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authorLeo Yan <leo.yan@linaro.org>2017-06-05 14:15:10 -0600
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-06-09 11:45:24 +0200
commita70fc83d3c50c5e3c69de66d4b13d8a1fbfbbe73 (patch)
treee863d0f8943851941fd1b1c06bf4bebc67bfe053 /Documentation/trace
parenta3959c50b02f57df4c4e4f14f632220f1c0b1f79 (diff)
coresight: bindings for CPU debug module
According to ARMv8 architecture reference manual (ARM DDI 0487A.k) Chapter 'Part H: External debug', the CPU can integrate debug module and it can support self-hosted debug and external debug. Especially for supporting self-hosted debug, this means the program can access the debug module from mmio region; and usually the mmio region is integrated with coresight. So add document for binding debug component, includes binding to APB clock; and also need specify the CPU node which the debug module is dedicated to specific CPU. Suggested-by: Mike Leach <mike.leach@linaro.org> Signed-off-by: Leo Yan <leo.yan@linaro.org> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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