tx39biu.c revision 1.13
1 /* $NetBSD: tx39biu.c,v 1.13 2008/04/28 20:23:21 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 1999-2002 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: tx39biu.c,v 1.13 2008/04/28 20:23:21 martin Exp $"); 34 35 #include "opt_tx39_watchdogtimer.h" 36 #include "opt_tx39biu_debug.h" 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/device.h> 41 42 #include <machine/bus.h> 43 #include <machine/debug.h> 44 45 #include <hpcmips/tx/tx39var.h> 46 #include <hpcmips/tx/tx39biureg.h> 47 #include <hpcmips/tx/txcsbusvar.h> 48 49 #ifdef TX39BIU_DEBUG 50 #define DPRINTF_ENABLE 51 #define DPRINTF_DEBUG tx39biu_debug 52 #endif 53 54 #define ISSETPRINT(r, s, m) dbg_bitmask_print((u_int32_t)(r), \ 55 TX39_MEMCONFIG ## s ## _ ##m, #m) 56 57 int tx39biu_match(struct device *, struct cfdata *, void *); 58 void tx39biu_attach(struct device *, struct device *, void *); 59 void tx39biu_callback(struct device *); 60 int tx39biu_print(void *, const char *); 61 int tx39biu_intr(void *); 62 63 static void *__sc; /* XXX */ 64 #ifdef TX39BIU_DEBUG 65 void tx39biu_dump(tx_chipset_tag_t); 66 #endif 67 68 struct tx39biu_softc { 69 struct device sc_dev; 70 tx_chipset_tag_t sc_tc; 71 }; 72 73 CFATTACH_DECL(tx39biu, sizeof(struct tx39biu_softc), 74 tx39biu_match, tx39biu_attach, NULL, NULL); 75 76 int 77 tx39biu_match(parent, cf, aux) 78 struct device *parent; 79 struct cfdata *cf; 80 void *aux; 81 { 82 return (ATTACH_NORMAL); 83 } 84 85 void 86 tx39biu_attach(parent, self, aux) 87 struct device *parent; 88 struct device *self; 89 void *aux; 90 { 91 struct txsim_attach_args *ta = aux; 92 struct tx39biu_softc *sc = (void*)self; 93 tx_chipset_tag_t tc; 94 #ifdef TX39_WATCHDOGTIMER 95 txreg_t reg; 96 #endif 97 98 sc->sc_tc = tc = ta->ta_tc; 99 printf("\n"); 100 #ifdef TX39BIU_DEBUG 101 tx39biu_dump(tc); 102 #endif 103 104 #ifdef TX39_WATCHDOGTIMER 105 /* 106 * CLRWRBUSERRINT Bus error connected CPU HwInt0 107 */ 108 reg = tx_conf_read(tc, TX39_MEMCONFIG4_REG); 109 reg |= TX39_MEMCONFIG4_ENWATCH; 110 reg = TX39_MEMCONFIG4_WATCHTIMEVAL_SET(reg, 0xf); 111 tx_conf_write(tc, TX39_MEMCONFIG4_REG, reg); 112 113 reg = tx_conf_read(tc, TX39_MEMCONFIG4_REG); 114 if (reg & TX39_MEMCONFIG4_ENWATCH) { 115 int i; 116 i = TX39_MEMCONFIG4_WATCHTIMEVAL(reg); 117 i = (1000 * (i + 1) * 64) / 36864; 118 printf("WatchDogTimerRate: %dus\n", i); 119 } 120 #endif 121 __sc = sc; 122 123 /* Clear watch dog timer interrupt */ 124 tx39biu_intr(sc); 125 126 /* 127 * Chip select virtual bridge 128 */ 129 config_defer(self, tx39biu_callback); 130 } 131 132 void 133 tx39biu_callback(self) 134 struct device *self; 135 { 136 struct tx39biu_softc *sc = (void*)self; 137 struct csbus_attach_args cba; 138 139 cba.cba_busname = "txcsbus"; 140 cba.cba_tc = sc->sc_tc; 141 config_found(self, &cba, tx39biu_print); 142 } 143 144 int 145 tx39biu_print(aux, pnp) 146 void *aux; 147 const char *pnp; 148 { 149 return (pnp ? QUIET : UNCONF); 150 } 151 152 int 153 tx39biu_intr(arg) 154 void *arg; 155 { 156 struct tx39biu_softc *sc = __sc; 157 tx_chipset_tag_t tc; 158 txreg_t reg; 159 160 if (!sc) { 161 return (0); 162 } 163 tc = sc->sc_tc; 164 /* Clear interrupt */ 165 reg = tx_conf_read(tc, TX39_MEMCONFIG4_REG); 166 reg |= TX39_MEMCONFIG4_CLRWRBUSERRINT; 167 tx_conf_write(tc, TX39_MEMCONFIG4_REG, reg); 168 reg = tx_conf_read(tc, TX39_MEMCONFIG4_REG); 169 reg &= ~TX39_MEMCONFIG4_CLRWRBUSERRINT; 170 tx_conf_write(tc, TX39_MEMCONFIG4_REG, reg); 171 172 return (0); 173 } 174 175 #ifdef TX39BIU_DEBUG 176 void 177 tx39biu_dump(tc) 178 tx_chipset_tag_t tc; 179 { 180 char *rowsel[] = {"18,17:9", "22,18,20,19,17:9", "20,22,21,19,17:9", 181 "22,23,21,19,17:9"}; 182 char *colsel[] = {"22,20,18,8:1", "19,18,8:2", "21,20,18,8:2", 183 "23,22,20,18,8:2", "24,22,20,18,8:2", 184 "18,p,X,8:0","22,p,X,21,8:0", "18,p,X,21,8:1", 185 "22,p,X,23,21,8:1", "24,23,21,8:2"}; 186 txreg_t reg; 187 int i; 188 /* 189 * Memory config 0 register 190 */ 191 reg = tx_conf_read(tc, TX39_MEMCONFIG0_REG); 192 printf(" config0:"); 193 ISSETPRINT(reg, 0, ENDCLKOUTTRI); 194 ISSETPRINT(reg, 0, DISDQMINIT); 195 ISSETPRINT(reg, 0, ENSDRAMPD); 196 ISSETPRINT(reg, 0, SHOWDINO); 197 ISSETPRINT(reg, 0, ENRMAP2); 198 ISSETPRINT(reg, 0, ENRMAP1); 199 ISSETPRINT(reg, 0, ENWRINPAGE); 200 ISSETPRINT(reg, 0, ENCS3USER); 201 ISSETPRINT(reg, 0, ENCS2USER); 202 ISSETPRINT(reg, 0, ENCS1USER); 203 ISSETPRINT(reg, 0, ENCS1DRAM); 204 ISSETPRINT(reg, 0, CS3SIZE); 205 ISSETPRINT(reg, 0, CS2SIZE); 206 ISSETPRINT(reg, 0, CS1SIZE); 207 ISSETPRINT(reg, 0, CS0SIZE); 208 printf("\n"); 209 for (i = 0; i < 2; i++) { 210 int r, c; 211 printf(" BANK%d: ", i); 212 switch (i ? TX39_MEMCONFIG0_BANK1CONF(reg) 213 : TX39_MEMCONFIG0_BANK0CONF(reg)) { 214 case TX39_MEMCONFIG0_BANKCONF_16BITSDRAM: 215 printf("16bit SDRAM"); 216 break; 217 case TX39_MEMCONFIG0_BANKCONF_8BITSDRAM: 218 printf("8bit SDRAM"); 219 break; 220 case TX39_MEMCONFIG0_BANKCONF_32BITSDHDRAM: 221 printf("32bit DRAM/HDRAM"); 222 break; 223 case TX39_MEMCONFIG0_BANKCONF_16BITSDHDRAM: 224 printf("16bit DRAM/HDRAM"); 225 break; 226 } 227 if (i == 1) { 228 r = TX39_MEMCONFIG0_ROWSEL1(reg); 229 c = TX39_MEMCONFIG0_COLSEL1(reg); 230 } else { 231 r = TX39_MEMCONFIG0_ROWSEL0(reg); 232 c = TX39_MEMCONFIG0_COLSEL0(reg); 233 } 234 printf(" ROW %s COL %s\n", rowsel[r], colsel[c]); 235 } 236 237 /* 238 * Memory config 3 register 239 */ 240 printf(" config3:"); 241 reg = tx_conf_read(tc, TX39_MEMCONFIG3_REG); 242 #ifdef TX391X 243 ISSETPRINT(reg, 3, ENMCS3PAGE); 244 ISSETPRINT(reg, 3, ENMCS2PAGE); 245 ISSETPRINT(reg, 3, ENMCS1PAGE); 246 ISSETPRINT(reg, 3, ENMCS0PAGE); 247 #endif /* TX391X */ 248 ISSETPRINT(reg, 3, ENCS3PAGE); 249 ISSETPRINT(reg, 3, ENCS2PAGE); 250 ISSETPRINT(reg, 3, ENCS1PAGE); 251 ISSETPRINT(reg, 3, ENCS0PAGE); 252 ISSETPRINT(reg, 3, CARD2WAITEN); 253 ISSETPRINT(reg, 3, CARD1WAITEN); 254 ISSETPRINT(reg, 3, CARD2IOEN); 255 ISSETPRINT(reg, 3, CARD1IOEN); 256 #ifdef TX391X 257 ISSETPRINT(reg, 3, PORT8SEL); 258 #endif /* TX391X */ 259 #ifdef TX392X 260 ISSETPRINT(reg, 3, CARD2_8SEL); 261 ISSETPRINT(reg, 3, CARD1_8SEL); 262 #endif /* TX392X */ 263 264 printf("\n"); 265 266 /* 267 * Memory config 4 register 268 */ 269 reg = tx_conf_read(tc, TX39_MEMCONFIG4_REG); 270 printf(" config4:"); 271 ISSETPRINT(reg, 4, ENBANK1HDRAM); 272 ISSETPRINT(reg, 4, ENBANK0HDRAM); 273 ISSETPRINT(reg, 4, ENARB); 274 ISSETPRINT(reg, 4, DISSNOOP); 275 ISSETPRINT(reg, 4, CLRWRBUSERRINT); 276 ISSETPRINT(reg, 4, ENBANK1OPT); 277 ISSETPRINT(reg, 4, ENBANK0OPT); 278 ISSETPRINT(reg, 4, ENWATCH); 279 ISSETPRINT(reg, 4, MEMPOWERDOWN); 280 ISSETPRINT(reg, 4, ENRFSH1); 281 ISSETPRINT(reg, 4, ENRFSH0); 282 if (reg & TX39_MEMCONFIG4_ENWATCH) { 283 i = TX39_MEMCONFIG4_WATCHTIMEVAL(reg); 284 i = (1000 * (i + 1) * 64) / 36864; 285 printf("WatchDogTimerRate: %dus", i); 286 } 287 printf("\n"); 288 } 289 #endif /* TX39BIU_DEBUG */ 290
Indexes created Tue Nov 04 22:10:08 GMT 2025