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[90.63.244.31]) by smtp.gmail.com with ESMTPSA id t83sm42708624wmt.18.2019.10.14.07.17.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Oct 2019 07:17:20 -0700 (PDT) From: Neil Armstrong To: balbi@kernel.org, khilman@baylibre.com, devicetree@vger.kernel.org Subject: [PATCH 1/3] doc: dt: bindings: usb: dwc3: Update entries for disabling SS instances in park mode Date: Mon, 14 Oct 2019 16:17:16 +0200 Message-Id: <20191014141718.22603-2-narmstrong@baylibre.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20191014141718.22603-1-narmstrong@baylibre.com> References: <20191014141718.22603-1-narmstrong@baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191014_071723_834098_9179B4A5 X-CRM114-Status: UNSURE ( 9.55 ) X-CRM114-Notice: Please train this message. X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:443 listed in] [list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jianxin Pan , Neil Armstrong , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Tim , Dongjin Kim , linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org This patch updates the documentation with the information related to the quirks that needs to be added for disabling all SuperSpeed XHCi instances in park mode. CC: Dongjin Kim Cc: Jianxin Pan Reported-by: Tim Signed-off-by: Neil Armstrong Acked-by: Rob Herring --- Documentation/devicetree/bindings/usb/dwc3.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt index 66780a47ad85..c977a3ba2f35 100644 --- a/Documentation/devicetree/bindings/usb/dwc3.txt +++ b/Documentation/devicetree/bindings/usb/dwc3.txt @@ -75,6 +75,8 @@ Optional properties: from P0 to P1/P2/P3 without delay. - snps,dis-tx-ipgap-linecheck-quirk: when set, disable u2mac linestate check during HS transmit. + - snps,parkmode-disable-ss-quirk: when set, all SuperSpeed bus instances in + park mode are disabled. - snps,dis_metastability_quirk: when set, disable metastability workaround. CAUTION: use only if you are absolutely sure of it. - snps,is-utmi-l1-suspend: true when DWC3 asserts output signal From patchwork Mon Oct 14 14:17:17 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Neil Armstrong X-Patchwork-Id: 11188851 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 23CCB1390 for ; Mon, 14 Oct 2019 14:17:58 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id F1D112067B for ; Mon, 14 Oct 2019 14:17:57 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="I49+dl6R"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=baylibre-com.20150623.gappssmtp.com header.i=@baylibre-com.20150623.gappssmtp.com header.b="bn3ZspUJ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F1D112067B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=5P1jJqdP3HfQ7ClHvy3nASypPWnAs26BQOUtKsJ/qOU=; b=I49+dl6RGFBxQV mQxLULXbGUrJKRmZG+vDM4Cgr4S+t7POD3aYFKuBxGJJRfPucjHfwe+cCG7aIzSmpXehg8e92hPxg 1jVdcU4uef1toRJ+zepQUyWAFwpUzGefIoTLbZyWzqWtljq1CaAWmYMYos9VffU49uAqIdjNKqCCG gUGXtNBukpbL3dRVRnWvzBpVSkBTteFxDz5YkUlCznx3/BvuW13qa1PMXxWM8s1kbY3SynTqa5ZWX rEw/MgEAAN0YKM0yE3KT1RZ8OpSpQV39/2/Cp5ALV84vH2GYEv9AN1mYADrj6ZR2A0ZLqs1LpQjFF 81CNKF2JLB6QX6tycc9Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iK1AV-00034N-W4; Mon, 14 Oct 2019 14:17:51 +0000 Received: from mail-wm1-x341.google.com ([2a00:1450:4864:20::341]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iK1A5-0002bl-PJ for linux-arm-kernel@lists.infradead.org; Mon, 14 Oct 2019 14:17:27 +0000 Received: by mail-wm1-x341.google.com with SMTP id b24so16935535wmj.5 for ; Mon, 14 Oct 2019 07:17:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=6RXqG5Af/3T765Lcjtvbk/UObYQwmVYQ6qNsUxXclLs=; b=bn3ZspUJJ5UmMi0EdqwKTRnQu9xyBbhCz62kjUH/dRTv/U+R0Vv2f7jH6o/xm9oWt7 GrZzedImYwuSI/KfxNoprRt4yCQuF3UKoP8Qyte/eFQvbYUERKNpyuIDyDSrn4Nf5c/J sPDIrLKFSBrSPjHmjXTpBgDfnouc4tTux3Zdn1x4CX9W/+rgvyuEJu/eJ/H8FcsJE/Yx DZiuFmFpzQnvr5rzX4WRfc1Aaj4zKxFSkitfhirUs0RH6UJc2rGjH0aPkUGhozrJyn5K ce0OpYUP7iW9vepZyOLcc6bmxKYLOud9NWkFOtWHK6f378JF9mEZyWwI1oBz2h/KvqR1 6HaA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=6RXqG5Af/3T765Lcjtvbk/UObYQwmVYQ6qNsUxXclLs=; b=kIb2LowUveSFia+Fe3ykCGc66TCOe5AlYBrGf2uppra/vJvf68unlkVs98a8pbcX5I ivBdY4MPXfaJgba6s9XMm0Dm42q6daKVEurSjRPZxQp+R2YqvWE5QESAKzcUuAzrI10H /CJ5bGDjW0HieP0TD/slSonQMludiYHnIYdRLOnO+eHxb4pvDLY2w2L3QvjWQtKcd9jJ vejnDxr9y/7CI7T/LYeLdxVxyDm2ozNvAVB8H1+1uaKaV1jM+t/3ijLBVBXYw8Ay4mw8 Jlzm72SoKaBcewndXLrWKgs1Vrdy/zqmYI1tjTDrmTcjupU6XrWFvL84UpqZsGxhs6lv sZfQ== X-Gm-Message-State: APjAAAXpCs2hK4CJjrSC+H7aPCqwftbaqqQqPG++9aINHN8a3SJach4/ R4QD6Tdila5MOzZt9m5D2peh6w== X-Google-Smtp-Source: APXvYqw4IO9MRxbqhVYZiKfAMyWhC/RNKtuMVM/wLlGtJnmTIO2XZbkFlL27avwMAb+BYU5bynNS9Q== X-Received: by 2002:a7b:c947:: with SMTP id i7mr15599951wml.53.1571062642161; Mon, 14 Oct 2019 07:17:22 -0700 (PDT) Received: from bender.baylibre.local (lmontsouris-657-1-212-31.w90-63.abo.wanadoo.fr. [90.63.244.31]) by smtp.gmail.com with ESMTPSA id t83sm42708624wmt.18.2019.10.14.07.17.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Oct 2019 07:17:21 -0700 (PDT) From: Neil Armstrong To: balbi@kernel.org, khilman@baylibre.com Subject: [PATCH 2/3] usb: dwc3: gadget: Add support for disabling SS instances in park mode Date: Mon, 14 Oct 2019 16:17:17 +0200 Message-Id: <20191014141718.22603-3-narmstrong@baylibre.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20191014141718.22603-1-narmstrong@baylibre.com> References: <20191014141718.22603-1-narmstrong@baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191014_071725_855737_A762CA02 X-CRM114-Status: GOOD ( 11.90 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:341 listed in] [list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jianxin Pan , Neil Armstrong , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Tim , Dongjin Kim , linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org In certain circumstances, the XHCI SuperSpeed instance in park mode can fail to recover, thus on Amlogic G12A/G12B/SM1 SoCs when there is high load on the single XHCI SuperSpeed instance, the controller can crash like: xhci-hcd xhci-hcd.0.auto: xHCI host not responding to stop endpoint command. xhci-hcd xhci-hcd.0.auto: Host halt failed, -110 xhci-hcd xhci-hcd.0.auto: xHCI host controller not responding, assume dead xhci-hcd xhci-hcd.0.auto: xHCI host not responding to stop endpoint command. hub 2-1.1:1.0: hub_ext_port_status failed (err = -22) xhci-hcd xhci-hcd.0.auto: HC died; cleaning up usb 2-1.1-port1: cannot reset (err = -22) Setting the PARKMODE_DISABLE_SS bit in the DWC3_USB3_GUCTL1 mitigates the issue. The bit is described as : "When this bit is set to '1' all SS bus instances in park mode are disabled" CC: Dongjin Kim Cc: Jianxin Pan Reported-by: Tim Signed-off-by: Neil Armstrong --- drivers/usb/dwc3/core.c | 5 +++++ drivers/usb/dwc3/core.h | 4 ++++ 2 files changed, 9 insertions(+) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 999ce5e84d3c..a36cf33330fb 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -993,6 +993,9 @@ static int dwc3_core_init(struct dwc3 *dwc) if (dwc->dis_tx_ipgap_linecheck_quirk) reg |= DWC3_GUCTL1_TX_IPGAP_LINECHECK_DIS; + if (dwc->parkmode_disable_ss_quirk) + reg |= DWC3_GUCTL1_PARKMODE_DISABLE_SS; + dwc3_writel(dwc->regs, DWC3_GUCTL1, reg); } @@ -1303,6 +1306,8 @@ static void dwc3_get_properties(struct dwc3 *dwc) "snps,dis-del-phy-power-chg-quirk"); dwc->dis_tx_ipgap_linecheck_quirk = device_property_read_bool(dev, "snps,dis-tx-ipgap-linecheck-quirk"); + dwc->parkmode_disable_ss_quirk = device_property_read_bool(dev, + "snps,parkmode-disable-ss-quirk"); dwc->tx_de_emphasis_quirk = device_property_read_bool(dev, "snps,tx_de_emphasis_quirk"); diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 1c8b349379af..5fb557f24d38 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -249,6 +249,7 @@ #define DWC3_GUCTL_HSTINAUTORETRY BIT(14) /* Global User Control 1 Register */ +#define DWC3_GUCTL1_PARKMODE_DISABLE_SS BIT(17) #define DWC3_GUCTL1_TX_IPGAP_LINECHECK_DIS BIT(28) #define DWC3_GUCTL1_DEV_L1_EXIT_BY_HW BIT(24) @@ -1022,6 +1023,8 @@ struct dwc3_scratchpad_array { * change quirk. * @dis_tx_ipgap_linecheck_quirk: set if we disable u2mac linestate * check during HS transmit. + * @parkmode_disable_ss_quirk: set if we need to disable all SuperSpeed + * instances in park mode. * @tx_de_emphasis_quirk: set if we enable Tx de-emphasis quirk * @tx_de_emphasis: Tx de-emphasis value * 0 - -6dB de-emphasis @@ -1213,6 +1216,7 @@ struct dwc3 { unsigned dis_u2_freeclk_exists_quirk:1; unsigned dis_del_phy_power_chg_quirk:1; unsigned dis_tx_ipgap_linecheck_quirk:1; + unsigned parkmode_disable_ss_quirk:1; unsigned tx_de_emphasis_quirk:1; unsigned tx_de_emphasis:2; From patchwork Mon Oct 14 14:17:18 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Neil Armstrong X-Patchwork-Id: 11188853 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A48181575 for ; Mon, 14 Oct 2019 14:18:07 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 68B7A2067B for ; Mon, 14 Oct 2019 14:18:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="XPKCANFe"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=baylibre-com.20150623.gappssmtp.com header.i=@baylibre-com.20150623.gappssmtp.com header.b="qw+2kp/+" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 68B7A2067B Authentication-Results: mail.kernel.org; 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[90.63.244.31]) by smtp.gmail.com with ESMTPSA id t83sm42708624wmt.18.2019.10.14.07.17.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Oct 2019 07:17:22 -0700 (PDT) From: Neil Armstrong To: balbi@kernel.org, khilman@baylibre.com Subject: [PATCH 3/3] arm64: dts: g12-common: add parkmode_disable_ss_quirk on DWC3 controller Date: Mon, 14 Oct 2019 16:17:18 +0200 Message-Id: <20191014141718.22603-4-narmstrong@baylibre.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20191014141718.22603-1-narmstrong@baylibre.com> References: <20191014141718.22603-1-narmstrong@baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191014_071726_635670_3DB97C1F X-CRM114-Status: GOOD ( 10.49 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:344 listed in] [list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jianxin Pan , Neil Armstrong , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Tim , Dongjin Kim , linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org When high load on the DWC3 SuperSpee port, the controller crashed as: [ 221.141621] xhci-hcd xhci-hcd.0.auto: xHCI host not responding to stop endpoint command. [ 221.157631] xhci-hcd xhci-hcd.0.auto: Host halt failed, -110 [ 221.157635] xhci-hcd xhci-hcd.0.auto: xHCI host controller not responding, assume dead [ 221.159901] xhci-hcd xhci-hcd.0.auto: xHCI host not responding to stop endpoint command. [ 221.159961] hub 2-1.1:1.0: hub_ext_port_status failed (err = -22) [ 221.160076] xhci-hcd xhci-hcd.0.auto: HC died; cleaning up [ 221.165946] usb 2-1.1-port1: cannot reset (err = -22) Setting the parkmode_disable_ss_quirk quirk fixes the issue. CC: Dongjin Kim Cc: Jianxin Pan Reported-by: Tim Signed-off-by: Neil Armstrong --- arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi index 3f39e020f74e..4b002e799e5c 100644 --- a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi @@ -2381,6 +2381,7 @@ dr_mode = "host"; snps,dis_u2_susphy_quirk; snps,quirk-frame-length-adjustment; + snps,parkmode-disable-ss-quirk; }; };