diff options
Diffstat (limited to 'arch/arm/cpu/arm720t/interrupts.c')
| -rw-r--r-- | arch/arm/cpu/arm720t/interrupts.c | 83 |
1 files changed, 2 insertions, 81 deletions
diff --git a/arch/arm/cpu/arm720t/interrupts.c b/arch/arm/cpu/arm720t/interrupts.c index e3b59fef0..998efd844 100644 --- a/arch/arm/cpu/arm720t/interrupts.c +++ b/arch/arm/cpu/arm720t/interrupts.c @@ -31,20 +31,11 @@ #include <asm/proc-armv/ptrace.h> #include <asm/hardware.h> -#ifndef CONFIG_NETARM /* we always count down the max. */ #define TIMER_LOAD_VAL 0xffff /* macro to read the 16 bit timer */ #define READ_TIMER (IO_TC1D & 0xffff) -#else -#define IRQEN (*(volatile unsigned int *)(NETARM_GEN_MODULE_BASE + NETARM_GEN_INTR_ENABLE)) -#define TM2CTRL (*(volatile unsigned int *)(NETARM_GEN_MODULE_BASE + NETARM_GEN_TIMER2_CONTROL)) -#define TM2STAT (*(volatile unsigned int *)(NETARM_GEN_MODULE_BASE + NETARM_GEN_TIMER2_STATUS)) -#define TIMER_LOAD_VAL NETARM_GEN_TSTAT_CTC_MASK -#define READ_TIMER (TM2STAT & NETARM_GEN_TSTAT_CTC_MASK) -#endif - #ifdef CONFIG_USE_IRQ void do_irq (struct pt_regs *pt_regs) { @@ -65,18 +56,7 @@ static ulong lastdec; int timer_init (void) { -#if defined(CONFIG_NETARM) - /* disable all interrupts */ - IRQEN = 0; - - /* operate timer 2 in non-prescale mode */ - TM2CTRL = ( NETARM_GEN_TIMER_SET_HZ(CONFIG_SYS_HZ) | - NETARM_GEN_TCTL_ENABLE | - NETARM_GEN_TCTL_INIT_COUNT(TIMER_LOAD_VAL)); - - /* set timer 2 counter */ - lastdec = TIMER_LOAD_VAL; -#elif defined(CONFIG_TEGRA) +#if defined(CONFIG_TEGRA) /* No timer routines for tegra as yet */ lastdec = 0; #else @@ -94,66 +74,7 @@ int timer_init (void) */ -#if defined(CONFIG_NETARM) - -ulong get_timer (ulong base) -{ - return get_timer_masked () - base; -} - -void __udelay (unsigned long usec) -{ - ulong tmo; - - tmo = usec / 1000; - tmo *= CONFIG_SYS_HZ; - tmo /= 1000; - - tmo += get_timer (0); - - while (get_timer_masked () < tmo) -} - -ulong get_timer_masked (void) -{ - ulong now = READ_TIMER; - - if (lastdec >= now) { - /* normal mode */ - timestamp += lastdec - now; - } else { - /* we have an overflow ... */ - timestamp += lastdec + TIMER_LOAD_VAL - now; - } - lastdec = now; - - return timestamp; -} - -void udelay_masked (unsigned long usec) -{ - ulong tmo; - ulong endtime; - signed long diff; - - if (usec >= 1000) { - tmo = usec / 1000; - tmo *= CONFIG_SYS_HZ; - tmo /= 1000; - } else { - tmo = usec * CONFIG_SYS_HZ; - tmo /= (1000*1000); - } - - endtime = get_timer_masked () + tmo; - - do { - ulong now = get_timer_masked (); - diff = endtime - now; - } while (diff >= 0); -} - -#elif defined(CONFIG_INTEGRATOR) && defined(CONFIG_ARCH_INTEGRATOR) +#if defined(CONFIG_INTEGRATOR) && defined(CONFIG_ARCH_INTEGRATOR) /* No timer routines for IntegratorAP/CM720T as yet */ #elif defined(CONFIG_TEGRA) /* No timer routines for tegra as yet */ |