[U-Boot] Uboot for Mips

[U-Boot] Uboot for Mips

[Rahanesh]

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
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[U-Boot] Uboot for Mips

[fayazvf]

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
> 

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