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#

#  $Id: README,v 1.2 2001-09-27 12:00:35 chris Exp $

#

#

# This package requires a version of GCC that supports the `-mcpu32' option.

#

#

# Please send any comments, improvements, or bug reports to:

#       W. Eric Norum

#       Saskatchewan Accelerator Laboratory

#       107 North Road

#       University of Saskatchewan

#       Saskatoon, Saskatchewan, CANADA

#       S7N 5C6

# eric@skatter.usask.ca

#

#

# This board support package works with several different versions of

# MC68360 systems.  The choice of hardware is made at the final link-edit

# phase by setting the Makefile CLAGS_LD definition appropriately.

#

# Decisions made at compile time include:

#       - If the CPU is a member of the 68040 family, the BSP is

#         compiled for a generic 68040/68360 system as described

#         in Chapter 9 of the MC68360 User's Manual.

#       - If the preprocessor symbol M68360_ATLAS_HSB is defined,

#         the BSP is compiled for an Atlas HSB card.

#       - Otherwise, the BSP is compiled for a generic 68360 system

#         as described in Chapter 9 of the MC68360 User's Manual.

#

# Decisions to be made a link-edit time are:

#     - The size of the memory allocator heap.  The default value is

#       64 kbytes.  If the network package is used the heap

#       should be at least 256 kbytes.  If your network is large, or

#       busy, the heap should be even larger.

#       To choose a heap size of 256 kbytes,

#       CFLAGS_LD += -Wl,--defsym -Wl,HeapSize=0x40000

BSP NAME:           gen68360 or gen68360_040

BOARD:              Generic 68360 as described in Motorola MC68360 User's Manual

BOARD:              Atlas Computer Equipment Inc. High Speed Bridge (HSB)

BOARD:              Atlas Computer Equipment Inc. Advanced Communication Engine (ACE)

BOARD:              Arnewsh SBC360 68040/68360 card

BUS:                none

CPU FAMILY:         Motorola CPU32+, Motorola 68040

COPROCESSORS:       none

MODE:               not applicable

DEBUG MONITOR:      none (Hardware provides BDM)

PERIPHERALS

===========

TIMERS:             PIT, Watchdog, 4 general purpose, 16 RISC

  RESOLUTION:       one microsecond

SERIAL PORTS:       4 SCC, 2 SMC, 1 SPI

REAL-TIME CLOCK:

DMA:                Each serial port, 2 general purpose

VIDEO:              none

SCSI:               none

NETWORKING:         Ethernet on SCC1.

DRIVER INFORMATION

==================

CLOCK DRIVER:       Programmable Interval Timer

IOSUPP DRIVER:      Serial Management Controller 1

SHMSUPP:            none

TIMER DRIVER:       Timer 1

STDIO

=====

PORT:               SMC1

ELECTRICAL:         EIA-232 (if board supplies level shifter)

BAUD:               9600

BITS PER CHARACTER: 8

PARITY:             None

STOP BITS:          1

NOTES

=====

Board description

-----------------

clock rate:     25 MHz

bus width:      8-bit PROM, 32-bit DRAM

ROM:            To 1 MByte, 180 nsec (3 wait states), chip select 0

RAM:            1 to 16 MByte DRAM SIMM, 60 nsec (0 wait states), parity or nonparity

Host System

-----------

OPENSTEP 4.2 (Intel and Motorola), Solaris 2.5, Linux 2.0.29

Verification (Standalone 68360)

-------------------------------

Single processor tests:  Passed

Multi-processort tests:  not applicable

Timing tests:

        Context Switch

        context switch: self 10

        context switch: to another task 11

        context switch: no floating point contexts 40

        fp context switch: restore 1st FP task 41

        fp context switch: save initialized, restore initialized 14

        fp context switch: save idle, restore initialized 14

        fp context switch: save idle, restore idle 43

        Task Manager

        rtems_task_create 133

        rtems_task_ident 351

        rtems_task_start 77

        rtems_task_restart: calling task 93

        rtems_task_restart: suspended task -- returns to caller 90

        rtems_task_restart: blocked task -- returns to caller 120

        rtems_task_restart: ready task -- returns to caller 92

        rtems_task_restart: suspended task -- preempts caller 121

        rtems_task_restart: blocked task -- preempts caller 143

        rtems_task_restart: ready task -- preempts caller 138

        rtems_task_delete: calling task 158

        rtems_task_delete: suspended task 129

        rtems_task_delete: blocked task 134

        rtems_task_delete: ready task 136

        rtems_task_suspend: calling task 71

        rtems_task_suspend: returns to caller 47

        rtems_task_resume: task readied -- returns to caller 48

        rtems_task_resume: task readied -- preempts caller 67

        rtems_task_set_priority: obtain current priority 36

        rtems_task_set_priority: returns to caller 65

        rtems_task_set_priority: preempts caller 102

        rtems_task_mode: obtain current mode 13

        rtems_task_mode: no reschedule 15

        rtems_task_mode: reschedule -- returns to caller 22

        rtems_task_mode: reschedule -- preempts caller 61

        rtems_task_get_note 38

        rtems_task_set_note 37

        rtems_task_wake_after: yield -- returns to caller 22

        rtems_task_wake_after: yields -- preempts caller 56

        rtems_task_wake_when 110

        Interrupt Manager

        interrupt entry overhead: returns to nested interrupt 8

        interrupt entry overhead: returns to interrupted task 8

        interrupt entry overhead: returns to preempting task 8

        interrupt exit overhead: returns to nested interrupt 7

        interrupt exit overhead: returns to interrupted task 8

        interrupt exit overhead: returns to preempting task 52

        Clock Manager

        rtems_clock_set 82

        rtems_clock_get 2

        rtems_clock_tick 15

        Timer Manager

        rtems_timer_create 33

        rtems_timer_ident 343

        rtems_timer_delete: inactive 47

        rtems_timer_delete: active 50

        rtems_timer_fire_after: inactive 59

        rtems_timer_fire_after: active 63

        rtems_timer_fire_when: inactive 83

        rtems_timer_fire_when: active 83

        rtems_timer_reset: inactive 55

        rtems_timer_reset: active 58

        rtems_timer_cancel: inactive 35

        rtems_timer_cancel: active 38

        Semaphore Manager

        rtems_semaphore_create 62

        rtems_semaphore_ident 368

        rtems_semaphore_delete 61

        rtems_semaphore_obtain: available 42

        rtems_semaphore_obtain: not available -- NO_WAIT 42

        rtems_semaphore_obtain: not available -- caller blocks 105

        rtems_semaphore_release: no waiting tasks 46

        rtems_semaphore_release: task readied -- returns to caller 64

        rtems_semaphore_release: task readied -- preempts caller 84

        Message Queue Manager

        rtems_message_queue_create 240

        rtems_message_queue_ident 342

        rtems_message_queue_delete 79

        rtems_message_queue_send: no waiting tasks 93

        rtems_message_queue_send: task readied -- returns to caller 96

        rtems_message_queue_send: task readied -- preempts caller 116

        rtems_message_queue_urgent: no waiting tasks 93

        rtems_message_queue_urgent: task readied -- returns to caller 97

        rtems_message_queue_urgent: task readied -- preempts caller 117

        rtems_message_queue_broadcast: no waiting tasks 54

        rtems_message_queue_broadcast: task readied -- returns to caller 106

        rtems_message_queue_broadcast: task readied -- preempts caller 126

        rtems_message_queue_receive: available 79

        rtems_message_queue_receive: not available -- NO_WAIT 48

        rtems_message_queue_receive: not available -- caller blocks 111

        rtems_message_queue_flush: no messages flushed 35

        rtems_message_queue_flush: messages flushed 44

        Event Manager

        rtems_event_send: no task readied 30

        rtems_event_send: task readied -- returns to caller 59

        rtems_event_send: task readied -- preempts caller 81

        rtems_event_receive: obtain current events 1

        rtems_event_receive: available 34

        rtems_event_receive: not available -- NO_WAIT 31

        rtems_event_receive: not available -- caller blocks 84

        Signal Manager

        rtems_signal_catch 24

        rtems_signal_send: returns to caller 42

        rtems_signal_send: signal to self 47

        exit ASR overhead: returns to calling task 33

        exit ASR overhead: returns to preempting task 58

        Partition Manager

        rtems_partition_create 78

        rtems_partition_ident 342

        rtems_partition_delete 46

        rtems_partition_get_buffer: available 40

        rtems_partition_get_buffer: not available 39

        rtems_partition_return_buffer 47

        Region Manager

        rtems_region_create 65

        rtems_region_ident 349

        rtems_region_delete 45

        rtems_region_get_segment: available 55

        rtems_region_get_segment: not available -- NO_WAIT 52

        rtems_region_get_segment: not available -- caller blocks 119

        rtems_region_return_segment: no waiting tasks 57

        rtems_region_return_segment: task readied -- returns to caller 106

        rtems_region_return_segment: task readied -- preempts caller 127

        Dual-Ported Memory Manager

        rtems_port_create 40

        rtems_port_ident 342

        rtems_port_delete 44

        rtems_port_internal_to_external 32

        rtems_port_external_to_internal 32

        IO Manager

        rtems_io_initialize 4

        rtems_io_open 1

        rtems_io_close 1

        rtems_io_read 1

        rtems_io_write 1

        rtems_io_control 1

        Rate Monotonic Manager

        rtems_rate_monotonic_create 39

        rtems_rate_monotonic_ident 343

        rtems_rate_monotonic_cancel 43

        rtems_rate_monotonic_delete: active 54

        rtems_rate_monotonic_delete: inactive 52

        rtems_rate_monotonic_period: obtain status 37

        rtems_rate_monotonic_period: initiate period -- returns to caller 58

        rtems_rate_monotonic_period: conclude periods -- caller blocks 75

Porting

-------

This board support package is written for a 68360 system similar to that

described in chapter 9 of the Motorola MC68360 Quad Integrated Communication

Processor Users' Manual.  The salient features of this hardware are:

        25 MHz external clock

        DRAM address multiplexing provided by 68360

        8-bit 180nsec PROM to CS0*

        4 MBytes of 60 nsec parity DRAM (1Mx36) to RAS1*/CAS1*

        Console serial port on SMC1

        Ethernet interface on SCC1

The board support package has been tested with:

        A home-built 68360 board

        An ACE360A and an HSB board produced by:

                Atlas Computer Equipment

                703 Colina Lane

                Santa Barbara, CA 93103

        A 68040/68360 board (SBC360) produced by:

                Arnewsh Inc.

                P.O. Box 270352

                Fort Collins, CO 80527-0352