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Wed, 15 Jul 2020 08:33:17 -0700 From: Ben Levinsky To: ohad@wizery.com, bjorn.andersson@linaro.org, michals@xilinx.com, JOLLYS@xilinx.com, RAJANV@xilinx.com, robh+dt@kernel.org, mark.rutland@arm.com Cc: linux-remoteproc@vger.kernel.org, linux-arm-kernell@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, jliang@xilinx.com, stefanos@xilinx.com, Jason Wu , Michal Simek Subject: [PATCH v6 4/5] dt-bindings: remoteproc: Add documentation for ZynqMP R5 rproc bindings Date: Wed, 15 Jul 2020 08:33:16 -0700 Message-Id: <20200715153317.25643-5-ben.levinsky@xilinx.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200715153317.25643-1-ben.levinsky@xilinx.com> References: <20200715153317.25643-1-ben.levinsky@xilinx.com> X-TM-AS-Product-Ver: IMSS-7.1.0.1224-8.2.0.1013-23620.005 X-TM-AS-User-Approved-Sender: Yes;Yes X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:149.199.60.83;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:xsj-pvapsmtpgw01;PTR:unknown-60-83.xilinx.com;CAT:NONE;SFTY:;SFS:(136003)(39860400002)(346002)(396003)(376002)(46966005)(186003)(336012)(26005)(8936002)(8676002)(47076004)(82740400003)(7696005)(44832011)(2616005)(1076003)(36756003)(5660300002)(426003)(81166007)(82310400002)(2906002)(316002)(83380400001)(9786002)(478600001)(4326008)(70206006)(70586007)(356005)(54906003)(107886003);DIR:OUT;SFP:1101; X-MS-PublicTrafficType: Email MIME-Version: 1.0 Content-Type: text/plain X-MS-Office365-Filtering-Correlation-Id: 4a7b1384-cbb5-48f2-7703-08d828d46731 X-MS-TrafficTypeDiagnostic: DM6PR02MB6969: X-Microsoft-Antispam-PRVS: X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply X-MS-Oob-TLC-OOBClassifiers: OLM:9508; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: AUZyu/Nkf0PVV39UD0gD/4MCCTUFiQWU7lCmAQGKEQaja6H2kGcqz1NMxKkjieoU8nDvSpUXnsOS2ywOvma6yFiXHnBVLV/JEfTSzJtN0B8RODsuySboqwlBlY8SHVwr99vDUn92TO20mEjXbm2uoL6C0slYGo+Uqs/CZsGf3hSMeIqBYhShai4Xy0x3ivJSVniNHMPPVR3iPMBetiSHJj2kZauGEqrFcYn0qRYDhHutaRz2qsA1TwNtHXXDe4WjiKATEFCzPOLtxyAsSy4kLVi34Y1SACSbOlmD3hCgq1Q6PW9IZb76UXMOACjHgl/icGwWAkpOgHeNM6N/p6/ZMEXQA0hrrCXoSOKFXSaGnykfg+DgSdh95VgormIVNp2Tvd8Xyhozxt8++yVT2ug9BuFRXpTQI3xgSk3cYknaqxxGFKJwd417k8BMtFueN1GNzivgGMrmUJHyDIKxSwlcWzLLkZxgxph0DMgXbqD8cKc= X-OriginatorOrg: xilinx.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Jul 2020 15:33:20.2268 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 4a7b1384-cbb5-48f2-7703-08d828d46731 X-MS-Exchange-CrossTenant-Id: 657af505-d5df-48d0-8300-c31994686c5c X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=657af505-d5df-48d0-8300-c31994686c5c;Ip=[149.199.60.83];Helo=[xsj-pvapsmtpgw01] X-MS-Exchange-CrossTenant-AuthSource: BL2NAM02FT003.eop-nam02.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR02MB6969 Sender: linux-remoteproc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-remoteproc@vger.kernel.org Add binding for ZynqMP R5 OpenAMP. Represent the RPU domain resources in one device node. Each RPU processor is a subnode of the top RPU domain node. Signed-off-by: Ben Levinsky Signed-off-by: Jason Wu Signed-off-by: Wendy Liang Signed-off-by: Michal Simek --- v3: - update zynqmp_r5 yaml parsing to not raise warnings for extra information in children of R5 node. The warning "node has a unit name, but no reg or ranges property" will still be raised though as this particular node is needed to describe the '#address-cells' and '#size-cells' information. v4:: - remove warning '/example-0/rpu@ff9a0000/r5@0: node has a unit name, but no reg or ranges property' by adding reg to r5 node. v5: - update device tree sample and yaml parsing to not raise any warnings - description for memory-region in yaml parsing - compatible string in yaml parsing for TCM v6: - remove coupling TCM nodes with remoteproc - remove mailbox as it is optional not needed --- .../xilinx,zynqmp-r5-remoteproc.yaml | 73 +++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 Documentation/devicetree/bindings/remoteproc/xilinx,zynqmp-r5-remoteproc.yaml diff --git a/Documentation/devicetree/bindings/remoteproc/xilinx,zynqmp-r5-remoteproc.yaml b/Documentation/devicetree/bindings/remoteproc/xilinx,zynqmp-r5-remoteproc.yaml new file mode 100644 index 000000000000..54f916d9b037 --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/xilinx,zynqmp-r5-remoteproc.yaml @@ -0,0 +1,73 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/remoteproc/xilinx,zynqmp-r5-remoteproc.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: Xilinx R5 remote processor controller bindings + +description: + This document defines the binding for the remoteproc component that loads and + boots firmwares on the Xilinx Zynqmp and Versal family chipset. + + Note that the Linux has global addressing view of the R5-related memory (TCM) + so the absolute address ranges are provided in TCM reg's. +maintainers: + - Ed Mooring + - Ben Levinsky + +properties: + compatible: + const: "xlnx,zynqmp-r5-remoteproc-1.0" + + lockstep-mode: + description: + R5 core configuration (split is 0 or lock-step and 1) + maxItems: 1 + + interrupts: + description: + Interrupt mapping for remoteproc IPI. It is required if the + user uses the remoteproc driver with the RPMsg kernel driver. + maxItems: 6 + + memory-region: + description: + collection of memory carveouts used for elf-loading and inter-processor + communication. + maxItems: 4 + minItems: 4 + pnode-id: + maxItems: 1 + mboxes: + maxItems: 2 + mbox-names: + maxItems: 2 + +examples: + - | + reserved-memory { + #address-cells = <1>; + #size-cells = <1>; + ranges; + elf_load: rproc@3ed000000 { + no-map; + reg = <0x3ed00000 0x40000>; + }; + }; + rpu { + compatible = "xlnx,zynqmp-r5-remoteproc-1.0"; + #address-cells = <1>; + #size-cells = <1>; + ranges; + lockstep-mode = <0>; + r5_0 { + ranges; + #address-cells = <1>; + #size-cells = <1>; + memory-region = <&elf_load>; + pnode-id = <0x7>; + }; + }; + +... -- 2.17.1