tqm8xx

Summary

BSP NAME:           tqm8xx
BOARD:              various boards based on TQ Components TQM8xx modules
BUS:                No backplane. 
CPU FAMILY:         PowerPC
CPU:                PowerPC MPC860 or MPC866
COPROCESSORS:       Built-in Motorola QUICC
MODE:               32 bit mode
 
BOOT MONITOR:       TQMon 

PERIPHERALS

TIMERS:             PIT / Timebase
  RESOLUTION:       1 microsecond / frequency = clock-speed / 16
SERIAL PORTS:       1-4 SCCs, 1-2 SMC
REAL-TIME CLOCK:    <none>
DMA:                Each SCC and SMC.
VIDEO:              <none>
SCSI:               <none>
NETWORKING:         Ethernet 10 Mbps on SCC1 and/or 
                    10/100Mbps on FEC (for MPC866T)         

DRIVER INFORMATION

CLOCK DRIVER:       yes
CONSOLE DRIVER:     yes
SHMSUPP:            N/A
TIMER DRIVER:       yes
NETWORK DRIVER:     yes

NOTES

On-chip resources:
    SCC1        network or serial port
    SCC2        serial port
    SCC3        serial port
    SCC4        serial port
    SMC1        serial port
    SMC2        serial port
    CLK1        network
    CLK2        network
    CLK3
    CLK4
    CLK5
    CLK6
    CLK7
    CLK8
    BRG1        console
    BRG2        console
    BRG3        console
    BRG4        console
    RTC
    PIT     clock
    TB
    DEC
    SWT 
    UPMA
    UPMB
    IRQ0
    IRQ1
    IRQ2        
    IRQ3        
    IRQ4        
    IRQ5    
    IRQ6
    IRQ7
    IRQ_LVL0    
    IRQ_LVL1
    IRQ_LVL2
    IRQ_LVL3
    IRQ_LVL4
    IRQ_LVL5
    IRQ_LVL6
    IRQ_LVL7

Board description

Clock rate:     50MHz - 133MHz.
Bus width:      32 bit Flash, 32 bit DRAM
FLASH:          2-8MB
RAM:            32-256MB SDRAM

Console driver

This BSP contains a console driver for polled and interrupt-driven operation. It supports SCCs and SMCs. During BSP configuration, various variables can be set to activate a certain channels and to specify the console channel:

CONS_SMC1_MODE, CONS_SMC2_MODE, CONS_SCC[1-4]_MODE can be set to CONS_MODE_UNUSED, CONS_MODE_POLLED or CONS_MODE_IRQ

The driver always uses termios.

Floating-point

The MPC8xx do not have floating-point units. All code should get compiled with the appropriate -mcpu flag. The nof variants of the gcc runtime libraries should be used for linking.

Miscellaneous

All development was based on the mbx8xx and gen68360 port.

Test Configuration

Board:                pghplus
CPU:                  Motorola MPC866T
Clock Speed:          133MHz
RAM:                  64MByte
Cache Configuration:  Instruction cache on; data cache on, copyback mode.