diff options
| author | augustss <augustss@NetBSD.org> | 2003-11-23 19:20:25 +0000 |
|---|---|---|
| committer | augustss <augustss@NetBSD.org> | 2003-11-23 19:20:25 +0000 |
| commit | 0e57233a47d28df29580a9dfaa442d5680fc8dea (patch) | |
| tree | 3ed82915336466e83260f5c1245d6aff7e87f4ff /sys/dev | |
| parent | 50ce2db105ed5e2a10fadf29cf86359c3e64d6b8 (diff) | |
Try harder to avoid 0 ports woth AMD756. From OpenBSD.
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/usb/ohci.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/sys/dev/usb/ohci.c b/sys/dev/usb/ohci.c index 349d7495af0..e6568d746eb 100644 --- a/sys/dev/usb/ohci.c +++ b/sys/dev/usb/ohci.c @@ -1,4 +1,4 @@ -/* $NetBSD: ohci.c,v 1.144 2003/11/23 19:18:06 augustss Exp $ */ +/* $NetBSD: ohci.c,v 1.145 2003/11/23 19:20:25 augustss Exp $ */ /* $FreeBSD: src/sys/dev/usb/ohci.c,v 1.22 1999/11/17 22:33:40 n_hibma Exp $ */ /* @@ -46,7 +46,7 @@ */ #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: ohci.c,v 1.144 2003/11/23 19:18:06 augustss Exp $"); +__KERNEL_RCSID(0, "$NetBSD: ohci.c,v 1.145 2003/11/23 19:20:25 augustss Exp $"); #include <sys/param.h> #include <sys/systm.h> @@ -854,8 +854,11 @@ ohci_init(ohci_softc_t *sc) * The AMD756 requires a delay before re-reading the register, * otherwise it will occasionally report 0 ports. */ - usb_delay_ms(&sc->sc_bus, OHCI_READ_DESC_DELAY); - sc->sc_noport = OHCI_GET_NDP(OREAD4(sc, OHCI_RH_DESCRIPTOR_A)); + sc->sc_noport = 0; + for (i = 0; i < 10 && sc->sc_noport == 0; i++) { + usb_delay_ms(&sc->sc_bus, OHCI_READ_DESC_DELAY); + sc->sc_noport = OHCI_GET_NDP(OREAD4(sc, OHCI_RH_DESCRIPTOR_A)); + } #ifdef OHCI_DEBUG if (ohcidebug > 5) |
