Memory maps, Rebuilding redboot, Overview – Comtrol eCos User Manual

Page 251: Initial installation

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Chapter 5. Installation and Testing

Memory Maps

Memory Maps RedBoot sets up the following memory map on the Atlas board.

Physical Address Range Description

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

0x00000000 - 0x07ffffff SDRAM

0x08000000 - 0x17ffffff PCI Memory Space

0x18000000 - 0x1bdfffff PCI I/O Space

0x1be00000 - 0x1bffffff System Controller

0x1c000000 - 0x1dffffff System flash

0x1e000000 - 0x1e3fffff Monitor flash

0x1f000000 - 0x1fbfffff FPGA

Rebuilding RedBoot

These shell variables provide the platform-specific information needed for building RedBoot according to the
procedure described in

Chapter 3

:

export TARGET=atlas_mips32_4kc

export TARGET=atlas_mips64_5kc

export ARCH_DIR=mips

export PLATFORM_DIR=atlas

Use one of the TARGET settings only.

The names of configuration files are listed above with the description of the associated modes.

MIPS/MIPS32(CoreLV 4Kc)+MIPS64(CoreLV 5Kc) Malta Board

Overview

RedBoot supports both front facing serial ports and the built in ethernet port for communication and downloads.
The default serial port settings are 38400,8,N,1. RedBoot runs from and supports flash management for the system
flash region.

The following RedBoot configurations are supported:

Configuration

Mode

Description

File

ROM

[ROM]

RedBoot running from the
board’s flash boot sector.

redboot_ROM.ecm

RAM

[RAM]

RedBoot running from
RAM with RedBoot in the
flash boot sector.

redboot_RAM.ecm

147

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