linux-kernel - Re: [PATCH v3 4/4] arm64: dts: ti: k3-am62a7-sk: Enable ipc with remote proc nodes

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Date: Mon, 10 Jun 2024 10:52:47 -0500
From: Hari Nagalla <hnagalla@...com>
To: Bryan Brattlof <bb@...com>
CC: <vigneshr@...com>, <kristo@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <nm@...com>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>
Subject: Re: [PATCH v3 4/4] arm64: dts: ti: k3-am62a7-sk: Enable ipc with
 remote proc nodes

On 6/6/24 12:16, Bryan Brattlof wrote:
>> +
>> +		c7x_0_memory_region: c7x-memory@...00000 {
>> +			compatible = "shared-dma-pool";
>> +			reg = <0x00 0x99900000 0x00 0x01efffff>;
>> +			no-map;
>> +		};
>>   	};
> This seems highly specific to the demos we're currently running for our
> reference boards. If someone wants to develop their own app say with
> Zypher they would instantly need to change this.
> 
> If these absolutely need to be in here could they go in a TI-demo overly?
> 
> ~Bryan
Hey Bryan,
You are correct, these carveouts match the TI provided firmware 
binaries. Ideally, these could go into an overlay. Just following the 
carveout model used with the rest of the TI SoCs (AM6x/J72x), to avoid 
confusion to the users.