Comtrol eCos - Manual (Page 224)

Chapter 5. Installation and Testing
Memory Maps
RedBoot sets up the following memory map on the iPAQ: The first level page table is located at physical address
0xC0004000. No second level tables are used.
NOTE: The virtual memory maps in this section use a C and B column to indicate whether or not the region is
cached (C) or buffered (B).
Physical Address Range Description
----------------------- ----------------------------------
0x00000000 - 0x01ffffff 16Mb to 32Mb FLASH (nCS0) [organized as below]
0x000000 - 0x0003ffff Parrot Loader
0x040000 - 0x0007ffff RedBoot
0xf80000 - 0x00fbffff Fconfig data
0xfc0000 - 0x00ffffff FIS directory
0x30000000 - 0x3fffffff Compact Flash
0x48000000 - 0x4bffffff iPAQ internal registers
0x80000000 - 0xbfffffff SA-1110 Internal Registers
0xc0000000 - 0xc1ffffff DRAM Bank 0 - 32Mb SDRAM
0xe0000000 - 0xe7ffffff Cache Clean
Virtual Address Range C B Description
----------------------- - - ----------------------------------
0x00000000 - 0x01ffffff Y Y DRAM - 32Mb
0x30000000 - 0x3fffffff N N Compact Flash
0x48000000 - 0x4bffffff N N iPAQ internal registers
0x50000000 - 0x51ffffff Y Y Up to 32Mb FLASH (nCS0)
0x80000000 - 0xbfffffff N N SA-1110 Internal Registers
0xc0000000 - 0xc1ffffff N Y DRAM Bank 0: 32Mb
0xe0000000 - 0xe7ffffff Y Y Cache Clean
Rebuilding RedBoot
These shell variables provide the platform-specific information needed for building RedBoot according to the
procedure described in
Chapter 3 :
export TARGET=ipaq
export ARCH_DIR=arm
export PLATFORM_DIR=sa11x0/ipaq
The names of configuration files are listed above with the description of the associated modes.
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