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Layerscape supports DMA coherent bus fabric. It needs to pass down a software-managed property to the DWC3 core. Signed-off-by: Frank Li --- .../devicetree/bindings/usb/fsl,ls-dwc3.yaml | 50 ++++++++++++++++++++++ 1 file changed, 50 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/fsl,ls-dwc3.yaml b/Documentation/devicetree/bindings/usb/fsl,ls-dwc3.yaml new file mode 100644 index 0000000000000..e79416122d12b --- /dev/null +++ b/Documentation/devicetree/bindings/usb/fsl,ls-dwc3.yaml @@ -0,0 +1,50 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/fsl,ls-dwc3.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale layerscape DWC3 USB controller + +maintainers: + - Frank Li + +properties: + compatible: + const: fsl,ls1028a-dwc3 + + ranges: true + + '#address-cells': + enum: [ 1, 2 ] + + '#size-cells': + enum: [ 1, 2 ] + +# Required child node: + +patternProperties: + "^usb@[0-9a-f]+$": + $ref: snps,dwc3.yaml# + +required: + - compatible + +additionalProperties: false + +examples: + - | + #include + usb { + compatible = "fsl,ls1028a-dwc3"; 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Wed, 10 Jul 2024 23:02:49 +0000 From: Frank Li Date: Wed, 10 Jul 2024 19:02:23 -0400 Subject: [PATCH 2/3] usb: dwc3: of-simple: Add compatible string fsl,ls1028a-dwc3 Message-Id: <20240710-ls-dwc-v1-2-62f8cbed31d7@nxp.com> References: <20240710-ls-dwc-v1-0-62f8cbed31d7@nxp.com> In-Reply-To: <20240710-ls-dwc-v1-0-62f8cbed31d7@nxp.com> To: Greg Kroah-Hartman , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Thinh Nguyen , Shawn Guo Cc: linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, imx@lists.linux.dev, Frank Li X-Mailer: b4 0.13-dev-e586c X-Developer-Signature: v=1; a=ed25519-sha256; t=1720652559; l=2030; i=Frank.Li@nxp.com; s=20240130; h=from:subject:message-id; bh=P1y28FrMwhzY+EU28qrhKcw7mczE/TQPAFCv7KbwcGE=; b=n+8X4ca1EDlIOrcGGE1ySXB4yG2sEJkjZDw+UxW9zPNh8CLqHpVwN9TwpneygMwlyWbJ9TbKR 7rjYoi7b8knDOZ+Xe2lqe5Qf4AOYccn5UZmcI1KUyGykLvWguHiF1xd X-Developer-Key: i=Frank.Li@nxp.com; a=ed25519; pk=I0L1sDUfPxpAkRvPKy7MdauTuSENRq+DnA+G4qcS94Q= X-ClientProxiedBy: BYAPR05CA0092.namprd05.prod.outlook.com (2603:10b6:a03:e0::33) To PAXPR04MB9642.eurprd04.prod.outlook.com (2603:10a6:102:240::14) Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PAXPR04MB9642:EE_|GV1PR04MB10751:EE_ X-MS-Office365-Filtering-Correlation-Id: 0f7421ec-00da-43a3-a2a2-08dca1346b7f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Signed-off-by: Frank Li --- drivers/usb/dwc3/dwc3-of-simple.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c index be7be00ecb349..0aa21ddd93cda 100644 --- a/drivers/usb/dwc3/dwc3-of-simple.c +++ b/drivers/usb/dwc3/dwc3-of-simple.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include #include @@ -52,6 +53,26 @@ static int dwc3_of_simple_probe(struct platform_device *pdev) if (of_device_is_compatible(np, "rockchip,rk3399-dwc3")) simple->need_reset = true; + if (of_device_is_compatible(np, "fsl,ls1028a-dwc3")) { + struct device_node *np = dev->of_node; + struct property_entry props[2] = {}; + int prop_idx = 0, ret = 0; + struct device_node *dwc3_np __free(device_node) + = of_get_compatible_child(np, "snps,dwc3"); + + if (!dwc3_np) + return dev_err_probe(dev, -ENODEV, "failed to find dwc3 core child\n"); + + if (of_dma_is_coherent(dwc3_np)) + props[prop_idx++] = PROPERTY_ENTRY_U16("snps,gsbuscfg0-reqinfo", 0x2222); + + if (prop_idx) + ret = device_create_managed_software_node(dev, props, NULL); + + if (ret) + return ret; + } + simple->resets = of_reset_control_array_get_optional_exclusive(np); if (IS_ERR(simple->resets)) { ret = PTR_ERR(simple->resets); @@ -174,6 +195,7 @@ static const struct of_device_id of_dwc3_simple_match[] = { { .compatible = "hisilicon,hi3670-dwc3" }, { .compatible = "hisilicon,hi3798mv200-dwc3" }, { .compatible = "intel,keembay-dwc3" }, + { .compatible = "fsl,ls1028a-dwc3" }, { /* Sentinel */ } }; MODULE_DEVICE_TABLE(of, of_dwc3_simple_match); From patchwork Wed Jul 10 23:02:24 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frank Li X-Patchwork-Id: 812295 Received: from AM0PR83CU005.outbound.protection.outlook.com (mail-westeuropeazon11010051.outbound.protection.outlook.com [52.101.69.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3A62F15699E; 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So put dwc3 usb node under glue layer node and enable dma-coherent. Signed-off-by: Frank Li --- arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 43 ++++++++++++++++---------- 1 file changed, 26 insertions(+), 17 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi index 70b8731029c4e..24b937032480f 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi @@ -615,24 +615,33 @@ gpio3: gpio@2320000 { little-endian; }; - usb0: usb@3100000 { - compatible = "fsl,ls1028a-dwc3", "snps,dwc3"; - reg = <0x0 0x3100000 0x0 0x10000>; - interrupts = ; - snps,dis_rxdet_inp3_quirk; - snps,quirk-frame-length-adjustment = <0x20>; - snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>; - status = "disabled"; - }; + usb { + compatible = "fsl,ls1028a-dwc3"; + #address-cells = <2>; + #size-cells = <2>; + ranges; + + usb0: usb@3100000 { + compatible = "snps,dwc3"; + reg = <0x0 0x3100000 0x0 0x10000>; + interrupts = ; + dma-coherent; + snps,dis_rxdet_inp3_quirk; + snps,quirk-frame-length-adjustment = <0x20>; + snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>; + status = "disabled"; + }; - usb1: usb@3110000 { - compatible = "fsl,ls1028a-dwc3", "snps,dwc3"; - reg = <0x0 0x3110000 0x0 0x10000>; - interrupts = ; - snps,dis_rxdet_inp3_quirk; - snps,quirk-frame-length-adjustment = <0x20>; - snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>; - status = "disabled"; + usb1: usb@3110000 { + compatible = "snps,dwc3"; + reg = <0x0 0x3110000 0x0 0x10000>; + interrupts = ; + dma-coherent; + snps,dis_rxdet_inp3_quirk; + snps,quirk-frame-length-adjustment = <0x20>; + snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>; + status = "disabled"; + }; }; sata: sata@3200000 {