Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This patch adds code to resume L2 before MMU is enabled in
suspend and cpuidle resume paths. s3c_cpu_resume is moved to the
data section with appropriate comments.
Signed-off-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: NAmit Daniel Kachhap <amit.kachhap@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

The sleep code for S5PV210 and EXYNOS4 are identical; moreover
S5p64X0 and S5PC100 for which support will be added soon can
use the same procedure. Create a common sleep code in the plat-s5p
directory so that it can be re-used.
Signed-off-by: NAbhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Move the call to cpu_suspend into C code, and noticing that all the
s3c_cpu_save implementations are now identical, we can move this
into the common samsung code.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

s3c_cpu_save does not need to save any registers with the new
cpu_suspend calling convention.  Remove these redundant instructions.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

cpu_suspend() has a weird calling method which makes it only possible to
call from assembly code: it returns with a modified stack pointer to
finish the suspend, but on resume, it 'returns' via a provided pointer.

We can make cpu_suspend() appear to be a normal function merely by
swapping the resume pointer argument and the link register.

Do so, and update all callers to take account of this more traditional
behaviour.
Acked-by: NFrank Hofmann <frank.hofmann@tomtom.com>
Tested-by: NKevin Hilman <khilman@ti.com>
Acked-by: NJean Pihet <j-pihet@ti.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

This patch adds support suspend to ram for EXYNOS4210.
As a note, this includes function of outer cache flush
because it is used before entering PM.
Signed-off-by: NJaecheol Lee <jc.lee@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>