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2014-08-26ARM: tegra: Initialize flow controller from DTThierry Reding1-7/+37
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 <treding@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2014-07-17ARM: tegra: Use a function to get the chip IDThierry Reding1-3/+4
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 <treding@nvidia.com>
2014-07-17ARM: tegra: Sort includes alphabeticallyThierry Reding1-2/+2
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 <treding@nvidia.com>
2013-10-18ARM: tegra: add LP1 support code for Tegra124Joseph Lo1-0/+2
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 <josephl@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-07-19ARM: tegra: flowctrl: add support for cpu_suspend_enter/exitJoseph Lo1-0/+2
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 <josephl@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-01-28ARM: tegra20: flowctrl: add support for cpu_suspend_enter/exitJoseph Lo1-5/+33
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 <josephl@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-01-28ARM: tegra: Make variables staticHiroshi Doyu1-2/+2
No need to be public. Checked with: $ touch arch/arm/mach-tegra/*[ch] && make C=1 Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2012-11-15ARM: tegra30: flowctrl: add cpu_suspend_exter/exit functionJoseph Lo1-0/+47
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 <josephl@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
2012-11-05ARM: tegra: move iomap.h to mach-tegraStephen Warren1-2/+1
Nothing outside mach-tegra uses this file, so there's no need for it to be in <mach/>. 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 <swarren@nvidia.com>
2012-05-14ARM: tegra: Fix flow controller accessesPeter De Schrijver1-2/+2
flowctrl_write_cpu_csr uses the cpu halt offsets and vice versa. This patch fixes this bug. Reported-by: Dan Willemsen <dwillemsen@nvidia.com> Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> [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 <swarren@nvidia.com>
2012-02-26ARM: tegra: functions to access the flowcontrollerPeter De Schrijver1-0/+62
Introduce some functions to write to the flowcontroller registers. The flowcontroller controls CPU sleepstates and wakeup. Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com> Acked-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Olof Johansson <olof@lixom.net>
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