AT91: Fix power-saving in idle-mode on 926T processors

[Jean-Christophe PLAGNIOL-VILLARD]

On 21:44 Thu 07 Oct     , Anders Larsen wrote:
> According to Atmel, their 926T processors (AT91 post RM9200) requires
> 'Wait for Interrupt' mode be entered right after disabling the processor clock
> in order to minimise current consumption when idle, so do both provided we're
> not running on a 920T (an RM9200).
> 
> Furthermore, get rid of the #ifndef CONFIG_DEBUG_KERNEL, since arch_idle()
> can be turned off completely with the kernel parameter 'nohlt'.
> 
> Signed-off-by: Anders Larsen <al at alarsen.net>
> Cc: Andrew Victor <avictor.za at gmail.com>
please rebase against this branch

git://github.com/at91linux/linux-2.6-at91.git branch for-rmk

Best Regards,
J.