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(unknown [172.16.64.208]) by smtprelay.cixcomputing.com (Postfix) with ESMTPSA id C4BB041604FA; Mon, 30 Jun 2025 12:16:06 +0800 (CST) From: hans.zhang@cixtech.com To: bhelgaas@google.com, lpieralisi@kernel.org, kw@linux.com, mani@kernel.org, robh@kernel.org, kwilczynski@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org Cc: mpillai@cadence.com, fugang.duan@cixtech.com, guoyin.chen@cixtech.com, peter.chen@cixtech.com, cix-kernel-upstream@cixtech.com, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Hans Zhang Subject: [PATCH v5 10/14] dt-bindings: PCI: Add CIX Sky1 PCIe Root Complex bindings Date: Mon, 30 Jun 2025 12:15:57 +0800 Message-ID: <20250630041601.399921-11-hans.zhang@cixtech.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250630041601.399921-1-hans.zhang@cixtech.com> References: <20250630041601.399921-1-hans.zhang@cixtech.com> 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 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: TY2PEPF0000AB88:EE_|SI2PR06MB5138:EE_ X-MS-Office365-Filtering-Correlation-Id: 59c1b0e2-f303-44bd-8402-08ddb78cd86d X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|7416014|82310400026|36860700013|7053199007; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?e7rvxOH/vWNE6CCt4pHqPMH1iZR8GvftfG96qGuVixMj+KzWNzuZ8p8eNOV0?= =?us-ascii?Q?5WTkFSpBFujCTmmcwALM4C7HF8D87FCRA5mNbvCoTVkrfYAMbgFhhFlsadiX?= =?us-ascii?Q?WaG+hsStFQcQzN2nNXi0K5ca4iWuxR0v2nEOFAZ85e0qrcbnZ5UMxSiSGl/Z?= =?us-ascii?Q?nnyfy4HwqDLg+3F/vRP4DdIZJZmigeDbesEnAdWH46o3JQMAJhbbHQBn2ovB?= =?us-ascii?Q?ie73/+QEmjDX4bifUNeX04tE7leOw+p1Xd4kOS/zVsY/bBbSbRW5jvT6LPq4?= =?us-ascii?Q?QsJlQxA7V/DjRIr76hwteMC1JMJMMUpGFPkVFifhw9k/4PI+w4ptd9iAbUJ8?= =?us-ascii?Q?wSGCRpUIlsFqXBzRrQrGfSWs8mHXJgUnBajVI2cnNW9h4ukfPKBobU6zZlIm?= =?us-ascii?Q?tOw1l10nZNx7owqdN1byvEN2PKDFnfoIsDayitwZjCzanLcSAuf9j0mlE8IX?= =?us-ascii?Q?JYUAm5OuEgpkH930+GwD3aiDWQALurPRkspTNi8mhqMZBVyiK2qvld5npKZ9?= =?us-ascii?Q?ap18hSAB0UyxunzBNEsN8SHJ6mschX63RYDv6HumoAML/jSjfnNOYr2PsVVE?= =?us-ascii?Q?LZstKxHtH3uFa6OZQH9plQHiJDJrPJ5cBdev+0edYn0qImolcJUVTuHsyn6o?= =?us-ascii?Q?4kULIAQHUxFh/RsT+LXHljMzQfscfMyIJrJCnyDxEGm5zAfr2RVvc8DooJ53?= =?us-ascii?Q?eIRmMHM9hipNgWu0uK3zoKnKoaE7AhZJmg2zo/ezkW1VBXzDBhTHCawOG/Zw?= =?us-ascii?Q?gVLFLGKL2p7/SKFQDgqDUh3QoaOdFEpEzzd7m8A9fTQR8XTR/5ubNneR48ch?= =?us-ascii?Q?E+UAH2vudN6LiSWBuy8e3ZBzpQsUuzYkPq4bwmYERDVpSA7ctyRyYmvitY1E?= =?us-ascii?Q?cqSJ17w0Q0wwYIU6XpTb66pTKcPnhKxgcB3wZTTxJ3j/KJCQWMoMh31l50Z5?= =?us-ascii?Q?ILGIFJUiTh09dJSxvsuhqdTodbtAQQlklcWSNsBlk+RIrbHRhnOEpF/pT/pu?= =?us-ascii?Q?8KZRXmsJVs7Rz/6zFbGEbfYMzR6Mtajh6STtNwsTkxA9E6FWEP5tJosy1AvY?= =?us-ascii?Q?B+Z+XarkzTi2T9iT3Hb+RLzA3XGJzr59NIh+PRRLjAZ6Dul2sIczSwNRUXNC?= =?us-ascii?Q?OOAGMXJBsMSuhak/lTcQMSmGw1ONJA0aGdtUrfPMMmdzbK5FYwQ5wuDPe5mc?= =?us-ascii?Q?W1cXbZJmW5NRsvfCn/+Cl2CGIJjbMRJsXd7XiEItEVjoOxZg3uyvcjngO9pe?= =?us-ascii?Q?3NlotEOBQubtxAdJwZS5KTYfyR5XLG2rSKNV2rva9Yy2M/9gePQ1MxvCu4Mo?= =?us-ascii?Q?NQJOmrMMv6XkuvENwPuP9u64NDUZm83BOAd4kon1sd7X3qtRC6zbCa4FTlXp?= =?us-ascii?Q?iX79XMgXT5jvq6kd/E+5aEmSG9Ov1ezikzNMP1l3nWIxxjiXvndxiZwNuFll?= =?us-ascii?Q?PNCIGltLFUUe2Ka3mNztk6RyLO81zX78eHChUtJXOUn06uzGZpVyEg=3D=3D?= X-Forefront-Antispam-Report: CIP:222.71.101.198;CTRY:CN;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:smtprelay.cixcomputing.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(1800799024)(376014)(7416014)(82310400026)(36860700013)(7053199007);DIR:OUT;SFP:1102; X-OriginatorOrg: cixtech.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Jun 2025 04:16:10.8727 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 59c1b0e2-f303-44bd-8402-08ddb78cd86d X-MS-Exchange-CrossTenant-Id: 0409f77a-e53d-4d23-943e-ccade7cb4811 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=0409f77a-e53d-4d23-943e-ccade7cb4811;Ip=[222.71.101.198];Helo=[smtprelay.cixcomputing.com] X-MS-Exchange-CrossTenant-AuthSource: TY2PEPF0000AB88.apcprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SI2PR06MB5138 Content-Type: text/plain; charset="utf-8" From: Hans Zhang Document the bindings for CIX Sky1 PCIe Controller configured in root complex mode with five root port. Supports 4 INTx, MSI and MSI-x interrupts from the ARM GICv3 controller. Signed-off-by: Hans Zhang Reviewed-by: Peter Chen Reviewed-by: Manikandan K Pillai --- .../bindings/pci/cix,sky1-pcie-host.yaml | 133 ++++++++++++++++++ 1 file changed, 133 insertions(+) create mode 100644 Documentation/devicetree/bindings/pci/cix,sky1-pcie-hos= t.yaml diff --git a/Documentation/devicetree/bindings/pci/cix,sky1-pcie-host.yaml = b/Documentation/devicetree/bindings/pci/cix,sky1-pcie-host.yaml new file mode 100644 index 000000000000..b4395bc06f2f --- /dev/null +++ b/Documentation/devicetree/bindings/pci/cix,sky1-pcie-host.yaml @@ -0,0 +1,133 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pci/cix,sky1-pcie-host.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: CIX Sky1 PCIe Root Complex + +maintainers: + - Hans Zhang + +description: + PCIe root complex controller based on the Cadence PCIe core. + +allOf: + - $ref: /schemas/pci/pci-host-bridge.yaml# + - $ref: /schemas/pci/cdns-pcie.yaml# + +properties: + compatible: + oneOf: + - const: cix,sky1-pcie-host + + reg: + items: + - description: PCIe controller registers. + - description: Remote CIX System Unit registers. + - description: ECAM registers. + - description: Region for sending messages registers. + + reg-names: + items: + - const: reg + - const: rcsu + - const: cfg + - const: msg + + "#interrupt-cells": + const: 1 + + interrupt-map-mask: + items: + - const: 0 + - const: 0 + - const: 0 + - const: 7 + + interrupt-map: + maxItems: 4 + + max-link-speed: + maximum: 4 + + num-lanes: + maximum: 8 + + ranges: + maxItems: 3 + + msi-map: + maxItems: 1 + + vendor-id: + const: 0x1f6c + + device-id: + enum: + - 0x0001 + + cdns,no-inbound-bar: + description: | + Indicates the PCIe controller does not require an inbound BAR region. + type: boolean + + sky1,pcie-ctrl-id: + description: | + Specifies the PCIe controller instance identifier (0-4). + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 4 + +required: + - compatible + - reg + - reg-names + - "#interrupt-cells" + - interrupt-map-mask + - interrupt-map + - max-link-speed + - num-lanes + - bus-range + - device_type + - ranges + - msi-map + - vendor-id + - device-id + - cdns,no-inbound-bar + - sky1,pcie-ctrl-id + +unevaluatedProperties: false + +examples: + - | + #include + + pcie_x8_rc: pcie@a010000 { + compatible =3D "cix,sky1-pcie-host"; + reg =3D <0x00 0x0a010000 0x00 0x10000>, + <0x00 0x0a000000 0x00 0x10000>, + <0x00 0x2c000000 0x00 0x4000000>, + <0x00 0x60000000 0x00 0x00100000>; + reg-names =3D "reg", "rcsu", "cfg", "msg"; + #interrupt-cells =3D <1>; + interrupt-map-mask =3D <0 0 0 0x7>; + interrupt-map =3D <0 0 0 1 &gic 0 0 GIC_SPI 407 IRQ_TYPE_LEVEL_HIG= H 0>, + <0 0 0 2 &gic 0 0 GIC_SPI 408 IRQ_TYPE_LEVEL_HIGH = 0>, + <0 0 0 3 &gic 0 0 GIC_SPI 409 IRQ_TYPE_LEVEL_HIGH = 0>, + <0 0 0 4 &gic 0 0 GIC_SPI 410 IRQ_TYPE_LEVEL_HIGH = 0>; + max-link-speed =3D <4>; + num-lanes =3D <8>; + #address-cells =3D <3>; + #size-cells =3D <2>; + bus-range =3D <0xc0 0xff>; + device_type =3D "pci"; + ranges =3D <0x01000000 0x00 0x60100000 0x00 0x60100000 0x00 0x0010= 0000>, + <0x02000000 0x00 0x60200000 0x00 0x60200000 0x00 0x1fe000= 00>, + <0x43000000 0x18 0x00000000 0x18 0x00000000 0x04 0x000000= 00>; + msi-map =3D <0xc000 &gic_its 0xc000 0x4000>; + vendor-id =3D <0x1f6c>; + device-id =3D <0x0001>; + sky1,pcie-ctrl-id =3D <0x0>; + cdns,no-inbound-bar; + }; --=20 2.49.0