plum.c revision 1.6.6.1
1 /* $NetBSD: plum.c,v 1.6.6.1 2004/08/03 10:35:07 skrll 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/cdefs.h> 40 __KERNEL_RCSID(0, "$NetBSD: plum.c,v 1.6.6.1 2004/08/03 10:35:07 skrll Exp $"); 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/device.h> 45 #include <sys/malloc.h> 46 47 #include <machine/bus.h> 48 #include <machine/intr.h> 49 50 #include <hpcmips/tx/tx39var.h> 51 #include <hpcmips/tx/txcsbusvar.h> 52 #include <hpcmips/dev/plumvar.h> 53 #include <hpcmips/dev/plumreg.h> 54 55 int plum_match(struct device *, struct cfdata *, void *); 56 void plum_attach(struct device *, struct device *, void *); 57 int plum_print(void *, const char *); 58 int plum_search(struct device *, struct cfdata *, void *); 59 60 struct plum_softc { 61 struct device sc_dev; 62 plum_chipset_tag_t sc_pc; 63 bus_space_tag_t sc_csregt; 64 bus_space_tag_t sc_csiot; 65 bus_space_tag_t sc_csmemt; 66 int sc_irq; 67 int sc_pri; 68 }; 69 70 CFATTACH_DECL(plum, sizeof(struct plum_softc), 71 plum_match, plum_attach, NULL, NULL); 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 /* nothing */; 86 } 87 88 return (1); 89 } 90 91 void 92 plum_attach(struct device *parent, struct device *self, void *aux) 93 { 94 struct cs_attach_args *ca = aux; 95 struct plum_softc *sc = (void*)self; 96 plumreg_t reg; 97 98 sc->sc_csregt = ca->ca_csreg.cstag; 99 sc->sc_csiot = ca->ca_csio.cstag; 100 sc->sc_csmemt = ca->ca_csmem.cstag; 101 sc->sc_irq = ca->ca_irq1; 102 103 switch (reg = plum_idcheck(sc->sc_csregt)) { 104 default: 105 printf(": unknown revision %#x\n", reg); 106 return; 107 case PLUM2_1: 108 printf(": Plum2 #1\n"); 109 break; 110 case PLUM2_2: 111 printf(": Plum2 #2\n"); 112 break; 113 } 114 if (!(sc->sc_pc = malloc(sizeof(struct plum_chipset_tag), 115 M_DEVBUF, M_NOWAIT))) { 116 panic("no memory"); 117 } 118 memset(sc->sc_pc, 0, sizeof(struct plum_chipset_tag)); 119 sc->sc_pc->pc_tc = ca->ca_tc; 120 121 /* Attach Plum devices */ 122 /* 123 * interrupt, power/clock module is used by other plum module. 124 * attach first. 125 */ 126 sc->sc_pri = 2; 127 config_search(plum_search, self, plum_print); 128 /* 129 * Other plum module. 130 */ 131 sc->sc_pri = 1; 132 config_search(plum_search, self, plum_print); 133 } 134 135 plumreg_t 136 plum_idcheck(bus_space_tag_t regt) 137 { 138 bus_space_handle_t regh; 139 plumreg_t reg; 140 141 if (bus_space_map(regt, PLUM_ID_REGBASE, 142 PLUM_ID_REGSIZE, 0, ®h)) { 143 printf("ID register map failed\n"); 144 return (0); 145 } 146 reg = plum_conf_read(regt, regh, PLUM_ID_REG); 147 bus_space_unmap(regt, regh, PLUM_ID_REGSIZE); 148 149 return (reg); 150 } 151 152 int 153 plum_print(void *aux, const char *pnp) 154 { 155 156 return (pnp ? QUIET : UNCONF); 157 } 158 159 int 160 plum_search(struct device *parent, struct cfdata *cf, void *aux) 161 { 162 struct plum_softc *sc = (void*)parent; 163 struct plum_attach_args pa; 164 165 pa.pa_pc = sc->sc_pc; 166 pa.pa_regt = sc->sc_csregt; 167 pa.pa_iot = sc->sc_csiot; 168 pa.pa_memt = sc->sc_csmemt; 169 pa.pa_irq = sc->sc_irq; 170 171 if (config_match(parent, cf, &pa) == sc->sc_pri) { 172 config_attach(parent, cf, &pa, plum_print); 173 } 174 175 return 0; 176 } 177 178 plumreg_t 179 plum_conf_read(bus_space_tag_t t, bus_space_handle_t h, int o) 180 { 181 plumreg_t reg; 182 183 reg = bus_space_read_4(t, h, o); 184 185 return (reg); 186 } 187 188 void 189 plum_conf_write(bus_space_tag_t t, bus_space_handle_t h, int o, plumreg_t v) 190 { 191 192 bus_space_write_4(t, h, o, v); 193 } 194 195 void 196 plum_conf_register_intr(plum_chipset_tag_t t, void *intrt) 197 { 198 199 if (t->pc_intrt) { 200 panic("duplicate intrt"); 201 } 202 203 t->pc_intrt = intrt; 204 } 205 206 void 207 plum_conf_register_power(plum_chipset_tag_t t, void *powert) 208 { 209 210 if (t->pc_powert) { 211 panic("duplicate powert"); 212 } 213 214 t->pc_powert = powert; 215 } 216
Indexes created Tue Oct 07 21:09:53 GMT 2025