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Date:      Thu, 8 Nov 2012 16:04:32 +0000 (UTC)
From:      Hans Petter Selasky <hselasky@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org
Subject:   svn commit: r242774 - stable/9/sys/dev/usb/controller
Message-ID:  <201211081604.qA8G4WV5006871@svn.freebsd.org>
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Author: hselasky
Date: Thu Nov  8 16:04:32 2012
New Revision: 242774
URL: http://svnweb.freebsd.org/changeset/base/242774

Log:
  MFC r238551 and r239617:
  Add support for Intel Panther/Lynx Point XHCI port routing.

Modified:
  stable/9/sys/dev/usb/controller/xhci.c
  stable/9/sys/dev/usb/controller/xhci.h
  stable/9/sys/dev/usb/controller/xhci_pci.c
  stable/9/sys/dev/usb/controller/xhcireg.h
Directory Properties:
  stable/9/sys/   (props changed)
  stable/9/sys/dev/   (props changed)

Modified: stable/9/sys/dev/usb/controller/xhci.c
==============================================================================
--- stable/9/sys/dev/usb/controller/xhci.c	Thu Nov  8 13:50:33 2012	(r242773)
+++ stable/9/sys/dev/usb/controller/xhci.c	Thu Nov  8 16:04:32 2012	(r242774)
@@ -84,14 +84,17 @@ __FBSDID("$FreeBSD$");
     ((uint8_t *)&(((struct xhci_softc *)0)->sc_bus))))
 
 #ifdef USB_DEBUG
-static int xhcidebug = 0;
+static int xhcidebug;
+static int xhciroute;
 
 SYSCTL_NODE(_hw_usb, OID_AUTO, xhci, CTLFLAG_RW, 0, "USB XHCI");
 SYSCTL_INT(_hw_usb_xhci, OID_AUTO, debug, CTLFLAG_RW,
     &xhcidebug, 0, "Debug level");
+SYSCTL_INT(_hw_usb_xhci, OID_AUTO, xhci_port_route, CTLFLAG_RW,
+    &xhciroute, 0, "Routing bitmap for switching EHCI ports to XHCI controller");
 
 TUNABLE_INT("hw.usb.xhci.debug", &xhcidebug);
-
+TUNABLE_INT("hw.usb.xhci.xhci_port_route", &xhciroute);
 #endif
 
 #define	XHCI_INTR_ENDPT 1
@@ -177,6 +180,16 @@ xhci_dump_device(struct xhci_softc *sc, 
 }
 #endif
 
+uint32_t
+xhci_get_port_route(void)
+{
+#ifdef USB_DEBUG
+	return (0xFFFFFFFFU ^ ((uint32_t)xhciroute));
+#else
+	return (0xFFFFFFFFU);
+#endif
+}
+
 static void
 xhci_iterate_hw_softc(struct usb_bus *bus, usb_bus_mem_sub_cb_t *cb)
 {

Modified: stable/9/sys/dev/usb/controller/xhci.h
==============================================================================
--- stable/9/sys/dev/usb/controller/xhci.h	Thu Nov  8 13:50:33 2012	(r242773)
+++ stable/9/sys/dev/usb/controller/xhci.h	Thu Nov  8 16:04:32 2012	(r242774)
@@ -490,6 +490,7 @@ struct xhci_softc {
 
 /* prototypes */
 
+uint32_t	xhci_get_port_route(void);
 usb_error_t xhci_halt_controller(struct xhci_softc *);
 usb_error_t xhci_init(struct xhci_softc *, device_t);
 usb_error_t xhci_start_controller(struct xhci_softc *);

Modified: stable/9/sys/dev/usb/controller/xhci_pci.c
==============================================================================
--- stable/9/sys/dev/usb/controller/xhci_pci.c	Thu Nov  8 13:50:33 2012	(r242773)
+++ stable/9/sys/dev/usb/controller/xhci_pci.c	Thu Nov  8 16:04:32 2012	(r242774)
@@ -101,6 +101,8 @@ xhci_pci_match(device_t self)
 
 	case 0x1e318086:
 		return ("Intel Panther Point USB 3.0 controller");
+	case 0x8c318086:
+		return ("Intel Lynx Point USB 3.0 controller");
 
 	default:
 		break;
@@ -245,6 +247,7 @@ static int
 xhci_pci_take_controller(device_t self)
 {
 	struct xhci_softc *sc = device_get_softc(self);
+	uint32_t device_id = pci_get_devid(self);
 	uint32_t cparams;
 	uint32_t eecp;
 	uint32_t eec;
@@ -285,5 +288,13 @@ xhci_pci_take_controller(device_t self)
 			usb_pause_mtx(NULL, hz / 100);	/* wait 10ms */
 		}
 	}
+
+	/* On Intel chipsets reroute ports from EHCI to XHCI controller. */
+	if (device_id == 0x1e318086 /* Panther Point */ ||
+	    device_id == 0x8c318086 /* Lynx Point */) {
+		uint32_t temp = xhci_get_port_route();
+		pci_write_config(self, PCI_XHCI_INTEL_USB3_PSSEN, temp, 4);
+		pci_write_config(self, PCI_XHCI_INTEL_XUSB2PR, temp, 4);
+	}
 	return (0);
 }

Modified: stable/9/sys/dev/usb/controller/xhcireg.h
==============================================================================
--- stable/9/sys/dev/usb/controller/xhcireg.h	Thu Nov  8 13:50:33 2012	(r242773)
+++ stable/9/sys/dev/usb/controller/xhcireg.h	Thu Nov  8 16:04:32 2012	(r242774)
@@ -34,6 +34,9 @@
 #define	PCI_USB_REV_3_0		0x30	/* USB 3.0 */
 #define	PCI_XHCI_FLADJ		0x61	/* RW frame length adjust */
 
+#define	PCI_XHCI_INTEL_XUSB2PR	0xD0	/* Intel USB2 Port Routing */
+#define	PCI_XHCI_INTEL_USB3_PSSEN 0xD8	/* Intel USB3 Port SuperSpeed Enable */
+
 /* XHCI capability registers */
 #define	XHCI_CAPLENGTH		0x00	/* RO capability */
 #define	XHCI_RESERVED		0x01	/* Reserved */

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