diff options
Diffstat (limited to 'sys/dev/usb/ohci.c')
| -rw-r--r-- | sys/dev/usb/ohci.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/sys/dev/usb/ohci.c b/sys/dev/usb/ohci.c index a54f21b..2e4585b 100644 --- a/sys/dev/usb/ohci.c +++ b/sys/dev/usb/ohci.c @@ -1,4 +1,4 @@ -/* $NetBSD: ohci.c,v 1.65 2000/01/25 12:06:21 augustss Exp $ */ +/* $NetBSD: ohci.c,v 1.68 2000/01/31 20:17:25 augustss Exp $ */ /* $FreeBSD$ */ /* @@ -641,7 +641,7 @@ ohci_init(sc) ohci_soft_ed_t *sed, *psed; usbd_status err; int i; - u_int32_t s, ctl, ival, hcr, fm, per, rev; + u_int32_t s, ctl, ival, hcr, fm, per, rev, desca; DPRINTF(("ohci_init: start\n")); #if defined(__OpenBSD__) @@ -815,7 +815,12 @@ ohci_init(sc) per = OHCI_PERIODIC(ival); /* 90% periodic */ OWRITE4(sc, OHCI_PERIODIC_START, per); - OWRITE4(sc, OHCI_RH_STATUS, OHCI_LPSC); /* Enable port power */ + /* Fiddle the No OverCurrent Protection bit to avoid chip bug. */ + desca = OREAD4(sc, OHCI_RH_DESCRIPTOR_A); + OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca | OHCI_NOCP); + OWRITE4(sc, OHCI_RH_STATUS, OHCI_LPSC); /* Enable port power */ + usb_delay_ms(&sc->sc_bus, 5); + OWRITE4(sc, OHCI_RH_DESCRIPTOR_A, desca); sc->sc_noport = OHCI_GET_NDP(OREAD4(sc, OHCI_RH_DESCRIPTOR_A)); |
