diff options
Diffstat (limited to 'cpu/i386/sc520/sc520_timer.c')
| -rw-r--r-- | cpu/i386/sc520/sc520_timer.c | 31 |
1 files changed, 16 insertions, 15 deletions
diff --git a/cpu/i386/sc520/sc520_timer.c b/cpu/i386/sc520/sc520_timer.c index 2a3425b..23de14b 100644 --- a/cpu/i386/sc520/sc520_timer.c +++ b/cpu/i386/sc520/sc520_timer.c @@ -30,29 +30,29 @@ void sc520_timer_isr(void) { /* Ack the GP Timer Interrupt */ - write_mmcr_byte (SC520_GPTMRSTA, 0x02); + sc520_mmcr->gptmrsta = 0x02; } int timer_init(void) { /* Map GP Timer 1 to Master PIC IR0 */ - write_mmcr_byte (SC520_GPTMR1MAP, 0x01); + sc520_mmcr->gp_tmr_int_map[1] = 0x01; /* Disable GP Timers 1 & 2 - Allow configuration writes */ - write_mmcr_word (SC520_GPTMR1CTL, 0x4000); - write_mmcr_word (SC520_GPTMR2CTL, 0x4000); + sc520_mmcr->gptmr1ctl = 0x4000; + sc520_mmcr->gptmr2ctl = 0x4000; /* Reset GP Timers 1 & 2 */ - write_mmcr_word (SC520_GPTMR1CNT, 0x0000); - write_mmcr_word (SC520_GPTMR2CNT, 0x0000); + sc520_mmcr->gptmr1cnt = 0x0000; + sc520_mmcr->gptmr2cnt = 0x0000; /* Setup GP Timer 2 as a 100kHz (10us) prescaler */ - write_mmcr_word (SC520_GPTMR2MAXCMPA, 83); - write_mmcr_word (SC520_GPTMR2CTL, 0xc001); + sc520_mmcr->gptmr2maxcmpa = 83; + sc520_mmcr->gptmr2ctl = 0xc001; /* Setup GP Timer 1 as a 1000 Hz (1ms) interrupt generator */ - write_mmcr_word (SC520_GPTMR1MAXCMPA, 100); - write_mmcr_word (SC520_GPTMR1CTL, 0xe009); + sc520_mmcr->gptmr1maxcmpa = 100; + sc520_mmcr->gptmr1ctl = 0xe009; /* Register the SC520 specific timer interrupt handler */ register_timer_isr (sc520_timer_isr); @@ -62,7 +62,7 @@ int timer_init(void) unmask_irq (0); /* Clear the GP Timer 1 status register to get the show rolling*/ - write_mmcr_byte (SC520_GPTMRSTA, 0x02); + sc520_mmcr->gptmrsta = 0x02; return 0; } @@ -71,12 +71,13 @@ void udelay(unsigned long usec) { int m = 0; long u; + long temp; - read_mmcr_word (SC520_SWTMRMILLI); - read_mmcr_word (SC520_SWTMRMICRO); + temp = sc520_mmcr->swtmrmilli; + temp = sc520_mmcr->swtmrmicro; do { - m += read_mmcr_word (SC520_SWTMRMILLI); - u = read_mmcr_word (SC520_SWTMRMICRO) + (m * 1000); + m += sc520_mmcr->swtmrmilli; + u = sc520_mmcr->swtmrmicro + (m * 1000); } while (u < usec); } |