diff options
Diffstat (limited to 'arch/sparc/cpu/leon2/cpu_init.c')
| -rw-r--r-- | arch/sparc/cpu/leon2/cpu_init.c | 45 |
1 files changed, 1 insertions, 44 deletions
diff --git a/arch/sparc/cpu/leon2/cpu_init.c b/arch/sparc/cpu/leon2/cpu_init.c index b4d91e5..9dfb99c 100644 --- a/arch/sparc/cpu/leon2/cpu_init.c +++ b/arch/sparc/cpu/leon2/cpu_init.c @@ -14,9 +14,6 @@ #include <config.h> -#define TIMER_BASE_CLK 1000000 -#define US_PER_TICK (1000000 / CONFIG_SYS_HZ) - DECLARE_GLOBAL_DATA_PTR; /* @@ -77,48 +74,8 @@ int cpu_init_r(void) return 0; } -/* Uses Timer 0 to get accurate - * pauses. Max 2 raised to 32 ticks - * - */ -void cpu_wait_ticks(unsigned long ticks) -{ - unsigned long start = get_timer(0); - while (get_timer(start) < ticks) ; -} - -/* initiate and setup timer0 interrupt to configured HZ. Base clock is 1MHz. - * Return irq number for timer int or a negative number for - * dealing with self - */ -int timer_interrupt_init_cpu(void) -{ - LEON2_regs *leon2 = (LEON2_regs *) LEON2_PREGS; - - /* SYS_HZ ticks per second */ - leon2->Timer_Counter_1 = 0; - leon2->Timer_Reload_1 = (TIMER_BASE_CLK / CONFIG_SYS_HZ) - 1; - leon2->Timer_Control_1 = - (LEON2_TIMER_CTRL_EN | LEON2_TIMER_CTRL_RS | LEON2_TIMER_CTRL_LD); - - return LEON2_TIMER1_IRQNO; -} - -/* - * This function is intended for SHORT delays only. +/* initiate and setup timer0 to configured HZ. Base clock is 1MHz. */ -unsigned long cpu_usec2ticks(unsigned long usec) -{ - if (usec < US_PER_TICK) - return 1; - return usec / US_PER_TICK; -} - -unsigned long cpu_ticks2usec(unsigned long ticks) -{ - return ticks * US_PER_TICK; -} - int timer_init(void) { LEON2_regs *leon2 = (LEON2_regs *)LEON2_PREGS; |