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authorMark A. Greer <mgreer@mvista.com>2006-06-28 17:13:20 -0400
committerPaul Mackerras <paulus@samba.org>2006-06-29 02:22:46 -0400
commitc220153654ede57b41900159eb8d1f6029d85642 (patch)
tree3285d535ec99aa9e96f97cec53bd88344bc6cb0e
parent16e9f994442b599987ce5dd4a5ebe50865e6573d (diff)
[POWERPC] todc: add support for Time-Of-Day-Clock
This is a resubmit with a proper subject and with all comments addressed. Applies cleanly to powerpc.git 649e85797259162f7fdc696420e7492f20226f2d Mark -- The todc code from arch/ppc supports many todc/rtc chips and is needed in arch/powerpc. This patch adds the todc code to arch/powerpc. Signed-off-by: Mark A. Greer <mgreer@mvista.com> -- arch/powerpc/Kconfig | 7 arch/powerpc/sysdev/Makefile | 1 arch/powerpc/sysdev/todc.c | 392 ++++++++++++++++++++++++++++++++++ include/asm-powerpc/todc.h | 487 +++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 887 insertions(+) -- Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat
-rw-r--r--arch/powerpc/Kconfig7
-rw-r--r--arch/powerpc/sysdev/Makefile1
-rw-r--r--arch/powerpc/sysdev/todc.c392
-rw-r--r--include/asm-powerpc/todc.h487
4 files changed, 887 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 0b5e225c2d51..e898da2381aa 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -563,6 +563,13 @@ config TAU_AVERAGE
563 /proc/cpuinfo. 563 /proc/cpuinfo.
564 564
565 If in doubt, say N here. 565 If in doubt, say N here.
566
567config PPC_TODC
568 depends on EMBEDDED6xx
569 bool "Generic Time-of-day Clock (TODC) support"
570 ---help---
571 This adds support for many TODC/RTC chips.
572
566endmenu 573endmenu
567 574
568source arch/powerpc/platforms/embedded6xx/Kconfig 575source arch/powerpc/platforms/embedded6xx/Kconfig
diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile
index 63e81e74b45e..054bd8b41ef5 100644
--- a/arch/powerpc/sysdev/Makefile
+++ b/arch/powerpc/sysdev/Makefile
@@ -12,4 +12,5 @@ obj-$(CONFIG_U3_DART) += dart_iommu.o
12obj-$(CONFIG_MMIO_NVRAM) += mmio_nvram.o 12obj-$(CONFIG_MMIO_NVRAM) += mmio_nvram.o
13obj-$(CONFIG_PPC_83xx) += ipic.o 13obj-$(CONFIG_PPC_83xx) += ipic.o
14obj-$(CONFIG_FSL_SOC) += fsl_soc.o 14obj-$(CONFIG_FSL_SOC) += fsl_soc.o
15obj-$(CONFIG_PPC_TODC) += todc.o
15obj-$(CONFIG_TSI108_BRIDGE) += tsi108_pci.o tsi108_dev.o 16obj-$(CONFIG_TSI108_BRIDGE) += tsi108_pci.o tsi108_dev.o
diff --git a/arch/powerpc/sysdev/todc.c b/arch/powerpc/sysdev/todc.c
new file mode 100644
index 000000000000..0a65980efb50
--- /dev/null
+++ b/arch/powerpc/sysdev/todc.c
@@ -0,0 +1,392 @@
1/*
2 * Time of Day Clock support for the M48T35, M48T37, M48T59, and MC146818
3 * Real Time Clocks/Timekeepers.
4 *
5 * Author: Mark A. Greer <mgreer@mvista.com>
6 *
7 * 2001-2004 (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#include <linux/errno.h>
13#include <linux/init.h>
14#include <linux/kernel.h>
15#include <linux/time.h>
16#include <linux/timex.h>
17#include <linux/bcd.h>
18#include <linux/mc146818rtc.h>
19
20#include <asm/machdep.h>
21#include <asm/io.h>
22#include <asm/time.h>
23#include <asm/todc.h>
24
25/*
26 * Depending on the hardware on your board and your board design, the
27 * RTC/NVRAM may be accessed either directly (like normal memory) or via
28 * address/data registers. If your board uses the direct method, set
29 * 'nvram_data' to the base address of your nvram and leave 'nvram_as0' and
30 * 'nvram_as1' NULL. If your board uses address/data regs to access nvram,
31 * set 'nvram_as0' to the address of the lower byte, set 'nvram_as1' to the
32 * address of the upper byte (leave NULL if using mc146818), and set
33 * 'nvram_data' to the address of the 8-bit data register.
34 *
35 * Note: Even though the documentation for the various RTC chips say that it
36 * take up to a second before it starts updating once the 'R' bit is
37 * cleared, they always seem to update even though we bang on it many
38 * times a second. This is true, except for the Dallas Semi 1746/1747
39 * (possibly others). Those chips seem to have a real problem whenever
40 * we set the 'R' bit before reading them, they basically stop counting.
41 * --MAG
42 */
43
44/*
45 * 'todc_info' should be initialized in your *_setup.c file to
46 * point to a fully initialized 'todc_info_t' structure.
47 * This structure holds all the register offsets for your particular
48 * TODC/RTC chip.
49 * TODC_ALLOC()/TODC_INIT() will allocate and initialize this table for you.
50 */
51
52#ifdef RTC_FREQ_SELECT
53#undef RTC_FREQ_SELECT
54#define RTC_FREQ_SELECT control_b /* Register A */
55#endif
56
57#ifdef RTC_CONTROL
58#undef RTC_CONTROL
59#define RTC_CONTROL control_a /* Register B */
60#endif
61
62#ifdef RTC_INTR_FLAGS
63#undef RTC_INTR_FLAGS
64#define RTC_INTR_FLAGS watchdog /* Register C */
65#endif
66
67#ifdef RTC_VALID
68#undef RTC_VALID
69#define RTC_VALID interrupts /* Register D */
70#endif
71
72/* Access routines when RTC accessed directly (like normal memory) */
73u_char
74todc_direct_read_val(int addr)
75{
76 return readb((void __iomem *)(todc_info->nvram_data + addr));
77}
78
79void
80todc_direct_write_val(int addr, unsigned char val)
81{
82 writeb(val, (void __iomem *)(todc_info->nvram_data + addr));
83 return;
84}
85
86/* Access routines for accessing m48txx type chips via addr/data regs */
87u_char
88todc_m48txx_read_val(int addr)
89{
90 outb(addr, todc_info->nvram_as0);
91 outb(addr>>todc_info->as0_bits, todc_info->nvram_as1);
92 return inb(todc_info->nvram_data);
93}
94
95void
96todc_m48txx_write_val(int addr, unsigned char val)
97{
98 outb(addr, todc_info->nvram_as0);
99 outb(addr>>todc_info->as0_bits, todc_info->nvram_as1);
100 outb(val, todc_info->nvram_data);
101 return;
102}
103
104/* Access routines for accessing mc146818 type chips via addr/data regs */
105u_char
106todc_mc146818_read_val(int addr)
107{
108 outb_p(addr, todc_info->nvram_as0);
109 return inb_p(todc_info->nvram_data);
110}
111
112void
113todc_mc146818_write_val(int addr, unsigned char val)
114{
115 outb_p(addr, todc_info->nvram_as0);
116 outb_p(val, todc_info->nvram_data);
117}
118
119
120/*
121 * Routines to make RTC chips with NVRAM buried behind an addr/data pair
122 * have the NVRAM and clock regs appear at the same level.
123 * The NVRAM will appear to start at addr 0 and the clock regs will appear
124 * to start immediately after the NVRAM (actually, start at offset
125 * todc_info->nvram_size).
126 */
127static inline u_char
128todc_read_val(int addr)
129{
130 u_char val;
131
132 if (todc_info->sw_flags & TODC_FLAG_2_LEVEL_NVRAM) {
133 if (addr < todc_info->nvram_size) { /* NVRAM */
134 ppc_md.rtc_write_val(todc_info->nvram_addr_reg, addr);
135 val = ppc_md.rtc_read_val(todc_info->nvram_data_reg);
136 } else { /* Clock Reg */
137 addr -= todc_info->nvram_size;
138 val = ppc_md.rtc_read_val(addr);
139 }
140 } else
141 val = ppc_md.rtc_read_val(addr);
142
143 return val;
144}
145
146static inline void
147todc_write_val(int addr, u_char val)
148{
149 if (todc_info->sw_flags & TODC_FLAG_2_LEVEL_NVRAM) {
150 if (addr < todc_info->nvram_size) { /* NVRAM */
151 ppc_md.rtc_write_val(todc_info->nvram_addr_reg, addr);
152 ppc_md.rtc_write_val(todc_info->nvram_data_reg, val);
153 } else { /* Clock Reg */
154 addr -= todc_info->nvram_size;
155 ppc_md.rtc_write_val(addr, val);
156 }
157 } else
158 ppc_md.rtc_write_val(addr, val);
159}
160
161/*
162 * TODC routines
163 *
164 * There is some ugly stuff in that there are assumptions for the mc146818.
165 *
166 * Assumptions:
167 * - todc_info->control_a has the offset as mc146818 Register B reg
168 * - todc_info->control_b has the offset as mc146818 Register A reg
169 * - m48txx control reg's write enable or 'W' bit is same as
170 * mc146818 Register B 'SET' bit (i.e., 0x80)
171 *
172 * These assumptions were made to make the code simpler.
173 */
174long __init
175todc_time_init(void)
176{
177 u_char cntl_b;
178
179 if (!ppc_md.rtc_read_val)
180 ppc_md.rtc_read_val = ppc_md.nvram_read_val;
181 if (!ppc_md.rtc_write_val)
182 ppc_md.rtc_write_val = ppc_md.nvram_write_val;
183
184 cntl_b = todc_read_val(todc_info->control_b);
185
186 if (todc_info->rtc_type == TODC_TYPE_MC146818) {
187 if ((cntl_b & 0x70) != 0x20) {
188 printk(KERN_INFO "TODC real-time-clock was stopped."
189 " Now starting...");
190 cntl_b &= ~0x70;
191 cntl_b |= 0x20;
192 }
193
194 todc_write_val(todc_info->control_b, cntl_b);
195 } else if (todc_info->rtc_type == TODC_TYPE_DS17285) {
196 u_char mode;
197
198 mode = todc_read_val(TODC_TYPE_DS17285_CNTL_A);
199 /* Make sure countdown clear is not set */
200 mode &= ~0x40;
201 /* Enable oscillator, extended register set */
202 mode |= 0x30;
203 todc_write_val(TODC_TYPE_DS17285_CNTL_A, mode);
204
205 } else if (todc_info->rtc_type == TODC_TYPE_DS1501) {
206 u_char month;
207
208 todc_info->enable_read = TODC_DS1501_CNTL_B_TE;
209 todc_info->enable_write = TODC_DS1501_CNTL_B_TE;
210
211 month = todc_read_val(todc_info->month);
212
213 if ((month & 0x80) == 0x80) {
214 printk(KERN_INFO "TODC %s %s\n",
215 "real-time-clock was stopped.",
216 "Now starting...");
217 month &= ~0x80;
218 todc_write_val(todc_info->month, month);
219 }
220
221 cntl_b &= ~TODC_DS1501_CNTL_B_TE;
222 todc_write_val(todc_info->control_b, cntl_b);
223 } else { /* must be a m48txx type */
224 u_char cntl_a;
225
226 todc_info->enable_read = TODC_MK48TXX_CNTL_A_R;
227 todc_info->enable_write = TODC_MK48TXX_CNTL_A_W;
228
229 cntl_a = todc_read_val(todc_info->control_a);
230
231 /* Check & clear STOP bit in control B register */
232 if (cntl_b & TODC_MK48TXX_DAY_CB) {
233 printk(KERN_INFO "TODC %s %s\n",
234 "real-time-clock was stopped.",
235 "Now starting...");
236
237 cntl_a |= todc_info->enable_write;
238 cntl_b &= ~TODC_MK48TXX_DAY_CB;/* Start Oscil */
239
240 todc_write_val(todc_info->control_a, cntl_a);
241 todc_write_val(todc_info->control_b, cntl_b);
242 }
243
244 /* Make sure READ & WRITE bits are cleared. */
245 cntl_a &= ~(todc_info->enable_write | todc_info->enable_read);
246 todc_write_val(todc_info->control_a, cntl_a);
247 }
248
249 return 0;
250}
251
252/*
253 * There is some ugly stuff in that there are assumptions that for a mc146818,
254 * the todc_info->control_a has the offset of the mc146818 Register B reg and
255 * that the register'ss 'SET' bit is the same as the m48txx's write enable
256 * bit in the control register of the m48txx (i.e., 0x80).
257 *
258 * It was done to make the code look simpler.
259 */
260void
261todc_get_rtc_time(struct rtc_time *tm)
262{
263 uint year = 0, mon = 0, mday = 0, hour = 0, min = 0, sec = 0;
264 uint limit, i;
265 u_char save_control, uip = 0;
266 extern void GregorianDay(struct rtc_time *);
267
268 spin_lock(&rtc_lock);
269 save_control = todc_read_val(todc_info->control_a);
270
271 if (todc_info->rtc_type != TODC_TYPE_MC146818) {
272 limit = 1;
273
274 switch (todc_info->rtc_type) {
275 case TODC_TYPE_DS1553:
276 case TODC_TYPE_DS1557:
277 case TODC_TYPE_DS1743:
278 case TODC_TYPE_DS1746: /* XXXX BAD HACK -> FIX */
279 case TODC_TYPE_DS1747:
280 case TODC_TYPE_DS17285:
281 break;
282 default:
283 todc_write_val(todc_info->control_a,
284 (save_control | todc_info->enable_read));
285 }
286 } else
287 limit = 100000000;
288
289 for (i=0; i<limit; i++) {
290 if (todc_info->rtc_type == TODC_TYPE_MC146818)
291 uip = todc_read_val(todc_info->RTC_FREQ_SELECT);
292
293 sec = todc_read_val(todc_info->seconds) & 0x7f;
294 min = todc_read_val(todc_info->minutes) & 0x7f;
295 hour = todc_read_val(todc_info->hours) & 0x3f;
296 mday = todc_read_val(todc_info->day_of_month) & 0x3f;
297 mon = todc_read_val(todc_info->month) & 0x1f;
298 year = todc_read_val(todc_info->year) & 0xff;
299
300 if (todc_info->rtc_type == TODC_TYPE_MC146818) {
301 uip |= todc_read_val(todc_info->RTC_FREQ_SELECT);
302 if ((uip & RTC_UIP) == 0)
303 break;
304 }
305 }
306
307 if (todc_info->rtc_type != TODC_TYPE_MC146818) {
308 switch (todc_info->rtc_type) {
309 case TODC_TYPE_DS1553:
310 case TODC_TYPE_DS1557:
311 case TODC_TYPE_DS1743:
312 case TODC_TYPE_DS1746: /* XXXX BAD HACK -> FIX */
313 case TODC_TYPE_DS1747:
314 case TODC_TYPE_DS17285:
315 break;
316 default:
317 save_control &= ~(todc_info->enable_read);
318 todc_write_val(todc_info->control_a, save_control);
319 }
320 }
321 spin_unlock(&rtc_lock);
322
323 if ((todc_info->rtc_type != TODC_TYPE_MC146818)
324 || ((save_control & RTC_DM_BINARY) == 0)
325 || RTC_ALWAYS_BCD) {
326 BCD_TO_BIN(sec);
327 BCD_TO_BIN(min);
328 BCD_TO_BIN(hour);
329 BCD_TO_BIN(mday);
330 BCD_TO_BIN(mon);
331 BCD_TO_BIN(year);
332 }
333
334 if ((year + 1900) < 1970) {
335 year += 100;
336 }
337
338 tm->tm_sec = sec;
339 tm->tm_min = min;
340 tm->tm_hour = hour;
341 tm->tm_mday = mday;
342 tm->tm_mon = mon;
343 tm->tm_year = year;
344
345 GregorianDay(tm);
346}
347
348int
349todc_set_rtc_time(struct rtc_time *tm)
350{
351 u_char save_control, save_freq_select = 0;
352
353 spin_lock(&rtc_lock);
354 save_control = todc_read_val(todc_info->control_a);
355
356 /* Assuming MK48T59_RTC_CA_WRITE & RTC_SET are equal */
357 todc_write_val(todc_info->control_a,
358 (save_control | todc_info->enable_write));
359 save_control &= ~(todc_info->enable_write); /* in case it was set */
360
361 if (todc_info->rtc_type == TODC_TYPE_MC146818) {
362 save_freq_select = todc_read_val(todc_info->RTC_FREQ_SELECT);
363 todc_write_val(todc_info->RTC_FREQ_SELECT,
364 save_freq_select | RTC_DIV_RESET2);
365 }
366
367 if ((todc_info->rtc_type != TODC_TYPE_MC146818)
368 || ((save_control & RTC_DM_BINARY) == 0)
369 || RTC_ALWAYS_BCD) {
370 BIN_TO_BCD(tm->tm_sec);
371 BIN_TO_BCD(tm->tm_min);
372 BIN_TO_BCD(tm->tm_hour);
373 BIN_TO_BCD(tm->tm_mon);
374 BIN_TO_BCD(tm->tm_mday);
375 BIN_TO_BCD(tm->tm_year);
376 }
377
378 todc_write_val(todc_info->seconds, tm->tm_sec);
379 todc_write_val(todc_info->minutes, tm->tm_min);
380 todc_write_val(todc_info->hours, tm->tm_hour);
381 todc_write_val(todc_info->month, tm->tm_mon);
382 todc_write_val(todc_info->day_of_month, tm->tm_mday);
383 todc_write_val(todc_info->year, tm->tm_year);
384
385 todc_write_val(todc_info->control_a, save_control);
386
387 if (todc_info->rtc_type == TODC_TYPE_MC146818)
388 todc_write_val(todc_info->RTC_FREQ_SELECT, save_freq_select);
389
390 spin_unlock(&rtc_lock);
391 return 0;
392}
diff --git a/include/asm-powerpc/todc.h b/include/asm-powerpc/todc.h
new file mode 100644
index 000000000000..60a8c39b8c11
--- /dev/null
+++ b/include/asm-powerpc/todc.h
@@ -0,0 +1,487 @@
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
22typedef 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
473extern todc_info_t *todc_info;
474
475unsigned char todc_direct_read_val(int addr);
476void todc_direct_write_val(int addr, unsigned char val);
477unsigned char todc_m48txx_read_val(int addr);
478void todc_m48txx_write_val(int addr, unsigned char val);
479unsigned char todc_mc146818_read_val(int addr);
480void todc_mc146818_write_val(int addr, unsigned char val);
481
482long todc_time_init(void);
483void todc_get_rtc_time(struct rtc_time *);
484int todc_set_rtc_time(struct rtc_time *);
485void todc_calibrate_decr(void);
486
487#endif /* __PPC_KERNEL_TODC_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-28 00:11:47 -0500