From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-bn1bbn0105.outbound.protection.outlook.com ([157.56.111.105]:32800 "EHLO na01-bn1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752031AbaJQJOZ (ORCPT ); Fri, 17 Oct 2014 05:14:25 -0400 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 06/16] usb: dwc3: add disscramble quirk Date: Fri, 17 Oct 2014 16:53:31 +0800 Message-ID: <1413536021-4886-7-git-send-email-ray.huang@amd.com> 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 Sender: linux-pci-owner@vger.kernel.org List-ID: AMD NL fpga needs to enable disscramble quirk. And this quirk doesn't need on the true soc. Signed-off-by: Huang Rui --- drivers/usb/dwc3/core.c | 8 +++++++- drivers/usb/dwc3/dwc3-pci.c | 5 +++++ drivers/usb/dwc3/platform_data.h | 4 ++++ 3 files changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 50c0eae..819e501 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -422,7 +422,6 @@ static int dwc3_core_init(struct dwc3 *dwc) reg = dwc3_readl(dwc->regs, DWC3_GCTL); reg &= ~DWC3_GCTL_SCALEDOWN_MASK; - reg &= ~DWC3_GCTL_DISSCRAMBLE; switch (DWC3_GHWPARAMS1_EN_PWROPT(dwc->hwparams.hwparams1)) { case DWC3_GHWPARAMS1_EN_PWROPT_CLK: @@ -461,6 +460,13 @@ static int dwc3_core_init(struct dwc3 *dwc) dwc->is_fpga = true; } + if ((dwc->quirks & DWC3_QUIRK_AMD_NL) && dwc->is_fpga) + dwc->quirks |= DWC3_QUIRK_DISSCRAMBLE; + + if (dwc->quirks & DWC3_QUIRK_DISSCRAMBLE) + reg |= DWC3_GCTL_DISSCRAMBLE; + else + reg &= ~DWC3_GCTL_DISSCRAMBLE; /* * WORKAROUND: DWC3 revisions <1.90a have a bug * where the device can fail to connect at SuperSpeed diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index 18569a4..a89db6c 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -146,6 +146,11 @@ static int dwc3_pci_probe(struct pci_dev *pci, res[1].name = "dwc_usb3"; res[1].flags = IORESOURCE_IRQ; + if (pci->vendor == PCI_VENDOR_ID_AMD && pci->device == + PCI_DEVICE_ID_AMD_NL) { + dwc3_pdata.quirks |= DWC3_QUIRK_AMD_NL; + } + ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res)); if (ret) { dev_err(dev, "couldn't add resources to dwc3 device\n"); diff --git a/drivers/usb/dwc3/platform_data.h b/drivers/usb/dwc3/platform_data.h index 1d3d65f..9c5f074 100644 --- a/drivers/usb/dwc3/platform_data.h +++ b/drivers/usb/dwc3/platform_data.h @@ -26,4 +26,8 @@ struct dwc3_platform_data { bool tx_fifo_resize; u32 quirks; + +#define DWC3_QUIRK_AMD_NL (1 << 0) +#define DWC3_QUIRK_DISSCRAMBLE (1 << 1) + }; -- 1.9.1