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Platform Memory Layout
- From: "Michael Anburaj" <embeddedeng at hotmail dot com>
- To: ecos-discuss at sources dot redhat dot com
- Date: Wed, 11 Jun 2003 10:19:47 +0000
- Subject: [ECOS] Platform Memory Layout
- Bcc:
Hi,
I am working on a port for an ARM920T & took aaed2000 under /hall/arm/arm9
as the sample. I considered the ROMRAM configuration for redboot. The
following is from the mlt_arm_arm9_aaed2000.ldi:
MEMORY
{
ram : ORIGIN = 0, LENGTH = 0x1F40000
lcd : ORIGIN = 0x1f60000, LENGTH = 0xa0000
}
SECTIONS
{
SECTIONS_BEGIN
SECTION_fixed_vectors (ram, 0x20, LMA_EQ_VMA)
SECTION_rom_vectors (ram, 0x8000, LMA_EQ_VMA)
Questions:
1. Can anyone tell me or lead me to a document about the regions (for ARM),
fixed_vector & rom_vector?
2. If fixed_vectors is the ARM's exception vectors, then this should be at
0x0000.0000. But, here I see that it's laid at 0x20 instead. Am I missing
something?
3. I don't find the memory configuration window in the configtool (linux).
Thanks a lot,
-Mike.
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