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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 | /* * include/asm-ppc/todc.h * * Definitions for the M48Txx and mc146818 series of Time of day/Real Time * Clock chips. * * Author: Mark A. Greer * mgreer@mvista.com * * Copyright 2001 MontaVista Software Inc. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. */ /* * Support for the M48T37/M48T59/.../mc146818 Real Time Clock chips. * Purpose is to make one generic file that handles all of these chips instead * of every platform implementing the same code over & over again. */ #ifndef __PPC_KERNEL_TODC_H #define __PPC_KERNEL_TODC_H typedef struct { uint rtc_type; /* your particular chip */ /* * Following are the addresses of the AS0, AS1, and DATA registers * of these chips. Note that these are board-specific. */ unsigned char *nvram_as0; unsigned char *nvram_as1; unsigned char *nvram_data; /* * Define bits to stop external set of regs from changing so * the chip can be read/written reliably. */ unsigned char enable_read; unsigned char enable_write; /* * Following is the number of AS0 address bits. This is normally * 8 but some bad hardware routes address lines incorrectly. */ int as0_bits; /* Following are the register offsets for the particular chip */ int year; int month; int day_of_month; int day_of_week; int hours; int minutes; int seconds; int control_b; int control_a; int watchdog; int interrupts; int alarm_date; int alarm_hour; int alarm_minutes; int alarm_seconds; int century; int flags; } todc_info_t; /* * Define the types of TODC/RTC variants that are supported in * arch/ppc/kernel/todc_time.c * Make a new one of these for any chip somehow differs from what's already * defined. That way, if you ever need to put in code to touch those * bits/registers in todc_time.c, you can put it inside an * 'if (todc_info->rtc_type == TODC_TYPE_XXX)' so you won't break * anyone else. */ #define TODC_TYPE_MK48T35 1 #define TODC_TYPE_MK48T37 2 #define TODC_TYPE_MK48T59 3 #define TODC_TYPE_DS1693 4 /* Dallas DS1693 RTC */ #define TODC_TYPE_DS1743 5 /* Dallas DS1743 RTC */ #define TODC_TYPE_DS1746 6 /* Dallas DS1746 RTC */ #define TODC_TYPE_DS1747 7 /* Dallas DS1747 RTC */ #define TODC_TYPE_DS1501 8 /* Dallas DS1501 RTC */ #define TODC_TYPE_DS1643 9 /* Dallas DS1643 RTC */ #define TODC_TYPE_PC97307 10 /* PC97307 internal RTC */ #define TODC_TYPE_DS1557 11 /* Dallas DS1557 RTC */ #define TODC_TYPE_MC146818 100 /* Leave room for more m48txx's */ /* * Bit to clear/set to enable reads/writes to the chip */ #define TODC_MK48TXX_CNTL_A_R 0x40 #define TODC_MK48TXX_CNTL_A_W 0x80 #define TODC_MK48TXX_DAY_CB 0x80 #define TODC_DS1501_CNTL_B_TE 0x80 /* * Define the values for the various RTC's that should to into the todc_info * table. */ #define TODC_TYPE_MK48T35_YEAR 0x7fff #define TODC_TYPE_MK48T35_MONTH 0x7ffe #define TODC_TYPE_MK48T35_DOM 0x7ffd /* Day of Month */ #define TODC_TYPE_MK48T35_DOW 0x7ffc /* Day of Week */ #define TODC_TYPE_MK48T35_HOURS 0x7ffb #define TODC_TYPE_MK48T35_MINUTES 0x7ffa #define TODC_TYPE_MK48T35_SECONDS 0x7ff9 #define TODC_TYPE_MK48T35_CNTL_B 0x7ff9 #define TODC_TYPE_MK48T35_CNTL_A 0x7ff8 #define TODC_TYPE_MK48T35_WATCHDOG 0x0000 #define TODC_TYPE_MK48T35_INTERRUPTS 0x0000 #define TODC_TYPE_MK48T35_ALARM_DATE 0x0000 #define TODC_TYPE_MK48T35_ALARM_HOUR 0x0000 #define TODC_TYPE_MK48T35_ALARM_MINUTES 0x0000 #define TODC_TYPE_MK48T35_ALARM_SECONDS 0x0000 #define TODC_TYPE_MK48T35_CENTURY 0x0000 #define TODC_TYPE_MK48T35_FLAGS 0x0000 #define TODC_TYPE_MK48T37_YEAR 0x7fff #define TODC_TYPE_MK48T37_MONTH 0x7ffe #define TODC_TYPE_MK48T37_DOM 0x7ffd /* Day of Month */ #define TODC_TYPE_MK48T37_DOW 0x7ffc /* Day of Week */ #define TODC_TYPE_MK48T37_HOURS 0x7ffb #define TODC_TYPE_MK48T37_MINUTES 0x7ffa #define TODC_TYPE_MK48T37_SECONDS 0x7ff9 #define TODC_TYPE_MK48T37_CNTL_B 0x7ff9 #define TODC_TYPE_MK48T37_CNTL_A 0x7ff8 #define TODC_TYPE_MK48T37_WATCHDOG 0x7ff7 #define TODC_TYPE_MK48T37_INTERRUPTS 0x7ff6 #define TODC_TYPE_MK48T37_ALARM_DATE 0x7ff5 #define TODC_TYPE_MK48T37_ALARM_HOUR 0x7ff4 #define TODC_TYPE_MK48T37_ALARM_MINUTES 0x7ff3 #define TODC_TYPE_MK48T37_ALARM_SECONDS 0x7ff2 #define TODC_TYPE_MK48T37_CENTURY 0x7ff1 #define TODC_TYPE_MK48T37_FLAGS 0x7ff0 #define TODC_TYPE_MK48T59_YEAR 0x1fff #define TODC_TYPE_MK48T59_MONTH 0x1ffe #define TODC_TYPE_MK48T59_DOM 0x1ffd /* Day of Month */ #define TODC_TYPE_MK48T59_DOW 0x1ffc /* Day of Week */ #define TODC_TYPE_MK48T59_HOURS 0x1ffb #define TODC_TYPE_MK48T59_MINUTES 0x1ffa #define TODC_TYPE_MK48T59_SECONDS 0x1ff9 #define TODC_TYPE_MK48T59_CNTL_B 0x1ff9 #define TODC_TYPE_MK48T59_CNTL_A 0x1ff8 #define TODC_TYPE_MK48T59_WATCHDOG 0x1fff #define TODC_TYPE_MK48T59_INTERRUPTS 0x1fff #define TODC_TYPE_MK48T59_ALARM_DATE 0x1fff #define TODC_TYPE_MK48T59_ALARM_HOUR 0x1fff #define TODC_TYPE_MK48T59_ALARM_MINUTES 0x1fff #define TODC_TYPE_MK48T59_ALARM_SECONDS 0x1fff #define TODC_TYPE_MK48T59_CENTURY 0x1fff #define TODC_TYPE_MK48T59_FLAGS 0x1fff #define TODC_TYPE_DS1501_YEAR 0x06 #define TODC_TYPE_DS1501_MONTH 0x05 #define TODC_TYPE_DS1501_DOM 0x04 /* Day of Month */ #define TODC_TYPE_DS1501_DOW 0x03 /* Day of Week */ #define TODC_TYPE_DS1501_HOURS 0x02 #define TODC_TYPE_DS1501_MINUTES 0x01 #define TODC_TYPE_DS1501_SECONDS 0x00 #define TODC_TYPE_DS1501_CNTL_B 0x0f #define TODC_TYPE_DS1501_CNTL_A 0x0f #define TODC_TYPE_DS1501_WATCHDOG 0xff #define TODC_TYPE_DS1501_INTERRUPTS 0xff #define TODC_TYPE_DS1501_ALARM_DATE 0x0b #define TODC_TYPE_DS1501_ALARM_HOUR 0x0a #define TODC_TYPE_DS1501_ALARM_MINUTES 0x09 #define TODC_TYPE_DS1501_ALARM_SECONDS 0x08 #define TODC_TYPE_DS1501_CENTURY 0x07 #define TODC_TYPE_DS1501_FLAGS 0xff #define TODC_TYPE_DS1557_YEAR 0x7ffff #define TODC_TYPE_DS1557_MONTH 0x7fffe #define TODC_TYPE_DS1557_DOM 0x7fffd /* Day of Month */ #define TODC_TYPE_DS1557_DOW 0x7fffc /* Day of Week */ #define TODC_TYPE_DS1557_HOURS 0x7fffb #define TODC_TYPE_DS1557_MINUTES 0x7fffa #define TODC_TYPE_DS1557_SECONDS 0x7fff9 #define TODC_TYPE_DS1557_CNTL_B 0x7fff9 #define TODC_TYPE_DS1557_CNTL_A 0x7fff8 /* control_a R/W regs */ #define TODC_TYPE_DS1557_WATCHDOG 0x7fff7 #define TODC_TYPE_DS1557_INTERRUPTS 0x7fff6 #define TODC_TYPE_DS1557_ALARM_DATE 0x7fff5 #define TODC_TYPE_DS1557_ALARM_HOUR 0x7fff4 #define TODC_TYPE_DS1557_ALARM_MINUTES 0x7fff3 #define TODC_TYPE_DS1557_ALARM_SECONDS 0x7fff2 #define TODC_TYPE_DS1557_CENTURY 0x7fff8 #define TODC_TYPE_DS1557_FLAGS 0x7fff0 #define TODC_TYPE_DS1643_YEAR 0x1fff #define TODC_TYPE_DS1643_MONTH 0x1ffe #define TODC_TYPE_DS1643_DOM 0x1ffd /* Day of Month */ #define TODC_TYPE_DS1643_DOW 0x1ffc /* Day of Week */ #define TODC_TYPE_DS1643_HOURS 0x1ffb #define TODC_TYPE_DS1643_MINUTES 0x1ffa #define TODC_TYPE_DS1643_SECONDS 0x1ff9 #define TODC_TYPE_DS1643_CNTL_B 0x1ff9 #define TODC_TYPE_DS1643_CNTL_A 0x1ff8 /* control_a R/W regs */ #define TODC_TYPE_DS1643_WATCHDOG 0x1fff #define TODC_TYPE_DS1643_INTERRUPTS 0x1fff #define TODC_TYPE_DS1643_ALARM_DATE 0x1fff #define TODC_TYPE_DS1643_ALARM_HOUR 0x1fff #define TODC_TYPE_DS1643_ALARM_MINUTES 0x1fff #define TODC_TYPE_DS1643_ALARM_SECONDS 0x1fff #define TODC_TYPE_DS1643_CENTURY 0x1ff8 #define TODC_TYPE_DS1643_FLAGS 0x1fff #define TODC_TYPE_DS1693_YEAR 0x09 #define TODC_TYPE_DS1693_MONTH 0x08 #define TODC_TYPE_DS1693_DOM 0x07 /* Day of Month */ #define TODC_TYPE_DS1693_DOW 0x06 /* Day of Week */ #define TODC_TYPE_DS1693_HOURS 0x04 #define TODC_TYPE_DS1693_MINUTES 0x02 #define TODC_TYPE_DS1693_SECONDS 0x00 #define TODC_TYPE_DS1693_CNTL_B 0x0b #define TODC_TYPE_DS1693_CNTL_A 0x0a #define TODC_TYPE_DS1693_WATCHDOG 0xff #define TODC_TYPE_DS1693_INTERRUPTS 0xff #define TODC_TYPE_DS1693_ALARM_DATE 0x49 #define TODC_TYPE_DS1693_ALARM_HOUR 0x05 #define TODC_TYPE_DS1693_ALARM_MINUTES 0x03 #define TODC_TYPE_DS1693_ALARM_SECONDS 0x01 #define TODC_TYPE_DS1693_CENTURY 0x48 #define TODC_TYPE_DS1693_FLAGS 0xff #define TODC_TYPE_DS1743_YEAR 0x1fff #define TODC_TYPE_DS1743_MONTH 0x1ffe #define TODC_TYPE_DS1743_DOM 0x1ffd /* Day of Month */ #define TODC_TYPE_DS1743_DOW 0x1ffc /* Day of Week */ #define TODC_TYPE_DS1743_HOURS 0x1ffb #define TODC_TYPE_DS1743_MINUTES 0x1ffa #define TODC_TYPE_DS1743_SECONDS 0x1ff9 #define TODC_TYPE_DS1743_CNTL_B 0x1ff9 #define TODC_TYPE_DS1743_CNTL_A 0x1ff8 /* control_a R/W regs */ #define TODC_TYPE_DS1743_WATCHDOG 0x1fff #define TODC_TYPE_DS1743_INTERRUPTS 0x1fff #define TODC_TYPE_DS1743_ALARM_DATE 0x1fff #define TODC_TYPE_DS1743_ALARM_HOUR 0x1fff #define TODC_TYPE_DS1743_ALARM_MINUTES 0x1fff #define TODC_TYPE_DS1743_ALARM_SECONDS 0x1fff #define TODC_TYPE_DS1743_CENTURY 0x1ff8 #define TODC_TYPE_DS1743_FLAGS 0x1fff #define TODC_TYPE_DS1746_YEAR 0x1ffff #define TODC_TYPE_DS1746_MONTH 0x1fffe #define TODC_TYPE_DS1746_DOM 0x1fffd /* Day of Month */ #define TODC_TYPE_DS1746_DOW 0x1fffc /* Day of Week */ #define TODC_TYPE_DS1746_HOURS 0x1fffb #define TODC_TYPE_DS1746_MINUTES 0x1fffa #define TODC_TYPE_DS1746_SECONDS 0x1fff9 #define TODC_TYPE_DS1746_CNTL_B 0x1fff9 #define TODC_TYPE_DS1746_CNTL_A 0x1fff8 /* control_a R/W regs */ #define TODC_TYPE_DS1746_WATCHDOG 0x00000 #define TODC_TYPE_DS1746_INTERRUPTS 0x00000 #define TODC_TYPE_DS1746_ALARM_DATE 0x00000 #define TODC_TYPE_DS1746_ALARM_HOUR 0x00000 #define TODC_TYPE_DS1746_ALARM_MINUTES 0x00000 #define TODC_TYPE_DS1746_ALARM_SECONDS 0x00000 #define TODC_TYPE_DS1746_CENTURY 0x00000 #define TODC_TYPE_DS1746_FLAGS 0x00000 #define TODC_TYPE_DS1747_YEAR 0x1ffff #define TODC_TYPE_DS1747_MONTH 0x1fffe #define TODC_TYPE_DS1747_DOM 0x1fffd /* Day of Month */ #define TODC_TYPE_DS1747_DOW 0x1fffc /* Day of Week */ #define TODC_TYPE_DS1747_HOURS 0x1fffb #define TODC_TYPE_DS1747_MINUTES 0x1fffa #define TODC_TYPE_DS1747_SECONDS 0x1fff9 #define TODC_TYPE_DS1747_CNTL_B 0x1fff9 #define TODC_TYPE_DS1747_CNTL_A 0x1fff8 /* control_a R/W regs */ #define TODC_TYPE_DS1747_WATCHDOG 0x00000 #define TODC_TYPE_DS1747_INTERRUPTS 0x00000 #define TODC_TYPE_DS1747_ALARM_DATE 0x00000 #define TODC_TYPE_DS1747_ALARM_HOUR 0x00000 #define TODC_TYPE_DS1747_ALARM_MINUTES 0x00000 #define TODC_TYPE_DS1747_ALARM_SECONDS 0x00000 #define TODC_TYPE_DS1747_CENTURY 0x00000 #define TODC_TYPE_DS1747_FLAGS 0x00000 #define TODC_TYPE_MC146818_YEAR 0x09 #define TODC_TYPE_MC146818_MONTH 0x08 #define TODC_TYPE_MC146818_DOM 0x07 /* Day of Month */ #define TODC_TYPE_MC146818_DOW 0x06 /* Day of Week */ #define TODC_TYPE_MC146818_HOURS 0x04 #define TODC_TYPE_MC146818_MINUTES 0x02 #define TODC_TYPE_MC146818_SECONDS 0x00 #define TODC_TYPE_MC146818_CNTL_B 0x0a #define TODC_TYPE_MC146818_CNTL_A 0x0b /* control_a R/W regs */ #define TODC_TYPE_MC146818_WATCHDOG 0x0c #define TODC_TYPE_MC146818_INTERRUPTS 0x0d #define TODC_TYPE_MC146818_ALARM_DATE 0xff #define TODC_TYPE_MC146818_ALARM_HOUR 0x05 #define TODC_TYPE_MC146818_ALARM_MINUTES 0x03 #define TODC_TYPE_MC146818_ALARM_SECONDS 0x01 #define TODC_TYPE_MC146818_CENTURY 0xff #define TODC_TYPE_MC146818_FLAGS 0xff #define TODC_TYPE_PC97307_YEAR 0x09 #define TODC_TYPE_PC97307_MONTH 0x08 #define TODC_TYPE_PC97307_DOM 0x07 /* Day of Month */ #define TODC_TYPE_PC97307_DOW 0x06 /* Day of Week */ #define TODC_TYPE_PC97307_HOURS 0x04 #define TODC_TYPE_PC97307_MINUTES 0x02 #define TODC_TYPE_PC97307_SECONDS 0x00 #define TODC_TYPE_PC97307_CNTL_B 0x0a #define TODC_TYPE_PC97307_CNTL_A 0x0b /* control_a R/W regs */ #define TODC_TYPE_PC97307_WATCHDOG 0x0c #define TODC_TYPE_PC97307_INTERRUPTS 0x0d #define TODC_TYPE_PC97307_ALARM_DATE 0xff #define TODC_TYPE_PC97307_ALARM_HOUR 0x05 #define TODC_TYPE_PC97307_ALARM_MINUTES 0x03 #define TODC_TYPE_PC97307_ALARM_SECONDS 0x01 #define TODC_TYPE_PC97307_CENTURY 0xff #define TODC_TYPE_PC97307_FLAGS 0xff /* * Define macros to allocate and init the todc_info_t table that will * be used by the todc_time.c routines. */ #define TODC_ALLOC() \ static todc_info_t todc_info_alloc; \ todc_info_t *todc_info = &todc_info_alloc; #define TODC_INIT(clock_type, as0, as1, data, bits) { \ todc_info->rtc_type = clock_type; \ \ todc_info->nvram_as0 = (unsigned char *)(as0); \ todc_info->nvram_as1 = (unsigned char *)(as1); \ todc_info->nvram_data = (unsigned char *)(data); \ \ todc_info->as0_bits = (bits); \ \ todc_info->year = clock_type ##_YEAR; \ todc_info->month = clock_type ##_MONTH; \ todc_info->day_of_month = clock_type ##_DOM; \ todc_info->day_of_week = clock_type ##_DOW; \ todc_info->hours = clock_type ##_HOURS; \ todc_info->minutes = clock_type ##_MINUTES; \ todc_info->seconds = clock_type ##_SECONDS; \ todc_info->control_b = clock_type ##_CNTL_B; \ todc_info->control_a = clock_type ##_CNTL_A; \ todc_info->watchdog = clock_type ##_WATCHDOG; \ todc_info->interrupts = clock_type ##_INTERRUPTS; \ todc_info->alarm_date = clock_type ##_ALARM_DATE; \ todc_info->alarm_hour = clock_type ##_ALARM_HOUR; \ todc_info->alarm_minutes = clock_type ##_ALARM_MINUTES; \ todc_info->alarm_seconds = clock_type ##_ALARM_SECONDS; \ todc_info->century = clock_type ##_CENTURY; \ todc_info->flags = clock_type ##_FLAGS; \ } #ifndef BCD_TO_BIN #define BCD_TO_BIN(val) ((val)=((val)&15) + ((val)>>4)*10) #endif #ifndef BIN_TO_BCD #define BIN_TO_BCD(val) ((val)=(((val)/10)<<4) + (val)%10) #endif extern todc_info_t *todc_info; unsigned char todc_direct_read_val(int addr); void todc_direct_write_val(int addr, unsigned char val); unsigned char todc_m48txx_read_val(int addr); void todc_m48txx_write_val(int addr, unsigned char val); unsigned char todc_mc146818_read_val(int addr); void todc_mc146818_write_val(int addr, unsigned char val); long todc_time_init(void); unsigned long todc_get_rtc_time(void); int todc_set_rtc_time(unsigned long nowtime); void todc_calibrate_decr(void); #endif /* __PPC_KERNEL_TODC_H */ |