endian byte order. These modes require different kernels. Say Y if
your machine is little endian, N if it's a big endian machine.
-# The SH7750 RTC module is disabled in the Dreamcast
-config SH_RTC
- bool
- depends on !SH_DREAMCAST && !SH_SATURN && !SH_7300_SOLUTION_ENGINE && \
- !SH_73180_SOLUTION_ENGINE && !SH_LANDISK && \
- !SH_R7780RP && !SH_SHMIN
- default y
- help
- Selecting this option will allow the Linux kernel to emulate
- PC's RTC.
-
- If unsure, say N.
-
config SH_FPU
bool "FPU support"
depends on !CPU_SH3
#include <linux/mc146818rtc.h>
#include <asm/io.h>
-/****************************************************************************/
-
-static int use_ds1302 = 0;
+static int use_ds1302;
/****************************************************************************/
/*
unsigned int val;
unsigned long flags;
-#if 0
- printk("SnapGear RTC: ds1302_readbyte(addr=%x)\n", addr);
-#endif
-
local_irq_save(flags);
set_dirp(get_dirp() | RTC_RESET | RTC_IODATA | RTC_SCLK);
set_dp(get_dp() & ~(RTC_RESET | RTC_IODATA | RTC_SCLK));
{
unsigned long flags;
-#if 0
- printk("SnapGear RTC: ds1302_writebyte(addr=%x)\n", addr);
-#endif
-
local_irq_save(flags);
set_dirp(get_dirp() | RTC_RESET | RTC_IODATA | RTC_SCLK);
set_dp(get_dp() & ~(RTC_RESET | RTC_IODATA | RTC_SCLK));
if (use_ds1302) {
rtc_sh_get_time = snapgear_rtc_gettimeofday;
rtc_sh_set_time = snapgear_rtc_settimeofday;
- } else {
- rtc_sh_get_time = sh_rtc_gettimeofday;
- rtc_sh_set_time = sh_rtc_settimeofday;
}
printk("SnapGear RTC: using %s rtc.\n", use_ds1302 ? "ds1302" : "internal");
{
unsigned int sec, min, hr, day, mon, yr;
- if (!use_ds1302) {
- sh_rtc_gettimeofday(ts);
+ if (!use_ds1302)
return;
- }
sec = bcd2int(ds1302_readbyte(RTC_ADDR_SEC));
min = bcd2int(ds1302_readbyte(RTC_ADDR_MIN));
unsigned long nowtime;
if (!use_ds1302)
- return sh_rtc_settimeofday(secs);
+ return 0;
/*
* This is called direct from the kernel timer handling code.
nowtime = secs;
-#if 1
- printk("SnapGear RTC: snapgear_rtc_settimeofday(nowtime=%ld)\n", nowtime);
-#endif
-
/* STOP RTC */
ds1302_writebyte(RTC_ADDR_SEC, ds1302_readbyte(RTC_ADDR_SEC) | 0x80);
default: break;
}
}
-
-/****************************************************************************/
obj-$(CONFIG_CPU_SH3) += sh3/
obj-$(CONFIG_CPU_SH4) += sh4/
-obj-$(CONFIG_SH_RTC) += rtc.o
obj-$(CONFIG_UBC_WAKEUP) += ubc.o
obj-$(CONFIG_SH_ADC) += adc.o
#ifndef CONFIG_CPU_SUBTYPE_SH7780
make_ipr_irq(TIMER_IRQ, TIMER_IPR_ADDR, TIMER_IPR_POS, TIMER_PRIORITY);
make_ipr_irq(TIMER1_IRQ, TIMER1_IPR_ADDR, TIMER1_IPR_POS, TIMER1_PRIORITY);
-#if defined(CONFIG_SH_RTC)
+#ifdef RTC_IRQ
make_ipr_irq(RTC_IRQ, RTC_IPR_ADDR, RTC_IPR_POS, RTC_PRIORITY);
#endif
+++ /dev/null
-/*
- * linux/arch/sh/kernel/rtc.c -- SH3 / SH4 on-chip RTC support
- *
- * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
- * Copyright (C) 1999 Tetsuya Okada & Niibe Yutaka
- */
-
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/time.h>
-#include <linux/bcd.h>
-#include <asm/io.h>
-#include <asm/rtc.h>
-
-void sh_rtc_gettimeofday(struct timespec *ts)
-{
- unsigned int sec128, sec, sec2, min, hr, wk, day, mon, yr, yr100, cf_bit;
- unsigned long flags;
-
- again:
- do {
- local_irq_save(flags);
- ctrl_outb(0, RCR1); /* Clear CF-bit */
- sec128 = ctrl_inb(R64CNT);
- sec = ctrl_inb(RSECCNT);
- min = ctrl_inb(RMINCNT);
- hr = ctrl_inb(RHRCNT);
- wk = ctrl_inb(RWKCNT);
- day = ctrl_inb(RDAYCNT);
- mon = ctrl_inb(RMONCNT);
-#if defined(CONFIG_CPU_SH4)
- yr = ctrl_inw(RYRCNT);
- yr100 = (yr >> 8);
- yr &= 0xff;
-#else
- yr = ctrl_inb(RYRCNT);
- yr100 = (yr == 0x99) ? 0x19 : 0x20;
-#endif
- sec2 = ctrl_inb(R64CNT);
- cf_bit = ctrl_inb(RCR1) & RCR1_CF;
- local_irq_restore(flags);
- } while (cf_bit != 0 || ((sec128 ^ sec2) & RTC_BIT_INVERTED) != 0);
-
- BCD_TO_BIN(yr100);
- BCD_TO_BIN(yr);
- BCD_TO_BIN(mon);
- BCD_TO_BIN(day);
- BCD_TO_BIN(hr);
- BCD_TO_BIN(min);
- BCD_TO_BIN(sec);
-
- if (yr > 99 || mon < 1 || mon > 12 || day > 31 || day < 1 ||
- hr > 23 || min > 59 || sec > 59) {
- printk(KERN_ERR
- "SH RTC: invalid value, resetting to 1 Jan 2000\n");
- local_irq_save(flags);
- ctrl_outb(RCR2_RESET, RCR2); /* Reset & Stop */
- ctrl_outb(0, RSECCNT);
- ctrl_outb(0, RMINCNT);
- ctrl_outb(0, RHRCNT);
- ctrl_outb(6, RWKCNT);
- ctrl_outb(1, RDAYCNT);
- ctrl_outb(1, RMONCNT);
-#if defined(CONFIG_CPU_SH4)
- ctrl_outw(0x2000, RYRCNT);
-#else
- ctrl_outb(0, RYRCNT);
-#endif
- ctrl_outb(RCR2_RTCEN|RCR2_START, RCR2); /* Start */
- goto again;
- }
-
-#if RTC_BIT_INVERTED != 0
- if ((sec128 & RTC_BIT_INVERTED))
- sec--;
-#endif
-
- ts->tv_sec = mktime(yr100 * 100 + yr, mon, day, hr, min, sec);
- ts->tv_nsec = ((sec128 * 1000000) / 128) * 1000;
-}
-
-/*
- * Changed to only care about tv_sec, and not the full timespec struct
- * (i.e. tv_nsec). It can easily be switched to timespec for future cpus
- * that support setting usec or nsec RTC values.
- */
-int sh_rtc_settimeofday(const time_t secs)
-{
- int retval = 0;
- int real_seconds, real_minutes, cmos_minutes;
- unsigned long flags;
-
- local_irq_save(flags);
- ctrl_outb(RCR2_RESET, RCR2); /* Reset pre-scaler & stop RTC */
-
- cmos_minutes = ctrl_inb(RMINCNT);
- BCD_TO_BIN(cmos_minutes);
-
- /*
- * since we're only adjusting minutes and seconds,
- * don't interfere with hour overflow. This avoids
- * messing with unknown time zones but requires your
- * RTC not to be off by more than 15 minutes
- */
- real_seconds = secs % 60;
- real_minutes = secs / 60;
- if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1)
- real_minutes += 30; /* correct for half hour time zone */
- real_minutes %= 60;
-
- if (abs(real_minutes - cmos_minutes) < 30) {
- BIN_TO_BCD(real_seconds);
- BIN_TO_BCD(real_minutes);
- ctrl_outb(real_seconds, RSECCNT);
- ctrl_outb(real_minutes, RMINCNT);
- } else {
- printk(KERN_WARNING
- "set_rtc_time: can't update from %d to %d\n",
- cmos_minutes, real_minutes);
- retval = -1;
- }
-
- ctrl_outb(RCR2_RTCEN|RCR2_START, RCR2); /* Start RTC */
- local_irq_restore(flags);
-
- return retval;
-}
*
* Copyright (C) 1999 Tetsuya Okada & Niibe Yutaka
* Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
- * Copyright (C) 2002, 2003, 2004, 2005 Paul Mundt
+ * Copyright (C) 2002 - 2006 Paul Mundt
* Copyright (C) 2002 M. R. Brown <mrbrown@linux-sh.org>
*
* Some code taken from i386 version.
* Copyright (C) 1991, 1992, 1995 Linus Torvalds
*/
-
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
DEFINE_SPINLOCK(rtc_lock);
EXPORT_SYMBOL(rtc_lock);
-/* XXX: Can we initialize this in a routine somewhere? Dreamcast doesn't want
- * these routines anywhere... */
-#ifdef CONFIG_SH_RTC
-void (*rtc_sh_get_time)(struct timespec *) = sh_rtc_gettimeofday;
-int (*rtc_sh_set_time)(const time_t) = sh_rtc_settimeofday;
-#else
-void (*rtc_sh_get_time)(struct timespec *);
-int (*rtc_sh_set_time)(const time_t);
-#endif
+/* Dummy RTC ops */
+static void null_rtc_get_time(struct timespec *tv)
+{
+ tv->tv_sec = mktime(2000, 1, 1, 0, 0, 0);
+ tv->tv_nsec = 0;
+}
+
+static int null_rtc_set_time(const time_t secs)
+{
+ return 0;
+}
+
+void (*rtc_sh_get_time)(struct timespec *) = null_rtc_get_time;
+int (*rtc_sh_set_time)(const time_t) = null_rtc_set_time;
/*
* Scheduler clock - returns current time in nanosec units.
tv->tv_sec = sec;
tv->tv_usec = usec;
}
-
EXPORT_SYMBOL(do_gettimeofday);
int do_settimeofday(struct timespec *tv)
return 0;
}
-
EXPORT_SYMBOL(do_settimeofday);
/* last time the RTC clock got updated */
sys_timer->dev.cls = &timer_sysclass;
return sysdev_register(&sys_timer->dev);
}
-
device_initcall(timer_init_sysfs);
void (*board_time_init)(void);
clk_init();
- if (rtc_sh_get_time) {
- rtc_sh_get_time(&xtime);
- } else {
- xtime.tv_sec = mktime(2000, 1, 1, 0, 0, 0);
- xtime.tv_nsec = 0;
- }
-
- set_normalized_timespec(&wall_to_monotonic,
- -xtime.tv_sec, -xtime.tv_nsec);
+ rtc_sh_get_time(&xtime);
+ set_normalized_timespec(&wall_to_monotonic,
+ -xtime.tv_sec, -xtime.tv_nsec);
/*
* Find the timer to use as the system timer, it will be
config RTC
tristate "Enhanced Real Time Clock Support"
- depends on !PPC && !PARISC && !IA64 && !M68K && (!SPARC || PCI) && !FRV && !ARM
+ depends on !PPC && !PARISC && !IA64 && !M68K && (!SPARC || PCI) && !FRV && !ARM && !SUPERH
---help---
If you say Y here and create a character special file /dev/rtc with
major number 10 and minor number 135 using mknod ("man mknod"), you
#ifndef _ASM_MC146818RTC_H
#define _ASM_MC146818RTC_H
-#ifdef CONFIG_SH_MPC1211
-#undef _ASM_MC146818RTC_H
-#undef RTC_IRQ
-#include <asm/mpc1211/mc146818rtc.h>
-#else
-
-#include <asm/rtc.h>
-
-#define RTC_ALWAYS_BCD 1
-
-/* FIXME:RTC Interrupt feature is not implemented yet. */
-#undef RTC_IRQ
-#define RTC_IRQ 0
-
-#if defined(CONFIG_CPU_SH3)
-#define RTC_PORT(n) (R64CNT+(n)*2)
-#define CMOS_READ(addr) __CMOS_READ(addr,b)
-#define CMOS_WRITE(val,addr) __CMOS_WRITE(val,addr,b)
-
-#elif defined(CONFIG_SH_SECUREEDGE5410)
-#include <asm/snapgear.h>
-
-#define RTC_PORT(n) SECUREEDGE_IOPORT_ADDR
-#define CMOS_READ(addr) secureedge5410_cmos_read(addr)
-#define CMOS_WRITE(val,addr) secureedge5410_cmos_write(val,addr)
-extern unsigned char secureedge5410_cmos_read(int addr);
-extern void secureedge5410_cmos_write(unsigned char val, int addr);
-
-#elif defined(CONFIG_CPU_SH4)
-#define RTC_PORT(n) (R64CNT+(n)*4)
-#define CMOS_READ(addr) __CMOS_READ(addr,w)
-#define CMOS_WRITE(val,addr) __CMOS_WRITE(val,addr,w)
-#endif
-
-#define __CMOS_READ(addr, s) ({ \
- unsigned char val=0, rcr1, rcr2, r64cnt, retry; \
- switch(addr) { \
- case RTC_SECONDS: \
- val = ctrl_inb(RSECCNT); \
- break; \
- case RTC_SECONDS_ALARM: \
- val = ctrl_inb(RSECAR); \
- break; \
- case RTC_MINUTES: \
- val = ctrl_inb(RMINCNT); \
- break; \
- case RTC_MINUTES_ALARM: \
- val = ctrl_inb(RMINAR); \
- break; \
- case RTC_HOURS: \
- val = ctrl_inb(RHRCNT); \
- break; \
- case RTC_HOURS_ALARM: \
- val = ctrl_inb(RHRAR); \
- break; \
- case RTC_DAY_OF_WEEK: \
- val = ctrl_inb(RWKCNT); \
- break; \
- case RTC_DAY_OF_MONTH: \
- val = ctrl_inb(RDAYCNT); \
- break; \
- case RTC_MONTH: \
- val = ctrl_inb(RMONCNT); \
- break; \
- case RTC_YEAR: \
- val = ctrl_in##s(RYRCNT); \
- break; \
- case RTC_REG_A: /* RTC_FREQ_SELECT */ \
- rcr2 = ctrl_inb(RCR2); \
- val = (rcr2 & RCR2_PESMASK) >> 4; \
- rcr1 = ctrl_inb(RCR1); \
- rcr1 = (rcr1 & (RCR1_CIE | RCR1_AIE)) | RCR1_AF;\
- retry = 0; \
- do { \
- ctrl_outb(rcr1, RCR1); /* clear CF */ \
- r64cnt = ctrl_inb(R64CNT); \
- } while((ctrl_inb(RCR1) & RCR1_CF) && retry++ < 1000);\
- r64cnt ^= RTC_BIT_INVERTED; \
- if(r64cnt == 0x7f || r64cnt == 0) \
- val |= RTC_UIP; \
- break; \
- case RTC_REG_B: /* RTC_CONTROL */ \
- rcr1 = ctrl_inb(RCR1); \
- rcr2 = ctrl_inb(RCR2); \
- if(rcr1 & RCR1_CIE) val |= RTC_UIE; \
- if(rcr1 & RCR1_AIE) val |= RTC_AIE; \
- if(rcr2 & RCR2_PESMASK) val |= RTC_PIE; \
- if(!(rcr2 & RCR2_START))val |= RTC_SET; \
- val |= RTC_24H; \
- break; \
- case RTC_REG_C: /* RTC_INTR_FLAGS */ \
- rcr1 = ctrl_inb(RCR1); \
- rcr1 &= ~(RCR1_CF | RCR1_AF); \
- ctrl_outb(rcr1, RCR1); \
- rcr2 = ctrl_inb(RCR2); \
- rcr2 &= ~RCR2_PEF; \
- ctrl_outb(rcr2, RCR2); \
- break; \
- case RTC_REG_D: /* RTC_VALID */ \
- /* Always valid ... */ \
- val = RTC_VRT; \
- break; \
- default: \
- break; \
- } \
- val; \
-})
-
-#define __CMOS_WRITE(val, addr, s) ({ \
- unsigned char rcr1,rcr2; \
- switch(addr) { \
- case RTC_SECONDS: \
- ctrl_outb(val, RSECCNT); \
- break; \
- case RTC_SECONDS_ALARM: \
- ctrl_outb(val, RSECAR); \
- break; \
- case RTC_MINUTES: \
- ctrl_outb(val, RMINCNT); \
- break; \
- case RTC_MINUTES_ALARM: \
- ctrl_outb(val, RMINAR); \
- break; \
- case RTC_HOURS: \
- ctrl_outb(val, RHRCNT); \
- break; \
- case RTC_HOURS_ALARM: \
- ctrl_outb(val, RHRAR); \
- break; \
- case RTC_DAY_OF_WEEK: \
- ctrl_outb(val, RWKCNT); \
- break; \
- case RTC_DAY_OF_MONTH: \
- ctrl_outb(val, RDAYCNT); \
- break; \
- case RTC_MONTH: \
- ctrl_outb(val, RMONCNT); \
- break; \
- case RTC_YEAR: \
- ctrl_out##s((ctrl_in##s(RYRCNT) & 0xff00) | (val & 0xff), RYRCNT);\
- break; \
- case RTC_REG_A: /* RTC_FREQ_SELECT */ \
- rcr2 = ctrl_inb(RCR2); \
- if((val & RTC_DIV_CTL) == RTC_DIV_RESET2) \
- rcr2 |= RCR2_RESET; \
- ctrl_outb(rcr2, RCR2); \
- break; \
- case RTC_REG_B: /* RTC_CONTROL */ \
- rcr1 = (ctrl_inb(RCR1) & 0x99) | RCR1_AF; \
- if(val & RTC_AIE) rcr1 |= RCR1_AIE; \
- else rcr1 &= ~RCR1_AIE; \
- if(val & RTC_UIE) rcr1 |= RCR1_CIE; \
- else rcr1 &= ~RCR1_CIE; \
- ctrl_outb(rcr1, RCR1); \
- rcr2 = ctrl_inb(RCR2); \
- if(val & RTC_SET) rcr2 &= ~RCR2_START; \
- else rcr2 |= RCR2_START; \
- ctrl_outb(rcr2, RCR2); \
- break; \
- case RTC_REG_C: /* RTC_INTR_FLAGS */ \
- break; \
- case RTC_REG_D: /* RTC_VALID */ \
- break; \
- default: \
- break; \
- } \
-})
-
-#endif /* CONFIG_SH_MPC1211 */
#endif /* _ASM_MC146818RTC_H */
#ifndef _ASM_RTC_H
#define _ASM_RTC_H
-#ifdef __KERNEL__
-#include <asm/machvec.h>
-#include <asm/cpu/rtc.h>
-
-extern void sh_rtc_gettimeofday(struct timespec *ts);
-extern int sh_rtc_settimeofday(const time_t secs);
extern void (*board_time_init)(void);
extern void (*rtc_sh_get_time)(struct timespec *);
extern int (*rtc_sh_set_time)(const time_t);
-/* RCR1 Bits */
-#define RCR1_CF 0x80 /* Carry Flag */
-#define RCR1_CIE 0x10 /* Carry Interrupt Enable */
-#define RCR1_AIE 0x08 /* Alarm Interrupt Enable */
-#define RCR1_AF 0x01 /* Alarm Flag */
-
-/* RCR2 Bits */
-#define RCR2_PEF 0x80 /* PEriodic interrupt Flag */
-#define RCR2_PESMASK 0x70 /* Periodic interrupt Set */
-#define RCR2_RTCEN 0x08 /* ENable RTC */
-#define RCR2_ADJ 0x04 /* ADJustment (30-second) */
-#define RCR2_RESET 0x02 /* Reset bit */
-#define RCR2_START 0x01 /* Start bit */
-
-#endif /* __KERNEL__ */
#endif /* _ASM_RTC_H */
projects / linux-drm-fsl-dcu.git / commitdiff