We have a mixture of different devices with different register layouts,
but we group all the bits together in an opaque mess.  Split them out
into those which are L2C-310 specific and ones which refer to earlier
devices.  Provide full auxiliary control register definitions.
Acked-by: NTony Lindgren <tony@atomide.com>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Acked-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Since Exynos SoCs does not follow most of the semantics of older SoCs
when configuring the system to enter sleep, there is no reason to rely
on the legacy Samsung PM core anymore.

This patch adds local Exynos suspend ops and removes all the code left
unnecessary. As a side effect, suspend support on Exynos becomes
multiplatform-friendly.
Signed-off-by: NTomasz Figa <t.figa@samsung.com>
Acked-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Trying to resume l2x0 if it was not enabled before suspend leads to
system crash. This patch prevents this by checking if l2x0_regs_phys is
a valid pointer to l2x0 context data saved on initialization.
Signed-off-by: NTomasz Figa <t.figa@samsung.com>
Acked-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Only cortex-a9 based samsung platforms have l2x0 cache controller. Hence check
the same before restoring the cache in resume.

This is needed for single kernel image.
Signed-off-by: NInderpal Singh <inderpal.singh@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

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>