This series adds device-tree support for the timers on OMAP2+ devices
including AM33xx. Based upon v3.7-rc1.
Testing:
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
incrementing.
b. Testing timer overflow interrupt when timer expires.
c. Using different clock sources to operate the timer with.
V4 changes:
- Update timer binding to make "interrupt-parent" a required property. After
reviewing the of_irq_find_parent() function it became apparent that it is
much more efficient, in terms of parsing the DT blob, to have the interrupt
parent defined in the timer binding than globally.
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
devices
ARM: OMAP: Add DT support for timer driver
.../devicetree/bindings/arm/omap/timer.txt | 34 ++++
arch/arm/boot/dts/am33xx.dtsi | 61 +++++++
arch/arm/boot/dts/omap2.dtsi | 96 +++++++++++
arch/arm/boot/dts/omap2420.dtsi | 9 +
arch/arm/boot/dts/omap2430.dtsi | 9 +
arch/arm/boot/dts/omap3.dtsi | 107 ++++++++++++
arch/arm/boot/dts/omap4.dtsi | 97 +++++++++++
arch/arm/mach-omap2/board-generic.c | 17 ++
arch/arm/mach-omap2/timer.c | 175 ++++++++++++++++----
arch/arm/plat-omap/dmtimer.c | 93 ++++++++++-
arch/arm/plat-omap/include/plat/dmtimer.h | 1 +
11 files changed, 661 insertions(+), 38 deletions(-)
create mode 100644 Documentation/devicetree/bindings/arm/omap/timer.txt
--
1.7.9.5
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