From: Mathieu Poirier <mathieu.poirier@linaro.org>
To: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: devicetree@vger.kernel.org, coresight@lists.linaro.org,
linux-kernel@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
linux-arm-kernel@lists.infradead.org, mike.leach@linaro.org
Subject: Re: [RFC PATCH 14/14] dts: bindings: coresight: ETMv4.4 system register access only units
Date: Wed, 29 Jul 2020 11:20:58 -0600 [thread overview]
Message-ID: <20200729172058.GA3060370@xps15> (raw)
In-Reply-To: <20200722172040.1299289-15-suzuki.poulose@arm.com>
On Wed, Jul 22, 2020 at 06:20:40PM +0100, Suzuki K Poulose wrote:
> Document the bindings for ETMv4.4 and later with only system register
> access.
>
> Cc: Rob Herring <robh+dt@kernel.org>
> Cc: devicetree@vger.kernel.org
> Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
> Cc: Mike Leach <mike.leach@linaro.org>
> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
> ---
> Documentation/devicetree/bindings/arm/coresight.txt | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/arm/coresight.txt b/Documentation/devicetree/bindings/arm/coresight.txt
> index d711676b4a51..cfe47bdda728 100644
> --- a/Documentation/devicetree/bindings/arm/coresight.txt
> +++ b/Documentation/devicetree/bindings/arm/coresight.txt
> @@ -34,9 +34,13 @@ its hardware characteristcs.
> Program Flow Trace Macrocell:
> "arm,coresight-etm3x", "arm,primecell";
>
> - - Embedded Trace Macrocell (version 4.x):
> + - Embedded Trace Macrocell (version 4.x), with memory mapped access.
> "arm,coresight-etm4x", "arm,primecell";
>
> + - Embedded Trace Macrocell (version 4.4 and later) with system
> + register access only.
> + "arm,coresight-etm-v4.4";
I would rather call this "arm,coresight-etm-v4.4+" so that the binding's
semantic is still relevant when dealing with ETM v4.5 and onward.
Thanks,
Mathieu
> +
> - Coresight programmable Replicator :
> "arm,coresight-dynamic-replicator", "arm,primecell";
>
> --
> 2.24.1
>
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next prev parent reply other threads:[~2020-07-29 17:23 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-22 17:20 [RFC PATCH 00/14] coresight: Support for ETMv4.4 system instructions Suzuki K Poulose
2020-07-22 17:20 ` [RFC PATCH 01/14] coresight: etm4x: Skip save/restore before device registration Suzuki K Poulose
2020-07-29 18:01 ` Mathieu Poirier
2020-07-30 14:45 ` Suzuki K Poulose
2020-07-22 17:20 ` [RFC PATCH 02/14] coresight: Introduce device access abstraction Suzuki K Poulose
2020-07-29 19:56 ` Mathieu Poirier
2020-07-30 14:58 ` Suzuki K Poulose
2020-07-22 17:20 ` [RFC PATCH 03/14] coresight: tpiu: Use coresight " Suzuki K Poulose
2020-07-29 21:01 ` Mathieu Poirier
2020-07-31 11:36 ` Suzuki K Poulose
2020-07-22 17:20 ` [RFC PATCH 04/14] coresight: etm4x: Free up argument of etm4_init_arch_data Suzuki K Poulose
2020-07-30 17:31 ` Mathieu Poirier
2020-07-31 9:39 ` Suzuki K Poulose
2020-07-22 17:20 ` [RFC PATCH 05/14] coresight: Convert coresight_timeout to use access abstraction Suzuki K Poulose
2020-07-30 18:00 ` Mathieu Poirier
2020-07-22 17:20 ` [RFC PATCH 06/14] coresight: Convert claim and lock operations to use access wrappers Suzuki K Poulose
2020-07-30 19:54 ` Mathieu Poirier
2020-07-31 9:46 ` Suzuki K Poulose
2020-07-22 17:20 ` [RFC PATCH 07/14] coresight: etm4x: Always read the registers on the host CPU Suzuki K Poulose
2020-07-30 19:56 ` Mathieu Poirier
2020-07-22 17:20 ` [RFC PATCH 08/14] coresight: etm4x: Convert all register accesses Suzuki K Poulose
2020-07-30 20:20 ` Mathieu Poirier
2020-07-31 9:49 ` Suzuki K Poulose
2020-07-22 17:20 ` [RFC PATCH 09/14] coresight: etm4x: Add sysreg access helpers Suzuki K Poulose
2020-07-30 21:41 ` Mathieu Poirier
2020-07-31 9:51 ` Suzuki K Poulose
2020-07-22 17:20 ` [RFC PATCH 10/14] coresight: etm4x: Define DEVARCH register fields Suzuki K Poulose
2020-07-22 17:20 ` [RFC PATCH 11/14] coresight: etm4x: Detect system register access support Suzuki K Poulose
2020-07-22 17:20 ` [RFC PATCH 12/14] coresight: etm4x: Refactor probing routine Suzuki K Poulose
2020-07-22 17:20 ` [RFC PATCH 13/14] coresight: etm4x: Add support for sysreg only devices Suzuki K Poulose
2020-07-22 17:20 ` [RFC PATCH 14/14] dts: bindings: coresight: ETMv4.4 system register access only units Suzuki K Poulose
2020-07-23 17:27 ` Rob Herring
2020-07-29 17:20 ` Mathieu Poirier [this message]
2020-07-30 16:38 ` Suzuki K Poulose
2020-08-10 20:14 ` Mathieu Poirier
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