tx39clock.c revision 1.4.2.2
1 1.4.2.2 wrstuden /* $NetBSD: tx39clock.c,v 1.4.2.2 1999/12/27 18:32:11 wrstuden Exp $ */ 2 1.4.2.2 wrstuden 3 1.4.2.2 wrstuden /* 4 1.4.2.2 wrstuden * Copyright (c) 1999, by UCHIYAMA Yasushi 5 1.4.2.2 wrstuden * All rights reserved. 6 1.4.2.2 wrstuden * 7 1.4.2.2 wrstuden * Redistribution and use in source and binary forms, with or without 8 1.4.2.2 wrstuden * modification, are permitted provided that the following conditions 9 1.4.2.2 wrstuden * are met: 10 1.4.2.2 wrstuden * 1. Redistributions of source code must retain the above copyright 11 1.4.2.2 wrstuden * notice, this list of conditions and the following disclaimer. 12 1.4.2.2 wrstuden * 2. The name of the developer may NOT be used to endorse or promote products 13 1.4.2.2 wrstuden * derived from this software without specific prior written permission. 14 1.4.2.2 wrstuden * 15 1.4.2.2 wrstuden * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 1.4.2.2 wrstuden * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 1.4.2.2 wrstuden * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 1.4.2.2 wrstuden * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 1.4.2.2 wrstuden * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 1.4.2.2 wrstuden * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 1.4.2.2 wrstuden * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 1.4.2.2 wrstuden * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 1.4.2.2 wrstuden * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 1.4.2.2 wrstuden * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 1.4.2.2 wrstuden * SUCH DAMAGE. 26 1.4.2.2 wrstuden * 27 1.4.2.2 wrstuden */ 28 1.4.2.2 wrstuden #include "opt_tx39_debug.h" 29 1.4.2.2 wrstuden 30 1.4.2.2 wrstuden #include <sys/param.h> 31 1.4.2.2 wrstuden #include <sys/systm.h> 32 1.4.2.2 wrstuden #include <sys/device.h> 33 1.4.2.2 wrstuden 34 1.4.2.2 wrstuden #include <machine/bus.h> 35 1.4.2.2 wrstuden #include <machine/clock_machdep.h> 36 1.4.2.2 wrstuden #include <machine/cpu.h> 37 1.4.2.2 wrstuden 38 1.4.2.2 wrstuden #include <hpcmips/tx/tx39var.h> 39 1.4.2.2 wrstuden #include <hpcmips/tx/tx39icureg.h> /* XXX */ 40 1.4.2.2 wrstuden #include <hpcmips/tx/tx39clockreg.h> 41 1.4.2.2 wrstuden #include <hpcmips/tx/tx39timerreg.h> 42 1.4.2.2 wrstuden #include <dev/dec/clockvar.h> 43 1.4.2.2 wrstuden 44 1.4.2.2 wrstuden #define ISSETPRINT(r, m) __is_set_print(r, TX39_CLOCK_EN##m##CLK, #m) 45 1.4.2.2 wrstuden 46 1.4.2.2 wrstuden void clock_init __P((struct device*)); 47 1.4.2.2 wrstuden void clock_get __P((struct device*, time_t, struct clocktime*)); 48 1.4.2.2 wrstuden void clock_set __P((struct device*, struct clocktime*)); 49 1.4.2.2 wrstuden 50 1.4.2.2 wrstuden static const struct clockfns clockfns = { 51 1.4.2.2 wrstuden clock_init, clock_get, clock_set, 52 1.4.2.2 wrstuden }; 53 1.4.2.2 wrstuden 54 1.4.2.2 wrstuden int tx39clock_match __P((struct device*, struct cfdata*, void*)); 55 1.4.2.2 wrstuden void tx39clock_attach __P((struct device*, struct device*, void*)); 56 1.4.2.2 wrstuden void tx39clock_dump __P((tx_chipset_tag_t)); 57 1.4.2.2 wrstuden 58 1.4.2.2 wrstuden void tx39timer_freeze __P((tx_chipset_tag_t)); 59 1.4.2.2 wrstuden void tx39timer_rtcreset __P((tx_chipset_tag_t)); 60 1.4.2.2 wrstuden 61 1.4.2.2 wrstuden struct tx39clock_softc { 62 1.4.2.2 wrstuden struct device sc_dev; 63 1.4.2.2 wrstuden tx_chipset_tag_t sc_tc; 64 1.4.2.2 wrstuden }; 65 1.4.2.2 wrstuden 66 1.4.2.2 wrstuden struct cfattach tx39clock_ca = { 67 1.4.2.2 wrstuden sizeof(struct tx39clock_softc), tx39clock_match, tx39clock_attach 68 1.4.2.2 wrstuden }; 69 1.4.2.2 wrstuden 70 1.4.2.2 wrstuden int 71 1.4.2.2 wrstuden tx39clock_match(parent, cf, aux) 72 1.4.2.2 wrstuden struct device *parent; 73 1.4.2.2 wrstuden struct cfdata *cf; 74 1.4.2.2 wrstuden void *aux; 75 1.4.2.2 wrstuden { 76 1.4.2.2 wrstuden return 2; /* 1st attach group of txsim */ 77 1.4.2.2 wrstuden } 78 1.4.2.2 wrstuden 79 1.4.2.2 wrstuden void 80 1.4.2.2 wrstuden tx39clock_attach(parent, self, aux) 81 1.4.2.2 wrstuden struct device *parent; 82 1.4.2.2 wrstuden struct device *self; 83 1.4.2.2 wrstuden void *aux; 84 1.4.2.2 wrstuden { 85 1.4.2.2 wrstuden struct txsim_attach_args *ta = aux; 86 1.4.2.2 wrstuden struct tx39clock_softc *sc = (void*)self; 87 1.4.2.2 wrstuden tx_chipset_tag_t tc; 88 1.4.2.2 wrstuden txreg_t reg; 89 1.4.2.2 wrstuden 90 1.4.2.2 wrstuden tc = sc->sc_tc = ta->ta_tc; 91 1.4.2.2 wrstuden 92 1.4.2.2 wrstuden /* 93 1.4.2.2 wrstuden * Enable periodic timer 94 1.4.2.2 wrstuden * but interrupt don't arise yet. see clock_init(). 95 1.4.2.2 wrstuden */ 96 1.4.2.2 wrstuden reg = tx_conf_read(tc, TX39_TIMERCONTROL_REG); 97 1.4.2.2 wrstuden reg |= TX39_TIMERCONTROL_ENPERTIMER; 98 1.4.2.2 wrstuden tx_conf_write(tc, TX39_TIMERCONTROL_REG, reg); 99 1.4.2.2 wrstuden 100 1.4.2.2 wrstuden /* Set counter */ 101 1.4.2.2 wrstuden #if 0 102 1.4.2.2 wrstuden { 103 1.4.2.2 wrstuden int cnt = 0xffff; /* XXX the most slower. */ 104 1.4.2.2 wrstuden reg = tx_conf_read(tc, TX39_TIMERPERIODIC_REG); 105 1.4.2.2 wrstuden reg = TX39_TIMERPERIODIC_PERVAL_SET(reg, cnt); 106 1.4.2.2 wrstuden tx_conf_write(tc, TX39_TIMERPERIODIC_REG, reg); 107 1.4.2.2 wrstuden } 108 1.4.2.2 wrstuden #endif 109 1.4.2.2 wrstuden clockattach(self, &clockfns); 110 1.4.2.2 wrstuden 111 1.4.2.2 wrstuden #ifdef TX39CLKDEBUG 112 1.4.2.2 wrstuden tx39clock_dump(tc); 113 1.4.2.2 wrstuden #endif /* TX39CLKDEBUG */ 114 1.4.2.2 wrstuden } 115 1.4.2.2 wrstuden 116 1.4.2.2 wrstuden /* 117 1.4.2.2 wrstuden * RTC and ALARM 118 1.4.2.2 wrstuden * RTCINT ... INTR5 bit 31 (roll over) 119 1.4.2.2 wrstuden * ALARMINT ... INTR5 bit 30 120 1.4.2.2 wrstuden * PERINT ... INTR5 bit 29 121 1.4.2.2 wrstuden */ 122 1.4.2.2 wrstuden void 123 1.4.2.2 wrstuden tx39timer_freeze(tc) 124 1.4.2.2 wrstuden tx_chipset_tag_t tc; 125 1.4.2.2 wrstuden { 126 1.4.2.2 wrstuden txreg_t reg; 127 1.4.2.2 wrstuden 128 1.4.2.2 wrstuden reg = tx_conf_read(tc, TX39_TIMERCONTROL_REG); 129 1.4.2.2 wrstuden /* Freeze RTC */ 130 1.4.2.2 wrstuden reg |= TX39_TIMERCONTROL_FREEZEPRE; /* Upper 8bit */ 131 1.4.2.2 wrstuden reg |= TX39_TIMERCONTROL_FREEZERTC; /* Lower 32bit */ 132 1.4.2.2 wrstuden /* Freeze periodic timer */ 133 1.4.2.2 wrstuden reg |= TX39_TIMERCONTROL_FREEZETIMER; 134 1.4.2.2 wrstuden reg &= ~TX39_TIMERCONTROL_ENPERTIMER; 135 1.4.2.2 wrstuden tx_conf_write(tc, TX39_TIMERCONTROL_REG, reg); 136 1.4.2.2 wrstuden } 137 1.4.2.2 wrstuden 138 1.4.2.2 wrstuden void 139 1.4.2.2 wrstuden tx39timer_rtcreset(tc) 140 1.4.2.2 wrstuden tx_chipset_tag_t tc; 141 1.4.2.2 wrstuden { 142 1.4.2.2 wrstuden txreg_t reg; 143 1.4.2.2 wrstuden 144 1.4.2.2 wrstuden reg = tx_conf_read(tc, TX39_TIMERCONTROL_REG); 145 1.4.2.2 wrstuden /* Reset counter and stop */ 146 1.4.2.2 wrstuden reg |= TX39_TIMERCONTROL_RTCCLR; 147 1.4.2.2 wrstuden tx_conf_write(tc, TX39_TIMERCONTROL_REG, reg); 148 1.4.2.2 wrstuden /* Count again */ 149 1.4.2.2 wrstuden reg &= ~TX39_TIMERCONTROL_RTCCLR; 150 1.4.2.2 wrstuden tx_conf_write(tc, TX39_TIMERCONTROL_REG, reg); 151 1.4.2.2 wrstuden } 152 1.4.2.2 wrstuden 153 1.4.2.2 wrstuden void 154 1.4.2.2 wrstuden clock_init(dev) 155 1.4.2.2 wrstuden struct device *dev; 156 1.4.2.2 wrstuden { 157 1.4.2.2 wrstuden tx_chipset_tag_t tc; 158 1.4.2.2 wrstuden txreg_t reg; 159 1.4.2.2 wrstuden 160 1.4.2.2 wrstuden tc = tx_conf_get_tag(); 161 1.4.2.2 wrstuden /* Enable periodic timer */ 162 1.4.2.2 wrstuden reg = tx_conf_read(tc, TX39_INTRENABLE6_REG); 163 1.4.2.2 wrstuden reg |= TX39_INTRPRI13_TIMER_PERIODIC_BIT; 164 1.4.2.2 wrstuden tx_conf_write(tc, TX39_INTRENABLE6_REG, reg); 165 1.4.2.2 wrstuden 166 1.4.2.2 wrstuden } 167 1.4.2.2 wrstuden 168 1.4.2.2 wrstuden void 169 1.4.2.2 wrstuden clock_get(dev, base, ct) 170 1.4.2.2 wrstuden struct device *dev; 171 1.4.2.2 wrstuden time_t base; 172 1.4.2.2 wrstuden struct clocktime *ct; 173 1.4.2.2 wrstuden { 174 1.4.2.2 wrstuden tx_chipset_tag_t tc; 175 1.4.2.2 wrstuden txreg_t reghi, reglo, oreghi, oreglo; 176 1.4.2.2 wrstuden int i; 177 1.4.2.2 wrstuden 178 1.4.2.2 wrstuden tc = tx_conf_get_tag(); 179 1.4.2.2 wrstuden i = 10; 180 1.4.2.2 wrstuden do { 181 1.4.2.2 wrstuden reghi = tx_conf_read(tc, TX39_TIMERRTCHI_REG); 182 1.4.2.2 wrstuden reglo = tx_conf_read(tc, TX39_TIMERRTCLO_REG); 183 1.4.2.2 wrstuden oreghi = tx_conf_read(tc, TX39_TIMERRTCHI_REG); 184 1.4.2.2 wrstuden oreglo = tx_conf_read(tc, TX39_TIMERRTCLO_REG); 185 1.4.2.2 wrstuden } while ((reghi != oreghi || reglo != oreglo) && (--i > 0)); 186 1.4.2.2 wrstuden if (i < 0) { 187 1.4.2.2 wrstuden panic("RTC timer read error.\n"); 188 1.4.2.2 wrstuden } 189 1.4.2.2 wrstuden /* XXX not coded yet */ 190 1.4.2.2 wrstuden } 191 1.4.2.2 wrstuden 192 1.4.2.2 wrstuden void 193 1.4.2.2 wrstuden clock_set(dev, ct) 194 1.4.2.2 wrstuden struct device *dev; 195 1.4.2.2 wrstuden struct clocktime *ct; 196 1.4.2.2 wrstuden { 197 1.4.2.2 wrstuden /* XXX not coded yet */ 198 1.4.2.2 wrstuden } 199 1.4.2.2 wrstuden 200 1.4.2.2 wrstuden void 201 1.4.2.2 wrstuden tx39clock_dump(tc) 202 1.4.2.2 wrstuden tx_chipset_tag_t tc; 203 1.4.2.2 wrstuden { 204 1.4.2.2 wrstuden txreg_t reg; 205 1.4.2.2 wrstuden 206 1.4.2.2 wrstuden reg = tx_conf_read(tc, TX39_CLOCKCTRL_REG); 207 1.4.2.2 wrstuden printf(" "); 208 1.4.2.2 wrstuden ISSETPRINT(reg, CHIM); 209 1.4.2.2 wrstuden #ifdef TX391X 210 1.4.2.2 wrstuden ISSETPRINT(reg, VID); 211 1.4.2.2 wrstuden ISSETPRINT(reg, MBUS); 212 1.4.2.2 wrstuden #endif /* TX391X */ 213 1.4.2.2 wrstuden #ifdef TX392X 214 1.4.2.2 wrstuden ISSETPRINT(reg, IRDA); 215 1.4.2.2 wrstuden #endif /* TX392X */ 216 1.4.2.2 wrstuden ISSETPRINT(reg, SPI); 217 1.4.2.2 wrstuden ISSETPRINT(reg, TIMER); 218 1.4.2.2 wrstuden ISSETPRINT(reg, FASTTIMER); 219 1.4.2.2 wrstuden #ifdef TX392X 220 1.4.2.2 wrstuden ISSETPRINT(reg, C48MOUT); 221 1.4.2.2 wrstuden #endif /* TX392X */ 222 1.4.2.2 wrstuden ISSETPRINT(reg, SIBM); 223 1.4.2.2 wrstuden ISSETPRINT(reg, CSER); 224 1.4.2.2 wrstuden ISSETPRINT(reg, IR); 225 1.4.2.2 wrstuden ISSETPRINT(reg, UARTA); 226 1.4.2.2 wrstuden ISSETPRINT(reg, UARTB); 227 1.4.2.2 wrstuden printf("\n"); 228 1.4.2.2 wrstuden } 229 1.4.2.2 wrstuden 230 1.4.2.2 wrstuden 231 1.4.2.2 wrstuden 232 1.4.2.2 wrstuden 233
Indexes created Tue Nov 04 01:10:04 GMT 2025