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smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=dolcini.it; spf=pass smtp.mailfrom=dolcini.it; dkim=pass (2048-bit key) header.d=dolcini.it header.i=@dolcini.it header.b=zONGa+v4; arc=none smtp.client-ip=217.194.8.81 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=dolcini.it Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=dolcini.it Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=dolcini.it header.i=@dolcini.it header.b="zONGa+v4" Received: from francesco-nb (93-49-2-63.ip317.fastwebnet.it [93.49.2.63]) by mail11.truemail.it (Postfix) with ESMTPA id CA76C1F928; Thu, 21 Aug 2025 08:03:27 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dolcini.it; s=default; t=1755756208; bh=FrScFWxwUweYwsRmH5bskazblTnrXR09gx4xHuFB8Kg=; h=From:To:Subject; b=zONGa+v4bwGNv4NkMlLXJBcl+T66Aubn6+uZeZqZRxlK6EgqdY9fErRukWmC0wcPt pn+NE89+6dK+apL5q0hIvkumyummyYKvGo+21g+mKTaGmaVZcabaqZCg43Q/6fnbcd QW/kncFmMvnikr+nvoWPZYcleJNZ36/AhUhEcGq8/2p+Y7wtNc9ujO35A0Uy3ZaTcm pE3kSJCiUk+54u+aHTd813thKqqoG3Mud2to++HEWJM4axNNQkqSejgqDNRlXa3fY7 KR7xNojpleTwPv/DH5HtYZ8BIuAl1PSQ3o4AKlzatsaRjzSLfzyqjmmrwUPADRDzp6 xFoJWqyMOhsMw== Date: Thu, 21 Aug 2025 08:03:24 +0200 From: Francesco Dolcini To: Beleswar Padhi Cc: nm@ti.com, vigneshr@ti.com, kristo@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, afd@ti.com, u-kumar1@ti.com, hnagalla@ti.com, jm@ti.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH 20/33] arm64: dts: ti: k3-am62: Enable Mailbox nodes at the board level Message-ID: <20250821060324.GA7503@francesco-nb> References: <20250814223839.3256046-1-b-padhi@ti.com> <20250814223839.3256046-21-b-padhi@ti.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250814223839.3256046-21-b-padhi@ti.com> On Fri, Aug 15, 2025 at 04:08:26AM +0530, Beleswar Padhi wrote: > Mailbox nodes defined in the top-level AM62x SoC dtsi files are > incomplete and may not be functional unless they are extended with a > chosen interrupt and connection to a remote processor. > > As the remote processors depend on memory nodes which are only known at > the board integration level, these nodes should only be enabled when > provided with the above information. > > Disable the Mailbox nodes in the dtsi files and only enable the ones > that are actually used on a given board. > > Signed-off-by: Beleswar Padhi > --- > arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 1 + > arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts | 1 + > arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi | 1 + > 3 files changed, 3 insertions(+) > > diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi > index 029380dc1a35..40fb3c9e674c 100644 > --- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi > +++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi > @@ -808,6 +808,7 @@ mailbox0_cluster0: mailbox@29000000 { > #mbox-cells = <1>; > ti,mbox-num-users = <4>; > ti,mbox-num-fifos = <16>; > + status = "disabled"; > }; > > ecap0: pwm@23100000 { > diff --git a/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts b/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts > index df2e1b0e74a1..2140e0cdec85 100644 > --- a/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts > +++ b/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts > @@ -299,6 +299,7 @@ &epwm2 { > }; > > &mailbox0_cluster0 { > + status = "okay"; add new line > mbox_m4_0: mbox-m4-0 { > ti,mbox-rx = <0 0 0>; > ti,mbox-tx = <1 0 0>; > diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi > index fba6f5c8d099..1c44d17281dd 100644 > --- a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi > +++ b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi > @@ -1335,6 +1335,7 @@ &main_i2c3 { > }; > > &mailbox0_cluster0 { > + status = "okay"; add new line > mbox_m4_0: mbox-m4-0 { > ti,mbox-rx = <0 0 0>; > ti,mbox-tx = <1 0 0>; > -- > 2.34.1 >