> P2 has two banks fitted with a pair of K4S561633F per Bank
> These give 4Meg x 16 bit x 4 blocks per chip giving 64MegBytes per Bank
> i.e. 128MegBytes in total.
>
> E1 has three banks fitted with a pair of K4M511633F per Bank
> These give 8Meg x 16 Bit x 4 Block per chip giving 128MegBytes per Bank
> i.e. 384Meg Bytes in Total
>
> However how much of this is available depends on which memory mode the PXA
> is in. In small mode only 256Meg of this is accessible, in large mode all of
> it is.
>
> I have now forgotten which mode we are running in (Nick....?)
>
We are in large memory mode but only the top two banks are useable to linux
in the current pxa implementation ie 1/4G. This will need resolving at some
point but so far it looks like having optional extra blocks of ram added
before existing blocks in physical memory and/or before PHYS_RAM breaks the
memory manager.
Nick
> David
(text/plain)