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Mon, 14 Nov 2022 07:53:47 -0800 From: Jon Hunter To: Rob Herring , Krzysztof Kozlowski , Thierry Reding CC: , , , , , Jon Hunter Subject: [PATCH V3 1/2] dt-bindings: PCI: tegra234: Add ECAM support Date: Mon, 14 Nov 2022 15:53:32 +0000 Message-ID: <20221114155333.234496-2-jonathanh@nvidia.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221114155333.234496-1-jonathanh@nvidia.com> References: <20221114155333.234496-1-jonathanh@nvidia.com> MIME-Version: 1.0 X-NVConfidentiality: public Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6NAM11FT099:EE_|DS7PR12MB6358:EE_ X-MS-Office365-Filtering-Correlation-Id: 373f5910-6889-4fdf-195c-08dac658733a X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230022)(4636009)(346002)(39860400002)(136003)(376002)(396003)(451199015)(46966006)(40470700004)(36840700001)(107886003)(6666004)(82740400003)(356005)(7636003)(7696005)(41300700001)(47076005)(8936002)(426003)(83380400001)(5660300002)(478600001)(110136005)(54906003)(336012)(26005)(82310400005)(36860700001)(40460700003)(86362001)(316002)(2616005)(40480700001)(36756003)(70586007)(186003)(8676002)(4326008)(2906002)(1076003)(70206006);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Nov 2022 15:54:01.7549 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 373f5910-6889-4fdf-195c-08dac658733a X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT099.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS7PR12MB6358 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Vidya Sagar Add support for ECAM aperture that is only supported for Tegra234 devices. Signed-off-by: Vidya Sagar Co-developed-by: Jon Hunter Signed-off-by: Jon Hunter --- Changes since V2: - Avoid duplication of reg items and reg-names Changes since V1: - Restricted the ECAM aperture to only Tegra234 devices that support it. .../bindings/pci/nvidia,tegra194-pcie.yaml | 34 +++++++++++++++++-- .../devicetree/bindings/pci/snps,dw-pcie.yaml | 2 +- 2 files changed, 33 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.yaml b/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.yaml index 75da3e8eecb9..fe81d52c7277 100644 --- a/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.yaml +++ b/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.yaml @@ -27,6 +27,7 @@ properties: - nvidia,tegra234-pcie reg: + minItems: 4 items: - description: controller's application logic registers - description: configuration registers @@ -35,13 +36,16 @@ properties: available for software access. - description: aperture where the Root Port's own configuration registers are available. + - description: aperture to access the configuration space through ECAM. reg-names: + minItems: 4 items: - const: appl - const: config - const: atu_dma - const: dbi + - const: ecam interrupts: items: @@ -202,6 +206,31 @@ properties: allOf: - $ref: /schemas/pci/snps,dw-pcie.yaml# + - if: + properties: + compatible: + contains: + enum: + - nvidia,tegra194-pcie + then: + properties: + reg: + maxItems: 4 + reg-names: + maxItems: 4 + + - if: + properties: + compatible: + contains: + enum: + - nvidia,tegra234-pcie + then: + properties: + reg: + minItems: 5 + reg-names: + minItems: 5 unevaluatedProperties: false @@ -305,8 +334,9 @@ examples: reg = <0x00 0x14160000 0x0 0x00020000>, /* appl registers (128K) */ <0x00 0x36000000 0x0 0x00040000>, /* configuration space (256K) */ <0x00 0x36040000 0x0 0x00040000>, /* iATU_DMA reg space (256K) */ - <0x00 0x36080000 0x0 0x00040000>; /* DBI reg space (256K) */ - reg-names = "appl", "config", "atu_dma", "dbi"; + <0x00 0x36080000 0x0 0x00040000>, /* DBI reg space (256K) */ + <0x24 0x30000000 0x0 0x10000000>; /* ECAM (256MB) */ + reg-names = "appl", "config", "atu_dma", "dbi", "ecam"; #address-cells = <3>; #size-cells = <2>; diff --git a/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml b/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml index 7287d395e1b6..7e0b015f1414 100644 --- a/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml +++ b/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml @@ -35,7 +35,7 @@ properties: maxItems: 5 items: enum: [ dbi, dbi2, config, atu, atu_dma, app, appl, elbi, mgmt, ctrl, - parf, cfg, link, ulreg, smu, mpu, apb, phy ] + parf, cfg, link, ulreg, smu, mpu, apb, phy, ecam ] num-lanes: description: | -- 2.25.1