diff options
Diffstat (limited to 'cpu/arm720t/interrupts.c')
| -rw-r--r-- | cpu/arm720t/interrupts.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/cpu/arm720t/interrupts.c b/cpu/arm720t/interrupts.c index b1ee188ff1d..0291193e832 100644 --- a/cpu/arm720t/interrupts.c +++ b/cpu/arm720t/interrupts.c @@ -30,14 +30,24 @@ #include <clps7111.h> #include <asm/proc-armv/ptrace.h> +#ifdef CONFIG_NETARM +#include <asm/arch/netarm_registers.h> +#endif extern void reset_cpu(ulong addr); +#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 /* enable IRQ/FIQ interrupts */ @@ -177,6 +187,18 @@ static ulong lastdec; int interrupt_init (void) { +#ifdef CONFIG_NETARM + /* disable all interrupts */ + IRQEN = 0; + + /* operate timer 2 in non-prescale mode */ + TM2CTRL = ( NETARM_GEN_TIMER_SET_HZ(CFG_HZ) | + NETARM_GEN_TCTL_ENABLE | + NETARM_GEN_TCTL_INIT_COUNT(TIMER_LOAD_VAL)); + + /* set timer 2 counter */ + lastdec = TIMER_LOAD_VAL; +#else /* disable all interrupts */ IO_INTMR1 = 0; @@ -188,6 +210,7 @@ int interrupt_init (void) /* set timer 1 counter */ lastdec = IO_TC1D = TIMER_LOAD_VAL; +#endif timestamp = 0; return (0); |