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Add quirk for USB 3.0 controllers which don't support 64-bit DMA.

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MFC after:	3 days
Submitted by:	Gary Jennejohn <gljennjohn@gmail.com>
This commit is contained in:
Hans Petter Selasky 2015-03-03 10:21:54 +00:00
parent 83724a87a4
commit 0c31a8b000
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=279563
1 changed files with 12 additions and 1 deletions
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13
sys/dev/usb/controller/xhci_pci.c
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@ -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);