Date: Wed, 16 Jul 2014 06:14:41 +0000 (UTC) From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r268735 - head/sys/dev/usb/controller Message-ID: <201407160614.s6G6EffU076405@svn.freebsd.org>
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Author: hselasky Date: Wed Jul 16 06:14:41 2014 New Revision: 268735 URL: http://svnweb.freebsd.org/changeset/base/268735 Log: Improve support for Intel Lynx Point USB 3.0 controllers by using the USB 2.0 port mask in addition to the USB 3.0 port mask. The hardware does not always accept when writing -1U to the port switching registers. MFC after: 3 days Tested by: Huang Wen Hui <huanghwh@gmail.com> Modified: head/sys/dev/usb/controller/xhci_pci.c Modified: head/sys/dev/usb/controller/xhci_pci.c ============================================================================== --- head/sys/dev/usb/controller/xhci_pci.c Wed Jul 16 02:02:46 2014 (r268734) +++ head/sys/dev/usb/controller/xhci_pci.c Wed Jul 16 06:14:41 2014 (r268735) @@ -150,6 +150,8 @@ static int xhci_pci_port_route(device_t self, uint32_t set, uint32_t clear) { uint32_t temp; + uint32_t usb3_mask; + uint32_t usb2_mask; temp = pci_read_config(self, PCI_XHCI_INTEL_USB3_PSSEN, 4) | pci_read_config(self, PCI_XHCI_INTEL_XUSB2PR, 4); @@ -158,10 +160,11 @@ xhci_pci_port_route(device_t self, uint3 temp &= ~clear; /* Don't set bits which the hardware doesn't support */ - temp &= pci_read_config(self, PCI_XHCI_INTEL_USB3PRM, 4); + usb3_mask = pci_read_config(self, PCI_XHCI_INTEL_USB3PRM, 4); + usb2_mask = pci_read_config(self, PCI_XHCI_INTEL_USB2PRM, 4); - pci_write_config(self, PCI_XHCI_INTEL_USB3_PSSEN, temp, 4); - pci_write_config(self, PCI_XHCI_INTEL_XUSB2PR, temp, 4); + pci_write_config(self, PCI_XHCI_INTEL_USB3_PSSEN, temp & usb3_mask, 4); + pci_write_config(self, PCI_XHCI_INTEL_XUSB2PR, temp & usb2_mask, 4); device_printf(self, "Port routing mask set to 0x%08x\n", temp);
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