[PATCH V3 0/5] ARM: OMAP2+: Add device-tree support for timers

Jon Hunter jon-hunter at ti.com
Wed Oct 17 14:01:08 EDT 2012

This series adds device-tree support for the timers on OMAP2+ devices
including AM33xx.

1. I have booted tested this series on OMAP2420 H4, OMAP3430 Beagle, OMAP4430
   Panda and AM335x Beagle Bone with/without ...
   a). device-tree present
   b). CONFIG_OMAP_32K_TIMER set
   c). kernel boot parameter "clocksource=gp_timer" present
2. I have tested the all the timers (not used by the kernel as sys-timers) on
   OMAP2420 H4, OMAP3430 Beagle and OMAP4430 Panda with/without device-tree with
   this series. The testing includes ...
   a. Configuring, starting a timer and checking the counter value is
   b. Testing timer overflow interrupt when timer expires.
   c. Using different clock sources to operate the timer with.

V3 changes:
- Removed definition "TIMER_PROP_ALWON" per Rob Herring's feedback
- Updated OMAP system timer (clock-events and clock-source) code so that
  HWMOD is NOT used for getting resource (memory and interrupt) information
  when device-tree is present.

V2 changes:
- Remove use of device-tree alias property
- Migrate OMAP timers to request timers by property instead of device ID
- Include OMAP2 support

Jon Hunter (5):
  ARM: dts: OMAP: Add timer nodes
  ARM: OMAP3: Dynamically disable secure timer nodes for secure devices
  ARM: OMAP: Add function to request a timer by capability
  ARM: OMAP3: Add generic machine descriptor for boards with OMAP3 GP
  ARM: OMAP: Add DT support for timer driver

 .../devicetree/bindings/arm/omap/timer.txt         |   29 ++++
 arch/arm/boot/dts/am33xx.dtsi                      |   61 +++++++
 arch/arm/boot/dts/omap2.dtsi                       |   86 ++++++++++
 arch/arm/boot/dts/omap2420.dtsi                    |    8 +
 arch/arm/boot/dts/omap2430.dtsi                    |    8 +
 arch/arm/boot/dts/omap3.dtsi                       |   96 +++++++++++
 arch/arm/boot/dts/omap4.dtsi                       |   86 ++++++++++
 arch/arm/mach-omap2/board-generic.c                |   17 ++
 arch/arm/mach-omap2/timer.c                        |  174 ++++++++++++++++----
 arch/arm/plat-omap/dmtimer.c                       |   93 ++++++++++-
 arch/arm/plat-omap/include/plat/dmtimer.h          |    1 +
 11 files changed, 622 insertions(+), 37 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/arm/omap/timer.txt


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