linux-toradex.git/arch/arm/mach-tegra/flowctrl.c, branch v4.2.7

ARM: tegra: Initialize flow controller from DT

2014-08-26T17:43:55+00:00

Use a matching device tree node to initialize the flow controller driver
instead of hard-coding the I/O address. This is necessary to get rid of
the iomap.h include, which in turn make it easier to share this code
with 64-bit Tegra SoCs.

Signed-off-by: Thierry Reding 
Signed-off-by: Stephen Warren

ARM: tegra: Use a function to get the chip ID

2014-07-17T11:36:41+00:00

Instead of using a simple variable access to get at the Tegra chip ID,
use a function so that we can run additional code. This can be used to
determine where the chip ID is being accessed without being available.
That in turn will be handy for resolving boot sequence dependencies in
order to convert more code to regular initcalls rather than a sequence
fixed by Tegra SoC setup code.

Signed-off-by: Thierry Reding

ARM: tegra: Sort includes alphabetically

2014-07-17T11:29:57+00:00

If these aren't sorted alphabetically, then the logical choice is to
append new ones, however that creates a lot of potential for conflicts
because every change will then add new includes in the same location.

Signed-off-by: Thierry Reding

ARM: tegra: add LP1 support code for Tegra124

2013-10-18T22:28:10+00:00

The LP1 suspend procedure is the same with Tegra30 and Tegra114. Just
need to update the difference of the register address, then we can
continue to share the code.

Signed-off-by: Joseph Lo 
Signed-off-by: Stephen Warren

ARM: tegra: flowctrl: add support for cpu_suspend_enter/exit

2013-07-19T16:08:08+00:00

The flow controller can help CPU to go into suspend mode (powered-down
state). When CPU goes into powered-down state, it needs some careful
settings before getting into and after leaving. The enter and exit
functions do that by configuring appropriate mode for flow controller.

For Tegra114, the setting is compatible with Tegra30.

Signed-off-by: Joseph Lo 
Signed-off-by: Stephen Warren

ARM: tegra20: flowctrl: add support for cpu_suspend_enter/exit

2013-01-28T18:20:38+00:00

The flow controller can help CPU to go into suspend mode (powered-down
state). When CPU go into powered-down state, it needs some careful
settings before getting into and after leaving. The enter and exit
functions do that by configuring appropriate mode for flow controller.

Signed-off-by: Joseph Lo 
Signed-off-by: Stephen Warren

ARM: tegra: Make variables static

2013-01-28T17:21:28+00:00

No need to be public. Checked with:
  $ touch arch/arm/mach-tegra/*[ch] && make C=1

Signed-off-by: Hiroshi Doyu 
Signed-off-by: Stephen Warren

ARM: tegra30: flowctrl: add cpu_suspend_exter/exit function

2012-11-15T22:09:21+00:00

The flow controller can help CPU to go into suspend mode (powered-down
state). When CPU go into powered-down state, it needs some careful
settings before getting into and after leaving. The enter and exit
functions do that by configuring appropriate mode for flow controller.

Signed-off-by: Joseph Lo 
Signed-off-by: Stephen Warren

ARM: tegra: move iomap.h to mach-tegra

2012-11-05T18:36:06+00:00

Nothing outside mach-tegra uses this file, so there's no need for it to
be in .

Since uncompress.h and debug-macro.S remain in include/mach, they need
to include "../../iomap.h" becaue of this change. uncompress.h will soon
be deleted in later multi-platform/single-zImage patches. debug-macro.S
will need to continue to include this header using an explicit relative
path, to avoid duplicating the physical->virtual address mapping that
iomap.h dictates.

Signed-off-by: Stephen Warren

ARM: tegra: Fix flow controller accesses

2012-05-14T16:22:01+00:00

flowctrl_write_cpu_csr uses the cpu halt offsets and vice versa. This patch
fixes this bug.

Reported-by: Dan Willemsen 
Signed-off-by: Peter De Schrijver 
[swarren: This problem was introduced in v3.4-rc1, in commit 26fe681 "ARM:
 tegra: functions to access the flowcontroller", when this file was first
 added]
Signed-off-by: Stephen Warren