plum.c revision 1.1.12.1
1 /* $NetBSD: plum.c,v 1.1.12.1 2002/01/10 19:43:50 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by UCHIYAMA Yasushi. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include "opt_tx39_debug.h" 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/device.h> 44 #include <sys/malloc.h> 45 46 #include <machine/bus.h> 47 #include <machine/intr.h> 48 49 #include <hpcmips/tx/tx39var.h> 50 #include <hpcmips/tx/txcsbusvar.h> 51 #include <hpcmips/dev/plumvar.h> 52 #include <hpcmips/dev/plumreg.h> 53 54 int plum_match(struct device *, struct cfdata *, void *); 55 void plum_attach(struct device *, struct device *, void *); 56 int plum_print(void *, const char *); 57 int plum_search(struct device *, struct cfdata *, void *); 58 59 struct plum_softc { 60 struct device sc_dev; 61 plum_chipset_tag_t sc_pc; 62 bus_space_tag_t sc_csregt; 63 bus_space_tag_t sc_csiot; 64 bus_space_tag_t sc_csmemt; 65 int sc_irq; 66 int sc_pri; 67 }; 68 69 struct cfattach plum_ca = { 70 sizeof(struct plum_softc), plum_match, plum_attach 71 }; 72 73 plumreg_t plum_idcheck(bus_space_tag_t); 74 75 int 76 plum_match(struct device *parent, struct cfdata *cf, void *aux) 77 { 78 struct cs_attach_args *ca = aux; 79 80 switch (plum_idcheck(ca->ca_csreg.cstag)) { 81 default: 82 return (0); 83 case PLUM2_1: 84 case PLUM2_2: 85 } 86 87 return (1); 88 } 89 90 void 91 plum_attach(struct device *parent, struct device *self, void *aux) 92 { 93 struct cs_attach_args *ca = aux; 94 struct plum_softc *sc = (void*)self; 95 plumreg_t reg; 96 97 sc->sc_csregt = ca->ca_csreg.cstag; 98 sc->sc_csiot = ca->ca_csio.cstag; 99 sc->sc_csmemt = ca->ca_csmem.cstag; 100 sc->sc_irq = ca->ca_irq1; 101 102 switch (plum_idcheck(sc->sc_csregt)) { 103 default: 104 printf(": unknown revision %#x\n", reg); 105 return; 106 case PLUM2_1: 107 printf(": Plum2 #1\n"); 108 break; 109 case PLUM2_2: 110 printf(": Plum2 #2\n"); 111 break; 112 } 113 if (!(sc->sc_pc = malloc(sizeof(struct plum_chipset_tag), 114 M_DEVBUF, M_NOWAIT))) { 115 panic("no memory"); 116 } 117 memset(sc->sc_pc, 0, sizeof(struct plum_chipset_tag)); 118 sc->sc_pc->pc_tc = ca->ca_tc; 119 120 /* Attach Plum devices */ 121 /* 122 * interrupt, power/clock module is used by other plum module. 123 * attach first. 124 */ 125 sc->sc_pri = 2; 126 config_search(plum_search, self, plum_print); 127 /* 128 * Other plum module. 129 */ 130 sc->sc_pri = 1; 131 config_search(plum_search, self, plum_print); 132 } 133 134 plumreg_t 135 plum_idcheck(bus_space_tag_t regt) 136 { 137 bus_space_handle_t regh; 138 plumreg_t reg; 139 140 if (bus_space_map(regt, PLUM_ID_REGBASE, 141 PLUM_ID_REGSIZE, 0, ®h)) { 142 printf("ID register map failed\n"); 143 return (0); 144 } 145 reg = plum_conf_read(regt, regh, PLUM_ID_REG); 146 bus_space_unmap(regt, regh, PLUM_ID_REGSIZE); 147 148 return (reg); 149 } 150 151 int 152 plum_print(void *aux, const char *pnp) 153 { 154 155 return (pnp ? QUIET : UNCONF); 156 } 157 158 int 159 plum_search(struct device *parent, struct cfdata *cf, void *aux) 160 { 161 struct plum_softc *sc = (void*)parent; 162 struct plum_attach_args pa; 163 164 pa.pa_pc = sc->sc_pc; 165 pa.pa_regt = sc->sc_csregt; 166 pa.pa_iot = sc->sc_csiot; 167 pa.pa_memt = sc->sc_csmemt; 168 pa.pa_irq = sc->sc_irq; 169 170 if ((*cf->cf_attach->ca_match)(parent, cf, &pa) == sc->sc_pri) { 171 config_attach(parent, cf, &pa, plum_print); 172 } 173 174 return 0; 175 } 176 177 plumreg_t 178 plum_conf_read(bus_space_tag_t t, bus_space_handle_t h, int o) 179 { 180 plumreg_t reg; 181 182 reg = bus_space_read_4(t, h, o); 183 184 return (reg); 185 } 186 187 void 188 plum_conf_write(bus_space_tag_t t, bus_space_handle_t h, int o, plumreg_t v) 189 { 190 191 bus_space_write_4(t, h, o, v); 192 } 193 194 void 195 plum_conf_register_intr(plum_chipset_tag_t t, void *intrt) 196 { 197 198 if (t->pc_intrt) { 199 panic("duplicate intrt"); 200 } 201 202 t->pc_intrt = intrt; 203 } 204 205 void 206 plum_conf_register_power(plum_chipset_tag_t t, void *powert) 207 { 208 209 if (t->pc_powert) { 210 panic("duplicate powert"); 211 } 212 213 t->pc_powert = powert; 214 } 215
Indexes created Tue Oct 07 21:09:53 GMT 2025