readme

RTEMS (Real-Time Executive for Multiprocessor Systems) is a free open source real-time operating sys

#
#  $Id: README,v 1.1 2001/11/08 23:46:58 joel Exp $
#

BSP NAME:           gen405
BOARD:              generic 405
BUS:                N/A
CPU FAMILY:         ppc
CPU:                PowerPC 405GP
COPROCESSORS:       N/A
MODE:               32 bit mode

DEBUG MONITOR:      

PERIPHERALS
===========
TIMERS:             405GP internal
SERIAL PORTS:       405GP internal 
REAL-TIME CLOCK:    405GP internal
DMA:                405GP internal
VIDEO:              none
SCSI:               none
NETWORKING:         none

DRIVER INFORMATION
==================
CLOCK DRIVER:       405GP internal
IOSUPP DRIVER:      405GP internal
SHMSUPP:            N/A
TIMER DRIVER:       405GP internal
TTY DRIVER:         405GP internal

STDIO
=====
PORT:               Console port 0
ELECTRICAL:         RS-232
BAUD:               115200
BITS PER CHARACTER: 8
PARITY:             None
STOP BITS:          1

Notes
=====

Board description
-----------------
clock rate:	234 MHz
ROM:		16MByte FLASH
RAM:		64MByte DRAM

gen405 only supports single processor operations.

Porting
-------
This board support package is written for a typical PPC405GP
system. The rough features of this board are described above.


For adapting this BSP to other boards, the following files should be
modified:

- c/src/lib/libbsp/powerpc/gen405/startup/linkcmds
	for the memory layout required

- c/src/lib/libbsp/powerpc/gen405/startup/bspstart.c
	for adaption of BSP_Configuration. here you can select
	the clock source for the timers and the serial interface
	(system clock or external clock pin), the clock rates, initial
	baud rate and other stuff

- c/src/lib/libbsp/powerpc/gen405/include/bsp.h
	some BSP-related constants

The actual drivers are placed in 
- c/src/lib/libcpu/powerpc/ppc403/*
	well, they should be generic, so there _should_ be no reason
	to mess around there (but who knows...)