Release 4.14 arch/m68k/sun3x/time.c

// SPDX-License-Identifier: GPL-2.0
/*
 *  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/machdep.h>
#include <asm/traps.h>
#include <asm/sun3x.h>
#include <asm/sun3ints.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;
}
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Linus Torvalds
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Roman Zippel
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1
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Adrian Bunk
14
5.93%
1
25.00%
Geert Uytterhoeven
2
0.85%
1
25.00%
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236
100.00%
4
100.00%

/* Not much we can do here */


u32 sun3x_gettimeoffset(void)
{
    return 0L;
}

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Linus Torvalds (pre-git)
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90.00%
1
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Stephen Warren
1
10.00%
1
50.00%
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10
100.00%
2
100.00%

#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(irq_handler_t vector)
{

	sun3_disable_interrupts();


    /* Pulse enable low to get the clock started */
	sun3_disable_irq(5);
	sun3_enable_irq(5);
	sun3_enable_interrupts();
}
Contributors
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Linus Torvalds (pre-git)
18
69.23%
2
50.00%
Linus Torvalds
7
26.92%
1
25.00%
David Howells
1
3.85%
1
25.00%
Total
26
100.00%
4
100.00%

Overall Contributors
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Tokens
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Linus Torvalds
217
57.71%
1
7.69%
Linus Torvalds (pre-git)
106
28.19%
2
15.38%
Roman Zippel
20
5.32%
1
7.69%
Adrian Bunk
14
3.72%
1
7.69%
Geert Uytterhoeven
9
2.39%
3
23.08%
Arnd Bergmann
4
1.06%
1
7.69%
Andrew Morton
3
0.80%
1
7.69%
David Howells
1
0.27%
1
7.69%
Stephen Warren
1
0.27%
1
7.69%
Greg Kroah-Hartman
1
0.27%
1
7.69%
Total
376
100.00%
13
100.00%
Directory: arch/m68k/sun3x

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