linux-kernel - Re: [PATCH v3 31/33] arm64: dts: ti: k3-am62a-ti-ipc-firmware: Refactor IPC cfg into new dtsi

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Message-ID: <20250908094604.rsfilglo35likfzj@lcpd911>
Date: Mon, 8 Sep 2025 15:16:04 +0530
From: Dhruva Gole <d-gole@...com>
To: Beleswar Padhi <b-padhi@...com>
CC: <nm@...com>, <vigneshr@...com>, <kristo@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>, <afd@...com>,
        <u-kumar1@...com>, <hnagalla@...com>, <jm@...com>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v3 31/33] arm64: dts: ti: k3-am62a-ti-ipc-firmware:
 Refactor IPC cfg into new dtsi

On Sep 05, 2025 at 10:48:44 +0530, Beleswar Padhi wrote:
> The TI K3 AM62A SoCs have multiple programmable remote processors like
> R5F, C7x etc. The TI SDKs for AM62A SoCs offer sample firmwares which
> could be run on these cores to demonstrate an "echo" IPC test. Those
> firmware require certain memory carveouts to be reserved from system
> memory, timers to be reserved, and certain mailbox configurations for
> interrupt based messaging. These configurations could be different for a
> different firmware.
> 
> While DT is not meant for system configurations, at least refactor these
> configurations from board level DTS into a dtsi for now. This dtsi for
> TI IPC firmware is board-independent and can be applied to all boards
> from the same SoC Family. This gets rid of code duplication and allows
> more freedom for users developing custom firmware (or no firmware) to
> utilize system resources better; easily by swapping out this dtsi. To
> maintain backward compatibility, the dtsi is included in all boards.
> 
> Signed-off-by: Beleswar Padhi <b-padhi@...com>
> Tested-by: Judith Mendez <jm@...com>
> ---

Reviewed-by: Dhruva Gole <d-gole@...com>

-- 
Best regards,
Dhruva Gole
Texas Instruments Incorporated