On Aug 27, 2009, at 12:30 PM, Anton Vorontsov wrote:
This patch adds suspend/resume support for MPC8540-compatible and
MPC8569 CPUs.
MPC8540-compatible PMCs are trivial: we just write SLP bit into PM
control and status register.
MPC8569 is a bit trickier, QE turns off during suspend and so on
resume we must reload QE microcode firmware and reset QE.
So far we don't support Deep Sleep mode as found in newer MPC85xx
CPUs (i.e. MPC8536). It can be relatively easy implemented though,
and for it we reserve 'mem' suspend type.
Signed-off-by: Anton Vorontsov <avoront...@ru.mvista.com>
---
arch/powerpc/Kconfig | 2 +-
arch/powerpc/platforms/85xx/Makefile | 1 +
arch/powerpc/platforms/85xx/suspend.c | 115 ++++++++++++++++++++++++
+++++++++
3 files changed, 117 insertions(+), 1 deletions(-)
create mode 100644 arch/powerpc/platforms/85xx/suspend.c
How did you test this?
I'd also like to get Scott's Ack on this and the device tree patches
before accepting them.
- k
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