From nobody Mon Feb 9 15:47:36 2026 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 0CAA1239570; Mon, 3 Mar 2025 17:00:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741021223; cv=none; b=IJEivTlKj2GOpBN7r6dsG5Q4aJX2t1tgCP7s4D2FDv0iBG4X3JaR+67BKB16NdMTi2y76RQvePZuZ0iSMcvHj8T+s73cfftya8FXoikCx0mc0xPLSN1+YlPB4uiC+1M+PkQUs1eoaAPaTw//sODRdLSGyB4QrWab7K+5tWPkaTk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741021223; c=relaxed/simple; bh=fGmoaUhJ6s4D50XCy7yH/YCCOfr0FJRHN2mzmglh2cc=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=rCvfOx7nX7d2/Mg9HEhAJf15yFHihaDeY82CnG7E7pbf4LGHDSXht6dx/vvv+g+MiDMyzSX9ZuHS01kZCGCHJavBAT1WJ5xx+v4HucMmV+YZXyo8kf8c9sQfW6H/TpxtZ91qxd/DNUDEYVT19Tpe3sEj5fgvqN1BzRV82mePo54= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 5DA57106F; Mon, 3 Mar 2025 09:00:35 -0800 (PST) Received: from e129527.arm.com (unknown [10.57.67.1]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 344C03F673; Mon, 3 Mar 2025 09:00:19 -0800 (PST) From: Hugues KAMBA MPIANA To: sudeep.holla@arm.com Cc: conor+dt@kernel.org, devicetree@vger.kernel.org, hugues.kambampiana@arm.com, krzk+dt@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, liviu.dudau@arm.com, lpieralisi@kernel.org, robh@kernel.org Subject: [PATCH v2] arm64: dts: corstone1000: Add definitions for secondary CPU cores Date: Mon, 3 Mar 2025 17:00:12 +0000 Message-Id: <20250303170012.469576-1-hugues.kambampiana@arm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add `cpu1`, `cpu2` and `cpu3` nodes to the Corstone1000 device tree to enable support for secondary CPU cores. This update facilitates symmetric multiprocessing (SMP) support on the Corstone1000 Fixed Virtual Platform (FVP), allowing the secondary cores to be properly initialised and utilised. Only FVP platform will have SMP support and hence the secondary cpu definit= ions are not added to corstone1000.dtsi. Signed-off-by: Hugues KAMBA MPIANA --- arch/arm64/boot/dts/arm/corstone1000-fvp.dts | 24 ++++++++++++++++++++ arch/arm64/boot/dts/arm/corstone1000.dtsi | 2 +- 2 files changed, 25 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/arm/corstone1000-fvp.dts b/arch/arm64/boot= /dts/arm/corstone1000-fvp.dts index abd013562995..df9700302b8d 100644 --- a/arch/arm64/boot/dts/arm/corstone1000-fvp.dts +++ b/arch/arm64/boot/dts/arm/corstone1000-fvp.dts @@ -49,3 +49,27 @@ sdmmc1: mmc@50000000 { clock-names =3D "smclk", "apb_pclk"; }; }; + +&cpus { + cpu1: cpu@1 { + device_type =3D "cpu"; + compatible =3D "arm,cortex-a35"; + reg =3D <0x1>; + enable-method =3D "psci"; + next-level-cache =3D <&L2_0>; + }; + cpu2: cpu@2 { + device_type =3D "cpu"; + compatible =3D "arm,cortex-a35"; + reg =3D <0x2>; + enable-method =3D "psci"; + next-level-cache =3D <&L2_0>; + }; + cpu3: cpu@3 { + device_type =3D "cpu"; + compatible =3D "arm,cortex-a35"; + reg =3D <0x3>; + enable-method =3D "psci"; + next-level-cache =3D <&L2_0>; + }; +}; diff --git a/arch/arm64/boot/dts/arm/corstone1000.dtsi b/arch/arm64/boot/dt= s/arm/corstone1000.dtsi index bb9b96fb5314..b4364c61901c 100644 --- a/arch/arm64/boot/dts/arm/corstone1000.dtsi +++ b/arch/arm64/boot/dts/arm/corstone1000.dtsi @@ -21,7 +21,7 @@ chosen { stdout-path =3D "serial0:115200n8"; }; =20 - cpus { + cpus: cpus { #address-cells =3D <1>; #size-cells =3D <0>;