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author | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
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committer | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
commit | 97327692361306d1e6259021bc425e32832fdb50 (patch) | |
tree | fe9088f3248ec61e24f404f21b9793cb644b7f01 /arch/m68k/sun3x/time.c | |
parent | 2d05a8f663478a44e088d122e0d62109bbc801d0 (diff) | |
parent | a3a8b90b61e21be3dde9101c4e86c881e0f06210 (diff) | |
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dirty fix to merging
Diffstat (limited to 'arch/m68k/sun3x/time.c')
-rw-r--r-- | arch/m68k/sun3x/time.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/arch/m68k/sun3x/time.c b/arch/m68k/sun3x/time.c new file mode 100644 index 00000000..1d0a7248 --- /dev/null +++ b/arch/m68k/sun3x/time.c @@ -0,0 +1,102 @@ +/* + * 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 */ +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(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(); +} |