6b13f685e
 김민수
BSP 최초 추가
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
/*
* 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/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 */
u32 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(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();
}
|