[PATCH 1/4] powerpc/83xx: Add power management support for MPC837x boards

[Kumar Gala]

On Mar 19, 2009, at 1:01 PM, Anton Vorontsov wrote:

> This patch adds pmc nodes to the device tree files so that the boards
> will able to use standby capability of MPC837x processors. The MPC837x
> PMC controllers are compatible with MPC8349 ones (i.e. no deep sleep).
>
> sleep = <> properties are used to specify SCCR masks as described
> in "Specifying Device Power Management Information (sleep property)"
> chapter in Documentation/powerpc/booting-without-of.txt.
>
> Since I2C1 and eSDHC controllers share the same clock source, they
> are now placed under sleep-nexus nodes.
>
> A processor is able to wakeup the boards on LAN events (Wake-On-Lan),
> console events (with no_console_suspend kernel command line), GPIO
> events and external IRQs (IRQ1 and IRQ2).
>
> The processor can also wakeup the boards by the fourth general purpose
> timer in GTM1 block, but the GTM wakeup support isn't yet implemented
> (it's tested to work, but it's unclear how can we use the quite short
> GTM timers, and how do we want to expose the GTM to userspace).
>
> Signed-off-by: Anton Vorontsov <avorontsov at ru.mvista.com>
> ---
> arch/powerpc/boot/dts/mpc8377_mds.dts |   68 ++++++++++++++++-------
> arch/powerpc/boot/dts/mpc8377_rdb.dts |   98 ++++++++++++++++++++ 
> +------------
> arch/powerpc/boot/dts/mpc8378_mds.dts |   66 +++++++++++++++-------
> arch/powerpc/boot/dts/mpc8378_rdb.dts |   96 +++++++++++++++++++ 
> +------------
> arch/powerpc/boot/dts/mpc8379_mds.dts |   68 ++++++++++++++++-------
> arch/powerpc/boot/dts/mpc8379_rdb.dts |   98 ++++++++++++++++++++ 
> +------------
> 6 files changed, 323 insertions(+), 171 del

applied to next

- k