POWER6 not seeing memory above 2Gb

[Adam Stouffer <adamstouffer13@gmail.com>]

Hello all, I'm new to the list and just installed jessie on my IBM
8203-E4A box. It's a dual core 4.2Ghz with 16Gb of memory.

But anyhow like the subject says the kernel is only reporting 2Gb of
available memory. I tried appending "mem=16G" as a boot argument but
no change.

Here is the output from dmesg with kernel 3.16.0

[    0.000000] physicalMemorySize            = 0x80000000
[    0.000000] Node 0 Memory: 0x0-0x80000000
[    0.000000] Early memory node ranges
[    0.000000] Memory: 1899264K/2097152K available (7360K kernel code,
1792K rwdata, 1840K rodata, 960K init, 2071K bss, 197888K reserved)
[    0.023173] Initializing cgroup subsys memory
[    1.036652] Freeing initrd memory: 16384K (c000000003480000 -
c000000004480000)
[    1.242857] Freeing unused kernel memory: 960K (c000000000910000 -
c000000000a00000)

Any ideas? Thanks.