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Tue, 30 Mar 2021 04:29:23 -0500 Received: from DLEE100.ent.ti.com (157.170.170.30) by DLEE100.ent.ti.com (157.170.170.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Tue, 30 Mar 2021 04:29:23 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DLEE100.ent.ti.com (157.170.170.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2 via Frontend Transport; Tue, 30 Mar 2021 04:29:23 -0500 Received: from [10.250.234.46] (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 12U9TH7e129563; Tue, 30 Mar 2021 04:29:18 -0500 Subject: Re: [PATCH 1/6] dt-bindings: PCI: ti,am65: Add PCIe host mode dt-bindings for TI's AM65 SoC To: Rob Herring CC: Bjorn Helgaas , Lorenzo Pieralisi , Marc Zyngier , , , , , Lokesh Vutla References: <20210325090026.8843-1-kishon@ti.com> <20210325090026.8843-2-kishon@ti.com> <20210325233812.GA1943834@robh.at.kernel.org> From: Kishon Vijay Abraham I Message-ID: <985bd950-7bdf-d9b5-0a89-c05a56739c68@ti.com> Date: Tue, 30 Mar 2021 14:59:16 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20210325233812.GA1943834@robh.at.kernel.org> Content-Language: en-US X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210330_102937_569944_00EBE0C9 X-CRM114-Status: GOOD ( 20.80 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Rob, On 26/03/21 5:08 am, Rob Herring wrote: > On Thu, Mar 25, 2021 at 02:30:21PM +0530, Kishon Vijay Abraham I wrote: >> Add PCIe host mode dt-bindings for TI's AM65 SoC. >> >> Signed-off-by: Kishon Vijay Abraham I >> --- >> .../bindings/pci/ti,am65-pci-host.yaml | 111 ++++++++++++++++++ >> 1 file changed, 111 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/pci/ti,am65-pci-host.yaml >> >> diff --git a/Documentation/devicetree/bindings/pci/ti,am65-pci-host.yaml b/Documentation/devicetree/bindings/pci/ti,am65-pci-host.yaml >> new file mode 100644 >> index 000000000000..b77e492886fa >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/pci/ti,am65-pci-host.yaml >> @@ -0,0 +1,111 @@ >> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) >> +# Copyright (C) 2021 Texas Instruments Incorporated - http://www.ti.com/ >> +%YAML 1.2 >> +--- >> +$id: "http://devicetree.org/schemas/pci/ti,am65-pci-host.yaml#" >> +$schema: "http://devicetree.org/meta-schemas/core.yaml#" >> + >> +title: TI AM65 PCI Host >> + >> +maintainers: >> + - Kishon Vijay Abraham I >> + >> +allOf: >> + - $ref: /schemas/pci/pci-bus.yaml# >> + >> +properties: >> + compatible: >> + enum: >> + - ti,am654-pcie-rc >> + >> + reg: >> + maxItems: 4 >> + >> + reg-names: >> + items: >> + - const: app >> + - const: dbics > > Please use 'dbi' like everyone else if this isn't shared with the other > TI DW PCI bindings. I'm just converting existing binding in pci-keystone.txt to yaml. Documentation/devicetree/bindings/pci/pci-keystone.txt Device tree for AM65 is also already in the upstream kernel. I can try to remove the am65 specific part from pci-keystone.txt > >> + - const: config >> + - const: atu >> + >> + power-domains: >> + maxItems: 1 >> + >> + ti,syscon-pcie-id: >> + description: Phandle to the SYSCON entry required for getting PCIe device/vendor ID >> + $ref: /schemas/types.yaml#/definitions/phandle >> + >> + ti,syscon-pcie-mode: >> + description: Phandle to the SYSCON entry required for configuring PCIe in RC or EP mode. >> + $ref: /schemas/types.yaml#/definitions/phandle >> + >> + msi-map: true >> + >> + dma-coherent: true >> + >> +patternProperties: >> + "interrupt-controller": > > Don't need quotes. sure, will fix it. > >> + type: object >> + description: interrupt controller to handle legacy interrupts. >> + >> +required: >> + - compatible >> + - reg >> + - reg-names >> + - max-link-speed >> + - num-lanes >> + - power-domains >> + - ti,syscon-pcie-id >> + - ti,syscon-pcie-mode >> + - msi-map >> + - ranges >> + - reset-gpios >> + - phys >> + - phy-names >> + - dma-coherent > > 'interrupt-controller' node is optional? yeah, upstream DT doesn't have interrupt-controller. It's added as part of this series. Thanks Kishon > >> + >> +unevaluatedProperties: false >> + >> +examples: >> + - | >> + #include >> + #include >> + >> + bus { >> + #address-cells = <2>; >> + #size-cells = <2>; >> + >> + pcie0_rc: pcie@5500000 { >> + compatible = "ti,am654-pcie-rc"; >> + reg = <0x0 0x5500000 0x0 0x1000>, >> + <0x0 0x5501000 0x0 0x1000>, >> + <0x0 0x10000000 0x0 0x2000>, >> + <0x0 0x5506000 0x0 0x1000>; >> + reg-names = "app", "dbics", "config", "atu"; >> + power-domains = <&k3_pds 120 TI_SCI_PD_EXCLUSIVE>; >> + #address-cells = <3>; >> + #size-cells = <2>; >> + ranges = <0x81000000 0 0 0x0 0x10020000 0 0x00010000>, >> + <0x82000000 0 0x10030000 0x0 0x10030000 0 0x07FD0000>; >> + ti,syscon-pcie-id = <&pcie_devid>; >> + ti,syscon-pcie-mode = <&pcie0_mode>; >> + bus-range = <0x0 0xff>; >> + num-viewport = <16>; >> + max-link-speed = <2>; >> + dma-coherent; >> + interrupts = ; >> + msi-map = <0x0 &gic_its 0x0 0x10000>; >> + #interrupt-cells = <1>; >> + interrupt-map-mask = <0 0 0 7>; >> + interrupt-map = <0 0 0 1 &pcie0_intc 0>, /* INT A */ >> + <0 0 0 2 &pcie0_intc 0>, /* INT B */ >> + <0 0 0 3 &pcie0_intc 0>, /* INT C */ >> + <0 0 0 4 &pcie0_intc 0>; /* INT D */ >> + >> + pcie0_intc: interrupt-controller { >> + interrupt-controller; >> + #interrupt-cells = <1>; >> + interrupt-parent = <&gic500>; >> + interrupts = ; >> + }; >> + }; >> -- >> 2.17.1 >> _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel