plum.c revision 1.4
1 /* $NetBSD: plum.c,v 1.4 2002/09/27 03:17:53 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 <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/device.h> 42 #include <sys/malloc.h> 43 44 #include <machine/bus.h> 45 #include <machine/intr.h> 46 47 #include <hpcmips/tx/tx39var.h> 48 #include <hpcmips/tx/txcsbusvar.h> 49 #include <hpcmips/dev/plumvar.h> 50 #include <hpcmips/dev/plumreg.h> 51 52 int plum_match(struct device *, struct cfdata *, void *); 53 void plum_attach(struct device *, struct device *, void *); 54 int plum_print(void *, const char *); 55 int plum_search(struct device *, struct cfdata *, void *); 56 57 struct plum_softc { 58 struct device sc_dev; 59 plum_chipset_tag_t sc_pc; 60 bus_space_tag_t sc_csregt; 61 bus_space_tag_t sc_csiot; 62 bus_space_tag_t sc_csmemt; 63 int sc_irq; 64 int sc_pri; 65 }; 66 67 struct cfattach plum_ca = { 68 sizeof(struct plum_softc), plum_match, plum_attach 69 }; 70 71 plumreg_t plum_idcheck(bus_space_tag_t); 72 73 int 74 plum_match(struct device *parent, struct cfdata *cf, void *aux) 75 { 76 struct cs_attach_args *ca = aux; 77 78 switch (plum_idcheck(ca->ca_csreg.cstag)) { 79 default: 80 return (0); 81 case PLUM2_1: 82 case PLUM2_2: 83 } 84 85 return (1); 86 } 87 88 void 89 plum_attach(struct device *parent, struct device *self, void *aux) 90 { 91 struct cs_attach_args *ca = aux; 92 struct plum_softc *sc = (void*)self; 93 plumreg_t reg; 94 95 sc->sc_csregt = ca->ca_csreg.cstag; 96 sc->sc_csiot = ca->ca_csio.cstag; 97 sc->sc_csmemt = ca->ca_csmem.cstag; 98 sc->sc_irq = ca->ca_irq1; 99 100 switch (plum_idcheck(sc->sc_csregt)) { 101 default: 102 printf(": unknown revision %#x\n", reg); 103 return; 104 case PLUM2_1: 105 printf(": Plum2 #1\n"); 106 break; 107 case PLUM2_2: 108 printf(": Plum2 #2\n"); 109 break; 110 } 111 if (!(sc->sc_pc = malloc(sizeof(struct plum_chipset_tag), 112 M_DEVBUF, M_NOWAIT))) { 113 panic("no memory"); 114 } 115 memset(sc->sc_pc, 0, sizeof(struct plum_chipset_tag)); 116 sc->sc_pc->pc_tc = ca->ca_tc; 117 118 /* Attach Plum devices */ 119 /* 120 * interrupt, power/clock module is used by other plum module. 121 * attach first. 122 */ 123 sc->sc_pri = 2; 124 config_search(plum_search, self, plum_print); 125 /* 126 * Other plum module. 127 */ 128 sc->sc_pri = 1; 129 config_search(plum_search, self, plum_print); 130 } 131 132 plumreg_t 133 plum_idcheck(bus_space_tag_t regt) 134 { 135 bus_space_handle_t regh; 136 plumreg_t reg; 137 138 if (bus_space_map(regt, PLUM_ID_REGBASE, 139 PLUM_ID_REGSIZE, 0, ®h)) { 140 printf("ID register map failed\n"); 141 return (0); 142 } 143 reg = plum_conf_read(regt, regh, PLUM_ID_REG); 144 bus_space_unmap(regt, regh, PLUM_ID_REGSIZE); 145 146 return (reg); 147 } 148 149 int 150 plum_print(void *aux, const char *pnp) 151 { 152 153 return (pnp ? QUIET : UNCONF); 154 } 155 156 int 157 plum_search(struct device *parent, struct cfdata *cf, void *aux) 158 { 159 struct plum_softc *sc = (void*)parent; 160 struct plum_attach_args pa; 161 162 pa.pa_pc = sc->sc_pc; 163 pa.pa_regt = sc->sc_csregt; 164 pa.pa_iot = sc->sc_csiot; 165 pa.pa_memt = sc->sc_csmemt; 166 pa.pa_irq = sc->sc_irq; 167 168 if (config_match(parent, cf, &pa) == sc->sc_pri) { 169 config_attach(parent, cf, &pa, plum_print); 170 } 171 172 return 0; 173 } 174 175 plumreg_t 176 plum_conf_read(bus_space_tag_t t, bus_space_handle_t h, int o) 177 { 178 plumreg_t reg; 179 180 reg = bus_space_read_4(t, h, o); 181 182 return (reg); 183 } 184 185 void 186 plum_conf_write(bus_space_tag_t t, bus_space_handle_t h, int o, plumreg_t v) 187 { 188 189 bus_space_write_4(t, h, o, v); 190 } 191 192 void 193 plum_conf_register_intr(plum_chipset_tag_t t, void *intrt) 194 { 195 196 if (t->pc_intrt) { 197 panic("duplicate intrt"); 198 } 199 200 t->pc_intrt = intrt; 201 } 202 203 void 204 plum_conf_register_power(plum_chipset_tag_t t, void *powert) 205 { 206 207 if (t->pc_powert) { 208 panic("duplicate powert"); 209 } 210 211 t->pc_powert = powert; 212 } 213
Indexes created Tue Oct 07 21:09:53 GMT 2025