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

This board support package works with several different versions of MC68360 systems. See the conditional-compile tests in startup/init68360.c for examples.

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. This version can be used with the Arnewsh SBC360 card.
If the preprocessor symbol M68360_ATLAS_HSB is defined, the BSP is compiled for an Atlas HSB card.
If the preprocessor symbol M68360_IMD_PGH is defined, the BSP is compiled for an IMD PGH360 card.
Otherwise, the BSP is compiled for a generic 68360 system as described in Chapter 9 of the MC68360 User's Manual. This version works with the Atlas ACE360 card.

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
BOARD:              IMD PGH Board (custom)
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

Board description

clock rate: 25 MHz bus width: 8-bit PROM/FLASH, 32-bit DRAM ROM: To 1 MByte, 180 nsec (3 wait states), chip select 0 RAM: 4 or 16 MBytes of 60 nsec parity DRAM (1Mx36) to RAS1*/CAS1*

Board description (IMD PGH)

clock rate: 25 MHz bus width: 8-bit PROM/FLASH, 32-bit DRAM ROM: 512KByte, 180 nsec (3 wait states), chip select 0 RAM: 16 MBytes of 60 nsec no-parity DRAM (1Mx32) to RAS1*/CAS1*

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 38
    fp context switch: restore 1st FP task 39
    fp context switch: save initialized, restore initialized 14
    fp context switch: save idle, restore initialized 15
    fp context switch: save idle, restore idle 41
    
    Task Manager
    
    rtems_task_create 202
    rtems_task_ident 390
    rtems_task_start 71
    rtems_task_restart: calling task 99
    rtems_task_restart: suspended task -- returns to caller 86
    rtems_task_restart: blocked task -- returns to caller 116
    rtems_task_restart: ready task -- returns to caller 88
    rtems_task_restart: suspended task -- preempts caller 132
    rtems_task_restart: blocked task -- preempts caller 153
    rtems_task_restart: ready task -- preempts caller 149
    rtems_task_delete: calling task 236
    rtems_task_delete: suspended task 191
    rtems_task_delete: blocked task 195
    rtems_task_delete: ready task 198
    rtems_task_suspend: calling task 78
    rtems_task_suspend: returns to caller 36
    rtems_task_resume: task readied -- returns to caller 39
    rtems_task_resume: task readied -- preempts caller 67
    rtems_task_set_priority: obtain current priority 26
    rtems_task_set_priority: returns to caller 59
    rtems_task_set_priority: preempts caller 110
    rtems_task_mode: obtain current mode 13
    rtems_task_mode: no reschedule 15
    rtems_task_mode: reschedule -- returns to caller 20
    rtems_task_mode: reschedule -- preempts caller 67
    rtems_task_wake_after: yield -- returns to caller 16
    rtems_task_wake_after: yields -- preempts caller 65
    rtems_task_wake_when 116
    
    Interrupt Manager
    
    interrupt entry overhead: returns to nested interrupt 10
    interrupt entry overhead: returns to interrupted task 10
    interrupt entry overhead: returns to preempting task 10
    interrupt exit overhead: returns to nested interrupt 8
    interrupt exit overhead: returns to interrupted task 10
    interrupt exit overhead: returns to preempting task 59
    
    Clock Manager
    
    rtems_clock_set 73
    rtems_clock_get 1
    rtems_clock_tick 16
    
    Timer Manager
    
    rtems_timer_create 31
    rtems_timer_ident 380
    rtems_timer_delete: inactive 43
    rtems_timer_delete: active 46
    rtems_timer_fire_after: inactive 53
    rtems_timer_fire_after: active 56
    rtems_timer_fire_when: inactive 72
    rtems_timer_fire_when: active 72
    rtems_timer_reset: inactive 47
    rtems_timer_reset: active 51
    rtems_timer_cancel: inactive 25
    rtems_timer_cancel: active 28
    
    Semaphore Manager
    
    rtems_semaphore_create 59
    rtems_semaphore_ident 438
    rtems_semaphore_delete 57
    rtems_semaphore_obtain: available 31
    rtems_semaphore_obtain: not available -- NO_WAIT 31
    rtems_semaphore_obtain: not available -- caller blocks 108
    rtems_semaphore_release: no waiting tasks 40
    rtems_semaphore_release: task readied -- returns to caller 56
    rtems_semaphore_release: task readied -- preempts caller 83
    
    Message Queue Manager
    
    rtems_message_queue_create 241
    rtems_message_queue_ident 379
    rtems_message_queue_delete 75
    rtems_message_queue_send: no waiting tasks 72
    rtems_message_queue_send: task readied -- returns to caller 72
    rtems_message_queue_send: task readied -- preempts caller 99
    rtems_message_queue_urgent: no waiting tasks 72
    rtems_message_queue_urgent: task readied -- returns to caller 72
    rtems_message_queue_urgent: task readied -- preempts caller 99
    rtems_message_queue_broadcast: no waiting tasks 43
    rtems_message_queue_broadcast: task readied -- returns to caller 82
    rtems_message_queue_broadcast: task readied -- preempts caller 109
    rtems_message_queue_receive: available 52
    rtems_message_queue_receive: not available -- NO_WAIT 34
    rtems_message_queue_receive: not available -- caller blocks 111
    rtems_message_queue_flush: no messages flushed 25
    rtems_message_queue_flush: messages flushed 34
    
    Event Manager
    
    rtems_event_send: no task readied 22
    rtems_event_send: task readied -- returns to caller 50
    rtems_event_send: task readied -- preempts caller 80
    rtems_event_receive: obtain current events -1
    rtems_event_receive: available 26
    rtems_event_receive: not available -- NO_WAIT 22
    rtems_event_receive: not available -- caller blocks 89
    
    Signal Manager
    
    rtems_signal_catch 16
    rtems_signal_send: returns to caller 32
    rtems_signal_send: signal to self 51
    exit ASR overhead: returns to calling task 42
    exit ASR overhead: returns to preempting task 58
    
    Partition Manager
    
    rtems_partition_create 74
    rtems_partition_ident 379
    rtems_partition_delete 40
    rtems_partition_get_buffer: available 29
    rtems_partition_get_buffer: not available 27
    rtems_partition_return_buffer 34
    
    Region Manager
    
    rtems_region_create 63
    rtems_region_ident 388
    rtems_region_delete 40
    rtems_region_get_segment: available 43
    rtems_region_get_segment: not available -- NO_WAIT 40
    rtems_region_get_segment: not available -- caller blocks 120
    rtems_region_return_segment: no waiting tasks 48
    rtems_region_return_segment: task readied -- returns to caller 98
    rtems_region_return_segment: task readied -- preempts caller 125
    
    Dual-Ported Memory Manager
    
    rtems_port_create 38
    rtems_port_ident 380
    rtems_port_delete 40
    rtems_port_internal_to_external 22
    rtems_port_external_to_internal 22
    
    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 36
    rtems_rate_monotonic_ident 380
    rtems_rate_monotonic_cancel 34
    rtems_rate_monotonic_delete: active 51
    rtems_rate_monotonic_delete: inactive 47
    rtems_rate_monotonic_period: obtain status 27
    rtems_rate_monotonic_period: initiate period -- returns to caller 50
    rtems_rate_monotonic_period: conclude periods -- caller blocks 72
 
Network tests:
       TCP throughput (as measured by ttcp):
               Receive: 1081 kbytes/sec
               Transmit: 953 kbytes/sec

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 A custom 68360 board (PGH360) produced by IMD