Signed-off-by: Alexey Klimov <klimov.linux@xxxxxxxxx> --- .../devicetree/bindings/timer/samsung,exynos4210-mct.txt | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/Documentation/devicetree/bindings/timer/samsung,exynos4210-mct.txt b/Documentation/devicetree/bindings/timer/samsung,exynos4210-mct.txt index 167d5da..c7f6354 100644 --- a/Documentation/devicetree/bindings/timer/samsung,exynos4210-mct.txt +++ b/Documentation/devicetree/bindings/timer/samsung,exynos4210-mct.txt @@ -36,6 +36,16 @@ Required properties: interrupt might be specified, meaning that all local timers use the same per processor interrupt. +Optional properties: + +- use-cp15-phys-counter : set to advise mct clocksource driver to use ARM + arch timer 64-bit counter as main counter. Access to this coprocessor + counter is faster than access to same counter in mct mmio region. + It was discovered that mct and ARM arch timer are same underlying hardware + on some SoCs. + Only supported for Exynos5-based 32-bit systems which follow the ARMv7 + architecture. + Example 1: In this example, the IP contains two local timers, using separate interrupts, so two local timer interrupts have been specified, in addition to four global timer interrupts. -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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