[ts-7000] TS-7250 with 2.6.21 kernel not recognizing 128MB option

["ifelldownandhitmyhead" <>]

We've just received a few of the TS-7250 systems with the 128MB SDRAM
option.  It would seem that this isn't a very common option?

Our existing 64MB systems are happily using the 2.6.21 kernel from
TS's FTP site, which does not seem to support the extra RAM on the
128MB TS-7250.  However, the 2.4 kernel shipped on the boards seems to
work fine with the extra RAM.

I can see the following info on the console when loading the 2.6
kernel via TFTP:
 
Linux version 2.6.21-ts  gcc version 3.4.4 
release CodeSourcery ARM 2005q3-2 1 PREEMPT Thu Nov 15 15:32:52 MST 2007
CPU: ARM920T [41129200] revision 0 ARMv4T, cr=40007177
Machine: Technologic Systems TS-72xx SBC
Ignoring memory bank 0xe0000000 size 8192KB
Ignoring memory bank 0xe1000000 size 8192KB
Ignoring memory bank 0xe4000000 size 8192KB
Ignoring memory bank 0xe5000000 size 8192KB
Ignoring memory bank 0xe2000000 size 8192KB
Ignoring memory bank 0xe3000000 size 8192KB
Ignoring memory bank 0xe6000000 size 8192KB
Ignoring memory bank 0xe7000000 size 8192KB
Memory policy: ECC disabled, Data cache writeback
CPU0: D VIVT write-back cache
CPU0: I cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets
CPU0: D cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets

It appears that the extra memory is being seen but is excluded for
some reason.  If I try to pass mem=128 (or any other value) as a
kernel parameter, the kernel never begins execution.

Is there a patch available to enable support for the additional memory
in the 2.6 kernel or perhaps a kernel option I need to activate that
I've overlooked in the TS-7250 2.6.21 kernel?

Thanks




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