On Thu, Mar 19, 2009 at 12:24:26AM -0700, Li Yang-R58472 wrote:

quoted

-----Original Message-----
From: linuxppc-dev-bounces+leoli=freescale.com@ozlabs.org 
[mailto:linuxppc-dev-bounces+leoli=freescale.com@ozlabs.org] 
On Behalf Of Soohyung Cho
Sent: Thursday, March 19, 2009 1:47 PM
To: linuxppc-dev@ozlabs.org; Wood Scott-B07421
Subject: suspend-to-mem on the mpc8349e-mitx-gp?

Hello.

I need to enable suspend-to-mem(deep sleep) on my 
mpc8349e-mitx-gp box.
When I send "mem" message to /sys/power/state, the box seems 
to get stop.
I think the box get stop when it executes suspend-asm.S codes.

I know that the latest linux supports suspend-to-mem on the 
mpc8313erdb box well.
Is it impossible to enable suspend-to-mem on the mpc8349e-mitx-gp?

I don't think the MPC8349 hardware has the deep sleep functionality.

However, the code should treat "mem" as "standby" on chips that don't
support deep sleep.  What does the device tree look like (the upstream
device tree for that board does not have any reference to the PMC)?  What
kernel are you using?

-Scott