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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"; + ranges; + #address-cells = <1>; + #size-cells = <1>; + + usb@31000000 { + compatible = "snps,dwc3"; + reg = <0x31000000 0x10000>; + interrupts = ; + dr_mode = "peripheral"; + }; + }; From patchwork Wed Jul 10 23:02:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frank Li X-Patchwork-Id: 13729830 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BF672C3DA41 for ; Wed, 10 Jul 2024 23:04:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:MIME-Version:Cc:To: In-Reply-To:References:Message-Id:Content-Transfer-Encoding:Content-Type: Subject:Date:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; 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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: 13729831 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E7685C3DA42 for ; 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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 {