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Topic: wrt54Gv2 show 13MB of ram instead of 16MB, why ?

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Post #1
maxime1986
4 Oct 2009, 01:19

Hello

I am new on this forum.
I recently bought a wrt54Gv2 and install openwrt 8.09.1 on it. Everything works fine, except the wifi but I know that it is normal (I try with a trunk build vertion of openwrt but it didn't solve the problem).

But the free command show me : "Mem:        13708"
which mean 13 MB of sdram if I understand well the documentation I found.

My question is why 13 MB instead of 16MB as I expected ??

And if it is not normal .. how to recover the 3MB missing ?

Thank you in advance.

PS : Sorry for my bad english...


EDIT :

I precise that I have two "S6416AHTA-6B-E" memory chips which are 8 MB each ... : http://www.elpida.com/eolpdfs/E0439E70_EOL.pdf

(Last edited by maxime1986 on 4 Oct 2009, 02:16)

Post #2
maxime1986
4 Oct 2009, 03:45

It's ok I found the answer by myself ... : https://forum.openwrt.org/viewtopic.php … 617#p90617

It fact :

cat /proc/iomem 
00000000-00ffffff : System RAM
  00001000-002074c3 : Kernel code
  002074c4-002546bf : Kernel data
40000000-7fffffff : SSB PCIcore external memory
b8000300-b8000307 : serial
b8000400-b8000407 : serial

and 00ffffff = 16MB

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