/* * linux/arch/m68k/sun3x/time.c * * Sun3x-specific time handling */ #include <linux/types.h> #include <linux/kd.h> #include <linux/init.h> #include <linux/sched.h> #include <linux/kernel_stat.h> #include <linux/interrupt.h> #include <linux/rtc.h> #include <linux/bcd.h> #include <asm/irq.h> #include <asm/io.h> #include <asm/system.h> #include <asm/traps.h> #include <asm/sun3x.h> #include <asm/sun3ints.h> #include <asm/rtc.h> #include "time.h" #define M_CONTROL 0xf8 #define M_SEC 0xf9 #define M_MIN 0xfa #define M_HOUR 0xfb #define M_DAY 0xfc #define M_DATE 0xfd #define M_MONTH 0xfe #define M_YEAR 0xff #define C_WRITE 0x80 #define C_READ 0x40 #define C_SIGN 0x20 #define C_CALIB 0x1f int sun3x_hwclk(int set, struct rtc_time *t) { volatile struct mostek_dt *h = (struct mostek_dt *)(SUN3X_EEPROM+M_CONTROL); unsigned long flags; local_irq_save(flags); if(set) { h->csr |= C_WRITE; h->sec = BIN2BCD(t->tm_sec); h->min = BIN2BCD(t->tm_min); h->hour = BIN2BCD(t->tm_hour); h->wday = BIN2BCD(t->tm_wday); h->mday = BIN2BCD(t->tm_mday); h->month = BIN2BCD(t->tm_mon); h->year = BIN2BCD(t->tm_year); h->csr &= ~C_WRITE; } else { h->csr |= C_READ; t->tm_sec = BCD2BIN(h->sec); t->tm_min = BCD2BIN(h->min); t->tm_hour = BCD2BIN(h->hour); t->tm_wday = BCD2BIN(h->wday); t->tm_mday = BCD2BIN(h->mday); t->tm_mon = BCD2BIN(h->month); t->tm_year = BCD2BIN(h->year); h->csr &= ~C_READ; } local_irq_restore(flags); return 0; } /* Not much we can do here */ unsigned long sun3x_gettimeoffset (void) { return 0L; } #if 0 static void sun3x_timer_tick(int irq, void *dev_id, struct pt_regs *regs) { void (*vector)(int, void *, struct pt_regs *) = dev_id; /* Clear the pending interrupt - pulse the enable line low */ disable_irq(5); enable_irq(5); vector(irq, NULL, regs); } #endif void __init sun3x_sched_init(irqreturn_t (*vector)(int, void *, struct pt_regs *)) { sun3_disable_interrupts(); /* Pulse enable low to get the clock started */ sun3_disable_irq(5); sun3_enable_irq(5); sun3_enable_interrupts(); }