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u-boot/doc/README.cmi

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* Patch by Martin Winistoerfer, 23 Mar 2003 - Add port to MPC555/556 microcontrollers - Add support for cmi customer board with Intel 28F128J3A, 28F320J3A or 28F640J3A flash. * Patch by Rick Bronson, 28 Mar 2003: - fix common/cmd_nand.c
2003-03-31 17:27:09 +00:00
Summary:
========
This file contains information about the cmi board configuration.
* Code cleanup: - remove trailing white space, trailing empty lines, C++ comments, etc. - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c) * Patches by Kenneth Johansson, 25 Jun 2003: - major rework of command structure (work done mostly by Michal Cendrowski and Joakim Kristiansen)
2003-06-27 21:31:46 +00:00
Please see cmi_mpc5xx_config for further details. The cmi board is
a customer specific board but should work with small modifications
on every board which has a MPC5xx and either a 28F128J3A,
* Patch by Martin Winistoerfer, 23 Mar 2003 - Add port to MPC555/556 microcontrollers - Add support for cmi customer board with Intel 28F128J3A, 28F320J3A or 28F640J3A flash. * Patch by Rick Bronson, 28 Mar 2003: - fix common/cmd_nand.c
2003-03-31 17:27:09 +00:00
28F320J3A or 28F640J3A Intel flash mounted.
Board Discription:
==================
* Motorola MPC555
* RS232 connection
* Intel flash 28F640J3A
* Micron SRAM 1M
* Altera PLD
* Code cleanup: - remove trailing white space, trailing empty lines, C++ comments, etc. - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c) * Patches by Kenneth Johansson, 25 Jun 2003: - major rework of command structure (work done mostly by Michal Cendrowski and Joakim Kristiansen)
2003-06-27 21:31:46 +00:00
* Patch by Martin Winistoerfer, 23 Mar 2003 - Add port to MPC555/556 microcontrollers - Add support for cmi customer board with Intel 28F128J3A, 28F320J3A or 28F640J3A flash. * Patch by Rick Bronson, 28 Mar 2003: - fix common/cmd_nand.c
2003-03-31 17:27:09 +00:00
Bootstrap:
==========
In contrast to the usual boot sequence used in U-Boot, on the
cmi board we don't boot from the external flash directly.
Because of we use a 16-bit flash and don't sample a RCW
* Code cleanup: - remove trailing white space, trailing empty lines, C++ comments, etc. - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c) * Patches by Kenneth Johansson, 25 Jun 2003: - major rework of command structure (work done mostly by Michal Cendrowski and Joakim Kristiansen)
2003-06-27 21:31:46 +00:00
from the data bus to set the startup buswidth to 16-bit.
* Patch by Martin Winistoerfer, 23 Mar 2003 - Add port to MPC555/556 microcontrollers - Add support for cmi customer board with Intel 28F128J3A, 28F320J3A or 28F640J3A flash. * Patch by Rick Bronson, 28 Mar 2003: - fix common/cmd_nand.c
2003-03-31 17:27:09 +00:00
Unfortunatly the default width, sampled from the default RCW
is 32-bit. For this reason we burn the proper RCW into the
internal flash shadow location and boot after power-on or
reset from the internal flash and then branch to 0x02000100
where the U-Boot reset vector handler is located.
Memory Map:
===========
Memory Map after relocation:
* Code cleanup: - remove trailing white space, trailing empty lines, C++ comments, etc. - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c) * Patches by Kenneth Johansson, 25 Jun 2003: - major rework of command structure (work done mostly by Michal Cendrowski and Joakim Kristiansen)
2003-06-27 21:31:46 +00:00
0x0000 0000 CFG_SDRAM_BASE
* Patch by Martin Winistoerfer, 23 Mar 2003 - Add port to MPC555/556 microcontrollers - Add support for cmi customer board with Intel 28F128J3A, 28F320J3A or 28F640J3A flash. * Patch by Rick Bronson, 28 Mar 2003: - fix common/cmd_nand.c
2003-03-31 17:27:09 +00:00
:
0x000F 9FFF
:
* Code cleanup: - remove trailing white space, trailing empty lines, C++ comments, etc. - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c) * Patches by Kenneth Johansson, 25 Jun 2003: - major rework of command structure (work done mostly by Michal Cendrowski and Joakim Kristiansen)
2003-06-27 21:31:46 +00:00
:
0x0100 0000 CFG_IMMR (Internal memory map base adress)
* Patch by Martin Winistoerfer, 23 Mar 2003 - Add port to MPC555/556 microcontrollers - Add support for cmi customer board with Intel 28F128J3A, 28F320J3A or 28F640J3A flash. * Patch by Rick Bronson, 28 Mar 2003: - fix common/cmd_nand.c
2003-03-31 17:27:09 +00:00
:
0x0130 7FFF
:
* Code cleanup: - remove trailing white space, trailing empty lines, C++ comments, etc. - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c) * Patches by Kenneth Johansson, 25 Jun 2003: - major rework of command structure (work done mostly by Michal Cendrowski and Joakim Kristiansen)
2003-06-27 21:31:46 +00:00
:
* Patch by Martin Winistoerfer, 23 Mar 2003 - Add port to MPC555/556 microcontrollers - Add support for cmi customer board with Intel 28F128J3A, 28F320J3A or 28F640J3A flash. * Patch by Rick Bronson, 28 Mar 2003: - fix common/cmd_nand.c
2003-03-31 17:27:09 +00:00
0x0200 0000 CFG_FLASH_BASE
:
0x027C FFFF
:
:
0x0300 0000 PLD_BASE
Flash Partition:
* Code cleanup: - remove trailing white space, trailing empty lines, C++ comments, etc. - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c) * Patches by Kenneth Johansson, 25 Jun 2003: - major rework of command structure (work done mostly by Michal Cendrowski and Joakim Kristiansen)
2003-06-27 21:31:46 +00:00
0x0200 0000 Block 0 and 1 contain U-Boot except
* Patch by Martin Winistoerfer, 23 Mar 2003 - Add port to MPC555/556 microcontrollers - Add support for cmi customer board with Intel 28F128J3A, 28F320J3A or 28F640J3A flash. * Patch by Rick Bronson, 28 Mar 2003: - fix common/cmd_nand.c
2003-03-31 17:27:09 +00:00
: environment
:
0x0201 FFFF
0x0202 0000 Block 2 contains environment (.ppcenv)
:
* Code cleanup: - remove trailing white space, trailing empty lines, C++ comments, etc. - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c) * Patches by Kenneth Johansson, 25 Jun 2003: - major rework of command structure (work done mostly by Michal Cendrowski and Joakim Kristiansen)
2003-06-27 21:31:46 +00:00
0x0202 FFFF
* Patch by Martin Winistoerfer, 23 Mar 2003 - Add port to MPC555/556 microcontrollers - Add support for cmi customer board with Intel 28F128J3A, 28F320J3A or 28F640J3A flash. * Patch by Rick Bronson, 28 Mar 2003: - fix common/cmd_nand.c
2003-03-31 17:27:09 +00:00
See README file for futher information about U-Boot relocation
and partitioning.
Tested Features:
================
* U-Boot commands: go, loads, loadb, all memory features, printenv,
setenv, saveenv, protect, erase, fli, bdi, mtest, reset, version,
coninfo, help (see configuration file for available commands)
* Code cleanup: - remove trailing white space, trailing empty lines, C++ comments, etc. - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c) * Patches by Kenneth Johansson, 25 Jun 2003: - major rework of command structure (work done mostly by Michal Cendrowski and Joakim Kristiansen)
2003-06-27 21:31:46 +00:00
* Patch by Martin Winistoerfer, 23 Mar 2003 - Add port to MPC555/556 microcontrollers - Add support for cmi customer board with Intel 28F128J3A, 28F320J3A or 28F640J3A flash. * Patch by Rick Bronson, 28 Mar 2003: - fix common/cmd_nand.c
2003-03-31 17:27:09 +00:00
* Blinking led to indicate boot process
Added or Changed Files:
=======================
u-boot-0.2.0/board/cmi/*
u-boot-0.2.0/include/configs/cmi_mpc5xx.h
Regards,
Martin
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