The MSM SOC's DMA controller contains several security domains.
On the MSM7x00, only security domain 3 is accessible to our CPU.
The 7x30, however, uses security domain 2.  Fix up the register
definition macros to select this appropriately, based on
configured target.
Signed-off-by: NDaniel Walker <dwalker@codeaurora.org>
Signed-off-by: NDavid Brown <davidb@codeaurora.org>
Signed-off-by: NGregory Bean <gbean@codeaurora.org>
Signed-off-by: NAbhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: NStepan Moskovchenko <stepanm@codeaurora.org>

Based on a patch from Brent DeGraaf:

"The datamover supports channels which can be shared amongst devices.
As a result, the actual data transfer may occur some time after the
request is queued up. Some devices such as mmc host controllers
will timeout if a command is issued too far in advance of the actual
transfer, so if dma to other devices on the same channel is already
in progress or queued up, the added delay can cause pending transfers
to fail before they start. This change extends the api to allow a
user callback to be invoked just before the actual transfer takes
place, thus allowing actions directly associated with the dma
transfer, such as device commands, to be invoked with precise timing.
Without this mechanism, there is no way for a driver to realize
this timing. Also adds a user pointer to the command structure for use
by the caller to reference information that may be needed by the
callback routine for proper identification and processing associated
with that specific request. This change is necessary to fix problems
associated with excessive command timeouts and race conditions in the
mmc driver."

This patch also fixes all the callers of msm_dmov_enqueue_cmd() to
ensure their callback function is NULL.
Signed-off-by: NSan Mehat <san@google.com>
Cc: Brent DeGraaf <bdegraaf@quicinc.com>
Cc: Brian Swetland <swetland@google.com>
Signed-off-by: NDaniel Walker <dwalker@codeaurora.org>

San:
- Propagate DM errors to the originator of the request.
- Implement msm_dmov_stop_cmd()
- Add return value to init code
- Modify msm_dmov_stop_cmd() to support ungraceful flushing

Arve:
- Disable datamover interrupt when not in use.
  We turn off the interrrupt to allow power collapse from idle.
Signed-off-by: NSan Mehat <san@android.com>
Signed-off-by: NArve Hjønnevåg <arve@android.com>
Signed-off-by: NBrian Swetland <swetland@google.com>

This just leaves include/asm-arm/plat-* to deal with.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Signed-off-by: NBrian Swetland <swetland@google.com>

- core header files for arch-msm
- Kconfig and Makefiles to enable ARCH_MSM7X00A builds
- MSM7X00A specific arch_idle
- peripheral iomap and irq number definitions
Signed-off-by: NBrian Swetland <swetland@google.com>