diff options
Diffstat (limited to 'cpu/arm920t/interrupts.c')
| -rw-r--r-- | cpu/arm920t/interrupts.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/cpu/arm920t/interrupts.c b/cpu/arm920t/interrupts.c index 195fb01..dd944fb 100644 --- a/cpu/arm920t/interrupts.c +++ b/cpu/arm920t/interrupts.c @@ -43,7 +43,12 @@ extern void reset_cpu(ulong addr); int timer_load_val = 0; /* macro to read the 16 bit timer */ -#define READ_TIMER (rTCNTO4 & 0xffff) +static inline ulong READ_TIMER(void) +{ + S3C24X0_TIMERS * const timers = S3C24X0_GetBase_TIMERS(); + + return (timers->TCNTO4 & 0xffff); +} #ifdef CONFIG_USE_IRQ /* enable IRQ interrupts */ @@ -184,9 +189,11 @@ static ulong lastdec; int interrupt_init (void) { + S3C24X0_TIMERS * const timers = S3C24X0_GetBase_TIMERS(); + /* use PWM Timer 4 because it has no output */ /* prescaler for Timer 4 is 16 */ - rTCFG0 = 0x0f00; + timers->TCFG0 = 0x0f00; if (timer_load_val == 0) { /* @@ -197,11 +204,11 @@ int interrupt_init (void) timer_load_val = get_PCLK()/(2 * 16 * 100); } /* load value for 10 ms timeout */ - lastdec = rTCNTB4 = timer_load_val; + lastdec = timers->TCNTB4 = timer_load_val; /* auto load, manual update of Timer 4 */ - rTCON = (rTCON & ~0x0700000) | 0x600000; + timers->TCON = (timers->TCON & ~0x0700000) | 0x600000; /* auto load, start Timer 4 */ - rTCON = (rTCON & ~0x0700000) | 0x500000; + timers->TCON = (timers->TCON & ~0x0700000) | 0x500000; timestamp = 0; return (0); @@ -243,13 +250,13 @@ void udelay (unsigned long usec) void reset_timer_masked (void) { /* reset time */ - lastdec = READ_TIMER; + lastdec = READ_TIMER(); timestamp = 0; } ulong get_timer_masked (void) { - ulong now = READ_TIMER; + ulong now = READ_TIMER(); if (lastdec >= now) { /* normal mode */ |