Memory maps, Ethernet driver, Rebuilding redboot – Comtrol eCos User Manual
Page 269: Superh/sh4(sh7751) hitachi solution engine 7751, Overview
Chapter 5. Installation and Testing
Memory Maps
RedBoot sets up the following memory map on the SE77x9 board.
Physical Address Range
Description
----------------------- -----------
0x80000000 - 0x803fffff Flash (MBM29LV160)
0x81000000 - 0x813fffff EPROM (M27C800)
0x8c000000 - 0x8dffffff SDRAM
0xb0000000 - 0xb03fffff Ethernet (DP83902A)
0xb0400000 - 0xb07fffff SuperIO (FDC37C935A)
0xb0800000 - 0xb0bfffff Switches
0xb0c00000 - 0xbfffffff LEDs
0xb1800000 - 0xb1bfffff PCMCIA (MaruBun)
Ethernet Driver
The ethernet driver uses a hardwired ESA which can, at present, only be changed in CDL.
Rebuilding RedBoot
These shell variables provide the platform-specific information needed for building RedBoot according to the
procedure described in
export TARGET=se77x9
export ARCH_DIR=sh
export PLATFORM_DIR=se77x9
The names of configuration files are listed above with the description of the associated modes.
SuperH/SH4(SH7751) Hitachi Solution Engine 7751
Overview
RedBoot uses the COM1 serial port. The default serial port settings are 38400,8,N,1. Ethernet is also supported
using the 10-base T connector. Management of onboard flash is also supported.
The following RedBoot configurations are supported:
Configuration
Mode
Description
File
ROM
[ROM]
RedBoot running from the
board’s flash boot sector.
redboot_ROM.ecm
165