[PATCH 1/1] arm64: dts: imx8mq: Add coresight trace components

[Shawn Guo]

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 at 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