diff options
Diffstat (limited to '')
| -rw-r--r-- | c/src/lib/libbsp/m68k/idp/clock/ckinit.c | 65 |
1 files changed, 30 insertions, 35 deletions
diff --git a/c/src/lib/libbsp/m68k/idp/clock/ckinit.c b/c/src/lib/libbsp/m68k/idp/clock/ckinit.c index f8a517ed48..ab56f8a981 100644 --- a/c/src/lib/libbsp/m68k/idp/clock/ckinit.c +++ b/c/src/lib/libbsp/m68k/idp/clock/ckinit.c @@ -96,37 +96,35 @@ rtems_isr_entry clock_isr; Clock_driver_ticks = 0; Clock_isrs = (int)(Configuration.microseconds_per_tick / 1000); - if ( Configuration.ticks_per_timeslice ) { /* led_putnum('c'); * for debugging purposes */ Old_ticker = (rtems_isr_entry) set_vector( clock_isr, CLOCK_VECTOR, 1 ); - /* Disable timer for initialization */ - MC68230_WRITE (TCR, 0x00); - - /* some PI/T initialization stuff here -- see comment in the ckisr.c - file in this directory to understand why I use the values that I do */ - /* Set up the interrupt vector on the MC68230 chip: - TIVR = CLOCK_VECTOR; */ - MC68230_WRITE (TIVR, CLOCK_VECTOR); - - /* Set CPRH through CPRL to 193 (not 203) decimal for countdown--see ckisr.c - CPRH = 0x00; - CPRM = 0x00; - CPRL = 0xC1; */ - MC68230_WRITE (CPRH, 0x00); - MC68230_WRITE (CPRM, 0x00); - MC68230_WRITE (CPRL, 0xC1); - - /* Enable timer and use it as an external periodic interrupt generator - TCR = 0xA1; */ + /* Disable timer for initialization */ + MC68230_WRITE (TCR, 0x00); + + /* some PI/T initialization stuff here -- see comment in the ckisr.c + file in this directory to understand why I use the values that I do */ + /* Set up the interrupt vector on the MC68230 chip: + TIVR = CLOCK_VECTOR; */ + MC68230_WRITE (TIVR, CLOCK_VECTOR); + + /* Set CPRH through CPRL to 193 (not 203) decimal for countdown--see ckisr.c + CPRH = 0x00; + CPRM = 0x00; + CPRL = 0xC1; */ + MC68230_WRITE (CPRH, 0x00); + MC68230_WRITE (CPRM, 0x00); + MC68230_WRITE (CPRL, 0xC1); + + /* Enable timer and use it as an external periodic interrupt generator + TCR = 0xA1; */ /* led_putnum('a'); * for debugging purposes */ - MC68230_WRITE (TCR, 0xA1); + MC68230_WRITE (TCR, 0xA1); - /* - * Schedule the clock cleanup routine to execute if the application exits. - */ - atexit( Clock_exit ); - } + /* + * Schedule the clock cleanup routine to execute if the application exits. + */ + atexit( Clock_exit ); } /* The following was added for debugging purposes */ @@ -134,16 +132,13 @@ void Clock_exit( void ) { rtems_unsigned8 data; - if ( Configuration.ticks_per_timeslice ) { - - /* disable timer - data = TCR; - TCR = (data & 0xFE); */ - MC68230_READ (TCR, data); - MC68230_WRITE (TCR, (data & 0xFE)); + /* disable timer + data = TCR; + TCR = (data & 0xFE); */ + MC68230_READ (TCR, data); + MC68230_WRITE (TCR, (data & 0xFE)); - /* do not restore old vector */ - } + /* do not restore old vector */ } rtems_device_driver Clock_initialize( |