1/* 2 * include/asm-ppc/todc.h 3 * 4 * Definitions for the M48Txx and mc146818 series of Time of day/Real Time 5 * Clock chips. 6 * 7 * Author: Mark A. Greer 8 * mgreer@mvista.com 9 * 10 * Copyright 2001 MontaVista Software Inc. 11 * 12 * This program is free software; you can redistribute it and/or modify it 13 * under the terms of the GNU General Public License as published by the 14 * Free Software Foundation; either version 2 of the License, or (at your 15 * option) any later version. 16 */ 17 18/* 19 * Support for the M48T37/M48T59/.../mc146818 Real Time Clock chips. 20 * Purpose is to make one generic file that handles all of these chips instead 21 * of every platform implementing the same code over & over again. 22 */ 23 24#ifndef __PPC_KERNEL_TODC_H 25#define __PPC_KERNEL_TODC_H 26 27typedef struct { 28 uint rtc_type; /* your particular chip */ 29 30 /* 31 * Following are the addresses of the AS0, AS1, and DATA registers 32 * of these chips. Note that these are board-specific. 33 */ 34 unsigned char *nvram_as0; 35 unsigned char *nvram_as1; 36 unsigned char *nvram_data; 37 38 /* 39 * Define bits to stop external set of regs from changing so 40 * the chip can be read/written reliably. 41 */ 42 unsigned char enable_read; 43 unsigned char enable_write; 44 45 /* 46 * Following is the number of AS0 address bits. This is normally 47 * 8 but some bad hardware routes address lines incorrectly. 48 */ 49 int as0_bits; 50 51 int nvram_size; /* Size of NVRAM on chip */ 52 int sw_flags; /* Software control flags */ 53 54 /* Following are the register offsets for the particular chip */ 55 int year; 56 int month; 57 int day_of_month; 58 int day_of_week; 59 int hours; 60 int minutes; 61 int seconds; 62 int control_b; 63 int control_a; 64 int watchdog; 65 int interrupts; 66 int alarm_date; 67 int alarm_hour; 68 int alarm_minutes; 69 int alarm_seconds; 70 int century; 71 int flags; 72 73 /* 74 * Some RTC chips have their NVRAM buried behind a addr/data pair of 75 * regs on the first level/clock registers. The following fields 76 * are the addresses for those addr/data regs. 77 */ 78 int nvram_addr_reg; 79 int nvram_data_reg; 80} todc_info_t; 81 82/* 83 * Define the types of TODC/RTC variants that are supported in 84 * arch/ppc/kernel/todc_time.c 85 * Make a new one of these for any chip somehow differs from what's already 86 * defined. That way, if you ever need to put in code to touch those 87 * bits/registers in todc_time.c, you can put it inside an 88 * 'if (todc_info->rtc_type == TODC_TYPE_XXX)' so you won't break 89 * anyone else. 90 */ 91#define TODC_TYPE_MK48T35 1 92#define TODC_TYPE_MK48T37 2 93#define TODC_TYPE_MK48T59 3 94#define TODC_TYPE_DS1693 4 /* Dallas DS1693 RTC */ 95#define TODC_TYPE_DS1743 5 /* Dallas DS1743 RTC */ 96#define TODC_TYPE_DS1746 6 /* Dallas DS1746 RTC */ 97#define TODC_TYPE_DS1747 7 /* Dallas DS1747 RTC */ 98#define TODC_TYPE_DS1501 8 /* Dallas DS1501 RTC */ 99#define TODC_TYPE_DS1643 9 /* Dallas DS1643 RTC */ 100#define TODC_TYPE_PC97307 10 /* PC97307 internal RTC */ 101#define TODC_TYPE_DS1557 11 /* Dallas DS1557 RTC */ 102#define TODC_TYPE_MC146818 100 /* Leave room for m48txx's */ 103 104/* 105 * Bit to clear/set to enable reads/writes to the chip 106 */ 107#define TODC_MK48TXX_CNTL_A_R 0x40 108#define TODC_MK48TXX_CNTL_A_W 0x80 109#define TODC_MK48TXX_DAY_CB 0x80 110 111#define TODC_DS1501_CNTL_B_TE 0x80 112 113/* 114 * Define flag bits used by todc routines. 115 */ 116#define TODC_FLAG_2_LEVEL_NVRAM 0x00000001 117 118/* 119 * Define the values for the various RTC's that should to into the todc_info 120 * table. 121 * Note: The XXX_NVRAM_SIZE, XXX_NVRAM_ADDR_REG, and XXX_NVRAM_DATA_REG only 122 * matter if XXX_SW_FLAGS has TODC_FLAG_2_LEVEL_NVRAM set. 123 */ 124#define TODC_TYPE_MK48T35_NVRAM_SIZE 0x7ff8 125#define TODC_TYPE_MK48T35_SW_FLAGS 0 126#define TODC_TYPE_MK48T35_YEAR 0x7fff 127#define TODC_TYPE_MK48T35_MONTH 0x7ffe 128#define TODC_TYPE_MK48T35_DOM 0x7ffd /* Day of Month */ 129#define TODC_TYPE_MK48T35_DOW 0x7ffc /* Day of Week */ 130#define TODC_TYPE_MK48T35_HOURS 0x7ffb 131#define TODC_TYPE_MK48T35_MINUTES 0x7ffa 132#define TODC_TYPE_MK48T35_SECONDS 0x7ff9 133#define TODC_TYPE_MK48T35_CNTL_B 0x7ff9 134#define TODC_TYPE_MK48T35_CNTL_A 0x7ff8 135#define TODC_TYPE_MK48T35_WATCHDOG 0x0000 136#define TODC_TYPE_MK48T35_INTERRUPTS 0x0000 137#define TODC_TYPE_MK48T35_ALARM_DATE 0x0000 138#define TODC_TYPE_MK48T35_ALARM_HOUR 0x0000 139#define TODC_TYPE_MK48T35_ALARM_MINUTES 0x0000 140#define TODC_TYPE_MK48T35_ALARM_SECONDS 0x0000 141#define TODC_TYPE_MK48T35_CENTURY 0x0000 142#define TODC_TYPE_MK48T35_FLAGS 0x0000 143#define TODC_TYPE_MK48T35_NVRAM_ADDR_REG 0 144#define TODC_TYPE_MK48T35_NVRAM_DATA_REG 0 145 146#define TODC_TYPE_MK48T37_NVRAM_SIZE 0x7ff0 147#define TODC_TYPE_MK48T37_SW_FLAGS 0 148#define TODC_TYPE_MK48T37_YEAR 0x7fff 149#define TODC_TYPE_MK48T37_MONTH 0x7ffe 150#define TODC_TYPE_MK48T37_DOM 0x7ffd /* Day of Month */ 151#define TODC_TYPE_MK48T37_DOW 0x7ffc /* Day of Week */ 152#define TODC_TYPE_MK48T37_HOURS 0x7ffb 153#define TODC_TYPE_MK48T37_MINUTES 0x7ffa 154#define TODC_TYPE_MK48T37_SECONDS 0x7ff9 155#define TODC_TYPE_MK48T37_CNTL_B 0x7ff9 156#define TODC_TYPE_MK48T37_CNTL_A 0x7ff8 157#define TODC_TYPE_MK48T37_WATCHDOG 0x7ff7 158#define TODC_TYPE_MK48T37_INTERRUPTS 0x7ff6 159#define TODC_TYPE_MK48T37_ALARM_DATE 0x7ff5 160#define TODC_TYPE_MK48T37_ALARM_HOUR 0x7ff4 161#define TODC_TYPE_MK48T37_ALARM_MINUTES 0x7ff3 162#define TODC_TYPE_MK48T37_ALARM_SECONDS 0x7ff2 163#define TODC_TYPE_MK48T37_CENTURY 0x7ff1 164#define TODC_TYPE_MK48T37_FLAGS 0x7ff0 165#define TODC_TYPE_MK48T37_NVRAM_ADDR_REG 0 166#define TODC_TYPE_MK48T37_NVRAM_DATA_REG 0 167 168#define TODC_TYPE_MK48T59_NVRAM_SIZE 0x1ff0 169#define TODC_TYPE_MK48T59_SW_FLAGS 0 170#define TODC_TYPE_MK48T59_YEAR 0x1fff 171#define TODC_TYPE_MK48T59_MONTH 0x1ffe 172#define TODC_TYPE_MK48T59_DOM 0x1ffd /* Day of Month */ 173#define TODC_TYPE_MK48T59_DOW 0x1ffc /* Day of Week */ 174#define TODC_TYPE_MK48T59_HOURS 0x1ffb 175#define TODC_TYPE_MK48T59_MINUTES 0x1ffa 176#define TODC_TYPE_MK48T59_SECONDS 0x1ff9 177#define TODC_TYPE_MK48T59_CNTL_B 0x1ff9 178#define TODC_TYPE_MK48T59_CNTL_A 0x1ff8 179#define TODC_TYPE_MK48T59_WATCHDOG 0x1fff 180#define TODC_TYPE_MK48T59_INTERRUPTS 0x1fff 181#define TODC_TYPE_MK48T59_ALARM_DATE 0x1fff 182#define TODC_TYPE_MK48T59_ALARM_HOUR 0x1fff 183#define TODC_TYPE_MK48T59_ALARM_MINUTES 0x1fff 184#define TODC_TYPE_MK48T59_ALARM_SECONDS 0x1fff 185#define TODC_TYPE_MK48T59_CENTURY 0x1fff 186#define TODC_TYPE_MK48T59_FLAGS 0x1fff 187#define TODC_TYPE_MK48T59_NVRAM_ADDR_REG 0 188#define TODC_TYPE_MK48T59_NVRAM_DATA_REG 0 189 190#define TODC_TYPE_DS1501_NVRAM_SIZE 0x100 191#define TODC_TYPE_DS1501_SW_FLAGS TODC_FLAG_2_LEVEL_NVRAM 192#define TODC_TYPE_DS1501_YEAR (TODC_TYPE_DS1501_NVRAM_SIZE + 0x06) 193#define TODC_TYPE_DS1501_MONTH (TODC_TYPE_DS1501_NVRAM_SIZE + 0x05) 194#define TODC_TYPE_DS1501_DOM (TODC_TYPE_DS1501_NVRAM_SIZE + 0x04) 195#define TODC_TYPE_DS1501_DOW (TODC_TYPE_DS1501_NVRAM_SIZE + 0x03) 196#define TODC_TYPE_DS1501_HOURS (TODC_TYPE_DS1501_NVRAM_SIZE + 0x02) 197#define TODC_TYPE_DS1501_MINUTES (TODC_TYPE_DS1501_NVRAM_SIZE + 0x01) 198#define TODC_TYPE_DS1501_SECONDS (TODC_TYPE_DS1501_NVRAM_SIZE + 0x00) 199#define TODC_TYPE_DS1501_CNTL_B (TODC_TYPE_DS1501_NVRAM_SIZE + 0x0f) 200#define TODC_TYPE_DS1501_CNTL_A (TODC_TYPE_DS1501_NVRAM_SIZE + 0x0f) 201#define TODC_TYPE_DS1501_WATCHDOG (TODC_TYPE_DS1501_NVRAM_SIZE + 0xff) 202#define TODC_TYPE_DS1501_INTERRUPTS (TODC_TYPE_DS1501_NVRAM_SIZE + 0xff) 203#define TODC_TYPE_DS1501_ALARM_DATE (TODC_TYPE_DS1501_NVRAM_SIZE + 0x0b) 204#define TODC_TYPE_DS1501_ALARM_HOUR (TODC_TYPE_DS1501_NVRAM_SIZE + 0x0a) 205#define TODC_TYPE_DS1501_ALARM_MINUTES (TODC_TYPE_DS1501_NVRAM_SIZE + 0x09) 206#define TODC_TYPE_DS1501_ALARM_SECONDS (TODC_TYPE_DS1501_NVRAM_SIZE + 0x08) 207#define TODC_TYPE_DS1501_CENTURY (TODC_TYPE_DS1501_NVRAM_SIZE + 0x07) 208#define TODC_TYPE_DS1501_FLAGS (TODC_TYPE_DS1501_NVRAM_SIZE + 0xff) 209#define TODC_TYPE_DS1501_NVRAM_ADDR_REG 0x10 210#define TODC_TYPE_DS1501_NVRAM_DATA_REG 0x13 211 212#define TODC_TYPE_DS1557_NVRAM_SIZE 0x7fff0 213#define TODC_TYPE_DS1557_SW_FLAGS 0 214#define TODC_TYPE_DS1557_YEAR 0x7ffff 215#define TODC_TYPE_DS1557_MONTH 0x7fffe 216#define TODC_TYPE_DS1557_DOM 0x7fffd /* Day of Month */ 217#define TODC_TYPE_DS1557_DOW 0x7fffc /* Day of Week */ 218#define TODC_TYPE_DS1557_HOURS 0x7fffb 219#define TODC_TYPE_DS1557_MINUTES 0x7fffa 220#define TODC_TYPE_DS1557_SECONDS 0x7fff9 221#define TODC_TYPE_DS1557_CNTL_B 0x7fff9 222#define TODC_TYPE_DS1557_CNTL_A 0x7fff8 /* control_a R/W regs */ 223#define TODC_TYPE_DS1557_WATCHDOG 0x7fff7 224#define TODC_TYPE_DS1557_INTERRUPTS 0x7fff6 225#define TODC_TYPE_DS1557_ALARM_DATE 0x7fff5 226#define TODC_TYPE_DS1557_ALARM_HOUR 0x7fff4 227#define TODC_TYPE_DS1557_ALARM_MINUTES 0x7fff3 228#define TODC_TYPE_DS1557_ALARM_SECONDS 0x7fff2 229#define TODC_TYPE_DS1557_CENTURY 0x7fff8 230#define TODC_TYPE_DS1557_FLAGS 0x7fff0 231#define TODC_TYPE_DS1557_NVRAM_ADDR_REG 0 232#define TODC_TYPE_DS1557_NVRAM_DATA_REG 0 233 234#define TODC_TYPE_DS1643_NVRAM_SIZE 0x1ff8 235#define TODC_TYPE_DS1643_SW_FLAGS 0 236#define TODC_TYPE_DS1643_YEAR 0x1fff 237#define TODC_TYPE_DS1643_MONTH 0x1ffe 238#define TODC_TYPE_DS1643_DOM 0x1ffd /* Day of Month */ 239#define TODC_TYPE_DS1643_DOW 0x1ffc /* Day of Week */ 240#define TODC_TYPE_DS1643_HOURS 0x1ffb 241#define TODC_TYPE_DS1643_MINUTES 0x1ffa 242#define TODC_TYPE_DS1643_SECONDS 0x1ff9 243#define TODC_TYPE_DS1643_CNTL_B 0x1ff9 244#define TODC_TYPE_DS1643_CNTL_A 0x1ff8 /* control_a R/W regs */ 245#define TODC_TYPE_DS1643_WATCHDOG 0x1fff 246#define TODC_TYPE_DS1643_INTERRUPTS 0x1fff 247#define TODC_TYPE_DS1643_ALARM_DATE 0x1fff 248#define TODC_TYPE_DS1643_ALARM_HOUR 0x1fff 249#define TODC_TYPE_DS1643_ALARM_MINUTES 0x1fff 250#define TODC_TYPE_DS1643_ALARM_SECONDS 0x1fff 251#define TODC_TYPE_DS1643_CENTURY 0x1ff8 252#define TODC_TYPE_DS1643_FLAGS 0x1fff 253#define TODC_TYPE_DS1643_NVRAM_ADDR_REG 0 254#define TODC_TYPE_DS1643_NVRAM_DATA_REG 0 255 256#define TODC_TYPE_DS1693_NVRAM_SIZE 0 /* Not handled yet */ 257#define TODC_TYPE_DS1693_SW_FLAGS 0 258#define TODC_TYPE_DS1693_YEAR 0x09 259#define TODC_TYPE_DS1693_MONTH 0x08 260#define TODC_TYPE_DS1693_DOM 0x07 /* Day of Month */ 261#define TODC_TYPE_DS1693_DOW 0x06 /* Day of Week */ 262#define TODC_TYPE_DS1693_HOURS 0x04 263#define TODC_TYPE_DS1693_MINUTES 0x02 264#define TODC_TYPE_DS1693_SECONDS 0x00 265#define TODC_TYPE_DS1693_CNTL_B 0x0b 266#define TODC_TYPE_DS1693_CNTL_A 0x0a 267#define TODC_TYPE_DS1693_WATCHDOG 0xff 268#define TODC_TYPE_DS1693_INTERRUPTS 0xff 269#define TODC_TYPE_DS1693_ALARM_DATE 0x49 270#define TODC_TYPE_DS1693_ALARM_HOUR 0x05 271#define TODC_TYPE_DS1693_ALARM_MINUTES 0x03 272#define TODC_TYPE_DS1693_ALARM_SECONDS 0x01 273#define TODC_TYPE_DS1693_CENTURY 0x48 274#define TODC_TYPE_DS1693_FLAGS 0xff 275#define TODC_TYPE_DS1693_NVRAM_ADDR_REG 0 276#define TODC_TYPE_DS1693_NVRAM_DATA_REG 0 277 278#define TODC_TYPE_DS1743_NVRAM_SIZE 0x1ff8 279#define TODC_TYPE_DS1743_SW_FLAGS 0 280#define TODC_TYPE_DS1743_YEAR 0x1fff 281#define TODC_TYPE_DS1743_MONTH 0x1ffe 282#define TODC_TYPE_DS1743_DOM 0x1ffd /* Day of Month */ 283#define TODC_TYPE_DS1743_DOW 0x1ffc /* Day of Week */ 284#define TODC_TYPE_DS1743_HOURS 0x1ffb 285#define TODC_TYPE_DS1743_MINUTES 0x1ffa 286#define TODC_TYPE_DS1743_SECONDS 0x1ff9 287#define TODC_TYPE_DS1743_CNTL_B 0x1ff9 288#define TODC_TYPE_DS1743_CNTL_A 0x1ff8 /* control_a R/W regs */ 289#define TODC_TYPE_DS1743_WATCHDOG 0x1fff 290#define TODC_TYPE_DS1743_INTERRUPTS 0x1fff 291#define TODC_TYPE_DS1743_ALARM_DATE 0x1fff 292#define TODC_TYPE_DS1743_ALARM_HOUR 0x1fff 293#define TODC_TYPE_DS1743_ALARM_MINUTES 0x1fff 294#define TODC_TYPE_DS1743_ALARM_SECONDS 0x1fff 295#define TODC_TYPE_DS1743_CENTURY 0x1ff8 296#define TODC_TYPE_DS1743_FLAGS 0x1fff 297#define TODC_TYPE_DS1743_NVRAM_ADDR_REG 0 298#define TODC_TYPE_DS1743_NVRAM_DATA_REG 0 299 300#define TODC_TYPE_DS1746_NVRAM_SIZE 0x1fff8 301#define TODC_TYPE_DS1746_SW_FLAGS 0 302#define TODC_TYPE_DS1746_YEAR 0x1ffff 303#define TODC_TYPE_DS1746_MONTH 0x1fffe 304#define TODC_TYPE_DS1746_DOM 0x1fffd /* Day of Month */ 305#define TODC_TYPE_DS1746_DOW 0x1fffc /* Day of Week */ 306#define TODC_TYPE_DS1746_HOURS 0x1fffb 307#define TODC_TYPE_DS1746_MINUTES 0x1fffa 308#define TODC_TYPE_DS1746_SECONDS 0x1fff9 309#define TODC_TYPE_DS1746_CNTL_B 0x1fff9 310#define TODC_TYPE_DS1746_CNTL_A 0x1fff8 /* control_a R/W regs */ 311#define TODC_TYPE_DS1746_WATCHDOG 0x00000 312#define TODC_TYPE_DS1746_INTERRUPTS 0x00000 313#define TODC_TYPE_DS1746_ALARM_DATE 0x00000 314#define TODC_TYPE_DS1746_ALARM_HOUR 0x00000 315#define TODC_TYPE_DS1746_ALARM_MINUTES 0x00000 316#define TODC_TYPE_DS1746_ALARM_SECONDS 0x00000 317#define TODC_TYPE_DS1746_CENTURY 0x00000 318#define TODC_TYPE_DS1746_FLAGS 0x00000 319#define TODC_TYPE_DS1746_NVRAM_ADDR_REG 0 320#define TODC_TYPE_DS1746_NVRAM_DATA_REG 0 321 322#define TODC_TYPE_DS1747_NVRAM_SIZE 0x7fff8 323#define TODC_TYPE_DS1747_SW_FLAGS 0 324#define TODC_TYPE_DS1747_YEAR 0x7ffff 325#define TODC_TYPE_DS1747_MONTH 0x7fffe 326#define TODC_TYPE_DS1747_DOM 0x7fffd /* Day of Month */ 327#define TODC_TYPE_DS1747_DOW 0x7fffc /* Day of Week */ 328#define TODC_TYPE_DS1747_HOURS 0x7fffb 329#define TODC_TYPE_DS1747_MINUTES 0x7fffa 330#define TODC_TYPE_DS1747_SECONDS 0x7fff9 331#define TODC_TYPE_DS1747_CNTL_B 0x7fff9 332#define TODC_TYPE_DS1747_CNTL_A 0x7fff8 /* control_a R/W regs */ 333#define TODC_TYPE_DS1747_WATCHDOG 0x00000 334#define TODC_TYPE_DS1747_INTERRUPTS 0x00000 335#define TODC_TYPE_DS1747_ALARM_DATE 0x00000 336#define TODC_TYPE_DS1747_ALARM_HOUR 0x00000 337#define TODC_TYPE_DS1747_ALARM_MINUTES 0x00000 338#define TODC_TYPE_DS1747_ALARM_SECONDS 0x00000 339#define TODC_TYPE_DS1747_CENTURY 0x00000 340#define TODC_TYPE_DS1747_FLAGS 0x00000 341#define TODC_TYPE_DS1747_NVRAM_ADDR_REG 0 342#define TODC_TYPE_DS1747_NVRAM_DATA_REG 0 343 344#define TODC_TYPE_MC146818_NVRAM_SIZE 0 /* XXXX */ 345#define TODC_TYPE_MC146818_SW_FLAGS 0 346#define TODC_TYPE_MC146818_YEAR 0x09 347#define TODC_TYPE_MC146818_MONTH 0x08 348#define TODC_TYPE_MC146818_DOM 0x07 /* Day of Month */ 349#define TODC_TYPE_MC146818_DOW 0x06 /* Day of Week */ 350#define TODC_TYPE_MC146818_HOURS 0x04 351#define TODC_TYPE_MC146818_MINUTES 0x02 352#define TODC_TYPE_MC146818_SECONDS 0x00 353#define TODC_TYPE_MC146818_CNTL_B 0x0a 354#define TODC_TYPE_MC146818_CNTL_A 0x0b /* control_a R/W regs */ 355#define TODC_TYPE_MC146818_WATCHDOG 0x0c 356#define TODC_TYPE_MC146818_INTERRUPTS 0x0d 357#define TODC_TYPE_MC146818_ALARM_DATE 0xff 358#define TODC_TYPE_MC146818_ALARM_HOUR 0x05 359#define TODC_TYPE_MC146818_ALARM_MINUTES 0x03 360#define TODC_TYPE_MC146818_ALARM_SECONDS 0x01 361#define TODC_TYPE_MC146818_CENTURY 0xff 362#define TODC_TYPE_MC146818_FLAGS 0xff 363#define TODC_TYPE_MC146818_NVRAM_ADDR_REG 0 364#define TODC_TYPE_MC146818_NVRAM_DATA_REG 0 365 366#define TODC_TYPE_PC97307_NVRAM_SIZE 0 /* No NVRAM? */ 367#define TODC_TYPE_PC97307_SW_FLAGS 0 368#define TODC_TYPE_PC97307_YEAR 0x09 369#define TODC_TYPE_PC97307_MONTH 0x08 370#define TODC_TYPE_PC97307_DOM 0x07 /* Day of Month */ 371#define TODC_TYPE_PC97307_DOW 0x06 /* Day of Week */ 372#define TODC_TYPE_PC97307_HOURS 0x04 373#define TODC_TYPE_PC97307_MINUTES 0x02 374#define TODC_TYPE_PC97307_SECONDS 0x00 375#define TODC_TYPE_PC97307_CNTL_B 0x0a 376#define TODC_TYPE_PC97307_CNTL_A 0x0b /* control_a R/W regs */ 377#define TODC_TYPE_PC97307_WATCHDOG 0x0c 378#define TODC_TYPE_PC97307_INTERRUPTS 0x0d 379#define TODC_TYPE_PC97307_ALARM_DATE 0xff 380#define TODC_TYPE_PC97307_ALARM_HOUR 0x05 381#define TODC_TYPE_PC97307_ALARM_MINUTES 0x03 382#define TODC_TYPE_PC97307_ALARM_SECONDS 0x01 383#define TODC_TYPE_PC97307_CENTURY 0xff 384#define TODC_TYPE_PC97307_FLAGS 0xff 385#define TODC_TYPE_PC97307_NVRAM_ADDR_REG 0 386#define TODC_TYPE_PC97307_NVRAM_DATA_REG 0 387 388/* 389 * Define macros to allocate and init the todc_info_t table that will 390 * be used by the todc_time.c routines. 391 */ 392#define TODC_ALLOC() \ 393 static todc_info_t todc_info_alloc; \ 394 todc_info_t *todc_info = &todc_info_alloc; 395 396#define TODC_INIT(clock_type, as0, as1, data, bits) { \ 397 todc_info->rtc_type = clock_type; \ 398 \ 399 todc_info->nvram_as0 = (unsigned char *)(as0); \ 400 todc_info->nvram_as1 = (unsigned char *)(as1); \ 401 todc_info->nvram_data = (unsigned char *)(data); \ 402 \ 403 todc_info->as0_bits = (bits); \ 404 \ 405 todc_info->nvram_size = clock_type ##_NVRAM_SIZE; \ 406 todc_info->sw_flags = clock_type ##_SW_FLAGS; \ 407 \ 408 todc_info->year = clock_type ##_YEAR; \ 409 todc_info->month = clock_type ##_MONTH; \ 410 todc_info->day_of_month = clock_type ##_DOM; \ 411 todc_info->day_of_week = clock_type ##_DOW; \ 412 todc_info->hours = clock_type ##_HOURS; \ 413 todc_info->minutes = clock_type ##_MINUTES; \ 414 todc_info->seconds = clock_type ##_SECONDS; \ 415 todc_info->control_b = clock_type ##_CNTL_B; \ 416 todc_info->control_a = clock_type ##_CNTL_A; \ 417 todc_info->watchdog = clock_type ##_WATCHDOG; \ 418 todc_info->interrupts = clock_type ##_INTERRUPTS; \ 419 todc_info->alarm_date = clock_type ##_ALARM_DATE; \ 420 todc_info->alarm_hour = clock_type ##_ALARM_HOUR; \ 421 todc_info->alarm_minutes = clock_type ##_ALARM_MINUTES; \ 422 todc_info->alarm_seconds = clock_type ##_ALARM_SECONDS; \ 423 todc_info->century = clock_type ##_CENTURY; \ 424 todc_info->flags = clock_type ##_FLAGS; \ 425 \ 426 todc_info->nvram_addr_reg = clock_type ##_NVRAM_ADDR_REG; \ 427 todc_info->nvram_data_reg = clock_type ##_NVRAM_DATA_REG; \ 428} 429 430#ifndef BCD_TO_BIN 431#define BCD_TO_BIN(val) ((val)=((val)&15) + ((val)>>4)*10) 432#endif 433 434#ifndef BIN_TO_BCD 435#define BIN_TO_BCD(val) ((val)=(((val)/10)<<4) + (val)%10) 436#endif 437 438extern todc_info_t *todc_info; 439 440unsigned char todc_direct_read_val(int addr); 441void todc_direct_write_val(int addr, unsigned char val); 442unsigned char todc_m48txx_read_val(int addr); 443void todc_m48txx_write_val(int addr, unsigned char val); 444unsigned char todc_mc146818_read_val(int addr); 445void todc_mc146818_write_val(int addr, unsigned char val); 446 447long todc_time_init(void); 448unsigned long todc_get_rtc_time(void); 449int todc_set_rtc_time(unsigned long nowtime); 450void todc_calibrate_decr(void); 451 452#endif /* __PPC_KERNEL_TODC_H */ 453