diff options
Diffstat (limited to 'c/src/lib/libbsp/m68k/mcf5235/clock/clock.c')
| -rw-r--r-- | c/src/lib/libbsp/m68k/mcf5235/clock/clock.c | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/c/src/lib/libbsp/m68k/mcf5235/clock/clock.c b/c/src/lib/libbsp/m68k/mcf5235/clock/clock.c deleted file mode 100644 index 9664fddb6f..0000000000 --- a/c/src/lib/libbsp/m68k/mcf5235/clock/clock.c +++ /dev/null @@ -1,61 +0,0 @@ -/* - * Use the last periodic interval timer (PIT3) as the system clock. - */ - -#include <rtems.h> -#include <bsp.h> -#include <mcf5235/mcf5235.h> - -/* - * Use INTC0 base - */ -#define CLOCK_VECTOR (64+39) - -/* - * Periodic interval timer interrupt handler - */ -#define Clock_driver_support_at_tick() \ - do { \ - MCF5235_PIT_PCSR3 |= MCF5235_PIT_PCSR_PIF; \ - } while (0) \ - -/* - * Attach clock interrupt handler - */ -#define Clock_driver_support_install_isr( _new ) \ - set_vector(_new, CLOCK_VECTOR, 1) - -/* - * Turn off the clock - */ -#define Clock_driver_support_shutdown_hardware() \ - do { \ - MCF5235_PIT_PCSR3 &= ~MCF5235_PIT_PCSR_EN; \ - } while(0) - -/* - * Set up the clock hardware - * - * We need to have 1 interrupt every 10,000 microseconds - * so we need to set prescaler to 64 and the PMR register to 0x2DC6 - */ -#define Clock_driver_support_initialize_hardware() \ - do { \ - int level; \ - int preScaleCode = 6; \ - MCF5235_INTC0_ICR39 = MCF5235_INTC_ICR_IL(PIT3_IRQ_LEVEL) | \ - MCF5235_INTC_ICR_IP(PIT3_IRQ_PRIORITY); \ - rtems_interrupt_disable( level ); \ - MCF5235_INTC0_IMRH &= ~MCF5235_INTC0_IMRH_INT39; \ - MCF5235_PIT_PCSR3 &= ~MCF5235_PIT_PCSR_EN; \ - rtems_interrupt_enable( level ); \ - MCF5235_PIT_PMR3 = 0x2DC6; \ - MCF5235_PIT_PCSR3 = MCF5235_PIT_PCSR_PRE(preScaleCode) | \ - MCF5235_PIT_PCSR_PIE | \ - MCF5235_PIT_PCSR_RLD | \ - MCF5235_PIT_PCSR_EN; \ - } while (0) - -#define CLOCK_DRIVER_USE_DUMMY_TIMECOUNTER - -#include "../../../shared/clockdrv_shell.h" |