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提交 0f03a43b 编写于 作者: D David Gibson 提交者： Paul Mackerras
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[POWERPC] Remove todc code from ARCH=powerpc 

Apparently we've copied the todc drivers, for various RTCs used in
embedded machines from ARCH=ppc to ARCH=powerpc, despite the fact that
it's never used in the latter.  This patch removes it.

If we ever need these drivers (which we probably shouldn't now the RTC
class stuff is in), we can transfer them one by one from ARCH=ppc,
removing from the hideous abomination which is the todc
"infrastructure".
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: NPaul Mackerras <paulus@samba.org>
上级 5b43d20a
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arch/powerpc/Kconfig
浏览文件 @ 0f03a43b
......@@ -594,12 +594,6 @@ config TAU_AVERAGE
If in doubt, say N here.
config PPC_TODC
depends on EMBEDDED6xx
bool "Generic Time-of-day Clock (TODC) support"
---help---
This adds support for many TODC/RTC chips.
endmenu
source arch/powerpc/platforms/embedded6xx/Kconfig
......
arch/powerpc/sysdev/Makefile
浏览文件 @ 0f03a43b
......@@ -10,7 +10,6 @@ obj-$(CONFIG_40x) += dcr.o
obj-$(CONFIG_U3_DART) += dart_iommu.o
obj-$(CONFIG_MMIO_NVRAM) += mmio_nvram.o
obj-$(CONFIG_FSL_SOC) += fsl_soc.o
obj-$(CONFIG_PPC_TODC) += todc.o
obj-$(CONFIG_TSI108_BRIDGE) += tsi108_pci.o tsi108_dev.o
obj-$(CONFIG_QUICC_ENGINE) += qe_lib/
......
arch/powerpc/sysdev/todc.c 已删除 100644 → 0
浏览文件 @ 5b43d20a
/*
* Time of Day Clock support for the M48T35, M48T37, M48T59, and MC146818
* Real Time Clocks/Timekeepers.
*
* Author: Mark A. Greer <mgreer@mvista.com>
*
* 2001-2004 (c) MontaVista, Software, Inc. This file is licensed under
* the terms of the GNU General Public License version 2. This program
* is licensed "as is" without any warranty of any kind, whether express
* or implied.
*/
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/time.h>
#include <linux/timex.h>
#include <linux/bcd.h>
#include <linux/mc146818rtc.h>
#include <asm/machdep.h>
#include <asm/io.h>
#include <asm/time.h>
#include <asm/todc.h>
/*
* Depending on the hardware on your board and your board design, the
* RTC/NVRAM may be accessed either directly (like normal memory) or via
* address/data registers. If your board uses the direct method, set
* 'nvram_data' to the base address of your nvram and leave 'nvram_as0' and
* 'nvram_as1' NULL. If your board uses address/data regs to access nvram,
* set 'nvram_as0' to the address of the lower byte, set 'nvram_as1' to the
* address of the upper byte (leave NULL if using mc146818), and set
* 'nvram_data' to the address of the 8-bit data register.
*
* Note: Even though the documentation for the various RTC chips say that it
* take up to a second before it starts updating once the 'R' bit is
* cleared, they always seem to update even though we bang on it many
* times a second. This is true, except for the Dallas Semi 1746/1747
* (possibly others). Those chips seem to have a real problem whenever
* we set the 'R' bit before reading them, they basically stop counting.
* --MAG
*/
/*
* 'todc_info' should be initialized in your *_setup.c file to
* point to a fully initialized 'todc_info_t' structure.
* This structure holds all the register offsets for your particular
* TODC/RTC chip.
* TODC_ALLOC()/TODC_INIT() will allocate and initialize this table for you.
*/
#ifdef RTC_FREQ_SELECT
#undef RTC_FREQ_SELECT
#define RTC_FREQ_SELECT control_b /* Register A */
#endif
#ifdef RTC_CONTROL
#undef RTC_CONTROL
#define RTC_CONTROL control_a /* Register B */
#endif
#ifdef RTC_INTR_FLAGS
#undef RTC_INTR_FLAGS
#define RTC_INTR_FLAGS watchdog /* Register C */
#endif
#ifdef RTC_VALID
#undef RTC_VALID
#define RTC_VALID interrupts /* Register D */
#endif
/* Access routines when RTC accessed directly (like normal memory) */
u_char
todc_direct_read_val(int addr)
{
return readb((void __iomem *)(todc_info->nvram_data + addr));
}
void
todc_direct_write_val(int addr, unsigned char val)
{
writeb(val, (void __iomem *)(todc_info->nvram_data + addr));
return;
}
/* Access routines for accessing m48txx type chips via addr/data regs */
u_char
todc_m48txx_read_val(int addr)
{
outb(addr, todc_info->nvram_as0);
outb(addr>>todc_info->as0_bits, todc_info->nvram_as1);
return inb(todc_info->nvram_data);
}
void
todc_m48txx_write_val(int addr, unsigned char val)
{
outb(addr, todc_info->nvram_as0);
outb(addr>>todc_info->as0_bits, todc_info->nvram_as1);
outb(val, todc_info->nvram_data);
return;
}
/* Access routines for accessing mc146818 type chips via addr/data regs */
u_char
todc_mc146818_read_val(int addr)
{
outb_p(addr, todc_info->nvram_as0);
return inb_p(todc_info->nvram_data);
}
void
todc_mc146818_write_val(int addr, unsigned char val)
{
outb_p(addr, todc_info->nvram_as0);
outb_p(val, todc_info->nvram_data);
}
/*
* Routines to make RTC chips with NVRAM buried behind an addr/data pair
* have the NVRAM and clock regs appear at the same level.
* The NVRAM will appear to start at addr 0 and the clock regs will appear
* to start immediately after the NVRAM (actually, start at offset
* todc_info->nvram_size).
*/
static inline u_char
todc_read_val(int addr)
{
u_char val;
if (todc_info->sw_flags & TODC_FLAG_2_LEVEL_NVRAM) {
if (addr < todc_info->nvram_size) { /* NVRAM */
ppc_md.rtc_write_val(todc_info->nvram_addr_reg, addr);
val = ppc_md.rtc_read_val(todc_info->nvram_data_reg);
} else { /* Clock Reg */
addr -= todc_info->nvram_size;
val = ppc_md.rtc_read_val(addr);
}
} else
val = ppc_md.rtc_read_val(addr);
return val;
}
static inline void
todc_write_val(int addr, u_char val)
{
if (todc_info->sw_flags & TODC_FLAG_2_LEVEL_NVRAM) {
if (addr < todc_info->nvram_size) { /* NVRAM */
ppc_md.rtc_write_val(todc_info->nvram_addr_reg, addr);
ppc_md.rtc_write_val(todc_info->nvram_data_reg, val);
} else { /* Clock Reg */
addr -= todc_info->nvram_size;
ppc_md.rtc_write_val(addr, val);
}
} else
ppc_md.rtc_write_val(addr, val);
}
/*
* TODC routines
*
* There is some ugly stuff in that there are assumptions for the mc146818.
*
* Assumptions:
* - todc_info->control_a has the offset as mc146818 Register B reg
* - todc_info->control_b has the offset as mc146818 Register A reg
* - m48txx control reg's write enable or 'W' bit is same as
* mc146818 Register B 'SET' bit (i.e., 0x80)
*
* These assumptions were made to make the code simpler.
*/
long __init
todc_time_init(void)
{
u_char cntl_b;
if (!ppc_md.rtc_read_val)
ppc_md.rtc_read_val = ppc_md.nvram_read_val;
if (!ppc_md.rtc_write_val)
ppc_md.rtc_write_val = ppc_md.nvram_write_val;
cntl_b = todc_read_val(todc_info->control_b);
if (todc_info->rtc_type == TODC_TYPE_MC146818) {
if ((cntl_b & 0x70) != 0x20) {
printk(KERN_INFO "TODC real-time-clock was stopped."
" Now starting...");
cntl_b &= ~0x70;
cntl_b |= 0x20;
}
todc_write_val(todc_info->control_b, cntl_b);
} else if (todc_info->rtc_type == TODC_TYPE_DS17285) {
u_char mode;
mode = todc_read_val(TODC_TYPE_DS17285_CNTL_A);
/* Make sure countdown clear is not set */
mode &= ~0x40;
/* Enable oscillator, extended register set */
mode |= 0x30;
todc_write_val(TODC_TYPE_DS17285_CNTL_A, mode);
} else if (todc_info->rtc_type == TODC_TYPE_DS1501) {
u_char month;
todc_info->enable_read = TODC_DS1501_CNTL_B_TE;
todc_info->enable_write = TODC_DS1501_CNTL_B_TE;
month = todc_read_val(todc_info->month);
if ((month & 0x80) == 0x80) {
printk(KERN_INFO "TODC %s %s\n",
"real-time-clock was stopped.",
"Now starting...");
month &= ~0x80;
todc_write_val(todc_info->month, month);
}
cntl_b &= ~TODC_DS1501_CNTL_B_TE;
todc_write_val(todc_info->control_b, cntl_b);
} else { /* must be a m48txx type */
u_char cntl_a;
todc_info->enable_read = TODC_MK48TXX_CNTL_A_R;
todc_info->enable_write = TODC_MK48TXX_CNTL_A_W;
cntl_a = todc_read_val(todc_info->control_a);
/* Check & clear STOP bit in control B register */
if (cntl_b & TODC_MK48TXX_DAY_CB) {
printk(KERN_INFO "TODC %s %s\n",
"real-time-clock was stopped.",
"Now starting...");
cntl_a |= todc_info->enable_write;
cntl_b &= ~TODC_MK48TXX_DAY_CB;/* Start Oscil */
todc_write_val(todc_info->control_a, cntl_a);
todc_write_val(todc_info->control_b, cntl_b);
}
/* Make sure READ & WRITE bits are cleared. */
cntl_a &= ~(todc_info->enable_write | todc_info->enable_read);
todc_write_val(todc_info->control_a, cntl_a);
}
return 0;
}
/*
* There is some ugly stuff in that there are assumptions that for a mc146818,
* the todc_info->control_a has the offset of the mc146818 Register B reg and
* that the register'ss 'SET' bit is the same as the m48txx's write enable
* bit in the control register of the m48txx (i.e., 0x80).
*
* It was done to make the code look simpler.
*/
void
todc_get_rtc_time(struct rtc_time *tm)
{
uint year = 0, mon = 0, mday = 0, hour = 0, min = 0, sec = 0;
uint limit, i;
u_char save_control, uip = 0;
extern void GregorianDay(struct rtc_time *);
spin_lock(&rtc_lock);
save_control = todc_read_val(todc_info->control_a);
if (todc_info->rtc_type != TODC_TYPE_MC146818) {
limit = 1;
switch (todc_info->rtc_type) {
case TODC_TYPE_DS1553:
case TODC_TYPE_DS1557:
case TODC_TYPE_DS1743:
case TODC_TYPE_DS1746: /* XXXX BAD HACK -> FIX */
case TODC_TYPE_DS1747:
case TODC_TYPE_DS17285:
break;
default:
todc_write_val(todc_info->control_a,
(save_control | todc_info->enable_read));
}
} else
limit = 100000000;
for (i=0; i<limit; i++) {
if (todc_info->rtc_type == TODC_TYPE_MC146818)
uip = todc_read_val(todc_info->RTC_FREQ_SELECT);
sec = todc_read_val(todc_info->seconds) & 0x7f;
min = todc_read_val(todc_info->minutes) & 0x7f;
hour = todc_read_val(todc_info->hours) & 0x3f;
mday = todc_read_val(todc_info->day_of_month) & 0x3f;
mon = todc_read_val(todc_info->month) & 0x1f;
year = todc_read_val(todc_info->year) & 0xff;
if (todc_info->rtc_type == TODC_TYPE_MC146818) {
uip |= todc_read_val(todc_info->RTC_FREQ_SELECT);
if ((uip & RTC_UIP) == 0)
break;
}
}
if (todc_info->rtc_type != TODC_TYPE_MC146818) {
switch (todc_info->rtc_type) {
case TODC_TYPE_DS1553:
case TODC_TYPE_DS1557:
case TODC_TYPE_DS1743:
case TODC_TYPE_DS1746: /* XXXX BAD HACK -> FIX */
case TODC_TYPE_DS1747:
case TODC_TYPE_DS17285:
break;
default:
save_control &= ~(todc_info->enable_read);
todc_write_val(todc_info->control_a, save_control);
}
}
spin_unlock(&rtc_lock);
if ((todc_info->rtc_type != TODC_TYPE_MC146818)
|| ((save_control & RTC_DM_BINARY) == 0)
|| RTC_ALWAYS_BCD) {
BCD_TO_BIN(sec);
BCD_TO_BIN(min);
BCD_TO_BIN(hour);
BCD_TO_BIN(mday);
BCD_TO_BIN(mon);
BCD_TO_BIN(year);
}
if ((year + 1900) < 1970) {
year += 100;
}
tm->tm_sec = sec;
tm->tm_min = min;
tm->tm_hour = hour;
tm->tm_mday = mday;
tm->tm_mon = mon;
tm->tm_year = year;
GregorianDay(tm);
}
int
todc_set_rtc_time(struct rtc_time *tm)
{
u_char save_control, save_freq_select = 0;
spin_lock(&rtc_lock);
save_control = todc_read_val(todc_info->control_a);
/* Assuming MK48T59_RTC_CA_WRITE & RTC_SET are equal */
todc_write_val(todc_info->control_a,
(save_control | todc_info->enable_write));
save_control &= ~(todc_info->enable_write); /* in case it was set */
if (todc_info->rtc_type == TODC_TYPE_MC146818) {
save_freq_select = todc_read_val(todc_info->RTC_FREQ_SELECT);
todc_write_val(todc_info->RTC_FREQ_SELECT,
save_freq_select | RTC_DIV_RESET2);
}
if ((todc_info->rtc_type != TODC_TYPE_MC146818)
|| ((save_control & RTC_DM_BINARY) == 0)
|| RTC_ALWAYS_BCD) {
BIN_TO_BCD(tm->tm_sec);
BIN_TO_BCD(tm->tm_min);
BIN_TO_BCD(tm->tm_hour);
BIN_TO_BCD(tm->tm_mon);
BIN_TO_BCD(tm->tm_mday);
BIN_TO_BCD(tm->tm_year);
}
todc_write_val(todc_info->seconds, tm->tm_sec);
todc_write_val(todc_info->minutes, tm->tm_min);
todc_write_val(todc_info->hours, tm->tm_hour);
todc_write_val(todc_info->month, tm->tm_mon);
todc_write_val(todc_info->day_of_month, tm->tm_mday);
todc_write_val(todc_info->year, tm->tm_year);
todc_write_val(todc_info->control_a, save_control);
if (todc_info->rtc_type == TODC_TYPE_MC146818)
todc_write_val(todc_info->RTC_FREQ_SELECT, save_freq_select);
spin_unlock(&rtc_lock);
return 0;
}
include/asm-powerpc/todc.h 已删除 100644 → 0
浏览文件 @ 5b43d20a
/*
* Definitions for the M48Txx and mc146818 series of Time of day/Real Time
* Clock chips.
*
* Author: Mark A. Greer <mgreer@mvista.com>
*
* 2001 (c) MontaVista, Software, Inc. This file is licensed under
* the terms of the GNU General Public License version 2. This program
* is licensed "as is" without any warranty of any kind, whether express
* or implied.
*/
/*
* Support for the M48T37/M48T59/.../mc146818 Real Time Clock chips.
* Purpose is to make one generic file that handles all of these chips instead
* of every platform implementing the same code over & over again.
*/
#ifndef __PPC_KERNEL_TODC_H
#define __PPC_KERNEL_TODC_H
typedef struct {
uint rtc_type; /* your particular chip */
/*
* Following are the addresses of the AS0, AS1, and DATA registers
* of these chips. Note that these are board-specific.
*/
unsigned int nvram_as0;
unsigned int nvram_as1;
unsigned int nvram_data;
/*
* Define bits to stop external set of regs from changing so
* the chip can be read/written reliably.
*/
unsigned char enable_read;
unsigned char enable_write;
/*
* Following is the number of AS0 address bits. This is normally
* 8 but some bad hardware routes address lines incorrectly.
*/
int as0_bits;
int nvram_size; /* Size of NVRAM on chip */
int sw_flags; /* Software control flags */
/* Following are the register offsets for the particular chip */
int year;
int month;
int day_of_month;
int day_of_week;
int hours;
int minutes;
int seconds;
int control_b;
int control_a;
int watchdog;
int interrupts;
int alarm_date;
int alarm_hour;
int alarm_minutes;
int alarm_seconds;
int century;
int flags;
/*
* Some RTC chips have their NVRAM buried behind a addr/data pair of
* regs on the first level/clock registers. The following fields
* are the addresses for those addr/data regs.
*/
int nvram_addr_reg;
int nvram_data_reg;
} todc_info_t;
/*
* Define the types of TODC/RTC variants that are supported in
* arch/ppc/kernel/todc_time.c
* Make a new one of these for any chip somehow differs from what's already
* defined. That way, if you ever need to put in code to touch those
* bits/registers in todc_time.c, you can put it inside an
* 'if (todc_info->rtc_type == TODC_TYPE_XXX)' so you won't break
* anyone else.
*/
#define TODC_TYPE_MK48T35 1
#define TODC_TYPE_MK48T37 2
#define TODC_TYPE_MK48T59 3
#define TODC_TYPE_DS1693 4 /* Dallas DS1693 RTC */
#define TODC_TYPE_DS1743 5 /* Dallas DS1743 RTC */
#define TODC_TYPE_DS1746 6 /* Dallas DS1746 RTC */
#define TODC_TYPE_DS1747 7 /* Dallas DS1747 RTC */
#define TODC_TYPE_DS1501 8 /* Dallas DS1501 RTC */
#define TODC_TYPE_DS1643 9 /* Dallas DS1643 RTC */
#define TODC_TYPE_PC97307 10 /* PC97307 internal RTC */
#define TODC_TYPE_DS1557 11 /* Dallas DS1557 RTC */
#define TODC_TYPE_DS17285 12 /* Dallas DS17285 RTC */
#define TODC_TYPE_DS1553 13 /* Dallas DS1553 RTC */
#define TODC_TYPE_MC146818 100 /* Leave room for m48txx's */
/*
* Bit to clear/set to enable reads/writes to the chip
*/
#define TODC_MK48TXX_CNTL_A_R 0x40
#define TODC_MK48TXX_CNTL_A_W 0x80
#define TODC_MK48TXX_DAY_CB 0x80
#define TODC_DS1501_CNTL_B_TE 0x80
/*
* Define flag bits used by todc routines.
*/
#define TODC_FLAG_2_LEVEL_NVRAM 0x00000001
/*
* Define the values for the various RTC's that should to into the todc_info
* table.
* Note: The XXX_NVRAM_SIZE, XXX_NVRAM_ADDR_REG, and XXX_NVRAM_DATA_REG only
* matter if XXX_SW_FLAGS has TODC_FLAG_2_LEVEL_NVRAM set.
*/
#define TODC_TYPE_MK48T35_NVRAM_SIZE 0x7ff8
#define TODC_TYPE_MK48T35_SW_FLAGS 0
#define TODC_TYPE_MK48T35_YEAR 0x7fff
#define TODC_TYPE_MK48T35_MONTH 0x7ffe
#define TODC_TYPE_MK48T35_DOM 0x7ffd /* Day of Month */
#define TODC_TYPE_MK48T35_DOW 0x7ffc /* Day of Week */
#define TODC_TYPE_MK48T35_HOURS 0x7ffb
#define TODC_TYPE_MK48T35_MINUTES 0x7ffa
#define TODC_TYPE_MK48T35_SECONDS 0x7ff9
#define TODC_TYPE_MK48T35_CNTL_B 0x7ff9
#define TODC_TYPE_MK48T35_CNTL_A 0x7ff8
#define TODC_TYPE_MK48T35_WATCHDOG 0x0000
#define TODC_TYPE_MK48T35_INTERRUPTS 0x0000
#define TODC_TYPE_MK48T35_ALARM_DATE 0x0000
#define TODC_TYPE_MK48T35_ALARM_HOUR 0x0000
#define TODC_TYPE_MK48T35_ALARM_MINUTES 0x0000
#define TODC_TYPE_MK48T35_ALARM_SECONDS 0x0000
#define TODC_TYPE_MK48T35_CENTURY 0x0000
#define TODC_TYPE_MK48T35_FLAGS 0x0000
#define TODC_TYPE_MK48T35_NVRAM_ADDR_REG 0
#define TODC_TYPE_MK48T35_NVRAM_DATA_REG 0
#define TODC_TYPE_MK48T37_NVRAM_SIZE 0x7ff0
#define TODC_TYPE_MK48T37_SW_FLAGS 0
#define TODC_TYPE_MK48T37_YEAR 0x7fff
#define TODC_TYPE_MK48T37_MONTH 0x7ffe
#define TODC_TYPE_MK48T37_DOM 0x7ffd /* Day of Month */
#define TODC_TYPE_MK48T37_DOW 0x7ffc /* Day of Week */
#define TODC_TYPE_MK48T37_HOURS 0x7ffb
#define TODC_TYPE_MK48T37_MINUTES 0x7ffa
#define TODC_TYPE_MK48T37_SECONDS 0x7ff9
#define TODC_TYPE_MK48T37_CNTL_B 0x7ff9
#define TODC_TYPE_MK48T37_CNTL_A 0x7ff8
#define TODC_TYPE_MK48T37_WATCHDOG 0x7ff7
#define TODC_TYPE_MK48T37_INTERRUPTS 0x7ff6
#define TODC_TYPE_MK48T37_ALARM_DATE 0x7ff5
#define TODC_TYPE_MK48T37_ALARM_HOUR 0x7ff4
#define TODC_TYPE_MK48T37_ALARM_MINUTES 0x7ff3
#define TODC_TYPE_MK48T37_ALARM_SECONDS 0x7ff2
#define TODC_TYPE_MK48T37_CENTURY 0x7ff1
#define TODC_TYPE_MK48T37_FLAGS 0x7ff0
#define TODC_TYPE_MK48T37_NVRAM_ADDR_REG 0
#define TODC_TYPE_MK48T37_NVRAM_DATA_REG 0
#define TODC_TYPE_MK48T59_NVRAM_SIZE 0x1ff0
#define TODC_TYPE_MK48T59_SW_FLAGS 0
#define TODC_TYPE_MK48T59_YEAR 0x1fff
#define TODC_TYPE_MK48T59_MONTH 0x1ffe
#define TODC_TYPE_MK48T59_DOM 0x1ffd /* Day of Month */
#define TODC_TYPE_MK48T59_DOW 0x1ffc /* Day of Week */
#define TODC_TYPE_MK48T59_HOURS 0x1ffb
#define TODC_TYPE_MK48T59_MINUTES 0x1ffa
#define TODC_TYPE_MK48T59_SECONDS 0x1ff9
#define TODC_TYPE_MK48T59_CNTL_B 0x1ff9
#define TODC_TYPE_MK48T59_CNTL_A 0x1ff8
#define TODC_TYPE_MK48T59_WATCHDOG 0x1fff
#define TODC_TYPE_MK48T59_INTERRUPTS 0x1fff
#define TODC_TYPE_MK48T59_ALARM_DATE 0x1fff
#define TODC_TYPE_MK48T59_ALARM_HOUR 0x1fff
#define TODC_TYPE_MK48T59_ALARM_MINUTES 0x1fff
#define TODC_TYPE_MK48T59_ALARM_SECONDS 0x1fff
#define TODC_TYPE_MK48T59_CENTURY 0x1fff
#define TODC_TYPE_MK48T59_FLAGS 0x1fff
#define TODC_TYPE_MK48T59_NVRAM_ADDR_REG 0
#define TODC_TYPE_MK48T59_NVRAM_DATA_REG 0
#define TODC_TYPE_DS1501_NVRAM_SIZE 0x100
#define TODC_TYPE_DS1501_SW_FLAGS TODC_FLAG_2_LEVEL_NVRAM
#define TODC_TYPE_DS1501_YEAR (TODC_TYPE_DS1501_NVRAM_SIZE + 0x06)
#define TODC_TYPE_DS1501_MONTH (TODC_TYPE_DS1501_NVRAM_SIZE + 0x05)
#define TODC_TYPE_DS1501_DOM (TODC_TYPE_DS1501_NVRAM_SIZE + 0x04)
#define TODC_TYPE_DS1501_DOW (TODC_TYPE_DS1501_NVRAM_SIZE + 0x03)
#define TODC_TYPE_DS1501_HOURS (TODC_TYPE_DS1501_NVRAM_SIZE + 0x02)
#define TODC_TYPE_DS1501_MINUTES (TODC_TYPE_DS1501_NVRAM_SIZE + 0x01)
#define TODC_TYPE_DS1501_SECONDS (TODC_TYPE_DS1501_NVRAM_SIZE + 0x00)
#define TODC_TYPE_DS1501_CNTL_B (TODC_TYPE_DS1501_NVRAM_SIZE + 0x0f)
#define TODC_TYPE_DS1501_CNTL_A (TODC_TYPE_DS1501_NVRAM_SIZE + 0x0f)
#define TODC_TYPE_DS1501_WATCHDOG (TODC_TYPE_DS1501_NVRAM_SIZE + 0xff)
#define TODC_TYPE_DS1501_INTERRUPTS (TODC_TYPE_DS1501_NVRAM_SIZE + 0xff)
#define TODC_TYPE_DS1501_ALARM_DATE (TODC_TYPE_DS1501_NVRAM_SIZE + 0x0b)
#define TODC_TYPE_DS1501_ALARM_HOUR (TODC_TYPE_DS1501_NVRAM_SIZE + 0x0a)
#define TODC_TYPE_DS1501_ALARM_MINUTES (TODC_TYPE_DS1501_NVRAM_SIZE + 0x09)
#define TODC_TYPE_DS1501_ALARM_SECONDS (TODC_TYPE_DS1501_NVRAM_SIZE + 0x08)
#define TODC_TYPE_DS1501_CENTURY (TODC_TYPE_DS1501_NVRAM_SIZE + 0x07)
#define TODC_TYPE_DS1501_FLAGS (TODC_TYPE_DS1501_NVRAM_SIZE + 0xff)
#define TODC_TYPE_DS1501_NVRAM_ADDR_REG 0x10
#define TODC_TYPE_DS1501_NVRAM_DATA_REG 0x13
#define TODC_TYPE_DS1553_NVRAM_SIZE 0x1ff0
#define TODC_TYPE_DS1553_SW_FLAGS 0
#define TODC_TYPE_DS1553_YEAR 0x1fff
#define TODC_TYPE_DS1553_MONTH 0x1ffe
#define TODC_TYPE_DS1553_DOM 0x1ffd /* Day of Month */
#define TODC_TYPE_DS1553_DOW 0x1ffc /* Day of Week */
#define TODC_TYPE_DS1553_HOURS 0x1ffb
#define TODC_TYPE_DS1553_MINUTES 0x1ffa
#define TODC_TYPE_DS1553_SECONDS 0x1ff9
#define TODC_TYPE_DS1553_CNTL_B 0x1ff9
#define TODC_TYPE_DS1553_CNTL_A 0x1ff8 /* control_a R/W regs */
#define TODC_TYPE_DS1553_WATCHDOG 0x1ff7
#define TODC_TYPE_DS1553_INTERRUPTS 0x1ff6
#define TODC_TYPE_DS1553_ALARM_DATE 0x1ff5
#define TODC_TYPE_DS1553_ALARM_HOUR 0x1ff4
#define TODC_TYPE_DS1553_ALARM_MINUTES 0x1ff3
#define TODC_TYPE_DS1553_ALARM_SECONDS 0x1ff2
#define TODC_TYPE_DS1553_CENTURY 0x1ff8
#define TODC_TYPE_DS1553_FLAGS 0x1ff0
#define TODC_TYPE_DS1553_NVRAM_ADDR_REG 0
#define TODC_TYPE_DS1553_NVRAM_DATA_REG 0
#define TODC_TYPE_DS1557_NVRAM_SIZE 0x7fff0
#define TODC_TYPE_DS1557_SW_FLAGS 0
#define TODC_TYPE_DS1557_YEAR 0x7ffff
#define TODC_TYPE_DS1557_MONTH 0x7fffe
#define TODC_TYPE_DS1557_DOM 0x7fffd /* Day of Month */
#define TODC_TYPE_DS1557_DOW 0x7fffc /* Day of Week */
#define TODC_TYPE_DS1557_HOURS 0x7fffb
#define TODC_TYPE_DS1557_MINUTES 0x7fffa
#define TODC_TYPE_DS1557_SECONDS 0x7fff9
#define TODC_TYPE_DS1557_CNTL_B 0x7fff9
#define TODC_TYPE_DS1557_CNTL_A 0x7fff8 /* control_a R/W regs */
#define TODC_TYPE_DS1557_WATCHDOG 0x7fff7
#define TODC_TYPE_DS1557_INTERRUPTS 0x7fff6
#define TODC_TYPE_DS1557_ALARM_DATE 0x7fff5
#define TODC_TYPE_DS1557_ALARM_HOUR 0x7fff4
#define TODC_TYPE_DS1557_ALARM_MINUTES 0x7fff3
#define TODC_TYPE_DS1557_ALARM_SECONDS 0x7fff2
#define TODC_TYPE_DS1557_CENTURY 0x7fff8
#define TODC_TYPE_DS1557_FLAGS 0x7fff0
#define TODC_TYPE_DS1557_NVRAM_ADDR_REG 0
#define TODC_TYPE_DS1557_NVRAM_DATA_REG 0
#define TODC_TYPE_DS1643_NVRAM_SIZE 0x1ff8
#define TODC_TYPE_DS1643_SW_FLAGS 0
#define TODC_TYPE_DS1643_YEAR 0x1fff
#define TODC_TYPE_DS1643_MONTH 0x1ffe
#define TODC_TYPE_DS1643_DOM 0x1ffd /* Day of Month */
#define TODC_TYPE_DS1643_DOW 0x1ffc /* Day of Week */
#define TODC_TYPE_DS1643_HOURS 0x1ffb
#define TODC_TYPE_DS1643_MINUTES 0x1ffa
#define TODC_TYPE_DS1643_SECONDS 0x1ff9
#define TODC_TYPE_DS1643_CNTL_B 0x1ff9
#define TODC_TYPE_DS1643_CNTL_A 0x1ff8 /* control_a R/W regs */
#define TODC_TYPE_DS1643_WATCHDOG 0x1fff
#define TODC_TYPE_DS1643_INTERRUPTS 0x1fff
#define TODC_TYPE_DS1643_ALARM_DATE 0x1fff
#define TODC_TYPE_DS1643_ALARM_HOUR 0x1fff
#define TODC_TYPE_DS1643_ALARM_MINUTES 0x1fff
#define TODC_TYPE_DS1643_ALARM_SECONDS 0x1fff
#define TODC_TYPE_DS1643_CENTURY 0x1ff8
#define TODC_TYPE_DS1643_FLAGS 0x1fff
#define TODC_TYPE_DS1643_NVRAM_ADDR_REG 0
#define TODC_TYPE_DS1643_NVRAM_DATA_REG 0
#define TODC_TYPE_DS1693_NVRAM_SIZE 0 /* Not handled yet */
#define TODC_TYPE_DS1693_SW_FLAGS 0
#define TODC_TYPE_DS1693_YEAR 0x09
#define TODC_TYPE_DS1693_MONTH 0x08
#define TODC_TYPE_DS1693_DOM 0x07 /* Day of Month */
#define TODC_TYPE_DS1693_DOW 0x06 /* Day of Week */
#define TODC_TYPE_DS1693_HOURS 0x04
#define TODC_TYPE_DS1693_MINUTES 0x02
#define TODC_TYPE_DS1693_SECONDS 0x00
#define TODC_TYPE_DS1693_CNTL_B 0x0b
#define TODC_TYPE_DS1693_CNTL_A 0x0a
#define TODC_TYPE_DS1693_WATCHDOG 0xff
#define TODC_TYPE_DS1693_INTERRUPTS 0xff
#define TODC_TYPE_DS1693_ALARM_DATE 0x49
#define TODC_TYPE_DS1693_ALARM_HOUR 0x05
#define TODC_TYPE_DS1693_ALARM_MINUTES 0x03
#define TODC_TYPE_DS1693_ALARM_SECONDS 0x01
#define TODC_TYPE_DS1693_CENTURY 0x48
#define TODC_TYPE_DS1693_FLAGS 0xff
#define TODC_TYPE_DS1693_NVRAM_ADDR_REG 0
#define TODC_TYPE_DS1693_NVRAM_DATA_REG 0
#define TODC_TYPE_DS1743_NVRAM_SIZE 0x1ff8
#define TODC_TYPE_DS1743_SW_FLAGS 0
#define TODC_TYPE_DS1743_YEAR 0x1fff
#define TODC_TYPE_DS1743_MONTH 0x1ffe
#define TODC_TYPE_DS1743_DOM 0x1ffd /* Day of Month */
#define TODC_TYPE_DS1743_DOW 0x1ffc /* Day of Week */
#define TODC_TYPE_DS1743_HOURS 0x1ffb
#define TODC_TYPE_DS1743_MINUTES 0x1ffa
#define TODC_TYPE_DS1743_SECONDS 0x1ff9
#define TODC_TYPE_DS1743_CNTL_B 0x1ff9
#define TODC_TYPE_DS1743_CNTL_A 0x1ff8 /* control_a R/W regs */
#define TODC_TYPE_DS1743_WATCHDOG 0x1fff
#define TODC_TYPE_DS1743_INTERRUPTS 0x1fff
#define TODC_TYPE_DS1743_ALARM_DATE 0x1fff
#define TODC_TYPE_DS1743_ALARM_HOUR 0x1fff
#define TODC_TYPE_DS1743_ALARM_MINUTES 0x1fff
#define TODC_TYPE_DS1743_ALARM_SECONDS 0x1fff
#define TODC_TYPE_DS1743_CENTURY 0x1ff8
#define TODC_TYPE_DS1743_FLAGS 0x1fff
#define TODC_TYPE_DS1743_NVRAM_ADDR_REG 0
#define TODC_TYPE_DS1743_NVRAM_DATA_REG 0
#define TODC_TYPE_DS1746_NVRAM_SIZE 0x1fff8
#define TODC_TYPE_DS1746_SW_FLAGS 0
#define TODC_TYPE_DS1746_YEAR 0x1ffff
#define TODC_TYPE_DS1746_MONTH 0x1fffe
#define TODC_TYPE_DS1746_DOM 0x1fffd /* Day of Month */
#define TODC_TYPE_DS1746_DOW 0x1fffc /* Day of Week */
#define TODC_TYPE_DS1746_HOURS 0x1fffb
#define TODC_TYPE_DS1746_MINUTES 0x1fffa
#define TODC_TYPE_DS1746_SECONDS 0x1fff9
#define TODC_TYPE_DS1746_CNTL_B 0x1fff9
#define TODC_TYPE_DS1746_CNTL_A 0x1fff8 /* control_a R/W regs */
#define TODC_TYPE_DS1746_WATCHDOG 0x00000
#define TODC_TYPE_DS1746_INTERRUPTS 0x00000
#define TODC_TYPE_DS1746_ALARM_DATE 0x00000
#define TODC_TYPE_DS1746_ALARM_HOUR 0x00000
#define TODC_TYPE_DS1746_ALARM_MINUTES 0x00000
#define TODC_TYPE_DS1746_ALARM_SECONDS 0x00000
#define TODC_TYPE_DS1746_CENTURY 0x00000
#define TODC_TYPE_DS1746_FLAGS 0x00000
#define TODC_TYPE_DS1746_NVRAM_ADDR_REG 0
#define TODC_TYPE_DS1746_NVRAM_DATA_REG 0
#define TODC_TYPE_DS1747_NVRAM_SIZE 0x7fff8
#define TODC_TYPE_DS1747_SW_FLAGS 0
#define TODC_TYPE_DS1747_YEAR 0x7ffff
#define TODC_TYPE_DS1747_MONTH 0x7fffe
#define TODC_TYPE_DS1747_DOM 0x7fffd /* Day of Month */
#define TODC_TYPE_DS1747_DOW 0x7fffc /* Day of Week */
#define TODC_TYPE_DS1747_HOURS 0x7fffb
#define TODC_TYPE_DS1747_MINUTES 0x7fffa
#define TODC_TYPE_DS1747_SECONDS 0x7fff9
#define TODC_TYPE_DS1747_CNTL_B 0x7fff9
#define TODC_TYPE_DS1747_CNTL_A 0x7fff8 /* control_a R/W regs */
#define TODC_TYPE_DS1747_WATCHDOG 0x00000
#define TODC_TYPE_DS1747_INTERRUPTS 0x00000
#define TODC_TYPE_DS1747_ALARM_DATE 0x00000
#define TODC_TYPE_DS1747_ALARM_HOUR 0x00000
#define TODC_TYPE_DS1747_ALARM_MINUTES 0x00000
#define TODC_TYPE_DS1747_ALARM_SECONDS 0x00000
#define TODC_TYPE_DS1747_CENTURY 0x00000
#define TODC_TYPE_DS1747_FLAGS 0x00000
#define TODC_TYPE_DS1747_NVRAM_ADDR_REG 0
#define TODC_TYPE_DS1747_NVRAM_DATA_REG 0
#define TODC_TYPE_DS17285_NVRAM_SIZE (0x1000-0x80) /* 4Kx8 NVRAM (minus RTC regs) */
#define TODC_TYPE_DS17285_SW_FLAGS TODC_FLAG_2_LEVEL_NVRAM
#define TODC_TYPE_DS17285_SECONDS (TODC_TYPE_DS17285_NVRAM_SIZE + 0x00)
#define TODC_TYPE_DS17285_ALARM_SECONDS (TODC_TYPE_DS17285_NVRAM_SIZE + 0x01)
#define TODC_TYPE_DS17285_MINUTES (TODC_TYPE_DS17285_NVRAM_SIZE + 0x02)
#define TODC_TYPE_DS17285_ALARM_MINUTES (TODC_TYPE_DS17285_NVRAM_SIZE + 0x03)
#define TODC_TYPE_DS17285_HOURS (TODC_TYPE_DS17285_NVRAM_SIZE + 0x04)
#define TODC_TYPE_DS17285_ALARM_HOUR (TODC_TYPE_DS17285_NVRAM_SIZE + 0x05)
#define TODC_TYPE_DS17285_DOW (TODC_TYPE_DS17285_NVRAM_SIZE + 0x06)
#define TODC_TYPE_DS17285_DOM (TODC_TYPE_DS17285_NVRAM_SIZE + 0x07)
#define TODC_TYPE_DS17285_MONTH (TODC_TYPE_DS17285_NVRAM_SIZE + 0x08)
#define TODC_TYPE_DS17285_YEAR (TODC_TYPE_DS17285_NVRAM_SIZE + 0x09)
#define TODC_TYPE_DS17285_CNTL_A (TODC_TYPE_DS17285_NVRAM_SIZE + 0x0A)
#define TODC_TYPE_DS17285_CNTL_B (TODC_TYPE_DS17285_NVRAM_SIZE + 0x0B)
#define TODC_TYPE_DS17285_CNTL_C (TODC_TYPE_DS17285_NVRAM_SIZE + 0x0C)
#define TODC_TYPE_DS17285_CNTL_D (TODC_TYPE_DS17285_NVRAM_SIZE + 0x0D)
#define TODC_TYPE_DS17285_WATCHDOG 0
#define TODC_TYPE_DS17285_INTERRUPTS 0
#define TODC_TYPE_DS17285_ALARM_DATE 0
#define TODC_TYPE_DS17285_CENTURY 0
#define TODC_TYPE_DS17285_FLAGS 0
#define TODC_TYPE_DS17285_NVRAM_ADDR_REG 0x50
#define TODC_TYPE_DS17285_NVRAM_DATA_REG 0x53
#define TODC_TYPE_MC146818_NVRAM_SIZE 0 /* XXXX */
#define TODC_TYPE_MC146818_SW_FLAGS 0
#define TODC_TYPE_MC146818_YEAR 0x09
#define TODC_TYPE_MC146818_MONTH 0x08
#define TODC_TYPE_MC146818_DOM 0x07 /* Day of Month */
#define TODC_TYPE_MC146818_DOW 0x06 /* Day of Week */
#define TODC_TYPE_MC146818_HOURS 0x04
#define TODC_TYPE_MC146818_MINUTES 0x02
#define TODC_TYPE_MC146818_SECONDS 0x00
#define TODC_TYPE_MC146818_CNTL_B 0x0a
#define TODC_TYPE_MC146818_CNTL_A 0x0b /* control_a R/W regs */
#define TODC_TYPE_MC146818_WATCHDOG 0
#define TODC_TYPE_MC146818_INTERRUPTS 0x0c
#define TODC_TYPE_MC146818_ALARM_DATE 0xff
#define TODC_TYPE_MC146818_ALARM_HOUR 0x05
#define TODC_TYPE_MC146818_ALARM_MINUTES 0x03
#define TODC_TYPE_MC146818_ALARM_SECONDS 0x01
#define TODC_TYPE_MC146818_CENTURY 0xff
#define TODC_TYPE_MC146818_FLAGS 0xff
#define TODC_TYPE_MC146818_NVRAM_ADDR_REG 0
#define TODC_TYPE_MC146818_NVRAM_DATA_REG 0
#define TODC_TYPE_PC97307_NVRAM_SIZE 0 /* No NVRAM? */
#define TODC_TYPE_PC97307_SW_FLAGS 0
#define TODC_TYPE_PC97307_YEAR 0x09
#define TODC_TYPE_PC97307_MONTH 0x08
#define TODC_TYPE_PC97307_DOM 0x07 /* Day of Month */
#define TODC_TYPE_PC97307_DOW 0x06 /* Day of Week */
#define TODC_TYPE_PC97307_HOURS 0x04
#define TODC_TYPE_PC97307_MINUTES 0x02
#define TODC_TYPE_PC97307_SECONDS 0x00
#define TODC_TYPE_PC97307_CNTL_B 0x0a
#define TODC_TYPE_PC97307_CNTL_A 0x0b /* control_a R/W regs */
#define TODC_TYPE_PC97307_WATCHDOG 0x0c
#define TODC_TYPE_PC97307_INTERRUPTS 0x0d
#define TODC_TYPE_PC97307_ALARM_DATE 0xff
#define TODC_TYPE_PC97307_ALARM_HOUR 0x05
#define TODC_TYPE_PC97307_ALARM_MINUTES 0x03
#define TODC_TYPE_PC97307_ALARM_SECONDS 0x01
#define TODC_TYPE_PC97307_CENTURY 0xff
#define TODC_TYPE_PC97307_FLAGS 0xff
#define TODC_TYPE_PC97307_NVRAM_ADDR_REG 0
#define TODC_TYPE_PC97307_NVRAM_DATA_REG 0
/*
* Define macros to allocate and init the todc_info_t table that will
* be used by the todc_time.c routines.
*/
#define TODC_ALLOC() \
static todc_info_t todc_info_alloc; \
todc_info_t *todc_info = &todc_info_alloc;
#define TODC_INIT(clock_type, as0, as1, data, bits) { \
todc_info->rtc_type = clock_type; \
\
todc_info->nvram_as0 = (unsigned int)(as0); \
todc_info->nvram_as1 = (unsigned int)(as1); \
todc_info->nvram_data = (unsigned int)(data); \
\
todc_info->as0_bits = (bits); \
\
todc_info->nvram_size = clock_type ##_NVRAM_SIZE; \
todc_info->sw_flags = clock_type ##_SW_FLAGS; \
\
todc_info->year = clock_type ##_YEAR; \
todc_info->month = clock_type ##_MONTH; \
todc_info->day_of_month = clock_type ##_DOM; \
todc_info->day_of_week = clock_type ##_DOW; \
todc_info->hours = clock_type ##_HOURS; \
todc_info->minutes = clock_type ##_MINUTES; \
todc_info->seconds = clock_type ##_SECONDS; \
todc_info->control_b = clock_type ##_CNTL_B; \
todc_info->control_a = clock_type ##_CNTL_A; \
todc_info->watchdog = clock_type ##_WATCHDOG; \
todc_info->interrupts = clock_type ##_INTERRUPTS; \
todc_info->alarm_date = clock_type ##_ALARM_DATE; \
todc_info->alarm_hour = clock_type ##_ALARM_HOUR; \
todc_info->alarm_minutes = clock_type ##_ALARM_MINUTES; \
todc_info->alarm_seconds = clock_type ##_ALARM_SECONDS; \
todc_info->century = clock_type ##_CENTURY; \
todc_info->flags = clock_type ##_FLAGS; \
\
todc_info->nvram_addr_reg = clock_type ##_NVRAM_ADDR_REG; \
todc_info->nvram_data_reg = clock_type ##_NVRAM_DATA_REG; \
}
extern todc_info_t *todc_info;
unsigned char todc_direct_read_val(int addr);
void todc_direct_write_val(int addr, unsigned char val);
unsigned char todc_m48txx_read_val(int addr);
void todc_m48txx_write_val(int addr, unsigned char val);
unsigned char todc_mc146818_read_val(int addr);
void todc_mc146818_write_val(int addr, unsigned char val);
long todc_time_init(void);
void todc_get_rtc_time(struct rtc_time *);
int todc_set_rtc_time(struct rtc_time *);
void todc_calibrate_decr(void);
#endif /* __PPC_KERNEL_TODC_H */
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