From patchwork Wed May 13 07:15:39 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frank Wang X-Patchwork-Id: 11545257 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 DA81E1668 for ; Wed, 13 May 2020 07:16:09 +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 B85FC206D6 for ; Wed, 13 May 2020 07:16:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="YDsSwz/L" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B85FC206D6 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=rock-chips.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-rockchip-bounces+patchwork-linux-rockchip=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:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: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=WFZm5P9X9WYdXOlJm1qyK8/j1jmzNyExGClKOM3QV+8=; b=YDsSwz/Lh4IQYvkZCPjmmmkxMH TCa6RrRaPvh3C0YWtQQ3eYTtCt7JyRFbOlwuLHWOMKgXfgDi3Aip4CI17GQrb3FM0rrAdTeuerWpu ojaCEkKJr8VQh8zZtPm6w9ReK44EOJn1au72zvVvB6EKP1J3Lznt/Bg+3yJ30upnpG0YDKBndfXnn q2b/pCbN5VH+FhffQnA/yWMLHD3lJOzUk2op+Z3SHqw/pBYW4VxTBnV+M77wp4AFjk/WX1MEg5ckQ VR/3MGba+WN5ToFaMoBs25cDG+hkqxZX7xAM8110VkiOgxQFQw31o8IR4BHm/nVOaAaWHS2Tps4DC pVylxUHw==; 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 1jYlcc-0008MU-8C; Wed, 13 May 2020 07:16:06 +0000 Received: from lucky1.263xmail.com ([211.157.147.135]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jYlcY-0008E6-V3 for linux-rockchip@lists.infradead.org; Wed, 13 May 2020 07:16:04 +0000 Received: from localhost (unknown [192.168.167.16]) by lucky1.263xmail.com (Postfix) with ESMTP id 6FFD982AC8; Wed, 13 May 2020 15:15:54 +0800 (CST) X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-ADDR-CHECKED4: 1 X-ANTISPAM-LEVEL: 2 X-ABS-CHECKED: 0 Received: from localhost.localdomain (unknown [58.22.7.114]) by smtp.263.net (postfix) whith ESMTP id P15407T140446440306432S1589354149129638_; Wed, 13 May 2020 15:15:55 +0800 (CST) X-IP-DOMAINF: 1 X-UNIQUE-TAG: <3ddc54ec96f37bbc93d37ee0e17b2699> X-RL-SENDER: frank.wang@rock-chips.com X-SENDER: wmc@rock-chips.com X-LOGIN-NAME: frank.wang@rock-chips.com X-FST-TO: heiko@sntech.de X-SENDER-IP: 58.22.7.114 X-ATTACHMENT-NUM: 0 X-DNS-TYPE: 0 X-System-Flag: 0 From: Frank Wang To: heiko@sntech.de, marex@denx.de, bmeng.cn@gmail.com, philipp.tomsich@theobroma-systems.com, klaus.goger@theobroma-systems.com, jagan@amarulasolutions.com, sjg@chromium.org, kever.yang@rock-chips.com Subject: [PATCH v5 09/16] usb: dwc3: Add disable u2mac linestate check quirk Date: Wed, 13 May 2020 15:15:39 +0800 Message-Id: <20200513071546.5560-5-frank.wang@rock-chips.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200513071546.5560-1-frank.wang@rock-chips.com> References: <20200513071344.5430-1-frank.wang@rock-chips.com> <20200513071546.5560-1-frank.wang@rock-chips.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200513_001603_425458_95C6BCB9 X-CRM114-Status: GOOD ( 13.73 ) X-Spam-Score: 1.5 (+) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (1.5 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [211.157.147.135 listed in list.dnswl.org] 1.5 RCVD_IN_SORBS_WEB RBL: SORBS: sender is an abusable web server [58.22.7.114 listed in dnsbl.sorbs.net] 0.0 T_SPF_PERMERROR SPF: test of record failed (permerror) 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 RCVD_IN_MSPIKE_H2 RBL: Average reputation (+2) [211.157.147.135 listed in wl.mailspike.net] X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jianing.ren@rock-chips.com, marek.belisko@gmail.com, wmc@rock-chips.com, u-boot@lists.denx.de, william.wu@rock-chips.com, linux-rockchip@lists.infradead.org, linux-amarula@amarulasolutions.com, chenjh@rock-chips.com MIME-Version: 1.0 Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org From: Jagan Teki This patch adds a quirk to disable USB 2.0 MAC linestate check during HS transmit. Refer the dwc3 databook, we can use it for some special platforms if the linestate not reflect the expected line state(J) during transmission. When use this quirk, the controller implements a fixed 40-bit TxEndDelay after the packet is given on UTMI and ignores the linestate during the transmit of a token (during token-to-token and token-to-data IPGAP). On some rockchip platforms (e.g. rk3399), it requires to disable the u2mac linestate check to decrease the SSPLIT token to SETUP token inter-packet delay from 566ns to 466ns, and fix the issue that FS/LS devices not recognized if inserted through USB 3.0 HUB. Reference from below Linux commit, commit <65db7a0c9816> ("usb: dwc3: add disable u2mac linestate check quirk") Cc: Marek Vasut Signed-off-by: Jagan Teki Reviewed-by: Kever Yang --- drivers/usb/dwc3/core.c | 20 ++++++++++++++++++++ drivers/usb/dwc3/core.h | 7 +++++++ include/dwc3-uboot.h | 1 + 3 files changed, 28 insertions(+) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 3cb66515a2..dc92f471c1 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -725,6 +725,7 @@ int dwc3_uboot_init(struct dwc3_device *dwc3_dev) dwc->dis_u3_susphy_quirk = dwc3_dev->dis_u3_susphy_quirk; dwc->dis_u2_susphy_quirk = dwc3_dev->dis_u2_susphy_quirk; dwc->dis_del_phy_power_chg_quirk = dwc3_dev->dis_del_phy_power_chg_quirk; + dwc->dis_tx_ipgap_linecheck_quirk = dwc3_dev->dis_tx_ipgap_linecheck_quirk; dwc->dis_enblslpm_quirk = dwc3_dev->dis_enblslpm_quirk; dwc->dis_u2_freeclk_exists_quirk = dwc3_dev->dis_u2_freeclk_exists_quirk; @@ -934,6 +935,8 @@ void dwc3_of_parse(struct dwc3 *dwc) "snps,dis_u2_susphy_quirk"); dwc->dis_del_phy_power_chg_quirk = dev_read_bool(dev, "snps,dis-del-phy-power-chg-quirk"); + dwc->dis_tx_ipgap_linecheck_quirk = dev_read_bool(dev, + "snps,dis-tx-ipgap-linecheck-quirk"); dwc->dis_enblslpm_quirk = dev_read_bool(dev, "snps,dis_enblslpm_quirk"); dwc->dis_u2_freeclk_exists_quirk = dev_read_bool(dev, @@ -954,6 +957,7 @@ void dwc3_of_parse(struct dwc3 *dwc) int dwc3_init(struct dwc3 *dwc) { int ret; + u32 reg; dwc3_cache_hwparams(dwc); @@ -975,6 +979,22 @@ int dwc3_init(struct dwc3 *dwc) goto event_fail; } + if (dwc->revision >= DWC3_REVISION_250A) { + reg = dwc3_readl(dwc->regs, DWC3_GUCTL1); + + /* + * Enable hardware control of sending remote wakeup + * in HS when the device is in the L1 state. + */ + if (dwc->revision >= DWC3_REVISION_290A) + reg |= DWC3_GUCTL1_DEV_L1_EXIT_BY_HW; + + if (dwc->dis_tx_ipgap_linecheck_quirk) + reg |= DWC3_GUCTL1_TX_IPGAP_LINECHECK_DIS; + + dwc3_writel(dwc->regs, DWC3_GUCTL1, reg); + } + ret = dwc3_core_init_mode(dwc); if (ret) goto mode_fail; diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index c5e656885a..b510d8a983 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -73,6 +73,7 @@ #define DWC3_GCTL 0xc110 #define DWC3_GEVTEN 0xc114 #define DWC3_GSTS 0xc118 +#define DWC3_GUCTL1 0xc11c #define DWC3_GSNPSID 0xc120 #define DWC3_GGPIO 0xc124 #define DWC3_GUID 0xc128 @@ -159,6 +160,10 @@ #define DWC3_GCTL_GBLHIBERNATIONEN (1 << 1) #define DWC3_GCTL_DSBLCLKGTNG (1 << 0) +/* Global User Control 1 Register */ +#define DWC3_GUCTL1_TX_IPGAP_LINECHECK_DIS BIT(28) +#define DWC3_GUCTL1_DEV_L1_EXIT_BY_HW BIT(24) + /* Global USB2 PHY Configuration Register */ #define DWC3_GUSB2PHYCFG_PHYSOFTRST (1 << 31) #define DWC3_GUSB2PHYCFG_U2_FREECLK_EXISTS (1 << 30) @@ -771,6 +776,7 @@ struct dwc3 { #define DWC3_REVISION_260A 0x5533260a #define DWC3_REVISION_270A 0x5533270a #define DWC3_REVISION_280A 0x5533280a +#define DWC3_REVISION_290A 0x5533290a enum dwc3_ep0_next ep0_next_event; enum dwc3_ep0_state ep0state; @@ -824,6 +830,7 @@ struct dwc3 { unsigned dis_u3_susphy_quirk:1; unsigned dis_u2_susphy_quirk:1; unsigned dis_del_phy_power_chg_quirk:1; + unsigned dis_tx_ipgap_linecheck_quirk:1; unsigned dis_enblslpm_quirk:1; unsigned dis_u2_freeclk_exists_quirk:1; diff --git a/include/dwc3-uboot.h b/include/dwc3-uboot.h index 193d225d31..e08530ec4e 100644 --- a/include/dwc3-uboot.h +++ b/include/dwc3-uboot.h @@ -34,6 +34,7 @@ struct dwc3_device { unsigned dis_u3_susphy_quirk; unsigned dis_u2_susphy_quirk; unsigned dis_del_phy_power_chg_quirk; + unsigned dis_tx_ipgap_linecheck_quirk; unsigned dis_enblslpm_quirk; unsigned dis_u2_freeclk_exists_quirk; unsigned tx_de_emphasis_quirk;