From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753053AbaJQJPp (ORCPT ); Fri, 17 Oct 2014 05:15:45 -0400 Received: from mail-bn1bon0117.outbound.protection.outlook.com ([157.56.111.117]:1484 "EHLO na01-bn1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752972AbaJQJPl (ORCPT ); Fri, 17 Oct 2014 05:15:41 -0400 X-WSS-ID: 0NDKZNW-07-HNT-02 X-M-MSG: From: Huang Rui To: Felipe Balbi , Alan Stern , "Bjorn Helgaas" , Greg Kroah-Hartman CC: Paul Zimmerman , Heikki Krogerus , Vincent Wan , Tony Li , , , , Huang Rui Subject: [PATCH v2 09/16] usb: dwc3: add P3 in U2 SS inactive quirk Date: Fri, 17 Oct 2014 16:53:34 +0800 Message-ID: <1413536021-4886-10-git-send-email-ray.huang@amd.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1413536021-4886-1-git-send-email-ray.huang@amd.com> References: <1413536021-4886-1-git-send-email-ray.huang@amd.com> MIME-Version: 1.0 Content-Type: text/plain X-EOPAttributedMessage: 0 X-Forefront-Antispam-Report: CIP:165.204.84.221;CTRY:US;IPV:NLI;EFV:NLI;SFV:NSPM;SFS:(10019020)(6009001)(428002)(189002)(199003)(68736004)(105586002)(575784001)(93916002)(229853001)(106466001)(36756003)(4396001)(77096002)(50226001)(87286001)(84676001)(89996001)(87936001)(95666004)(107046002)(102836001)(19580405001)(77156001)(92726001)(64706001)(88136002)(76482002)(2171001)(31966008)(85852003)(20776003)(47776003)(53416004)(19580395003)(104166001)(33646002)(48376002)(50466002)(46102003)(80022003)(120916001)(76176999)(50986999)(99396003)(44976005)(92566001)(62966002)(21056001)(97736003)(85306004)(86362001)(101416001);DIR:OUT;SFP:1102;SCL:1;SRVR:BN1PR02MB200;H:atltwp01.amd.com;FPR:;MLV:sfv;PTR:InfoDomainNonexistent;MX:1;A:1;LANG:en; X-Microsoft-Antispam: UriScan:; X-Microsoft-Antispam: BCL:0;PCL:0;RULEID:;SRVR:BN1PR02MB200; X-Exchange-Antispam-Report-Test: UriScan:; X-Forefront-PRVS: 0367A50BB1 Authentication-Results: spf=none (sender IP is 165.204.84.221) smtp.mailfrom=Ray.Huang@amd.com; X-OriginatorOrg: amd4.onmicrosoft.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org AMD NL needs to enable P3 OK for U2/SSInactive on USB3PIPE register. Signed-off-by: Huang Rui --- drivers/usb/dwc3/core.c | 20 ++++++++++++++++++++ drivers/usb/dwc3/core.h | 1 + drivers/usb/dwc3/dwc3-pci.c | 3 ++- drivers/usb/dwc3/platform_data.h | 1 + 4 files changed, 24 insertions(+), 1 deletion(-) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 7322d85..9d0a249 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -365,6 +365,24 @@ static void dwc3_cache_hwparams(struct dwc3 *dwc) } /** + * dwc3_phy_setup - Configure USB3 PHY Interface of DWC3 Core + * @dwc: Pointer to our controller context structure + */ +static void dwc3_phy_setup(struct dwc3 *dwc) +{ + u32 reg; + + reg = dwc3_readl(dwc->regs, DWC3_GUSB3PIPECTL(0)); + + if (dwc->quirks & DWC3_QUIRK_U2SSINP3OK) + reg |= DWC3_GUSB3PIPECTL_U2SSINP3OK; + + dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg); + + mdelay(100); +} + +/** * dwc3_core_init - Low-level initialization of DWC3 Core * @dwc: Pointer to our controller context structure * @@ -484,6 +502,8 @@ static int dwc3_core_init(struct dwc3 *dwc) dwc3_writel(dwc->regs, DWC3_GCTL, reg); + dwc3_phy_setup(dwc); + ret = dwc3_alloc_scratch_buffers(dwc); if (ret) goto err1; diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 3d27f10..71cb255 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -176,6 +176,7 @@ /* Global USB3 PIPE Control Register */ #define DWC3_GUSB3PIPECTL_PHYSOFTRST (1 << 31) +#define DWC3_GUSB3PIPECTL_U2SSINP3OK (1 << 29) #define DWC3_GUSB3PIPECTL_SUSPHY (1 << 17) /* Global TX Fifo Size Register */ diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index cdb9b04..1235eb3 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -150,7 +150,8 @@ static int dwc3_pci_probe(struct pci_dev *pci, PCI_DEVICE_ID_AMD_NL) { dwc3_pdata.has_lpm_erratum = true; dwc3_pdata.quirks |= DWC3_QUIRK_AMD_NL - | DWC3_QUIRK_U2EXIT_LFPS; + | DWC3_QUIRK_U2EXIT_LFPS + | DWC3_QUIRK_U2SSINP3OK; } ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res)); diff --git a/drivers/usb/dwc3/platform_data.h b/drivers/usb/dwc3/platform_data.h index a6463c0..ad03563 100644 --- a/drivers/usb/dwc3/platform_data.h +++ b/drivers/usb/dwc3/platform_data.h @@ -31,5 +31,6 @@ struct dwc3_platform_data { #define DWC3_QUIRK_AMD_NL (1 << 0) #define DWC3_QUIRK_DISSCRAMBLE (1 << 1) #define DWC3_QUIRK_U2EXIT_LFPS (1 << 2) +#define DWC3_QUIRK_U2SSINP3OK (1 << 3) }; -- 1.9.1