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[24.155.109.49]) by smtp.gmail.com with ESMTPSA id n7sm668778otk.48.2021.02.09.11.24.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Feb 2021 11:24:44 -0800 (PST) Received: (nullmailer pid 3216 invoked by uid 1000); Tue, 09 Feb 2021 19:24:43 -0000 Date: Tue, 9 Feb 2021 13:24:43 -0600 From: Rob Herring To: Suman Anna Cc: Jassi Brar , devicetree@vger.kernel.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/2] dt-bindings: mailbox: omap: Update binding for AM64x SoCs Message-ID: <20210209192443.GA4192418@robh.at.kernel.org> References: <20210127195600.23501-1-s-anna@ti.com> <20210127195600.23501-2-s-anna@ti.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210127195600.23501-2-s-anna@ti.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 27, 2021 at 01:55:59PM -0600, Suman Anna wrote: > Update the existing OMAP Mailbox binding to include the info for > AM64x SoCs. There are some minor IP integration differences between > the AM64x SoCs and the previous AM65x and J721E SoC families. > > Signed-off-by: Suman Anna > --- > .../bindings/mailbox/omap-mailbox.txt | 22 +++++++++++++++++++ > 1 file changed, 22 insertions(+) > > diff --git a/Documentation/devicetree/bindings/mailbox/omap-mailbox.txt b/Documentation/devicetree/bindings/mailbox/omap-mailbox.txt > index 5fe80c1c19fc..c993d1a5c14a 100644 > --- a/Documentation/devicetree/bindings/mailbox/omap-mailbox.txt > +++ b/Documentation/devicetree/bindings/mailbox/omap-mailbox.txt > @@ -28,6 +28,9 @@ SoCs has each of these instances form a cluster and combine multiple clusters > into a single IP block present within the Main NavSS. The interrupt lines from > all these clusters are multiplexed and routed to different processor subsystems > over a limited number of common interrupt output lines of an Interrupt Router. > +The AM64x SoCS also uses a single IP block comprising of multiple clusters, > +but the number of clusters are smaller, and the interrupt output lines are > +connected directly to various processors. > > Mailbox Device Node: > ==================== > @@ -42,6 +45,7 @@ Required properties: > "ti,omap4-mailbox" for OMAP44xx, OMAP54xx, AM33xx, > AM43xx and DRA7xx SoCs > "ti,am654-mailbox" for K3 AM65x and J721E SoCs > + "ti,am64-mailbox" for K3 AM64x SoCs > - reg: Contains the mailbox register address range (base > address and length) > - interrupts: Contains the interrupt information for the mailbox > @@ -178,3 +182,21 @@ mailbox: mailbox@480c8000 { > }; > }; > }; > + > +4. /* AM64x */ > +&cbass_main { Please don't add examples for just a new compatible. > + mailbox0_cluster2: mailbox@29020000 { > + compatible = "ti,am64-mailbox"; > + reg = <0x00 0x29020000 0x00 0x200>; > + interrupts = , > + ; > + #mbox-cells = <1>; > + ti,mbox-num-users = <4>; > + ti,mbox-num-fifos = <16>; > + > + mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 { > + ti,mbox-rx = <0 0 2>; > + ti,mbox-tx = <1 0 2>; > + }; > + }; > +}; > -- > 2.29.2 >