diff options
Diffstat (limited to 'c/src/lib/libcpu/powerpc/mpc8260/clock/clock.c')
| -rw-r--r-- | c/src/lib/libcpu/powerpc/mpc8260/clock/clock.c | 32 |
1 files changed, 7 insertions, 25 deletions
diff --git a/c/src/lib/libcpu/powerpc/mpc8260/clock/clock.c b/c/src/lib/libcpu/powerpc/mpc8260/clock/clock.c index 23f7ed51d0..82c1a74050 100644 --- a/c/src/lib/libcpu/powerpc/mpc8260/clock/clock.c +++ b/c/src/lib/libcpu/powerpc/mpc8260/clock/clock.c @@ -25,7 +25,7 @@ * * Derived from c/src/lib/libcpu/hppa1_1/clock/clock.c: * - * COPYRIGHT (c) 1989-1998. + * COPYRIGHT (c) 1989-2007. * On-Line Applications Research Corporation (OAR). * * The license and distribution terms for this file may be @@ -90,36 +90,17 @@ rtems_isr Clock_isr(rtems_vector_number vector) void clockOn(void* unused) { + extern uint32_t bsp_clicks_per_usec; decrementer_value = rtems_configuration_get_microseconds_per_tick() * - rtems_cpu_configuration_get_clicks_per_usec() - 1; + bsp_clicks_per_usec - 1; PPC_Set_decrementer( decrementer_value ); Clock_driver_ticks = 0; ClockInitialised = 1; - - -#if 0 - unsigned desiredLevel; - uint32_t pit_value; - - pit_value = (rtems_configuration_get_microseconds_per_tick() * - rtems_cpu_configuration_get_clicks_per_usec()) - 1 ; - - if (pit_value > 0xffff) { /* pit is only 16 bits long */ - rtems_fatal_error_occurred(-1); - } - m8260.sccr &= ~(1<<24); - m8260.pitc = pit_value; - - desiredLevel = BSP_get_clock_irq_level(); - /* set PIT irq level, enable PIT, PIT interrupts */ - /* and clear int. status */ - m8260.piscr = /*M8260_PISCR_PIRQ(desiredLevel) |*/ - M8260_PISCR_PTE | M8260_PISCR_PS | M8260_PISCR_PIE; -#endif } + /* * Called via atexit() * Remove the clock interrupt handler by setting handler to NULL @@ -156,11 +137,12 @@ Clock_exit(void) void Install_clock(rtems_isr_entry clock_isr) { - Clock_driver_ticks = 0; + extern uint32_t bsp_clicks_per_usec; + Clock_driver_ticks = 0; decrementer_value = rtems_configuration_get_microseconds_per_tick() * - rtems_cpu_configuration_get_clicks_per_usec() - 1; + bsp_clicks_per_usec - 1; PPC_Set_decrementer( decrementer_value ); |