linux-kernel - Re: [PATCH v1 1/2] dt-bindings: arm: nuvoton: add Facebook Yosemite 4 board

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Message-ID: <ZaFydbPxbeczo97t@heinlein.vulture-banana.ts.net>
Date: Fri, 12 Jan 2024 11:10:13 -0600
From: Patrick Williams <patrick@...cx.xyz>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: Delphine CC Chiu <Delphine_CC_Chiu@...ynn.com>,
	Avi Fishman <avifishman70@...il.com>,
	Tomer Maimon <tmaimon77@...il.com>,
	Tali Perry <tali.perry1@...il.com>,
	Patrick Venture <venture@...gle.com>, Nancy Yuen <yuenn@...gle.com>,
	Benjamin Fair <benjaminfair@...gle.com>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Jonathan Neuschäfer <j.neuschaefer@....net>,
	openbmc@...ts.ozlabs.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 1/2] dt-bindings: arm: nuvoton: add Facebook Yosemite
 4 board

On Fri, Jan 12, 2024 at 08:10:25AM +0100, Krzysztof Kozlowski wrote:
> On 12/01/2024 02:36, Delphine CC Chiu wrote:
> > Document the new compatibles used on Facebook Yosemite 4.
> 
> There is Yosemite4 board already supported. What is this for?
> https://lore.kernel.org/all/20240109072053.3980855-5-Delphine_CC_Chiu@wiwynn.com/

Yosemite4 is a server chassis which is managed by a BMC.  The BMC is on
a pluggable module card.  Typically we've used Aspeed chips for this,
but we are building an alternative BMC module using Nuvoton BMC chips.

We will end up with two different BMC chips / images that could be
managing the same server hardware.  Since the Aspeed and Nuvoton chips
are different there are unfortunately 2 device trees (one for each chip).

Please let us know if there is a better way to document this.

-- 
Patrick Williams

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