1 /* $OpenBSD: stp_sbus.c,v 1.4 2003/06/25 17:36:51 miod Exp $ */ 2 /* $NetBSD: stp4020.c,v 1.23 2002/06/01 23:51:03 lukem Exp $ */ 3 4 /*- 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Paul Kranenburg. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * STP4020: SBus/PCMCIA bridge supporting two Type-3 PCMCIA cards. 42 */ 43 44 #include <sys/param.h> 45 #include <sys/systm.h> 46 #include <sys/errno.h> 47 #include <sys/malloc.h> 48 #include <sys/extent.h> 49 #include <sys/proc.h> 50 #include <sys/kernel.h> 51 #include <sys/kthread.h> 52 #include <sys/device.h> 53 54 #include <dev/pcmcia/pcmciareg.h> 55 #include <dev/pcmcia/pcmciavar.h> 56 #include <dev/pcmcia/pcmciachip.h> 57 58 #include <machine/bus.h> 59 #include <machine/intr.h> 60 61 #include <dev/sbus/sbusvar.h> 62 #include <dev/sbus/stp4020reg.h> 63 #include <dev/sbus/stp4020var.h> 64 65 struct stp4020_sbus_softc { 66 struct stp4020_softc stp; 67 struct sbusdev sc_sd; /* SBus device */ 68 }; 69 70 int stpmatch(struct device *, void *, void *); 71 void stpattach(struct device *, struct device *, void *); 72 73 struct cfattach stp_sbus_ca = { 74 sizeof(struct stp4020_sbus_softc), stpmatch, stpattach 75 }; 76 77 int 78 stpmatch(parent, match, aux) 79 struct device *parent; 80 void *match; 81 void *aux; 82 { 83 struct sbus_attach_args *sa = aux; 84 85 return (strcmp("SUNW,pcmcia", sa->sa_name) == 0); 86 } 87 88 /* 89 * Attach all the sub-devices we can find 90 */ 91 void 92 stpattach(parent, self, aux) 93 struct device *parent, *self; 94 void *aux; 95 { 96 struct sbus_attach_args *sa = aux; 97 struct stp4020_sbus_softc *ssc = (void *)self; 98 struct stp4020_softc *sc = (void *)self; 99 int node; 100 int i; 101 bus_space_handle_t bh; 102 103 node = sa->sa_node; 104 105 /* Transfer bus tags */ 106 sc->sc_bustag = sa->sa_bustag; 107 108 /* Set up per-socket static initialization */ 109 sc->sc_socks[0].sc = sc->sc_socks[1].sc = sc; 110 sc->sc_socks[0].tag = sc->sc_socks[1].tag = sa->sa_bustag; 111 112 if (sa->sa_nreg < 8) { 113 printf(": only %d register sets\n", sa->sa_nreg); 114 return; 115 } 116 117 if (sa->sa_nintr != 2) { 118 printf(": expect 2 interrupt Sbus levels; got %d\n", 119 sa->sa_nintr); 120 return; 121 } 122 123 #define STP4020_BANK_PROM 0 124 #define STP4020_BANK_CTRL 4 125 for (i = 0; i < 8; i++) { 126 127 /* 128 * STP4020 Register address map: 129 * bank 0: Forth PROM 130 * banks 1-3: socket 0, windows 0-2 131 * bank 4: control registers 132 * banks 5-7: socket 1, windows 0-2 133 */ 134 135 if (i == STP4020_BANK_PROM) 136 /* Skip the PROM */ 137 continue; 138 139 if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[i].sbr_slot, 140 sa->sa_reg[i].sbr_offset, sa->sa_reg[i].sbr_size, 141 BUS_SPACE_MAP_LINEAR, 0, &bh) != 0) { 142 printf(": attach: cannot map registers\n"); 143 return; 144 } 145 146 if (i == STP4020_BANK_CTRL) { 147 /* 148 * Copy tag and handle to both socket structures 149 * for easy access in control/status IO functions. 150 */ 151 sc->sc_socks[0].regs = sc->sc_socks[1].regs = bh; 152 } else if (i < STP4020_BANK_CTRL) { 153 /* banks 1-3 */ 154 sc->sc_socks[0].windows[i-1].winaddr = bh; 155 sc->sc_socks[0].wintag = sc->sc_bustag; 156 } else { 157 /* banks 5-7 */ 158 sc->sc_socks[1].windows[i-5].winaddr = bh; 159 sc->sc_socks[1].wintag = sc->sc_bustag; 160 } 161 } 162 163 sbus_establish(&ssc->sc_sd, &sc->sc_dev); 164 165 /* 166 * We get to use two SBus interrupt levels. 167 * The higher level we use for status change interrupts; 168 * the lower level for PC card I/O. 169 */ 170 bus_intr_establish(sa->sa_bustag, sa->sa_intr[1].sbi_pri, 171 IPL_NONE, 0, stp4020_statintr, sc, self->dv_xname); 172 173 bus_intr_establish(sa->sa_bustag, sa->sa_intr[0].sbi_pri, 174 IPL_NONE, 0, stp4020_iointr, sc, self->dv_xname); 175 176 stpattach_common(sc, sa->sa_frequency); 177 } 178