From: Shawn Guo <shawnguo@kernel.org>
To: Alexander Stein <alexander.stein@ew.tq-group.com>
Cc: Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Conor Dooley <conor+dt@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
NXP Linux Team <linux-imx@nxp.com>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
Frank Li <Frank.Li@nxp.com>
Subject: Re: [PATCH 1/1] arm64: dts: imx8mq: Add coresight trace components
Date: Tue, 18 Jul 2023 09:46:49 +0800 [thread overview]
Message-ID: <20230718014649.GT9559@dragon> (raw)
In-Reply-To: <20230616075914.2315189-1-alexander.stein@ew.tq-group.com>
On Fri, Jun 16, 2023 at 09:59:14AM +0200, Alexander Stein wrote:
> Add coresight trace components (ETM, ETF, ETB and Funnel).
>
> ┌───────┐ ┌───────┐ ┌───────┐
> │ CPU0 ├─►│ ETM0 ├─►│ │
> └───────┘ └───────┘ │ │
> │ │
> ┌───────┐ ┌───────┐ │ ATP │
> │ CPU1 ├─►│ ETM1 ├─►│ │
> └───────┘ └───────┘ │ │
> │ FUNNEL│
> ┌───────┐ ┌───────┐ │ │
> │ CPU2 ├─►│ ETM2 ├─►│ │
> └───────┘ └───────┘ │ │ ┌─────┐
> │ │ │ │
> ┌───────┐ ┌───────┐ │ │ │ M4 │
> │ CPU3 ├─►│ ETM3 ├─►│ │ │ │
> └───────┘ └───────┘ └───┬───┘ └──┬──┘ AXI
> │ │ ▲
> ▼ ▼ │
> ┌───────────────────────────┐ ┌─────┐ ┌─┴──┐
> │ ATP FUNNEL ├──►│ ETF ├─► │ETR │
> └───────────────────────────┘ └─────┘ └────┘
>
> Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
> ---
> This is a 1:1 copy from commit 71c2ac9a2a3da ("arm64: dts: imx8mp: Add
> coresight trace components") with the following changes:
> * Adjust clock names
> * Replace (Cortex-)M7 with M4 in comment
> * Remove Audio DSP funnel port
>
> This is untested, but the base addresses for the components are
> identical in the reference manuals.
I prefer to have it tested in some way before we apply it.
Shawn
prev parent reply other threads:[~2023-07-18 1:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-16 7:59 [PATCH 1/1] arm64: dts: imx8mq: Add coresight trace components Alexander Stein
2023-07-18 1:46 ` Shawn Guo [this message]
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