1/* $OpenBSD: stp_sbus.c,v 1.13 2022/10/16 01:22:39 jsg 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 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33/* 34 * STP4020: SBus/PCMCIA bridge supporting one Type-3 PCMCIA card, or up to 35 * two Type-1 and Type-2 PCMCIA cards.. 36 */ 37 38#include <sys/param.h> 39#include <sys/systm.h> 40#include <sys/errno.h> 41#include <sys/malloc.h> 42#include <sys/extent.h> 43#include <sys/proc.h> 44#include <sys/kernel.h> 45#include <sys/device.h> 46 47#include <dev/pcmcia/pcmciareg.h> 48#include <dev/pcmcia/pcmciavar.h> 49#include <dev/pcmcia/pcmciachip.h> 50 51#include <machine/bus.h> 52#include <machine/intr.h> 53 54#include <dev/sbus/sbusvar.h> 55#include <dev/sbus/stp4020reg.h> 56#include <dev/sbus/stp4020var.h> 57 58struct stp4020_sbus_softc { 59 struct stp4020_softc stp; 60 struct sparc_bus_space_tag *sc_bustag_le; 61}; 62 63int stpmatch(struct device *, void *, void *); 64void stpattach(struct device *, struct device *, void *); 65 66const struct cfattach stp_sbus_ca = { 67 sizeof(struct stp4020_sbus_softc), stpmatch, stpattach 68}; 69 70int 71stpmatch(struct device *parent, void *match, void *aux) 72{ 73 struct sbus_attach_args *sa = aux; 74 75 return (strcmp("SUNW,pcmcia", sa->sa_name) == 0); 76} 77 78/* 79 * Attach all the sub-devices we can find 80 */ 81void 82stpattach(struct device *parent, struct device *self, void *aux) 83{ 84 struct sbus_attach_args *sa = aux; 85 struct stp4020_sbus_softc *ssc = (void *)self; 86 struct stp4020_softc *sc = (void *)self; 87 int node; 88 int i; 89 bus_space_tag_t bt; 90 bus_space_handle_t bh; 91 92 node = sa->sa_node; 93 94 /* Allocate little-endian bus tag */ 95 ssc->sc_bustag_le = malloc(sizeof(*sa->sa_bustag), M_DEVBUF, M_NOWAIT); 96 if (ssc->sc_bustag_le == NULL) 97 panic("could not allocate stp bus tag"); 98 *ssc->sc_bustag_le = *sa->sa_bustag; 99 ssc->sc_bustag_le->asi = ASI_PRIMARY_LITTLE; 100 101 /* Transfer bus tags */ 102 sc->sc_bustag = sa->sa_bustag; 103 104 /* Set up per-socket static initialization */ 105 sc->sc_socks[0].sc = sc->sc_socks[1].sc = sc; 106 sc->sc_socks[0].tag = sc->sc_socks[1].tag = sa->sa_bustag; 107 108 if (sa->sa_nreg < 8) { 109 printf(": only %d register sets\n", sa->sa_nreg); 110 return; 111 } 112 113 if (sa->sa_nintr != 2) { 114 printf(": expect 2 interrupt SBus levels; got %d\n", 115 sa->sa_nintr); 116 return; 117 } 118 119#define STP4020_BANK_PROM 0 120#define STP4020_BANK_CTRL 4 121 for (i = 0; i < 8; i++) { 122 123 /* 124 * STP4020 Register address map: 125 * bank 0: Forth PROM 126 * banks 1-3: socket 0, windows 0-2 127 * bank 4: control registers 128 * banks 5-7: socket 1, windows 0-2 129 */ 130 131 if (i == STP4020_BANK_PROM) 132 /* Skip the PROM */ 133 continue; 134 135 if (i == STP4020_BANK_CTRL) 136 bt = sc->sc_bustag; 137 else 138 bt = ssc->sc_bustag_le; 139 140 if (sbus_bus_map(bt, sa->sa_reg[i].sbr_slot, 141 sa->sa_reg[i].sbr_offset, sa->sa_reg[i].sbr_size, 0, 0, 142 &bh) != 0) { 143 printf(": attach: cannot map registers\n"); 144 return; 145 } 146 147 if (i == STP4020_BANK_CTRL) { 148 /* 149 * Copy tag and handle to both socket structures 150 * for easy access in control/status IO functions. 151 */ 152 sc->sc_socks[0].regs = sc->sc_socks[1].regs = bh; 153 } else if (i < STP4020_BANK_CTRL) { 154 /* banks 1-3 */ 155 sc->sc_socks[0].windows[i-1].winaddr = bh; 156 sc->sc_socks[0].wintag = bt; 157 } else { 158 /* banks 5-7 */ 159 sc->sc_socks[1].windows[i-5].winaddr = bh; 160 sc->sc_socks[1].wintag = bt; 161 } 162 } 163 164 /* 165 * We get to use two SBus interrupt levels. 166 * The higher level we use for status change interrupts; 167 * the lower level for PC card I/O. 168 */ 169 bus_intr_establish(sa->sa_bustag, sa->sa_intr[1].sbi_pri, 170 IPL_NONE, 0, stp4020_statintr, sc, self->dv_xname); 171 172 bus_intr_establish(sa->sa_bustag, sa->sa_intr[0].sbi_pri, 173 IPL_NONE, 0, stp4020_iointr, sc, self->dv_xname); 174 175 stpattach_common(sc, sa->sa_frequency); 176} 177