Initial installation method, Special redboot commands, Memory maps – Comtrol eCos User Manual
Page 245: Rebuilding redboot
Chapter 5. Installation and Testing
Configuration
Mode
Description
File
ROMRAM
[ROMRAM]
RedBoot running from
RAM, but contained in the
board’s flash boot sector.
redboot_ROMRAM.ecm
RAM
[RAM]
RedBoot running from
RAM with RedBoot in the
flash boot sector.
redboot_RAM.ecm
Initial Installation Method
RedBoot can be installed by directly programming the FLASH device in IC7 or by using the Fujitsu provided
software to download and install a version into the FLASH device. Complete instructions are provided separately.
Special RedBoot Commands
None.
Memory Maps
The memory map of this platform is fixed by the hardware (cannot be changed by software). The only attributes
which can be modified are control over cacheability, as noted below.
Address
Cache?
Resource
00000000-03EFFFFF
Yes
SDRAM (via plugin DIMM)
03F00000-03FFFFFF
No
SDRAM (used for PCI window)
10000000-1FFFFFFF
No
MB86943 PCI bridge
20000000-201FFFFF
No
SRAM
21000000-23FFFFFF
No
Motherboard resources
24000000-25FFFFFF
No
PCI I/O space
26000000-2FFFFFFF
No
PCI Memory space
30000000-FDFFFFFF
??
Unused
FE000000-FEFFFFFF
No
I/O devices
FF000000-FF1FFFFF
No
IC7 - RedBoot FLASH
FF200000-FF3FFFFF
No
IC8 - unused FLASH
FF400000-FFFFFFFF
No
Misc other I/O
NOTE: The only configuration currently suppored requires a 64MB SDRAM DIMM to be present on the CPU
card. No other memory configuration is supported at this time.
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