include/asm-powerpc/todc.h

   1 /*
   2  * Definitions for the M48Txx and mc146818 series of Time of day/Real Time
   3  * Clock chips.
   4  *
   5  * Author: Mark A. Greer <mgreer@mvista.com>
   6  *
   7  * 2001 (c) MontaVista, Software, Inc.  This file is licensed under
   8  * the terms of the GNU General Public License version 2.  This program
   9  * is licensed "as is" without any warranty of any kind, whether express
  10  * or implied.
  11  */
  12
  13 /*
  14  * Support for the M48T37/M48T59/.../mc146818 Real Time Clock chips.
  15  * Purpose is to make one generic file that handles all of these chips instead
  16  * of every platform implementing the same code over & over again.
  17  */
  18
  19 #ifndef __PPC_KERNEL_TODC_H
  20 #define __PPC_KERNEL_TODC_H
  21
  22 typedef struct {
  23         uint rtc_type;          /* your particular chip */
  24
  25         /*
  26          * Following are the addresses of the AS0, AS1, and DATA registers
  27          * of these chips.  Note that these are board-specific.
  28          */
  29         unsigned int nvram_as0;
  30         unsigned int nvram_as1;
  31         unsigned int nvram_data;
  32
  33         /*
  34          * Define bits to stop external set of regs from changing so
  35          * the chip can be read/written reliably.
  36          */
  37         unsigned char enable_read;
  38         unsigned char enable_write;
  39
  40         /*
  41          * Following is the number of AS0 address bits.  This is normally
  42          * 8 but some bad hardware routes address lines incorrectly.
  43          */
  44         int as0_bits;
  45
  46         int nvram_size; /* Size of NVRAM on chip */
  47         int sw_flags;   /* Software control flags */
  48
  49         /* Following are the register offsets for the particular chip */
  50         int year;
  51         int month;
  52         int day_of_month;
  53         int day_of_week;
  54         int hours;
  55         int minutes;
  56         int seconds;
  57         int control_b;
  58         int control_a;
  59         int watchdog;
  60         int interrupts;
  61         int alarm_date;
  62         int alarm_hour;
  63         int alarm_minutes;
  64         int alarm_seconds;
  65         int century;
  66         int flags;
  67
  68         /*
  69          * Some RTC chips have their NVRAM buried behind a addr/data pair of
  70          * regs on the first level/clock registers.  The following fields
  71          * are the addresses for those addr/data regs.
  72          */
  73         int nvram_addr_reg;
  74         int nvram_data_reg;
  75 } todc_info_t;
  76
  77 /*
  78  * Define the types of TODC/RTC variants that are supported in
  79  * arch/ppc/kernel/todc_time.c
  80  * Make a new one of these for any chip somehow differs from what's already
  81  * defined.  That way, if you ever need to put in code to touch those
  82  * bits/registers in todc_time.c, you can put it inside an
  83  * 'if (todc_info->rtc_type == TODC_TYPE_XXX)' so you won't break
  84  * anyone else.
  85  */
  86 #define TODC_TYPE_MK48T35               1
  87 #define TODC_TYPE_MK48T37               2
  88 #define TODC_TYPE_MK48T59               3
  89 #define TODC_TYPE_DS1693                4       /* Dallas DS1693 RTC */
  90 #define TODC_TYPE_DS1743                5       /* Dallas DS1743 RTC */
  91 #define TODC_TYPE_DS1746                6       /* Dallas DS1746 RTC */
  92 #define TODC_TYPE_DS1747                7       /* Dallas DS1747 RTC */
  93 #define TODC_TYPE_DS1501                8       /* Dallas DS1501 RTC */
  94 #define TODC_TYPE_DS1643                9       /* Dallas DS1643 RTC */
  95 #define TODC_TYPE_PC97307               10      /* PC97307 internal RTC */
  96 #define TODC_TYPE_DS1557                11      /* Dallas DS1557 RTC */
  97 #define TODC_TYPE_DS17285               12      /* Dallas DS17285 RTC */
  98 #define TODC_TYPE_DS1553                13      /* Dallas DS1553 RTC */
  99 #define TODC_TYPE_MC146818              100     /* Leave room for m48txx's */
 100
 101 /*
 102  * Bit to clear/set to enable reads/writes to the chip
 103  */
 104 #define TODC_MK48TXX_CNTL_A_R           0x40
 105 #define TODC_MK48TXX_CNTL_A_W           0x80
 106 #define TODC_MK48TXX_DAY_CB             0x80
 107
 108 #define TODC_DS1501_CNTL_B_TE           0x80
 109
 110 /*
 111  * Define flag bits used by todc routines.
 112  */
 113 #define TODC_FLAG_2_LEVEL_NVRAM         0x00000001
 114
 115 /*
 116  * Define the values for the various RTC's that should to into the todc_info
 117  * table.
 118  * Note: The XXX_NVRAM_SIZE, XXX_NVRAM_ADDR_REG, and XXX_NVRAM_DATA_REG only
 119  * matter if XXX_SW_FLAGS has TODC_FLAG_2_LEVEL_NVRAM set.
 120  */
 121 #define TODC_TYPE_MK48T35_NVRAM_SIZE            0x7ff8
 122 #define TODC_TYPE_MK48T35_SW_FLAGS              0
 123 #define TODC_TYPE_MK48T35_YEAR                  0x7fff
 124 #define TODC_TYPE_MK48T35_MONTH                 0x7ffe
 125 #define TODC_TYPE_MK48T35_DOM                   0x7ffd  /* Day of Month */
 126 #define TODC_TYPE_MK48T35_DOW                   0x7ffc  /* Day of Week */
 127 #define TODC_TYPE_MK48T35_HOURS                 0x7ffb
 128 #define TODC_TYPE_MK48T35_MINUTES               0x7ffa
 129 #define TODC_TYPE_MK48T35_SECONDS               0x7ff9
 130 #define TODC_TYPE_MK48T35_CNTL_B                0x7ff9
 131 #define TODC_TYPE_MK48T35_CNTL_A                0x7ff8
 132 #define TODC_TYPE_MK48T35_WATCHDOG              0x0000
 133 #define TODC_TYPE_MK48T35_INTERRUPTS            0x0000
 134 #define TODC_TYPE_MK48T35_ALARM_DATE            0x0000
 135 #define TODC_TYPE_MK48T35_ALARM_HOUR            0x0000
 136 #define TODC_TYPE_MK48T35_ALARM_MINUTES         0x0000
 137 #define TODC_TYPE_MK48T35_ALARM_SECONDS         0x0000
 138 #define TODC_TYPE_MK48T35_CENTURY               0x0000
 139 #define TODC_TYPE_MK48T35_FLAGS                 0x0000
 140 #define TODC_TYPE_MK48T35_NVRAM_ADDR_REG        0
 141 #define TODC_TYPE_MK48T35_NVRAM_DATA_REG        0
 142
 143 #define TODC_TYPE_MK48T37_NVRAM_SIZE            0x7ff0
 144 #define TODC_TYPE_MK48T37_SW_FLAGS              0
 145 #define TODC_TYPE_MK48T37_YEAR                  0x7fff
 146 #define TODC_TYPE_MK48T37_MONTH                 0x7ffe
 147 #define TODC_TYPE_MK48T37_DOM                   0x7ffd  /* Day of Month */
 148 #define TODC_TYPE_MK48T37_DOW                   0x7ffc  /* Day of Week */
 149 #define TODC_TYPE_MK48T37_HOURS                 0x7ffb
 150 #define TODC_TYPE_MK48T37_MINUTES               0x7ffa
 151 #define TODC_TYPE_MK48T37_SECONDS               0x7ff9
 152 #define TODC_TYPE_MK48T37_CNTL_B                0x7ff9
 153 #define TODC_TYPE_MK48T37_CNTL_A                0x7ff8
 154 #define TODC_TYPE_MK48T37_WATCHDOG              0x7ff7
 155 #define TODC_TYPE_MK48T37_INTERRUPTS            0x7ff6
 156 #define TODC_TYPE_MK48T37_ALARM_DATE            0x7ff5
 157 #define TODC_TYPE_MK48T37_ALARM_HOUR            0x7ff4
 158 #define TODC_TYPE_MK48T37_ALARM_MINUTES         0x7ff3
 159 #define TODC_TYPE_MK48T37_ALARM_SECONDS         0x7ff2
 160 #define TODC_TYPE_MK48T37_CENTURY               0x7ff1
 161 #define TODC_TYPE_MK48T37_FLAGS                 0x7ff0
 162 #define TODC_TYPE_MK48T37_NVRAM_ADDR_REG        0
 163 #define TODC_TYPE_MK48T37_NVRAM_DATA_REG        0
 164
 165 #define TODC_TYPE_MK48T59_NVRAM_SIZE            0x1ff0
 166 #define TODC_TYPE_MK48T59_SW_FLAGS              0
 167 #define TODC_TYPE_MK48T59_YEAR                  0x1fff
 168 #define TODC_TYPE_MK48T59_MONTH                 0x1ffe
 169 #define TODC_TYPE_MK48T59_DOM                   0x1ffd  /* Day of Month */
 170 #define TODC_TYPE_MK48T59_DOW                   0x1ffc  /* Day of Week */
 171 #define TODC_TYPE_MK48T59_HOURS                 0x1ffb
 172 #define TODC_TYPE_MK48T59_MINUTES               0x1ffa
 173 #define TODC_TYPE_MK48T59_SECONDS               0x1ff9
 174 #define TODC_TYPE_MK48T59_CNTL_B                0x1ff9
 175 #define TODC_TYPE_MK48T59_CNTL_A                0x1ff8
 176 #define TODC_TYPE_MK48T59_WATCHDOG              0x1fff
 177 #define TODC_TYPE_MK48T59_INTERRUPTS            0x1fff
 178 #define TODC_TYPE_MK48T59_ALARM_DATE            0x1fff
 179 #define TODC_TYPE_MK48T59_ALARM_HOUR            0x1fff
 180 #define TODC_TYPE_MK48T59_ALARM_MINUTES         0x1fff
 181 #define TODC_TYPE_MK48T59_ALARM_SECONDS         0x1fff
 182 #define TODC_TYPE_MK48T59_CENTURY               0x1fff
 183 #define TODC_TYPE_MK48T59_FLAGS                 0x1fff
 184 #define TODC_TYPE_MK48T59_NVRAM_ADDR_REG        0
 185 #define TODC_TYPE_MK48T59_NVRAM_DATA_REG        0
 186
 187 #define TODC_TYPE_DS1501_NVRAM_SIZE     0x100
 188 #define TODC_TYPE_DS1501_SW_FLAGS       TODC_FLAG_2_LEVEL_NVRAM
 189 #define TODC_TYPE_DS1501_YEAR           (TODC_TYPE_DS1501_NVRAM_SIZE + 0x06)
 190 #define TODC_TYPE_DS1501_MONTH          (TODC_TYPE_DS1501_NVRAM_SIZE + 0x05)
 191 #define TODC_TYPE_DS1501_DOM            (TODC_TYPE_DS1501_NVRAM_SIZE + 0x04)
 192 #define TODC_TYPE_DS1501_DOW            (TODC_TYPE_DS1501_NVRAM_SIZE + 0x03)
 193 #define TODC_TYPE_DS1501_HOURS          (TODC_TYPE_DS1501_NVRAM_SIZE + 0x02)
 194 #define TODC_TYPE_DS1501_MINUTES        (TODC_TYPE_DS1501_NVRAM_SIZE + 0x01)
 195 #define TODC_TYPE_DS1501_SECONDS        (TODC_TYPE_DS1501_NVRAM_SIZE + 0x00)
 196 #define TODC_TYPE_DS1501_CNTL_B         (TODC_TYPE_DS1501_NVRAM_SIZE + 0x0f)
 197 #define TODC_TYPE_DS1501_CNTL_A         (TODC_TYPE_DS1501_NVRAM_SIZE + 0x0f)
 198 #define TODC_TYPE_DS1501_WATCHDOG       (TODC_TYPE_DS1501_NVRAM_SIZE + 0xff)
 199 #define TODC_TYPE_DS1501_INTERRUPTS     (TODC_TYPE_DS1501_NVRAM_SIZE + 0xff)
 200 #define TODC_TYPE_DS1501_ALARM_DATE     (TODC_TYPE_DS1501_NVRAM_SIZE + 0x0b)
 201 #define TODC_TYPE_DS1501_ALARM_HOUR     (TODC_TYPE_DS1501_NVRAM_SIZE + 0x0a)
 202 #define TODC_TYPE_DS1501_ALARM_MINUTES  (TODC_TYPE_DS1501_NVRAM_SIZE + 0x09)
 203 #define TODC_TYPE_DS1501_ALARM_SECONDS  (TODC_TYPE_DS1501_NVRAM_SIZE + 0x08)
 204 #define TODC_TYPE_DS1501_CENTURY        (TODC_TYPE_DS1501_NVRAM_SIZE + 0x07)
 205 #define TODC_TYPE_DS1501_FLAGS          (TODC_TYPE_DS1501_NVRAM_SIZE + 0xff)
 206 #define TODC_TYPE_DS1501_NVRAM_ADDR_REG 0x10
 207 #define TODC_TYPE_DS1501_NVRAM_DATA_REG 0x13
 208
 209 #define TODC_TYPE_DS1553_NVRAM_SIZE             0x1ff0
 210 #define TODC_TYPE_DS1553_SW_FLAGS               0
 211 #define TODC_TYPE_DS1553_YEAR                   0x1fff
 212 #define TODC_TYPE_DS1553_MONTH                  0x1ffe
 213 #define TODC_TYPE_DS1553_DOM                    0x1ffd  /* Day of Month */
 214 #define TODC_TYPE_DS1553_DOW                    0x1ffc  /* Day of Week */
 215 #define TODC_TYPE_DS1553_HOURS                  0x1ffb
 216 #define TODC_TYPE_DS1553_MINUTES                0x1ffa
 217 #define TODC_TYPE_DS1553_SECONDS                0x1ff9
 218 #define TODC_TYPE_DS1553_CNTL_B                 0x1ff9
 219 #define TODC_TYPE_DS1553_CNTL_A                 0x1ff8  /* control_a R/W regs */
 220 #define TODC_TYPE_DS1553_WATCHDOG               0x1ff7
 221 #define TODC_TYPE_DS1553_INTERRUPTS             0x1ff6
 222 #define TODC_TYPE_DS1553_ALARM_DATE             0x1ff5
 223 #define TODC_TYPE_DS1553_ALARM_HOUR             0x1ff4
 224 #define TODC_TYPE_DS1553_ALARM_MINUTES          0x1ff3
 225 #define TODC_TYPE_DS1553_ALARM_SECONDS          0x1ff2
 226 #define TODC_TYPE_DS1553_CENTURY                0x1ff8
 227 #define TODC_TYPE_DS1553_FLAGS                  0x1ff0
 228 #define TODC_TYPE_DS1553_NVRAM_ADDR_REG         0
 229 #define TODC_TYPE_DS1553_NVRAM_DATA_REG         0
 230
 231 #define TODC_TYPE_DS1557_NVRAM_SIZE             0x7fff0
 232 #define TODC_TYPE_DS1557_SW_FLAGS               0
 233 #define TODC_TYPE_DS1557_YEAR                   0x7ffff
 234 #define TODC_TYPE_DS1557_MONTH                  0x7fffe
 235 #define TODC_TYPE_DS1557_DOM                    0x7fffd /* Day of Month */
 236 #define TODC_TYPE_DS1557_DOW                    0x7fffc /* Day of Week */
 237 #define TODC_TYPE_DS1557_HOURS                  0x7fffb
 238 #define TODC_TYPE_DS1557_MINUTES                0x7fffa
 239 #define TODC_TYPE_DS1557_SECONDS                0x7fff9
 240 #define TODC_TYPE_DS1557_CNTL_B                 0x7fff9
 241 #define TODC_TYPE_DS1557_CNTL_A                 0x7fff8 /* control_a R/W regs */
 242 #define TODC_TYPE_DS1557_WATCHDOG               0x7fff7
 243 #define TODC_TYPE_DS1557_INTERRUPTS             0x7fff6
 244 #define TODC_TYPE_DS1557_ALARM_DATE             0x7fff5
 245 #define TODC_TYPE_DS1557_ALARM_HOUR             0x7fff4
 246 #define TODC_TYPE_DS1557_ALARM_MINUTES          0x7fff3
 247 #define TODC_TYPE_DS1557_ALARM_SECONDS          0x7fff2
 248 #define TODC_TYPE_DS1557_CENTURY                0x7fff8
 249 #define TODC_TYPE_DS1557_FLAGS                  0x7fff0
 250 #define TODC_TYPE_DS1557_NVRAM_ADDR_REG         0
 251 #define TODC_TYPE_DS1557_NVRAM_DATA_REG         0
 252
 253 #define TODC_TYPE_DS1643_NVRAM_SIZE             0x1ff8
 254 #define TODC_TYPE_DS1643_SW_FLAGS               0
 255 #define TODC_TYPE_DS1643_YEAR                   0x1fff
 256 #define TODC_TYPE_DS1643_MONTH                  0x1ffe
 257 #define TODC_TYPE_DS1643_DOM                    0x1ffd  /* Day of Month */
 258 #define TODC_TYPE_DS1643_DOW                    0x1ffc  /* Day of Week */
 259 #define TODC_TYPE_DS1643_HOURS                  0x1ffb
 260 #define TODC_TYPE_DS1643_MINUTES                0x1ffa
 261 #define TODC_TYPE_DS1643_SECONDS                0x1ff9
 262 #define TODC_TYPE_DS1643_CNTL_B                 0x1ff9
 263 #define TODC_TYPE_DS1643_CNTL_A                 0x1ff8  /* control_a R/W regs */
 264 #define TODC_TYPE_DS1643_WATCHDOG               0x1fff
 265 #define TODC_TYPE_DS1643_INTERRUPTS             0x1fff
 266 #define TODC_TYPE_DS1643_ALARM_DATE             0x1fff
 267 #define TODC_TYPE_DS1643_ALARM_HOUR             0x1fff
 268 #define TODC_TYPE_DS1643_ALARM_MINUTES          0x1fff
 269 #define TODC_TYPE_DS1643_ALARM_SECONDS          0x1fff
 270 #define TODC_TYPE_DS1643_CENTURY                0x1ff8
 271 #define TODC_TYPE_DS1643_FLAGS                  0x1fff
 272 #define TODC_TYPE_DS1643_NVRAM_ADDR_REG         0
 273 #define TODC_TYPE_DS1643_NVRAM_DATA_REG         0
 274
 275 #define TODC_TYPE_DS1693_NVRAM_SIZE             0 /* Not handled yet */
 276 #define TODC_TYPE_DS1693_SW_FLAGS               0
 277 #define TODC_TYPE_DS1693_YEAR                   0x09
 278 #define TODC_TYPE_DS1693_MONTH                  0x08
 279 #define TODC_TYPE_DS1693_DOM                    0x07    /* Day of Month */
 280 #define TODC_TYPE_DS1693_DOW                    0x06    /* Day of Week */
 281 #define TODC_TYPE_DS1693_HOURS                  0x04
 282 #define TODC_TYPE_DS1693_MINUTES                0x02
 283 #define TODC_TYPE_DS1693_SECONDS                0x00
 284 #define TODC_TYPE_DS1693_CNTL_B                 0x0b
 285 #define TODC_TYPE_DS1693_CNTL_A                 0x0a
 286 #define TODC_TYPE_DS1693_WATCHDOG               0xff
 287 #define TODC_TYPE_DS1693_INTERRUPTS             0xff
 288 #define TODC_TYPE_DS1693_ALARM_DATE             0x49
 289 #define TODC_TYPE_DS1693_ALARM_HOUR             0x05
 290 #define TODC_TYPE_DS1693_ALARM_MINUTES          0x03
 291 #define TODC_TYPE_DS1693_ALARM_SECONDS          0x01
 292 #define TODC_TYPE_DS1693_CENTURY                0x48
 293 #define TODC_TYPE_DS1693_FLAGS                  0xff
 294 #define TODC_TYPE_DS1693_NVRAM_ADDR_REG         0
 295 #define TODC_TYPE_DS1693_NVRAM_DATA_REG         0
 296
 297 #define TODC_TYPE_DS1743_NVRAM_SIZE             0x1ff8
 298 #define TODC_TYPE_DS1743_SW_FLAGS               0
 299 #define TODC_TYPE_DS1743_YEAR                   0x1fff
 300 #define TODC_TYPE_DS1743_MONTH                  0x1ffe
 301 #define TODC_TYPE_DS1743_DOM                    0x1ffd  /* Day of Month */
 302 #define TODC_TYPE_DS1743_DOW                    0x1ffc  /* Day of Week */
 303 #define TODC_TYPE_DS1743_HOURS                  0x1ffb
 304 #define TODC_TYPE_DS1743_MINUTES                0x1ffa
 305 #define TODC_TYPE_DS1743_SECONDS                0x1ff9
 306 #define TODC_TYPE_DS1743_CNTL_B                 0x1ff9
 307 #define TODC_TYPE_DS1743_CNTL_A                 0x1ff8  /* control_a R/W regs */
 308 #define TODC_TYPE_DS1743_WATCHDOG               0x1fff
 309 #define TODC_TYPE_DS1743_INTERRUPTS             0x1fff
 310 #define TODC_TYPE_DS1743_ALARM_DATE             0x1fff
 311 #define TODC_TYPE_DS1743_ALARM_HOUR             0x1fff
 312 #define TODC_TYPE_DS1743_ALARM_MINUTES          0x1fff
 313 #define TODC_TYPE_DS1743_ALARM_SECONDS          0x1fff
 314 #define TODC_TYPE_DS1743_CENTURY                0x1ff8
 315 #define TODC_TYPE_DS1743_FLAGS                  0x1fff
 316 #define TODC_TYPE_DS1743_NVRAM_ADDR_REG         0
 317 #define TODC_TYPE_DS1743_NVRAM_DATA_REG         0
 318
 319 #define TODC_TYPE_DS1746_NVRAM_SIZE             0x1fff8
 320 #define TODC_TYPE_DS1746_SW_FLAGS               0
 321 #define TODC_TYPE_DS1746_YEAR                   0x1ffff
 322 #define TODC_TYPE_DS1746_MONTH                  0x1fffe
 323 #define TODC_TYPE_DS1746_DOM                    0x1fffd /* Day of Month */
 324 #define TODC_TYPE_DS1746_DOW                    0x1fffc /* Day of Week */
 325 #define TODC_TYPE_DS1746_HOURS                  0x1fffb
 326 #define TODC_TYPE_DS1746_MINUTES                0x1fffa
 327 #define TODC_TYPE_DS1746_SECONDS                0x1fff9
 328 #define TODC_TYPE_DS1746_CNTL_B                 0x1fff9
 329 #define TODC_TYPE_DS1746_CNTL_A                 0x1fff8 /* control_a R/W regs */
 330 #define TODC_TYPE_DS1746_WATCHDOG               0x00000
 331 #define TODC_TYPE_DS1746_INTERRUPTS             0x00000
 332 #define TODC_TYPE_DS1746_ALARM_DATE             0x00000
 333 #define TODC_TYPE_DS1746_ALARM_HOUR             0x00000
 334 #define TODC_TYPE_DS1746_ALARM_MINUTES          0x00000
 335 #define TODC_TYPE_DS1746_ALARM_SECONDS          0x00000
 336 #define TODC_TYPE_DS1746_CENTURY                0x00000
 337 #define TODC_TYPE_DS1746_FLAGS                  0x00000
 338 #define TODC_TYPE_DS1746_NVRAM_ADDR_REG         0
 339 #define TODC_TYPE_DS1746_NVRAM_DATA_REG         0
 340
 341 #define TODC_TYPE_DS1747_NVRAM_SIZE             0x7fff8
 342 #define TODC_TYPE_DS1747_SW_FLAGS               0
 343 #define TODC_TYPE_DS1747_YEAR                   0x7ffff
 344 #define TODC_TYPE_DS1747_MONTH                  0x7fffe
 345 #define TODC_TYPE_DS1747_DOM                    0x7fffd /* Day of Month */
 346 #define TODC_TYPE_DS1747_DOW                    0x7fffc /* Day of Week */
 347 #define TODC_TYPE_DS1747_HOURS                  0x7fffb
 348 #define TODC_TYPE_DS1747_MINUTES                0x7fffa
 349 #define TODC_TYPE_DS1747_SECONDS                0x7fff9
 350 #define TODC_TYPE_DS1747_CNTL_B                 0x7fff9
 351 #define TODC_TYPE_DS1747_CNTL_A                 0x7fff8 /* control_a R/W regs */
 352 #define TODC_TYPE_DS1747_WATCHDOG               0x00000
 353 #define TODC_TYPE_DS1747_INTERRUPTS             0x00000
 354 #define TODC_TYPE_DS1747_ALARM_DATE             0x00000
 355 #define TODC_TYPE_DS1747_ALARM_HOUR             0x00000
 356 #define TODC_TYPE_DS1747_ALARM_MINUTES          0x00000
 357 #define TODC_TYPE_DS1747_ALARM_SECONDS          0x00000
 358 #define TODC_TYPE_DS1747_CENTURY                0x00000
 359 #define TODC_TYPE_DS1747_FLAGS                  0x00000
 360 #define TODC_TYPE_DS1747_NVRAM_ADDR_REG         0
 361 #define TODC_TYPE_DS1747_NVRAM_DATA_REG         0
 362
 363 #define TODC_TYPE_DS17285_NVRAM_SIZE            (0x1000-0x80) /* 4Kx8 NVRAM (minus RTC regs) */
 364 #define TODC_TYPE_DS17285_SW_FLAGS              TODC_FLAG_2_LEVEL_NVRAM
 365 #define TODC_TYPE_DS17285_SECONDS               (TODC_TYPE_DS17285_NVRAM_SIZE + 0x00)
 366 #define TODC_TYPE_DS17285_ALARM_SECONDS         (TODC_TYPE_DS17285_NVRAM_SIZE + 0x01)
 367 #define TODC_TYPE_DS17285_MINUTES               (TODC_TYPE_DS17285_NVRAM_SIZE + 0x02)
 368 #define TODC_TYPE_DS17285_ALARM_MINUTES         (TODC_TYPE_DS17285_NVRAM_SIZE + 0x03)
 369 #define TODC_TYPE_DS17285_HOURS                 (TODC_TYPE_DS17285_NVRAM_SIZE + 0x04)
 370 #define TODC_TYPE_DS17285_ALARM_HOUR            (TODC_TYPE_DS17285_NVRAM_SIZE + 0x05)
 371 #define TODC_TYPE_DS17285_DOW                   (TODC_TYPE_DS17285_NVRAM_SIZE + 0x06)
 372 #define TODC_TYPE_DS17285_DOM                   (TODC_TYPE_DS17285_NVRAM_SIZE + 0x07)
 373 #define TODC_TYPE_DS17285_MONTH                 (TODC_TYPE_DS17285_NVRAM_SIZE + 0x08)
 374 #define TODC_TYPE_DS17285_YEAR                  (TODC_TYPE_DS17285_NVRAM_SIZE + 0x09)
 375 #define TODC_TYPE_DS17285_CNTL_A                (TODC_TYPE_DS17285_NVRAM_SIZE + 0x0A)
 376 #define TODC_TYPE_DS17285_CNTL_B                (TODC_TYPE_DS17285_NVRAM_SIZE + 0x0B)
 377 #define TODC_TYPE_DS17285_CNTL_C                (TODC_TYPE_DS17285_NVRAM_SIZE + 0x0C)
 378 #define TODC_TYPE_DS17285_CNTL_D                (TODC_TYPE_DS17285_NVRAM_SIZE + 0x0D)
 379 #define TODC_TYPE_DS17285_WATCHDOG              0
 380 #define TODC_TYPE_DS17285_INTERRUPTS            0
 381 #define TODC_TYPE_DS17285_ALARM_DATE            0
 382 #define TODC_TYPE_DS17285_CENTURY               0
 383 #define TODC_TYPE_DS17285_FLAGS                 0
 384 #define TODC_TYPE_DS17285_NVRAM_ADDR_REG        0x50
 385 #define TODC_TYPE_DS17285_NVRAM_DATA_REG        0x53
 386
 387 #define TODC_TYPE_MC146818_NVRAM_SIZE           0       /* XXXX */
 388 #define TODC_TYPE_MC146818_SW_FLAGS             0
 389 #define TODC_TYPE_MC146818_YEAR                 0x09
 390 #define TODC_TYPE_MC146818_MONTH                0x08
 391 #define TODC_TYPE_MC146818_DOM                  0x07    /* Day of Month */
 392 #define TODC_TYPE_MC146818_DOW                  0x06    /* Day of Week */
 393 #define TODC_TYPE_MC146818_HOURS                0x04
 394 #define TODC_TYPE_MC146818_MINUTES              0x02
 395 #define TODC_TYPE_MC146818_SECONDS              0x00
 396 #define TODC_TYPE_MC146818_CNTL_B               0x0a
 397 #define TODC_TYPE_MC146818_CNTL_A               0x0b    /* control_a R/W regs */
 398 #define TODC_TYPE_MC146818_WATCHDOG             0
 399 #define TODC_TYPE_MC146818_INTERRUPTS           0x0c
 400 #define TODC_TYPE_MC146818_ALARM_DATE           0xff
 401 #define TODC_TYPE_MC146818_ALARM_HOUR           0x05
 402 #define TODC_TYPE_MC146818_ALARM_MINUTES        0x03
 403 #define TODC_TYPE_MC146818_ALARM_SECONDS        0x01
 404 #define TODC_TYPE_MC146818_CENTURY              0xff
 405 #define TODC_TYPE_MC146818_FLAGS                0xff
 406 #define TODC_TYPE_MC146818_NVRAM_ADDR_REG       0
 407 #define TODC_TYPE_MC146818_NVRAM_DATA_REG       0
 408
 409 #define TODC_TYPE_PC97307_NVRAM_SIZE            0       /* No NVRAM? */
 410 #define TODC_TYPE_PC97307_SW_FLAGS              0
 411 #define TODC_TYPE_PC97307_YEAR                  0x09
 412 #define TODC_TYPE_PC97307_MONTH                 0x08
 413 #define TODC_TYPE_PC97307_DOM                   0x07    /* Day of Month */
 414 #define TODC_TYPE_PC97307_DOW                   0x06    /* Day of Week */
 415 #define TODC_TYPE_PC97307_HOURS                 0x04
 416 #define TODC_TYPE_PC97307_MINUTES               0x02
 417 #define TODC_TYPE_PC97307_SECONDS               0x00
 418 #define TODC_TYPE_PC97307_CNTL_B                0x0a
 419 #define TODC_TYPE_PC97307_CNTL_A                0x0b    /* control_a R/W regs */
 420 #define TODC_TYPE_PC97307_WATCHDOG              0x0c
 421 #define TODC_TYPE_PC97307_INTERRUPTS            0x0d
 422 #define TODC_TYPE_PC97307_ALARM_DATE            0xff
 423 #define TODC_TYPE_PC97307_ALARM_HOUR            0x05
 424 #define TODC_TYPE_PC97307_ALARM_MINUTES         0x03
 425 #define TODC_TYPE_PC97307_ALARM_SECONDS         0x01
 426 #define TODC_TYPE_PC97307_CENTURY               0xff
 427 #define TODC_TYPE_PC97307_FLAGS                 0xff
 428 #define TODC_TYPE_PC97307_NVRAM_ADDR_REG        0
 429 #define TODC_TYPE_PC97307_NVRAM_DATA_REG        0
 430
 431 /*
 432  * Define macros to allocate and init the todc_info_t table that will
 433  * be used by the todc_time.c routines.
 434  */
 435 #define TODC_ALLOC()                                                    \
 436         static todc_info_t todc_info_alloc;                             \
 437         todc_info_t *todc_info = &todc_info_alloc;
 438
 439 #define TODC_INIT(clock_type, as0, as1, data, bits) {                   \
 440         todc_info->rtc_type = clock_type;                               \
 441                                                                         \
 442         todc_info->nvram_as0 = (unsigned int)(as0);                     \
 443         todc_info->nvram_as1 = (unsigned int)(as1);                     \
 444         todc_info->nvram_data = (unsigned int)(data);                   \
 445                                                                         \
 446         todc_info->as0_bits = (bits);                                   \
 447                                                                         \
 448         todc_info->nvram_size = clock_type ##_NVRAM_SIZE;               \
 449         todc_info->sw_flags = clock_type ##_SW_FLAGS;                   \
 450                                                                         \
 451         todc_info->year = clock_type ##_YEAR;                           \
 452         todc_info->month = clock_type ##_MONTH;                         \
 453         todc_info->day_of_month = clock_type ##_DOM;                    \
 454         todc_info->day_of_week = clock_type ##_DOW;                     \
 455         todc_info->hours = clock_type ##_HOURS;                         \
 456         todc_info->minutes = clock_type ##_MINUTES;                     \
 457         todc_info->seconds = clock_type ##_SECONDS;                     \
 458         todc_info->control_b = clock_type ##_CNTL_B;                    \
 459         todc_info->control_a = clock_type ##_CNTL_A;                    \
 460         todc_info->watchdog = clock_type ##_WATCHDOG;                   \
 461         todc_info->interrupts = clock_type ##_INTERRUPTS;               \
 462         todc_info->alarm_date = clock_type ##_ALARM_DATE;               \
 463         todc_info->alarm_hour = clock_type ##_ALARM_HOUR;               \
 464         todc_info->alarm_minutes = clock_type ##_ALARM_MINUTES;         \
 465         todc_info->alarm_seconds = clock_type ##_ALARM_SECONDS;         \
 466         todc_info->century = clock_type ##_CENTURY;                     \
 467         todc_info->flags = clock_type ##_FLAGS;                         \
 468                                                                         \
 469         todc_info->nvram_addr_reg = clock_type ##_NVRAM_ADDR_REG;       \
 470         todc_info->nvram_data_reg = clock_type ##_NVRAM_DATA_REG;       \
 471 }
 472
 473 extern todc_info_t *todc_info;
 474
 475 unsigned char todc_direct_read_val(int addr);
 476 void todc_direct_write_val(int addr, unsigned char val);
 477 unsigned char todc_m48txx_read_val(int addr);
 478 void todc_m48txx_write_val(int addr, unsigned char val);
 479 unsigned char todc_mc146818_read_val(int addr);
 480 void todc_mc146818_write_val(int addr, unsigned char val);
 481
 482 long todc_time_init(void);
 483 void todc_get_rtc_time(struct rtc_time *);
 484 int todc_set_rtc_time(struct rtc_time *);
 485 void todc_calibrate_decr(void);
 486
 487 #endif                          /* __PPC_KERNEL_TODC_H */