linux-kernel - Re: [PATCH v1 0/4] Add support for TI AM6254atl SiP

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Message-ID: <20250829123541.332xfrmzgar2dn4y@bryanbrattlof.com>
Date: Fri, 29 Aug 2025 07:35:41 -0500
From: Bryan Brattlof <bb@...com>
To: Anshul Dalal <anshuld@...com>
CC: <nm@...com>, <vigneshr@...com>, <kristo@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v1 0/4] Add support for TI AM6254atl SiP

On August 14, 2025 thus sayeth Anshul Dalal:
> Hi all,
> 
> This patch series adds support for AM6254atl SiP (or AM62x SiP for short)
> to the linux device-tree.
> 
> The OPN (Orderable Part Number) 'AM6254atl' expands as follows[1]:
> 
> AM6254atl
>      ||||
>      |||+-- Feature Lookup (L indicates 512MiB of integrated LPDDR4)
>      ||+--- Device Speed Grade (T indicates 1.25GHz/1.4GHz on the A53 cores)
>      |+---- Silicon PG Revision (A indicates SR 1.0)
>      +----- Core configuration (4 indicates A53's in Quad core config)

It stinks we put the integrated DRAM density so far down in the part 
code. But I guess there isn't much we can do about it now. :/

> 
> AM62x SiP provides the existing AM62x SoC with 512MiB of DDR integrated in a
> single packages.
> 
> This patch set adds the new 'k3-am6254atl' SoC level dtsi alongside the
> 'k3-am6254atl-sk' dts for the EVM (Evaluation Module board). The newly added
> 'k3-am625-sk-common' dtsi includes the common hardware between the existing
> AM62x EVM and the new EVM for AM62x SiP.
> 
> Regards,
> Anshul
> ---
> [1]: https://www.ti.com/lit/ds/symlink/am625sip.pdf Page#21
> Product Page:
>     https://www.ti.com/product/AM625SIP/part-details/AM6254ATLHJAMKR
> ---
> Anshul Dalal (4):
>   arm64: dts: ti: k3-am62*: remove SoC dtsi from common dtsi
>   dt-bindings: arm: ti: Add binding for AM625 SiP
>   arm64: dts: ti: Introduce base support for AM6254atl SiP
>   arm64: dts: ti: Add support for AM6254atl SiP SK

Reviewed-by: Bryan Brattlof <bb@...com>

~Bryan