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Wed, 16 Sep 2020 19:45:20 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.3.0-324-g0f99587-fm-20200916.004-g0f995879 Mime-Version: 1.0 Message-Id: <644a9acb-e1a6-4077-ac15-15dad58144dc@www.fastmail.com> In-Reply-To: <20200916084703.778386-2-joel@jms.id.au> References: <20200916084703.778386-1-joel@jms.id.au> <20200916084703.778386-2-joel@jms.id.au> Date: Thu, 17 Sep 2020 09:15:00 +0930 From: "Andrew Jeffery" To: "Joel Stanley" , "Rob Herring" Subject: Re: [PATCH 1/3] dt-bindings: aspeed: Add silicon id node to SCU X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200916_194525_864840_272D94DA X-CRM114-Status: GOOD ( 14.00 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-aspeed@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, 16 Sep 2020, at 18:17, Joel Stanley wrote: > Different Aspeed families have various unique hardware silicon > identifiers within the SoC. > > Signed-off-by: Joel Stanley > --- > .../devicetree/bindings/mfd/aspeed-scu.txt | 23 +++++++++++++++++++ > 1 file changed, 23 insertions(+) > > diff --git a/Documentation/devicetree/bindings/mfd/aspeed-scu.txt > b/Documentation/devicetree/bindings/mfd/aspeed-scu.txt > index 4d92c0bb6687..fff3151f06ee 100644 > --- a/Documentation/devicetree/bindings/mfd/aspeed-scu.txt > +++ b/Documentation/devicetree/bindings/mfd/aspeed-scu.txt > @@ -20,3 +20,26 @@ syscon: syscon@1e6e2000 { > #clock-cells = <1>; > #reset-cells = <1>; > }; > + > +Silicon ID > +----------------- > + > +Families have unique hardware silicon identifiers within the SoC. > + > +Required properties: > + > + - compatible: "aspeed,silicon-id" or: > + "aspeed,ast2400-silicon-id" or > + "aspeed,ast2501-silicon-id" or aspeed,ast2510-silicon-id > + "aspeed,ast2600-silicon-id" > + > + - reg: offset and length of the silicon id information > + optionally, a second offset and length describes the unique chip id What about chips with multiple silicon ID regs? I guess we just pick a sensible one, though given recent events maybe we should make an explicit note for the 2600? Andrew _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel