_attach_args *ma = aux; 115 1.1.2.2 nathanw struct memc_softc *sc = (struct memc_softc *) self; 116 1.1.2.2 nathanw 117 1.1.2.2 nathanw sc->sc_bust = ma->ma_bust; 118 1.1.2.2 nathanw 119 1.1.2.2 nathanw /* Map the memory controller's registers */ 120 1.1.2.2 nathanw bus_space_map(sc->sc_bust, ma->ma_offset, MEMC_REGSIZE, 0, 121 1.1.2.2 nathanw &sc->sc_bush); 122 1.1.2.2 nathanw 123 1.1.2.2 nathanw /* Finish initialisation in common code */ 124 1.1.2.2 nathanw memc_init(sc); 125 1.1.2.2 nathanw } 126
Indexes created Wed Oct 01 13:09:50 GMT 2025