mirror of
https://gitlab.rtems.org/rtems/rtos/rtems.git
synced 2025-11-16 12:34:45 +00:00
2011-02-17 Till Straumann <strauman@slac.stanford.edu>
PR 1738/bsps * README, startup/bspstart.c, startup/linkcmds: Add support for dynamic clock speed determination. This algorithm is described in the README file. The output of the RTEMS Timing Tests was moved to TIMES to signicantly shrink the README. * TIMES: New file.
This commit is contained in:
Joel Sherrill
@@ -1,3 +1,12 @@
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2011-02-17 Till Straumann <strauman@slac.stanford.edu>
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PR 1738/bsps
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* README, startup/bspstart.c, startup/linkcmds: Add support for dynamic
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clock speed determination. This algorithm is described in the README
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file. The output of the RTEMS Timing Tests was moved to TIMES to
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signicantly shrink the README.
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* TIMES: New file.
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2011-02-02 Ralf Corsépius <ralf.corsepius@rtems.org>
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* configure.ac: Require autoconf-2.68, automake-1.11.1.
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@@ -25,9 +25,9 @@ TODO:
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The bsp relies on the Arcturus monitor to set up DRAM and all chip selects.
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This seems OK to me, but others may find it lame.....
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I/O pin restrictions make simultaneous operation
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of I2C, CAN and UART2 impossible. The BSP configures UART2 to
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use the CAN pins and leaves the I2C pins available for use.
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I/O pin restrictions make simultaneous operation of I2C, CAN and UART2
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impossible. The BSP configures UART2 to use the CAN pins and leaves
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the I2C pins available for use.
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BSP NAME: uC5282
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BOARD: Arcturus Netrworks uCdimm 5282
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@@ -100,6 +100,37 @@ port into RAM then executed or programmed into flash memory.
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6) Type 'goram<CR>' to start the downloaded program, or type 'program<CR>'
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to burn the code onto the uCDIMM flash.
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Clock Speed Determination Algorithm
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===================================
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Till Straumann submitted a patch to provide more dynamic clock speed
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selection.
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Currently, the uC5282 BSP requires relinking the application with a
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special linker flag in order to make it work with 80MHz boards (breaking
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run-time compatibility with 64MHz variants).
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The change aims adds support for run-time guessing/setting of
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the system-clock frequency:
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1) If uCbootloader environment variable SYS_CLOCK_SPEED is set to a
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non-zero number then the BSP assumes this number to specify the clock
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frequency in Hz.
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2) If 1) yields no non-zero frequency then the linker-provided symbol
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_CPUClockSpeed is assumed to specify the clock frequency (in Hz). This
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is the traditional behavior but the default value of _CPUClockSpeed
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was changed from 64000000 to 0 (in order to let step 3) do it's work
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by default).
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3) If neither 1) nor 2) yield a non-zero frequency then assume a PLL
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reference frequency (in Hz) as defined by the linker-provided symbol
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'_PLLRefClockSpeed' (which defaults to 8000000) and compute the system
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clock frequency from the divisor/multiplier settings in the SYNCR
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register.
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We have both, 64MHz and 80MHz variants and both use a PLL reference of
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8MHz so that run-time heuristics + detection 3) work fine.
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EPICS Bootstrap Information
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===========================
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The EPICS startup code uses the following environment variables. If an
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@@ -207,321 +238,3 @@ External interrupt lines (priority is fixed between 3 and 4):
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============================================================================
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TIMING TESTS 2005-01-28
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========================
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*** TIME TEST 1 ***
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rtems_semaphore_create 19
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rtems_semaphore_delete 21
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rtems_semaphore_obtain: available 4
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rtems_semaphore_obtain: not available -- NO_WAIT 5
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rtems_semaphore_release: no waiting tasks 12
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*** END OF TEST 1 ***
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*** TIME TEST 2 ***
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rtems_semaphore_obtain: not available -- caller blocks 34
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*** END OF TEST 2 ***
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*** TIME TEST 3 ***
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rtems_semaphore_release: task readied -- preempts caller 27
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*** END OF TEST 3 ***
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*** TIME TEST 4 ***
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rtems_task_restart: blocked task -- preempts caller 54
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rtems_task_restart: ready task -- preempts caller 52
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rtems_semaphore_release: task readied -- returns to caller 18
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rtems_task_create 87
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rtems_task_start 24
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rtems_task_restart: suspended task -- returns to caller 27
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rtems_task_delete: suspended task 66
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rtems_task_restart: ready task -- returns to caller 28
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rtems_task_restart: blocked task -- returns to caller 38
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rtems_task_delete: blocked task 69
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*** END OF TEST 4 ***
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*** TIME TEST 5 ***
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rtems_task_suspend: calling task 23
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rtems_task_resume: task readied -- preempts caller 22
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*** END OF TEST 5 ***
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*** TIME TEST 6 ***
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rtems_task_restart: calling task 30
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rtems_task_suspend: returns to caller 9
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rtems_task_resume: task readied -- returns to caller 12
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rtems_task_delete: ready task 69
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*** END OF TEST 6 ***
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*** TIME TEST 7 ***
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rtems_task_restart: suspended task -- preempts caller 44
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*** END OF TEST 7 ***
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*** TIME TEST 8 ***
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rtems_task_set_priority: obtain current priority 6
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rtems_task_set_priority: returns to caller 17
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rtems_task_mode: obtain current mode 3
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rtems_task_mode: no reschedule 3
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rtems_task_mode: reschedule -- returns to caller 8
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rtems_task_mode: reschedule -- preempts caller 22
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rtems_task_set_note 6
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rtems_task_get_note 6
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rtems_clock_set 22
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rtems_clock_get 1
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*** END OF TEST 8 ***
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*** TIME TEST 9 ***
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rtems_message_queue_create 55
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rtems_message_queue_send: no waiting tasks 20
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rtems_message_queue_urgent: no waiting tasks 21
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rtems_message_queue_receive: available 20
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rtems_message_queue_flush: no messages flushed 8
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rtems_message_queue_flush: messages flushed 12
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rtems_message_queue_delete 29
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*** END OF TEST 9 ***
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*** TIME TEST 10 ***
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rtems_message_queue_receive: not available -- NO_WAIT 10
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rtems_message_queue_receive: not available -- caller blocks 38
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*** END OF TEST 10 ***
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*** TIME TEST 11 ***
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rtems_message_queue_send: task readied -- preempts caller 37
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*** END OF TEST 11 ***
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*** TIME TEST 12 ***
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rtems_message_queue_send: task readied -- returns to caller 23
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*** END OF TEST 12 ***
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*** TIME TEST 13 ***
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rtems_message_queue_urgent: task readied -- preempts caller 35
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*** END OF TEST 13 ***
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*** TIME TEST 14 ***
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rtems_message_queue_urgent: task readied -- returns to caller 24
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*** END OF TEST 14 ***
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*** TIME TEST 15 ***
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rtems_event_receive: obtain current events 0
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rtems_event_receive: not available -- NO_WAIT 5
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rtems_event_receive: not available -- caller blocks 28
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rtems_event_send: no task readied 5
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rtems_event_receive: available 9
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rtems_event_send: task readied -- returns to caller 16
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*** END OF TEST 15 ***
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*** TIME TEST 16 ***
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rtems_event_send: task readied -- preempts caller 27
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*** END OF TEST 16 ***
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*** TIME TEST 17 ***
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rtems_task_set_priority: preempts caller 39
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*** END OF TEST 17 ***
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*** TIME TEST 18 ***
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rtems_task_delete: calling task 83
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*** END OF TEST 18 ***
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*** TIME TEST 19 ***
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rtems_signal_catch 5
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rtems_signal_send: returns to caller 12
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rtems_signal_send: signal to self 20
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exit ASR overhead: returns to calling task 15
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exit ASR overhead: returns to preempting task 18
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*** END OF TEST 19 ***
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*** TIME TEST 20 ***
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rtems_partition_create 20
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rtems_region_create 40
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rtems_partition_get_buffer: available 11
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rtems_partition_get_buffer: not available 7
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rtems_partition_return_buffer 12
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rtems_partition_delete 11
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rtems_region_get_segment: available 28
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rtems_region_get_segment: not available -- NO_WAIT 29
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rtems_region_return_segment: no waiting tasks 29
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rtems_region_get_segment: not available -- caller blocks 55
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rtems_region_return_segment: task readied -- preempts caller 72
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rtems_region_return_segment: task readied -- returns to caller 58
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rtems_region_delete 25
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rtems_io_initialize 1
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rtems_io_open 1
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rtems_io_close 1
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rtems_io_read 1
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rtems_io_write 1
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rtems_io_control 1
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*** END OF TEST 20 ***
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*** TIME TEST 21 ***
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rtems_task_ident 60
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rtems_message_queue_ident 60
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rtems_semaphore_ident 69
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rtems_partition_ident 59
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rtems_region_ident 60
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rtems_port_ident 59
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rtems_timer_ident 61
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rtems_rate_monotonic_ident 60
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*** END OF TEST 21 ***
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*** TIME TEST 22 ***
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rtems_message_queue_broadcast: task readied -- returns to caller 32
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rtems_message_queue_broadcast: no waiting tasks 14
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rtems_message_queue_broadcast: task readied -- preempts caller 39
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*** END OF TEST 22 ***
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*** TIME TEST 23 ***
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rtems_timer_create 8
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rtems_timer_fire_after: inactive 12
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rtems_timer_fire_after: active 12
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rtems_timer_cancel: active 9
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rtems_timer_cancel: inactive 8
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rtems_timer_reset: inactive 14
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rtems_timer_reset: active 15
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rtems_timer_fire_when: inactive 21
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rtems_timer_fire_when: active 21
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rtems_timer_delete: active 12
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rtems_timer_delete: inactive 11
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rtems_task_wake_when 35
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*** END OF TEST 23 ***
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*** TIME TEST 24 ***
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rtems_task_wake_after: yield -- returns to caller 3
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rtems_task_wake_after: yields -- preempts caller 18
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*** END OF TEST 24 ***
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*** TIME TEST 25 ***
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rtems_clock_tick 7
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*** END OF TEST 25 ***
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*** TIME TEST 26 ***
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_ISR_Disable 1
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_ISR_Flash 0
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_ISR_Enable 0
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_Thread_Disable_dispatch 1
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_Thread_Enable_dispatch 3
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_Thread_Set_state 7
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_Thread_Disptach (NO FP) 16
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context switch: no floating point contexts 12
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context switch: self 2
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context switch: to another task 1
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fp context switch: restore 1st FP task 14
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fp context switch: save idle, restore initialized 3
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fp context switch: save idle, restore idle 13
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fp context switch: save initialized, restore initialized 2
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_Thread_Resume 7
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_Thread_Unblock 6
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_Thread_Ready 5
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_Thread_Get 1
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_Semaphore_Get 1
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_Thread_Get: invalid id 0
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*** END OF TEST 26 ***
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*** TIME TEST 27 ***
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interrupt entry overhead: returns to interrupted task 3
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interrupt exit overhead: returns to interrupted task 3
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interrupt entry overhead: returns to nested interrupt 2
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interrupt exit overhead: returns to nested interrupt 2
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interrupt entry overhead: returns to preempting task 4
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interrupt exit overhead: returns to preempting task 20
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*** END OF TEST 27 ***
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*** TIME TEST 28 ***
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rtems_port_create 12
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rtems_port_external_to_internal 5
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rtems_port_internal_to_external 6
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rtems_port_delete 12
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*** END OF TEST 28 ***
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*** TIME TEST 29 ***
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rtems_rate_monotonic_create 13
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rtems_rate_monotonic_period: initiate period -- returns to caller 20
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rtems_rate_monotonic_period: obtain status 10
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rtems_rate_monotonic_cancel 13
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rtems_rate_monotonic_delete: inactive 17
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rtems_rate_monotonic_delete: active 16
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rtems_rate_monotonic_period: conclude periods -- caller blocks 24
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*** END OF TEST 29 ***
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*** TIME CHECKER ***
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Units may not be in microseconds for this test!!!
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0 100000
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Total time = 0
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Average time = 0
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NULL timer stopped at 0
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LOOP (1000) timer stopped at 188
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LOOP (10000) timer stopped at 1875
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LOOP (50000) timer stopped at 9375
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LOOP (100000) timer stopped at 18750
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*** END OF TIME CHECKER ***
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*** TIME TEST OVERHEAD ***
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rtems_initialize_executive 0
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rtems_shutdown_executive 0
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rtems_task_create 0
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rtems_task_ident 0
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rtems_task_start 0
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rtems_task_restart 0
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rtems_task_delete 0
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rtems_task_suspend 0
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rtems_task_resume 0
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rtems_task_set_priority 0
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rtems_task_mode 0
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rtems_task_get_note 0
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rtems_task_set_note 0
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rtems_task_wake_when 1
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rtems_task_wake_after 0
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rtems_interrupt_catch 0
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rtems_clock_get 1
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rtems_clock_set 1
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rtems_clock_tick 0
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rtems_timer_create 0
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rtems_timer_delete 0
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rtems_timer_ident 0
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rtems_timer_fire_after 1
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rtems_timer_fire_when 1
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rtems_timer_reset 0
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rtems_timer_cancel 0
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rtems_semaphore_create 0
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rtems_semaphore_delete 0
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rtems_semaphore_ident 0
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rtems_semaphore_obtain 0
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rtems_semaphore_release 0
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||||
rtems_message_queue_create 0
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||||
rtems_message_queue_ident 0
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||||
rtems_message_queue_delete 0
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||||
rtems_message_queue_send 0
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||||
rtems_message_queue_urgent 0
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rtems_message_queue_broadcast 0
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rtems_message_queue_receive 0
|
||||
rtems_message_queue_flush 0
|
||||
rtems_event_send 0
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||||
rtems_event_receive 0
|
||||
rtems_signal_catch 0
|
||||
rtems_signal_send 0
|
||||
rtems_partition_create 0
|
||||
rtems_partition_ident 0
|
||||
rtems_partition_delete 0
|
||||
rtems_partition_get_buffer 0
|
||||
rtems_partition_return_buffer 0
|
||||
rtems_region_create 0
|
||||
rtems_region_ident 0
|
||||
rtems_region_delete 0
|
||||
rtems_region_get_segment 0
|
||||
rtems_region_return_segment 0
|
||||
rtems_port_create 0
|
||||
rtems_port_ident 0
|
||||
rtems_port_delete 0
|
||||
rtems_port_external_to_internal 0
|
||||
rtems_port_internal_to_external 0
|
||||
rtems_io_initialize 0
|
||||
rtems_io_open 0
|
||||
rtems_io_close 0
|
||||
rtems_io_read 0
|
||||
rtems_io_write 0
|
||||
rtems_io_control 0
|
||||
rtems_fatal_error_occurred 0
|
||||
rtems_rate_monotonic_create 0
|
||||
rtems_rate_monotonic_ident 0
|
||||
rtems_rate_monotonic_delete 0
|
||||
rtems_rate_monotonic_cancel 0
|
||||
rtems_rate_monotonic_period 0
|
||||
rtems_multiprocessing_announce 0
|
||||
*** END OF TIME OVERHEAD ***
|
||||
|
||||
322
c/src/lib/libbsp/m68k/uC5282/TIMES
Normal file
322
c/src/lib/libbsp/m68k/uC5282/TIMES
Normal file
@@ -0,0 +1,322 @@
|
||||
#
|
||||
# $Id$
|
||||
#
|
||||
|
||||
TIMING TESTS 2005-01-28
|
||||
========================
|
||||
|
||||
*** TIME TEST 1 ***
|
||||
rtems_semaphore_create 19
|
||||
rtems_semaphore_delete 21
|
||||
rtems_semaphore_obtain: available 4
|
||||
rtems_semaphore_obtain: not available -- NO_WAIT 5
|
||||
rtems_semaphore_release: no waiting tasks 12
|
||||
*** END OF TEST 1 ***
|
||||
|
||||
*** TIME TEST 2 ***
|
||||
rtems_semaphore_obtain: not available -- caller blocks 34
|
||||
*** END OF TEST 2 ***
|
||||
|
||||
*** TIME TEST 3 ***
|
||||
rtems_semaphore_release: task readied -- preempts caller 27
|
||||
*** END OF TEST 3 ***
|
||||
|
||||
*** TIME TEST 4 ***
|
||||
rtems_task_restart: blocked task -- preempts caller 54
|
||||
rtems_task_restart: ready task -- preempts caller 52
|
||||
rtems_semaphore_release: task readied -- returns to caller 18
|
||||
rtems_task_create 87
|
||||
rtems_task_start 24
|
||||
rtems_task_restart: suspended task -- returns to caller 27
|
||||
rtems_task_delete: suspended task 66
|
||||
rtems_task_restart: ready task -- returns to caller 28
|
||||
rtems_task_restart: blocked task -- returns to caller 38
|
||||
rtems_task_delete: blocked task 69
|
||||
*** END OF TEST 4 ***
|
||||
|
||||
*** TIME TEST 5 ***
|
||||
rtems_task_suspend: calling task 23
|
||||
rtems_task_resume: task readied -- preempts caller 22
|
||||
*** END OF TEST 5 ***
|
||||
|
||||
*** TIME TEST 6 ***
|
||||
rtems_task_restart: calling task 30
|
||||
rtems_task_suspend: returns to caller 9
|
||||
rtems_task_resume: task readied -- returns to caller 12
|
||||
rtems_task_delete: ready task 69
|
||||
*** END OF TEST 6 ***
|
||||
|
||||
*** TIME TEST 7 ***
|
||||
rtems_task_restart: suspended task -- preempts caller 44
|
||||
*** END OF TEST 7 ***
|
||||
|
||||
*** TIME TEST 8 ***
|
||||
rtems_task_set_priority: obtain current priority 6
|
||||
rtems_task_set_priority: returns to caller 17
|
||||
rtems_task_mode: obtain current mode 3
|
||||
rtems_task_mode: no reschedule 3
|
||||
rtems_task_mode: reschedule -- returns to caller 8
|
||||
rtems_task_mode: reschedule -- preempts caller 22
|
||||
rtems_task_set_note 6
|
||||
rtems_task_get_note 6
|
||||
rtems_clock_set 22
|
||||
rtems_clock_get 1
|
||||
*** END OF TEST 8 ***
|
||||
|
||||
*** TIME TEST 9 ***
|
||||
rtems_message_queue_create 55
|
||||
rtems_message_queue_send: no waiting tasks 20
|
||||
rtems_message_queue_urgent: no waiting tasks 21
|
||||
rtems_message_queue_receive: available 20
|
||||
rtems_message_queue_flush: no messages flushed 8
|
||||
rtems_message_queue_flush: messages flushed 12
|
||||
rtems_message_queue_delete 29
|
||||
*** END OF TEST 9 ***
|
||||
|
||||
*** TIME TEST 10 ***
|
||||
rtems_message_queue_receive: not available -- NO_WAIT 10
|
||||
rtems_message_queue_receive: not available -- caller blocks 38
|
||||
*** END OF TEST 10 ***
|
||||
|
||||
*** TIME TEST 11 ***
|
||||
rtems_message_queue_send: task readied -- preempts caller 37
|
||||
*** END OF TEST 11 ***
|
||||
|
||||
*** TIME TEST 12 ***
|
||||
rtems_message_queue_send: task readied -- returns to caller 23
|
||||
*** END OF TEST 12 ***
|
||||
|
||||
*** TIME TEST 13 ***
|
||||
rtems_message_queue_urgent: task readied -- preempts caller 35
|
||||
*** END OF TEST 13 ***
|
||||
|
||||
*** TIME TEST 14 ***
|
||||
rtems_message_queue_urgent: task readied -- returns to caller 24
|
||||
*** END OF TEST 14 ***
|
||||
|
||||
*** TIME TEST 15 ***
|
||||
rtems_event_receive: obtain current events 0
|
||||
rtems_event_receive: not available -- NO_WAIT 5
|
||||
rtems_event_receive: not available -- caller blocks 28
|
||||
rtems_event_send: no task readied 5
|
||||
rtems_event_receive: available 9
|
||||
rtems_event_send: task readied -- returns to caller 16
|
||||
*** END OF TEST 15 ***
|
||||
|
||||
*** TIME TEST 16 ***
|
||||
rtems_event_send: task readied -- preempts caller 27
|
||||
*** END OF TEST 16 ***
|
||||
|
||||
*** TIME TEST 17 ***
|
||||
rtems_task_set_priority: preempts caller 39
|
||||
*** END OF TEST 17 ***
|
||||
|
||||
*** TIME TEST 18 ***
|
||||
rtems_task_delete: calling task 83
|
||||
*** END OF TEST 18 ***
|
||||
|
||||
*** TIME TEST 19 ***
|
||||
rtems_signal_catch 5
|
||||
rtems_signal_send: returns to caller 12
|
||||
rtems_signal_send: signal to self 20
|
||||
exit ASR overhead: returns to calling task 15
|
||||
exit ASR overhead: returns to preempting task 18
|
||||
*** END OF TEST 19 ***
|
||||
|
||||
*** TIME TEST 20 ***
|
||||
rtems_partition_create 20
|
||||
rtems_region_create 40
|
||||
rtems_partition_get_buffer: available 11
|
||||
rtems_partition_get_buffer: not available 7
|
||||
rtems_partition_return_buffer 12
|
||||
rtems_partition_delete 11
|
||||
rtems_region_get_segment: available 28
|
||||
rtems_region_get_segment: not available -- NO_WAIT 29
|
||||
rtems_region_return_segment: no waiting tasks 29
|
||||
rtems_region_get_segment: not available -- caller blocks 55
|
||||
rtems_region_return_segment: task readied -- preempts caller 72
|
||||
rtems_region_return_segment: task readied -- returns to caller 58
|
||||
rtems_region_delete 25
|
||||
rtems_io_initialize 1
|
||||
rtems_io_open 1
|
||||
rtems_io_close 1
|
||||
rtems_io_read 1
|
||||
rtems_io_write 1
|
||||
rtems_io_control 1
|
||||
*** END OF TEST 20 ***
|
||||
|
||||
*** TIME TEST 21 ***
|
||||
rtems_task_ident 60
|
||||
rtems_message_queue_ident 60
|
||||
rtems_semaphore_ident 69
|
||||
rtems_partition_ident 59
|
||||
rtems_region_ident 60
|
||||
rtems_port_ident 59
|
||||
rtems_timer_ident 61
|
||||
rtems_rate_monotonic_ident 60
|
||||
*** END OF TEST 21 ***
|
||||
|
||||
*** TIME TEST 22 ***
|
||||
rtems_message_queue_broadcast: task readied -- returns to caller 32
|
||||
rtems_message_queue_broadcast: no waiting tasks 14
|
||||
rtems_message_queue_broadcast: task readied -- preempts caller 39
|
||||
*** END OF TEST 22 ***
|
||||
|
||||
*** TIME TEST 23 ***
|
||||
rtems_timer_create 8
|
||||
rtems_timer_fire_after: inactive 12
|
||||
rtems_timer_fire_after: active 12
|
||||
rtems_timer_cancel: active 9
|
||||
rtems_timer_cancel: inactive 8
|
||||
rtems_timer_reset: inactive 14
|
||||
rtems_timer_reset: active 15
|
||||
rtems_timer_fire_when: inactive 21
|
||||
rtems_timer_fire_when: active 21
|
||||
rtems_timer_delete: active 12
|
||||
rtems_timer_delete: inactive 11
|
||||
rtems_task_wake_when 35
|
||||
*** END OF TEST 23 ***
|
||||
|
||||
*** TIME TEST 24 ***
|
||||
rtems_task_wake_after: yield -- returns to caller 3
|
||||
rtems_task_wake_after: yields -- preempts caller 18
|
||||
*** END OF TEST 24 ***
|
||||
|
||||
*** TIME TEST 25 ***
|
||||
rtems_clock_tick 7
|
||||
*** END OF TEST 25 ***
|
||||
|
||||
*** TIME TEST 26 ***
|
||||
_ISR_Disable 1
|
||||
_ISR_Flash 0
|
||||
_ISR_Enable 0
|
||||
_Thread_Disable_dispatch 1
|
||||
_Thread_Enable_dispatch 3
|
||||
_Thread_Set_state 7
|
||||
_Thread_Disptach (NO FP) 16
|
||||
context switch: no floating point contexts 12
|
||||
context switch: self 2
|
||||
context switch: to another task 1
|
||||
fp context switch: restore 1st FP task 14
|
||||
fp context switch: save idle, restore initialized 3
|
||||
fp context switch: save idle, restore idle 13
|
||||
fp context switch: save initialized, restore initialized 2
|
||||
_Thread_Resume 7
|
||||
_Thread_Unblock 6
|
||||
_Thread_Ready 5
|
||||
_Thread_Get 1
|
||||
_Semaphore_Get 1
|
||||
_Thread_Get: invalid id 0
|
||||
*** END OF TEST 26 ***
|
||||
|
||||
*** TIME TEST 27 ***
|
||||
interrupt entry overhead: returns to interrupted task 3
|
||||
interrupt exit overhead: returns to interrupted task 3
|
||||
interrupt entry overhead: returns to nested interrupt 2
|
||||
interrupt exit overhead: returns to nested interrupt 2
|
||||
interrupt entry overhead: returns to preempting task 4
|
||||
interrupt exit overhead: returns to preempting task 20
|
||||
*** END OF TEST 27 ***
|
||||
|
||||
*** TIME TEST 28 ***
|
||||
rtems_port_create 12
|
||||
rtems_port_external_to_internal 5
|
||||
rtems_port_internal_to_external 6
|
||||
rtems_port_delete 12
|
||||
*** END OF TEST 28 ***
|
||||
|
||||
*** TIME TEST 29 ***
|
||||
rtems_rate_monotonic_create 13
|
||||
rtems_rate_monotonic_period: initiate period -- returns to caller 20
|
||||
rtems_rate_monotonic_period: obtain status 10
|
||||
rtems_rate_monotonic_cancel 13
|
||||
rtems_rate_monotonic_delete: inactive 17
|
||||
rtems_rate_monotonic_delete: active 16
|
||||
rtems_rate_monotonic_period: conclude periods -- caller blocks 24
|
||||
*** END OF TEST 29 ***
|
||||
|
||||
*** TIME CHECKER ***
|
||||
Units may not be in microseconds for this test!!!
|
||||
0 100000
|
||||
Total time = 0
|
||||
Average time = 0
|
||||
NULL timer stopped at 0
|
||||
LOOP (1000) timer stopped at 188
|
||||
LOOP (10000) timer stopped at 1875
|
||||
LOOP (50000) timer stopped at 9375
|
||||
LOOP (100000) timer stopped at 18750
|
||||
*** END OF TIME CHECKER ***
|
||||
|
||||
*** TIME TEST OVERHEAD ***
|
||||
rtems_initialize_executive 0
|
||||
rtems_shutdown_executive 0
|
||||
rtems_task_create 0
|
||||
rtems_task_ident 0
|
||||
rtems_task_start 0
|
||||
rtems_task_restart 0
|
||||
rtems_task_delete 0
|
||||
rtems_task_suspend 0
|
||||
rtems_task_resume 0
|
||||
rtems_task_set_priority 0
|
||||
rtems_task_mode 0
|
||||
rtems_task_get_note 0
|
||||
rtems_task_set_note 0
|
||||
rtems_task_wake_when 1
|
||||
rtems_task_wake_after 0
|
||||
rtems_interrupt_catch 0
|
||||
rtems_clock_get 1
|
||||
rtems_clock_set 1
|
||||
rtems_clock_tick 0
|
||||
rtems_timer_create 0
|
||||
rtems_timer_delete 0
|
||||
rtems_timer_ident 0
|
||||
rtems_timer_fire_after 1
|
||||
rtems_timer_fire_when 1
|
||||
rtems_timer_reset 0
|
||||
rtems_timer_cancel 0
|
||||
rtems_semaphore_create 0
|
||||
rtems_semaphore_delete 0
|
||||
rtems_semaphore_ident 0
|
||||
rtems_semaphore_obtain 0
|
||||
rtems_semaphore_release 0
|
||||
rtems_message_queue_create 0
|
||||
rtems_message_queue_ident 0
|
||||
rtems_message_queue_delete 0
|
||||
rtems_message_queue_send 0
|
||||
rtems_message_queue_urgent 0
|
||||
rtems_message_queue_broadcast 0
|
||||
rtems_message_queue_receive 0
|
||||
rtems_message_queue_flush 0
|
||||
rtems_event_send 0
|
||||
rtems_event_receive 0
|
||||
rtems_signal_catch 0
|
||||
rtems_signal_send 0
|
||||
rtems_partition_create 0
|
||||
rtems_partition_ident 0
|
||||
rtems_partition_delete 0
|
||||
rtems_partition_get_buffer 0
|
||||
rtems_partition_return_buffer 0
|
||||
rtems_region_create 0
|
||||
rtems_region_ident 0
|
||||
rtems_region_delete 0
|
||||
rtems_region_get_segment 0
|
||||
rtems_region_return_segment 0
|
||||
rtems_port_create 0
|
||||
rtems_port_ident 0
|
||||
rtems_port_delete 0
|
||||
rtems_port_external_to_internal 0
|
||||
rtems_port_internal_to_external 0
|
||||
rtems_io_initialize 0
|
||||
rtems_io_open 0
|
||||
rtems_io_close 0
|
||||
rtems_io_read 0
|
||||
rtems_io_write 0
|
||||
rtems_io_control 0
|
||||
rtems_fatal_error_occurred 0
|
||||
rtems_rate_monotonic_create 0
|
||||
rtems_rate_monotonic_ident 0
|
||||
rtems_rate_monotonic_delete 0
|
||||
rtems_rate_monotonic_cancel 0
|
||||
rtems_rate_monotonic_period 0
|
||||
rtems_multiprocessing_announce 0
|
||||
*** END OF TIME OVERHEAD ***
|
||||
@@ -22,6 +22,7 @@
|
||||
#include <rtems/error.h>
|
||||
#include <errno.h>
|
||||
#include <stdio.h>
|
||||
#include <mcf5282/mcf5282.h>
|
||||
|
||||
/*
|
||||
* Location of 'VME' access
|
||||
@@ -34,7 +35,11 @@
|
||||
*/
|
||||
extern char RamSize[];
|
||||
extern char RamBase[];
|
||||
extern char _CPUClockSpeed[];
|
||||
extern char _PLLRefClockSpeed[];
|
||||
|
||||
uint32_t BSP_sys_clk_speed = (uint32_t)_CPUClockSpeed;
|
||||
uint32_t BSP_pll_ref_clock = (uint32_t)_PLLRefClockSpeed;
|
||||
/*
|
||||
* CPU-space access
|
||||
* The NOP after writing the CACR is there to address the following issue as
|
||||
@@ -236,7 +241,9 @@ static void handler(int pc)
|
||||
*/
|
||||
void bsp_start( void )
|
||||
{
|
||||
int i;
|
||||
int i;
|
||||
const char *clk_speed_str;
|
||||
uint32_t clk_speed, mfd, rfd;
|
||||
|
||||
/*
|
||||
* Set up default exception handler
|
||||
@@ -299,13 +306,69 @@ void bsp_start( void )
|
||||
MCF5282_CS_CSMR_V;
|
||||
MCF5282_CS2_CSCR = MCF5282_CS_CSCR_PS_16;
|
||||
MCF5282_GPIO_PJPAR |= 0x06;
|
||||
}
|
||||
|
||||
extern char _CPUClockSpeed[];
|
||||
/*
|
||||
* Hopefully, the UART clock is still correctly set up
|
||||
* so they can see the printk() output...
|
||||
*/
|
||||
clk_speed = 0;
|
||||
printk("Trying to figure out the system clock\n");
|
||||
printk("Checking ENV variable SYS_CLOCK_SPEED:\n");
|
||||
if ( (clk_speed_str = bsp_getbenv("SYS_CLOCK_SPEED")) ) {
|
||||
printk("Found: %s\n", clk_speed_str);
|
||||
for ( clk_speed = 0, i=0;
|
||||
clk_speed_str[i] >= '0' && clk_speed_str[i] <= '9';
|
||||
i++ ) {
|
||||
clk_speed = 10*clk_speed + clk_speed_str[i] - '0';
|
||||
}
|
||||
if ( 0 != clk_speed_str[i] ) {
|
||||
printk("Not a decimal number; I'm not using this setting\n");
|
||||
clk_speed = 0;
|
||||
}
|
||||
} else {
|
||||
printk("Not set.\n");
|
||||
}
|
||||
|
||||
if ( 0 == clk_speed )
|
||||
clk_speed = BSP_sys_clk_speed;
|
||||
|
||||
if ( 0 == clk_speed ) {
|
||||
printk("Using some heuristics to determine clock speed...\n");
|
||||
printk("Assuming %uHz PLL ref. clock\n", BSP_pll_ref_clock);
|
||||
if ( 0xf8 != MCF5282_CLOCK_SYNSR ) {
|
||||
printk("FATAL ERROR: Unexpected SYNSR contents, can't proceed\n");
|
||||
bsp_sysReset(0);
|
||||
}
|
||||
mfd = MCF5282_CLOCK_SYNCR;
|
||||
rfd = (mfd >> 8) & 7;
|
||||
mfd = (mfd >> 12) & 7;
|
||||
/* Check against 'known' cases */
|
||||
if ( 0 != rfd || (2 != mfd && 3 != mfd) ) {
|
||||
printk("WARNING: Pll divisor/multiplier has unknown value; \n");
|
||||
printk(" either your board is not 64MHz or 80Mhz or\n");
|
||||
printk(" it uses a PLL reference other than 8MHz.\n");
|
||||
printk(" I'll proceed anyways but you might have to\n");
|
||||
printk(" reset the board and set uCbootloader ENV\n");
|
||||
printk(" variable \"SYS_CLOCK_SPEED\".\n");
|
||||
}
|
||||
mfd = 2 * (mfd + 2);
|
||||
/* sysclk = pll_ref * 2 * (MFD + 2) / 2^(rfd) */
|
||||
printk("PLL multiplier: %u, output divisor: %u\n", mfd, rfd);
|
||||
clk_speed = (BSP_pll_ref_clock * mfd) >> rfd;
|
||||
}
|
||||
|
||||
if ( 0 == clk_speed ) {
|
||||
printk("FATAL ERROR: Unable to determine system clock speed\n");
|
||||
bsp_sysReset(0);
|
||||
} else {
|
||||
BSP_sys_clk_speed = clk_speed;
|
||||
printk("System clock speed: %uHz\n", bsp_get_CPU_clock_speed());
|
||||
}
|
||||
}
|
||||
|
||||
uint32_t bsp_get_CPU_clock_speed(void)
|
||||
{
|
||||
return( (uint32_t)_CPUClockSpeed);
|
||||
return( BSP_sys_clk_speed );
|
||||
}
|
||||
|
||||
/*
|
||||
|
||||
@@ -30,8 +30,17 @@ _DownloadLocation = 0x40000;
|
||||
|
||||
/*
|
||||
* System clock speed
|
||||
*
|
||||
* If autodetection of the system clock pased on the PLL ref. clock
|
||||
* (AFAIK 8MHz for both 64MHz and 80MHz boards) doesn't work then
|
||||
* you can:
|
||||
* - define (nonzero) system clock speed from app- linkflags (or here)
|
||||
* - use a uCbootloader env. var: SYS_CLOCK_SPEED to define it.
|
||||
* You can also redefine the PLL reference clock speed from linkflags
|
||||
* or here...
|
||||
*/
|
||||
_CPUClockSpeed = DEFINED(_CPUClockSpeed) ? _CPUClockSpeed : 64000000 ;
|
||||
_CPUClockSpeed = DEFINED(_CPUClockSpeed) ? _CPUClockSpeed : 0 ;
|
||||
_PLLRefClockSpeed = DEFINED(_PLLRefClockSpeed) ? _PLLRefClockSpeed : 8000000;
|
||||
|
||||
/*
|
||||
* Location of on-chip devices
|
||||
|
||||
Reference in New Issue
Block a user