diff options
Diffstat (limited to 'cpu/arm926ejs/interrupts.c')
| -rw-r--r-- | cpu/arm926ejs/interrupts.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/cpu/arm926ejs/interrupts.c b/cpu/arm926ejs/interrupts.c index 6167933..10841fd 100644 --- a/cpu/arm926ejs/interrupts.c +++ b/cpu/arm926ejs/interrupts.c @@ -10,9 +10,12 @@ * Sysgo Real-Time Solutions, GmbH <www.elinos.com> * Alex Zuepke <azu@sysgo.de> * - * (C) Copyright 2002 + * (C) Copyright 2002-2004 * Gary Jennejohn, DENX Software Engineering, <gj@denx.de> * + * (C) Copyright 2004 + * Philippe Robin, ARM Ltd. <philippe.robin@arm.com> + * * See file CREDITS for list of people who contributed to this * project. * @@ -41,7 +44,15 @@ extern void reset_cpu(ulong addr); #define TIMER_LOAD_VAL 0xffffffff /* macro to read the 32 bit timer */ +#ifdef CONFIG_OMAP #define READ_TIMER (*(volatile ulong *)(CFG_TIMERBASE+8)) +#endif +#ifdef CONFIG_INTEGRATOR +#define READ_TIMER (*(volatile ulong *)(CFG_TIMERBASE+4)) +#endif +#ifdef CONFIG_VERSATILE +#define READ_TIMER (*(volatile ulong *)(CFG_TIMERBASE+4)) +#endif #ifdef CONFIG_USE_IRQ /* enable IRQ interrupts */ @@ -182,12 +193,26 @@ static ulong lastdec; /* nothing really to do with interrupts, just starts up a counter. */ int interrupt_init (void) { +#ifdef CONFIG_OMAP int32_t val; /* Start the decrementer ticking down from 0xffffffff */ *((int32_t *) (CFG_TIMERBASE + LOAD_TIM)) = TIMER_LOAD_VAL; val = MPUTIM_ST | MPUTIM_AR | MPUTIM_CLOCK_ENABLE | (CFG_PVT << MPUTIM_PTV_BIT); *((int32_t *) (CFG_TIMERBASE + CNTL_TIMER)) = val; +#endif /* CONFIG_OMAP */ +#ifdef CONFIG_INTEGRATOR + /* Load timer with initial value */ + *(volatile ulong *)(CFG_TIMERBASE + 0) = TIMER_LOAD_VAL; + /* Set timer to be enabled, free-running, no interrupts, 256 divider */ + *(volatile ulong *)(CFG_TIMERBASE + 8) = 0x8C; +#endif /* CONFIG_INTEGRATOR */ +#ifdef CONFIG_VERSATILE + *(volatile ulong *)(CFG_TIMERBASE + 0) = CFG_TIMER_RELOAD; /* TimerLoad */ + *(volatile ulong *)(CFG_TIMERBASE + 4) = CFG_TIMER_RELOAD; /* TimerValue */ + *(volatile ulong *)(CFG_TIMERBASE + 8) = 0x8C; + /* *(volatile ulong *)(CFG_TIMERBASE + 8) = CFG_TIMER_CTRL | 0x40; Periodic */ +#endif /* CONFIG_VERSATILE */ /* init the timestamp and lastdec value */ reset_timer_masked(); |