From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1970AFF886F for ; Wed, 29 Apr 2026 03:08:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=sxhZv9V/MciaMkimByIs7OD1ODZL9ik64h/A4H5G/Zw=; b=PFtFwCdIqUujtzzM002iKe9SiQ GhTSGBfV+c1Q6QW4oqZ6peeluahHqMRbtGF10StSJyno7zyGHVHOu5hoDBhQJZ3jeHcZ6St1CXpeM ajBp8SeVy9l8Ih9qt2mExJrzBN4S2zTuTlqEl6PtOd8LAR1uBFj2XEXjRHAroCunqUgW/TmKav6a2 OWwqCwsRXJV6ZFyau4lGxtPAb497VP1DgJ0Y0NjZV3MWXvF5prjzklUtShLDz5a3xfCHlGBsDWtqb /aAKJBZymnx82vMrhVbfXt+OfMEaPodicXA4YjomvgVHSDGTegonuJgBtvEUsDCNspvg1J4ZYLXLz l2qsEWaA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1wHvHh-00000002pWk-3xyi; Wed, 29 Apr 2026 03:08:21 +0000 Received: from inva021.nxp.com ([92.121.34.21]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1wHvHd-00000002pVC-2Fdi for linux-arm-kernel@lists.infradead.org; Wed, 29 Apr 2026 03:08:18 +0000 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 1D14A2044AE; Wed, 29 Apr 2026 05:08:16 +0200 (CEST) Received: from aprdc01srsp001v.ap-rdc01.nxp.com (aprdc01srsp001v.ap-rdc01.nxp.com [165.114.16.16]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id D83AF2044B9; Wed, 29 Apr 2026 05:08:15 +0200 (CEST) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id 9AD571800083; Wed, 29 Apr 2026 11:08:13 +0800 (+08) From: Jiafei Pan To: andersson@kernel.org, mathieu.poirier@linaro.org, peng.fan@nxp.com, Frank.Li@nxp.com, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Zhiqiang.Hou@nxp.com, mingkai.hu@nxp.com, linux-remoteproc@vger.kernel.org, devicetree@vger.kernel.org, Jiafei Pan Subject: [PATCH v2 1/5] dt-bindings: remoteproc: add imx-rproc-psci binding Date: Wed, 29 Apr 2026 11:10:43 +0800 Message-Id: <20260429031047.30893-2-Jiafei.Pan@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20260429031047.30893-1-Jiafei.Pan@nxp.com> References: <20260429031047.30893-1-Jiafei.Pan@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260428_200817_707149_7B58CF5D X-CRM114-Status: GOOD ( 13.16 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add compatible string "fsl,imx-rproc-psci" for i.MX Cortex-A Core's remoteproc support. Signed-off-by: Jiafei Pan --- .../remoteproc/fsl,imx-rproc-psci.yaml | 64 +++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc-psci.yaml diff --git a/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc-psci.yaml b/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc-psci.yaml new file mode 100644 index 000000000000..cdab9566e588 --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc-psci.yaml @@ -0,0 +1,64 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/remoteproc/fsl,imx-rproc-psci.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NXP i.MX Cortex-A Core Remote Processor via PSCI + +maintainers: + - Jiafei Pan + +description: + This binding provides support for managing Cortex-A cores as remote + processors on i.MX platforms using the PSCI (Power State Coordination + Interface) for CPU power management operations. This allows single + Cortex-A core or multiple Cortex-A cores to be controlled by Linux as + a remote processor, enabling them to run RTOS or bare-metal applications. + +properties: + compatible: + const: fsl,imx-rproc-psci + + fsl,cpus-bits: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Bitmask indicating which CPU cores are assigned to this remote + processor instance. Each bit represents a CPU core, where bit N + corresponds to CPU N. For example, 0x2 (0b10) assigns CPU core 1, + while 0x6 (0b110) assigns CPU cores 1 and 2. + + memory-region: + maxItems: 1 + description: + Phandle to a reserved memory region to be used for the remote + processor's code and data. + +required: + - compatible + - fsl,cpus-bits + - memory-region + +additionalProperties: false + +examples: + - | + / { + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + rtos_ca55_reserved: rtos-ca55@d0000000 { + reg = <0 0xd0000000 0 0x10000000>; + no-map; + }; + }; + + remoteproc-ca55-1 { + compatible = "fsl,imx-rproc-psci"; + /* bitmask: 0b10, assign A55 Core 1 */ + fsl,cpus-bits = <0x2>; + memory-region = <&rtos_ca55_reserved>; + }; + }; -- 2.43.0