Date: Tue, 3 Mar 2015 10:21:55 +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: r279563 - head/sys/dev/usb/controller Message-ID: <201503031021.t23ALtIK094082@svn.freebsd.org>
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Author: hselasky Date: Tue Mar 3 10:21:54 2015 New Revision: 279563 URL: https://svnweb.freebsd.org/changeset/base/279563 Log: Add quirk for USB 3.0 controllers which don't support 64-bit DMA. MFC after: 3 days Submitted by: Gary Jennejohn <gljennjohn@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 Tue Mar 3 10:11:58 2015 (r279562) +++ head/sys/dev/usb/controller/xhci_pci.c Tue Mar 3 10:21:54 2015 (r279563) @@ -180,6 +180,7 @@ xhci_pci_attach(device_t self) { struct xhci_softc *sc = device_get_softc(self); int count, err, rid; + uint8_t usedma32; rid = PCI_XHCI_CBMEM; sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid, @@ -192,7 +193,17 @@ xhci_pci_attach(device_t self) sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res); sc->sc_io_size = rman_get_size(sc->sc_io_res); - if (xhci_init(sc, self, 0)) { + /* check for USB 3.0 controllers which don't support 64-bit DMA */ + switch (pci_get_devid(self)) { + case 0x01941033: /* NEC uPD720200 USB 3.0 controller */ + usedma32 = 1; + break; + default: + usedma32 = 0; + break; + } + + if (xhci_init(sc, self, usedma32)) { device_printf(self, "Could not initialize softc\n"); bus_release_resource(self, SYS_RES_MEMORY, PCI_XHCI_CBMEM, sc->sc_io_res);
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