
Hi All,
I am currently working on MIPS board. I have a 32MB RAM.
The address that is shown in uboot when i type bdinfo if 0x80000000 and size is 0x1000000(16MB).
I want to increase the size to 32 MB as board has 32 MB RAM.
Interesting Finding:
When i write any data to 0x80000000 the same data is being written into 0x81000000. Same for all address in the range (data in 0x80000000 - 0x80ffffff is same as 0x81000000 - 0x81ffffff ). It seems that there is a dual mapping .
What might be the reason?
Please help

hi, I have the same problem, I have 512MB of RAM but uboot detects only 128MB.I have XCode board(MIPS). Pls help if you have already figured out the solution.
Rahanesh wrote:
Hi All,
I am currently working on MIPS board. I have a 32MB RAM.
The address that is shown in uboot when i type bdinfo if 0x80000000 and size is 0x1000000(16MB).
I want to increase the size to 32 MB as board has 32 MB RAM.
Interesting Finding:
When i write any data to 0x80000000 the same data is being written into 0x81000000. Same for all address in the range (data in 0x80000000 - 0x80ffffff is same as 0x81000000 - 0x81ffffff ). It seems that there is a dual mapping .
What might be the reason?
Please help
participants (2)
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fayazvf
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Rahanesh