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Linux kernel mirror (for testing)
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linux
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 * 2001 (c) MontaVista, Software, Inc. This file is licensed under
11 * the terms of the GNU General Public License version 2. This program
12 * is licensed "as is" without any warranty of any kind, whether express
13 * or implied.
14 */
15
16/*
17 * Support for the M48T37/M48T59/.../mc146818 Real Time Clock chips.
18 * Purpose is to make one generic file that handles all of these chips instead
19 * of every platform implementing the same code over & over again.
20 */
21
22#ifndef __PPC_KERNEL_TODC_H
23#define __PPC_KERNEL_TODC_H
24
25typedef struct {
26 uint rtc_type; /* your particular chip */
27
28 /*
29 * Following are the addresses of the AS0, AS1, and DATA registers
30 * of these chips. Note that these are board-specific.
31 */
32 unsigned int nvram_as0;
33 unsigned int nvram_as1;
34 unsigned int nvram_data;
35
36 /*
37 * Define bits to stop external set of regs from changing so
38 * the chip can be read/written reliably.
39 */
40 unsigned char enable_read;
41 unsigned char enable_write;
42
43 /*
44 * Following is the number of AS0 address bits. This is normally
45 * 8 but some bad hardware routes address lines incorrectly.
46 */
47 int as0_bits;
48
49 int nvram_size; /* Size of NVRAM on chip */
50 int sw_flags; /* Software control flags */
51
52 /* Following are the register offsets for the particular chip */
53 int year;
54 int month;
55 int day_of_month;
56 int day_of_week;
57 int hours;
58 int minutes;
59 int seconds;
60 int control_b;
61 int control_a;
62 int watchdog;
63 int interrupts;
64 int alarm_date;
65 int alarm_hour;
66 int alarm_minutes;
67 int alarm_seconds;
68 int century;
69 int flags;
70
71 /*
72 * Some RTC chips have their NVRAM buried behind a addr/data pair of
73 * regs on the first level/clock registers. The following fields
74 * are the addresses for those addr/data regs.
75 */
76 int nvram_addr_reg;
77 int nvram_data_reg;
78} todc_info_t;
79
80/*
81 * Define the types of TODC/RTC variants that are supported in
82 * arch/ppc/kernel/todc_time.c
83 * Make a new one of these for any chip somehow differs from what's already
84 * defined. That way, if you ever need to put in code to touch those
85 * bits/registers in todc_time.c, you can put it inside an
86 * 'if (todc_info->rtc_type == TODC_TYPE_XXX)' so you won't break
87 * anyone else.
88 */
89#define TODC_TYPE_MK48T35 1
90#define TODC_TYPE_MK48T37 2
91#define TODC_TYPE_MK48T59 3
92#define TODC_TYPE_DS1693 4 /* Dallas DS1693 RTC */
93#define TODC_TYPE_DS1743 5 /* Dallas DS1743 RTC */
94#define TODC_TYPE_DS1746 6 /* Dallas DS1746 RTC */
95#define TODC_TYPE_DS1747 7 /* Dallas DS1747 RTC */
96#define TODC_TYPE_DS1501 8 /* Dallas DS1501 RTC */
97#define TODC_TYPE_DS1643 9 /* Dallas DS1643 RTC */
98#define TODC_TYPE_PC97307 10 /* PC97307 internal RTC */
99#define TODC_TYPE_DS1557 11 /* Dallas DS1557 RTC */
100#define TODC_TYPE_DS17285 12 /* Dallas DS17285 RTC */
101#define TODC_TYPE_DS1553 13 /* Dallas DS1553 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_DS1553_NVRAM_SIZE 0x1ff0
213#define TODC_TYPE_DS1553_SW_FLAGS 0
214#define TODC_TYPE_DS1553_YEAR 0x1fff
215#define TODC_TYPE_DS1553_MONTH 0x1ffe
216#define TODC_TYPE_DS1553_DOM 0x1ffd /* Day of Month */
217#define TODC_TYPE_DS1553_DOW 0x1ffc /* Day of Week */
218#define TODC_TYPE_DS1553_HOURS 0x1ffb
219#define TODC_TYPE_DS1553_MINUTES 0x1ffa
220#define TODC_TYPE_DS1553_SECONDS 0x1ff9
221#define TODC_TYPE_DS1553_CNTL_B 0x1ff9
222#define TODC_TYPE_DS1553_CNTL_A 0x1ff8 /* control_a R/W regs */
223#define TODC_TYPE_DS1553_WATCHDOG 0x1ff7
224#define TODC_TYPE_DS1553_INTERRUPTS 0x1ff6
225#define TODC_TYPE_DS1553_ALARM_DATE 0x1ff5
226#define TODC_TYPE_DS1553_ALARM_HOUR 0x1ff4
227#define TODC_TYPE_DS1553_ALARM_MINUTES 0x1ff3
228#define TODC_TYPE_DS1553_ALARM_SECONDS 0x1ff2
229#define TODC_TYPE_DS1553_CENTURY 0x1ff8
230#define TODC_TYPE_DS1553_FLAGS 0x1ff0
231#define TODC_TYPE_DS1553_NVRAM_ADDR_REG 0
232#define TODC_TYPE_DS1553_NVRAM_DATA_REG 0
233
234#define TODC_TYPE_DS1557_NVRAM_SIZE 0x7fff0
235#define TODC_TYPE_DS1557_SW_FLAGS 0
236#define TODC_TYPE_DS1557_YEAR 0x7ffff
237#define TODC_TYPE_DS1557_MONTH 0x7fffe
238#define TODC_TYPE_DS1557_DOM 0x7fffd /* Day of Month */
239#define TODC_TYPE_DS1557_DOW 0x7fffc /* Day of Week */
240#define TODC_TYPE_DS1557_HOURS 0x7fffb
241#define TODC_TYPE_DS1557_MINUTES 0x7fffa
242#define TODC_TYPE_DS1557_SECONDS 0x7fff9
243#define TODC_TYPE_DS1557_CNTL_B 0x7fff9
244#define TODC_TYPE_DS1557_CNTL_A 0x7fff8 /* control_a R/W regs */
245#define TODC_TYPE_DS1557_WATCHDOG 0x7fff7
246#define TODC_TYPE_DS1557_INTERRUPTS 0x7fff6
247#define TODC_TYPE_DS1557_ALARM_DATE 0x7fff5
248#define TODC_TYPE_DS1557_ALARM_HOUR 0x7fff4
249#define TODC_TYPE_DS1557_ALARM_MINUTES 0x7fff3
250#define TODC_TYPE_DS1557_ALARM_SECONDS 0x7fff2
251#define TODC_TYPE_DS1557_CENTURY 0x7fff8
252#define TODC_TYPE_DS1557_FLAGS 0x7fff0
253#define TODC_TYPE_DS1557_NVRAM_ADDR_REG 0
254#define TODC_TYPE_DS1557_NVRAM_DATA_REG 0
255
256#define TODC_TYPE_DS1643_NVRAM_SIZE 0x1ff8
257#define TODC_TYPE_DS1643_SW_FLAGS 0
258#define TODC_TYPE_DS1643_YEAR 0x1fff
259#define TODC_TYPE_DS1643_MONTH 0x1ffe
260#define TODC_TYPE_DS1643_DOM 0x1ffd /* Day of Month */
261#define TODC_TYPE_DS1643_DOW 0x1ffc /* Day of Week */
262#define TODC_TYPE_DS1643_HOURS 0x1ffb
263#define TODC_TYPE_DS1643_MINUTES 0x1ffa
264#define TODC_TYPE_DS1643_SECONDS 0x1ff9
265#define TODC_TYPE_DS1643_CNTL_B 0x1ff9
266#define TODC_TYPE_DS1643_CNTL_A 0x1ff8 /* control_a R/W regs */
267#define TODC_TYPE_DS1643_WATCHDOG 0x1fff
268#define TODC_TYPE_DS1643_INTERRUPTS 0x1fff
269#define TODC_TYPE_DS1643_ALARM_DATE 0x1fff
270#define TODC_TYPE_DS1643_ALARM_HOUR 0x1fff
271#define TODC_TYPE_DS1643_ALARM_MINUTES 0x1fff
272#define TODC_TYPE_DS1643_ALARM_SECONDS 0x1fff
273#define TODC_TYPE_DS1643_CENTURY 0x1ff8
274#define TODC_TYPE_DS1643_FLAGS 0x1fff
275#define TODC_TYPE_DS1643_NVRAM_ADDR_REG 0
276#define TODC_TYPE_DS1643_NVRAM_DATA_REG 0
277
278#define TODC_TYPE_DS1693_NVRAM_SIZE 0 /* Not handled yet */
279#define TODC_TYPE_DS1693_SW_FLAGS 0
280#define TODC_TYPE_DS1693_YEAR 0x09
281#define TODC_TYPE_DS1693_MONTH 0x08
282#define TODC_TYPE_DS1693_DOM 0x07 /* Day of Month */
283#define TODC_TYPE_DS1693_DOW 0x06 /* Day of Week */
284#define TODC_TYPE_DS1693_HOURS 0x04
285#define TODC_TYPE_DS1693_MINUTES 0x02
286#define TODC_TYPE_DS1693_SECONDS 0x00
287#define TODC_TYPE_DS1693_CNTL_B 0x0b
288#define TODC_TYPE_DS1693_CNTL_A 0x0a
289#define TODC_TYPE_DS1693_WATCHDOG 0xff
290#define TODC_TYPE_DS1693_INTERRUPTS 0xff
291#define TODC_TYPE_DS1693_ALARM_DATE 0x49
292#define TODC_TYPE_DS1693_ALARM_HOUR 0x05
293#define TODC_TYPE_DS1693_ALARM_MINUTES 0x03
294#define TODC_TYPE_DS1693_ALARM_SECONDS 0x01
295#define TODC_TYPE_DS1693_CENTURY 0x48
296#define TODC_TYPE_DS1693_FLAGS 0xff
297#define TODC_TYPE_DS1693_NVRAM_ADDR_REG 0
298#define TODC_TYPE_DS1693_NVRAM_DATA_REG 0
299
300#define TODC_TYPE_DS1743_NVRAM_SIZE 0x1ff8
301#define TODC_TYPE_DS1743_SW_FLAGS 0
302#define TODC_TYPE_DS1743_YEAR 0x1fff
303#define TODC_TYPE_DS1743_MONTH 0x1ffe
304#define TODC_TYPE_DS1743_DOM 0x1ffd /* Day of Month */
305#define TODC_TYPE_DS1743_DOW 0x1ffc /* Day of Week */
306#define TODC_TYPE_DS1743_HOURS 0x1ffb
307#define TODC_TYPE_DS1743_MINUTES 0x1ffa
308#define TODC_TYPE_DS1743_SECONDS 0x1ff9
309#define TODC_TYPE_DS1743_CNTL_B 0x1ff9
310#define TODC_TYPE_DS1743_CNTL_A 0x1ff8 /* control_a R/W regs */
311#define TODC_TYPE_DS1743_WATCHDOG 0x1fff
312#define TODC_TYPE_DS1743_INTERRUPTS 0x1fff
313#define TODC_TYPE_DS1743_ALARM_DATE 0x1fff
314#define TODC_TYPE_DS1743_ALARM_HOUR 0x1fff
315#define TODC_TYPE_DS1743_ALARM_MINUTES 0x1fff
316#define TODC_TYPE_DS1743_ALARM_SECONDS 0x1fff
317#define TODC_TYPE_DS1743_CENTURY 0x1ff8
318#define TODC_TYPE_DS1743_FLAGS 0x1fff
319#define TODC_TYPE_DS1743_NVRAM_ADDR_REG 0
320#define TODC_TYPE_DS1743_NVRAM_DATA_REG 0
321
322#define TODC_TYPE_DS1746_NVRAM_SIZE 0x1fff8
323#define TODC_TYPE_DS1746_SW_FLAGS 0
324#define TODC_TYPE_DS1746_YEAR 0x1ffff
325#define TODC_TYPE_DS1746_MONTH 0x1fffe
326#define TODC_TYPE_DS1746_DOM 0x1fffd /* Day of Month */
327#define TODC_TYPE_DS1746_DOW 0x1fffc /* Day of Week */
328#define TODC_TYPE_DS1746_HOURS 0x1fffb
329#define TODC_TYPE_DS1746_MINUTES 0x1fffa
330#define TODC_TYPE_DS1746_SECONDS 0x1fff9
331#define TODC_TYPE_DS1746_CNTL_B 0x1fff9
332#define TODC_TYPE_DS1746_CNTL_A 0x1fff8 /* control_a R/W regs */
333#define TODC_TYPE_DS1746_WATCHDOG 0x00000
334#define TODC_TYPE_DS1746_INTERRUPTS 0x00000
335#define TODC_TYPE_DS1746_ALARM_DATE 0x00000
336#define TODC_TYPE_DS1746_ALARM_HOUR 0x00000
337#define TODC_TYPE_DS1746_ALARM_MINUTES 0x00000
338#define TODC_TYPE_DS1746_ALARM_SECONDS 0x00000
339#define TODC_TYPE_DS1746_CENTURY 0x00000
340#define TODC_TYPE_DS1746_FLAGS 0x00000
341#define TODC_TYPE_DS1746_NVRAM_ADDR_REG 0
342#define TODC_TYPE_DS1746_NVRAM_DATA_REG 0
343
344#define TODC_TYPE_DS1747_NVRAM_SIZE 0x7fff8
345#define TODC_TYPE_DS1747_SW_FLAGS 0
346#define TODC_TYPE_DS1747_YEAR 0x7ffff
347#define TODC_TYPE_DS1747_MONTH 0x7fffe
348#define TODC_TYPE_DS1747_DOM 0x7fffd /* Day of Month */
349#define TODC_TYPE_DS1747_DOW 0x7fffc /* Day of Week */
350#define TODC_TYPE_DS1747_HOURS 0x7fffb
351#define TODC_TYPE_DS1747_MINUTES 0x7fffa
352#define TODC_TYPE_DS1747_SECONDS 0x7fff9
353#define TODC_TYPE_DS1747_CNTL_B 0x7fff9
354#define TODC_TYPE_DS1747_CNTL_A 0x7fff8 /* control_a R/W regs */
355#define TODC_TYPE_DS1747_WATCHDOG 0x00000
356#define TODC_TYPE_DS1747_INTERRUPTS 0x00000
357#define TODC_TYPE_DS1747_ALARM_DATE 0x00000
358#define TODC_TYPE_DS1747_ALARM_HOUR 0x00000
359#define TODC_TYPE_DS1747_ALARM_MINUTES 0x00000
360#define TODC_TYPE_DS1747_ALARM_SECONDS 0x00000
361#define TODC_TYPE_DS1747_CENTURY 0x00000
362#define TODC_TYPE_DS1747_FLAGS 0x00000
363#define TODC_TYPE_DS1747_NVRAM_ADDR_REG 0
364#define TODC_TYPE_DS1747_NVRAM_DATA_REG 0
365
366#define TODC_TYPE_DS17285_NVRAM_SIZE (0x1000-0x80) /* 4Kx8 NVRAM (minus RTC regs) */
367#define TODC_TYPE_DS17285_SW_FLAGS TODC_FLAG_2_LEVEL_NVRAM
368#define TODC_TYPE_DS17285_SECONDS (TODC_TYPE_DS17285_NVRAM_SIZE + 0x00)
369#define TODC_TYPE_DS17285_ALARM_SECONDS (TODC_TYPE_DS17285_NVRAM_SIZE + 0x01)
370#define TODC_TYPE_DS17285_MINUTES (TODC_TYPE_DS17285_NVRAM_SIZE + 0x02)
371#define TODC_TYPE_DS17285_ALARM_MINUTES (TODC_TYPE_DS17285_NVRAM_SIZE + 0x03)
372#define TODC_TYPE_DS17285_HOURS (TODC_TYPE_DS17285_NVRAM_SIZE + 0x04)
373#define TODC_TYPE_DS17285_ALARM_HOUR (TODC_TYPE_DS17285_NVRAM_SIZE + 0x05)
374#define TODC_TYPE_DS17285_DOW (TODC_TYPE_DS17285_NVRAM_SIZE + 0x06)
375#define TODC_TYPE_DS17285_DOM (TODC_TYPE_DS17285_NVRAM_SIZE + 0x07)
376#define TODC_TYPE_DS17285_MONTH (TODC_TYPE_DS17285_NVRAM_SIZE + 0x08)
377#define TODC_TYPE_DS17285_YEAR (TODC_TYPE_DS17285_NVRAM_SIZE + 0x09)
378#define TODC_TYPE_DS17285_CNTL_A (TODC_TYPE_DS17285_NVRAM_SIZE + 0x0A)
379#define TODC_TYPE_DS17285_CNTL_B (TODC_TYPE_DS17285_NVRAM_SIZE + 0x0B)
380#define TODC_TYPE_DS17285_CNTL_C (TODC_TYPE_DS17285_NVRAM_SIZE + 0x0C)
381#define TODC_TYPE_DS17285_CNTL_D (TODC_TYPE_DS17285_NVRAM_SIZE + 0x0D)
382#define TODC_TYPE_DS17285_WATCHDOG 0
383#define TODC_TYPE_DS17285_INTERRUPTS 0
384#define TODC_TYPE_DS17285_ALARM_DATE 0
385#define TODC_TYPE_DS17285_CENTURY 0
386#define TODC_TYPE_DS17285_FLAGS 0
387#define TODC_TYPE_DS17285_NVRAM_ADDR_REG 0x50
388#define TODC_TYPE_DS17285_NVRAM_DATA_REG 0x53
389
390#define TODC_TYPE_MC146818_NVRAM_SIZE 0 /* XXXX */
391#define TODC_TYPE_MC146818_SW_FLAGS 0
392#define TODC_TYPE_MC146818_YEAR 0x09
393#define TODC_TYPE_MC146818_MONTH 0x08
394#define TODC_TYPE_MC146818_DOM 0x07 /* Day of Month */
395#define TODC_TYPE_MC146818_DOW 0x06 /* Day of Week */
396#define TODC_TYPE_MC146818_HOURS 0x04
397#define TODC_TYPE_MC146818_MINUTES 0x02
398#define TODC_TYPE_MC146818_SECONDS 0x00
399#define TODC_TYPE_MC146818_CNTL_B 0x0a
400#define TODC_TYPE_MC146818_CNTL_A 0x0b /* control_a R/W regs */
401#define TODC_TYPE_MC146818_WATCHDOG 0
402#define TODC_TYPE_MC146818_INTERRUPTS 0x0c
403#define TODC_TYPE_MC146818_ALARM_DATE 0xff
404#define TODC_TYPE_MC146818_ALARM_HOUR 0x05
405#define TODC_TYPE_MC146818_ALARM_MINUTES 0x03
406#define TODC_TYPE_MC146818_ALARM_SECONDS 0x01
407#define TODC_TYPE_MC146818_CENTURY 0xff
408#define TODC_TYPE_MC146818_FLAGS 0xff
409#define TODC_TYPE_MC146818_NVRAM_ADDR_REG 0
410#define TODC_TYPE_MC146818_NVRAM_DATA_REG 0
411
412#define TODC_TYPE_PC97307_NVRAM_SIZE 0 /* No NVRAM? */
413#define TODC_TYPE_PC97307_SW_FLAGS 0
414#define TODC_TYPE_PC97307_YEAR 0x09
415#define TODC_TYPE_PC97307_MONTH 0x08
416#define TODC_TYPE_PC97307_DOM 0x07 /* Day of Month */
417#define TODC_TYPE_PC97307_DOW 0x06 /* Day of Week */
418#define TODC_TYPE_PC97307_HOURS 0x04
419#define TODC_TYPE_PC97307_MINUTES 0x02
420#define TODC_TYPE_PC97307_SECONDS 0x00
421#define TODC_TYPE_PC97307_CNTL_B 0x0a
422#define TODC_TYPE_PC97307_CNTL_A 0x0b /* control_a R/W regs */
423#define TODC_TYPE_PC97307_WATCHDOG 0x0c
424#define TODC_TYPE_PC97307_INTERRUPTS 0x0d
425#define TODC_TYPE_PC97307_ALARM_DATE 0xff
426#define TODC_TYPE_PC97307_ALARM_HOUR 0x05
427#define TODC_TYPE_PC97307_ALARM_MINUTES 0x03
428#define TODC_TYPE_PC97307_ALARM_SECONDS 0x01
429#define TODC_TYPE_PC97307_CENTURY 0xff
430#define TODC_TYPE_PC97307_FLAGS 0xff
431#define TODC_TYPE_PC97307_NVRAM_ADDR_REG 0
432#define TODC_TYPE_PC97307_NVRAM_DATA_REG 0
433
434/*
435 * Define macros to allocate and init the todc_info_t table that will
436 * be used by the todc_time.c routines.
437 */
438#define TODC_ALLOC() \
439 static todc_info_t todc_info_alloc; \
440 todc_info_t *todc_info = &todc_info_alloc;
441
442#define TODC_INIT(clock_type, as0, as1, data, bits) { \
443 todc_info->rtc_type = clock_type; \
444 \
445 todc_info->nvram_as0 = (unsigned int)(as0); \
446 todc_info->nvram_as1 = (unsigned int)(as1); \
447 todc_info->nvram_data = (unsigned int)(data); \
448 \
449 todc_info->as0_bits = (bits); \
450 \
451 todc_info->nvram_size = clock_type ##_NVRAM_SIZE; \
452 todc_info->sw_flags = clock_type ##_SW_FLAGS; \
453 \
454 todc_info->year = clock_type ##_YEAR; \
455 todc_info->month = clock_type ##_MONTH; \
456 todc_info->day_of_month = clock_type ##_DOM; \
457 todc_info->day_of_week = clock_type ##_DOW; \
458 todc_info->hours = clock_type ##_HOURS; \
459 todc_info->minutes = clock_type ##_MINUTES; \
460 todc_info->seconds = clock_type ##_SECONDS; \
461 todc_info->control_b = clock_type ##_CNTL_B; \
462 todc_info->control_a = clock_type ##_CNTL_A; \
463 todc_info->watchdog = clock_type ##_WATCHDOG; \
464 todc_info->interrupts = clock_type ##_INTERRUPTS; \
465 todc_info->alarm_date = clock_type ##_ALARM_DATE; \
466 todc_info->alarm_hour = clock_type ##_ALARM_HOUR; \
467 todc_info->alarm_minutes = clock_type ##_ALARM_MINUTES; \
468 todc_info->alarm_seconds = clock_type ##_ALARM_SECONDS; \
469 todc_info->century = clock_type ##_CENTURY; \
470 todc_info->flags = clock_type ##_FLAGS; \
471 \
472 todc_info->nvram_addr_reg = clock_type ##_NVRAM_ADDR_REG; \
473 todc_info->nvram_data_reg = clock_type ##_NVRAM_DATA_REG; \
474}
475
476extern todc_info_t *todc_info;
477
478unsigned char todc_direct_read_val(int addr);
479void todc_direct_write_val(int addr, unsigned char val);
480unsigned char todc_m48txx_read_val(int addr);
481void todc_m48txx_write_val(int addr, unsigned char val);
482unsigned char todc_mc146818_read_val(int addr);
483void todc_mc146818_write_val(int addr, unsigned char val);
484
485long todc_time_init(void);
486unsigned long todc_get_rtc_time(void);
487int todc_set_rtc_time(unsigned long nowtime);
488void todc_calibrate_decr(void);
489
490#endif /* __PPC_KERNEL_TODC_H */