[PATCH V5 1/5] ARM: exynos: Add support AFTR mode on EXYNOS4210

[Tushar Behera]

Hi Amit,

On 01/05/2012 09:55 AM, Amit Daniel Kachhap wrote:
> This patch adds support AFTR(ARM OFF TOP RUNNING) mode in
> cpuidle driver. L2 cache keeps their data in this mode.
> This patch ports the code to the latest interfaces to
> save/restore CPU state inclusive of CPU PM notifiers, l2
> resume and cpu_suspend/resume.
> 
> Signed-off-by: Jaecheol Lee <jc.lee at samsung.com>
> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi at arm.com>
> Signed-off-by: Amit Daniel Kachhap <amit.kachhap at linaro.org>
> ---
>  arch/arm/mach-exynos/cpuidle.c          |  149 ++++++++++++++++++++++++++++++-
>  arch/arm/mach-exynos/include/mach/pmu.h |    2 +
>  2 files changed, 148 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/arm/mach-exynos/cpuidle.c b/arch/arm/mach-exynos/cpuidle.c

-- snip --

> +static int exynos4_enter_core0_aftr(struct cpuidle_device *dev,
> +				struct cpuidle_driver *drv,
> +				int index)
> +{

-- snip --

> +
> +	scu_enable(S5P_VA_SCU);

#ifdef CONFIG_SMP
	scu_enable(S5P_VA_SCU);
#endif

This is required when compiling without SMP support.


-- 
Tushar Behera