diff options
| author | Chris Cappuccio <chris@cvs.openbsd.org> | 2000-01-10 23:28:36 +0000 |
|---|---|---|
| committer | Chris Cappuccio <chris@cvs.openbsd.org> | 2000-01-10 23:28:36 +0000 |
| commit | cdecdf20d199001404750f145830b035f471f125 (patch) | |
| tree | 37800581ffc290ced40fb837babd090043e4d4a6 /sys/dev | |
| parent | 6066316e407d370dd62fa9c9158435213039c4a1 (diff) | |
Don't enable UDMA modes for revisions of SiS 5513 < 0xd0
The only revisions I know which don't actually support UDMA are 0x09 and below..
But the only revision I know which does support UDMA is 0xd0 (and presumably
above that)
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/pci/pciide.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sys/dev/pci/pciide.c b/sys/dev/pci/pciide.c index 03c839a880c..b21751f9117 100644 --- a/sys/dev/pci/pciide.c +++ b/sys/dev/pci/pciide.c @@ -1,4 +1,4 @@ -/* $OpenBSD: pciide.c,v 1.16 2000/01/10 22:54:45 chris Exp $ */ +/* $OpenBSD: pciide.c,v 1.17 2000/01/10 23:28:35 chris Exp $ */ /* $NetBSD: pciide.c,v 1.48 1999/11/28 20:05:18 bouyer Exp $ */ /* @@ -2184,6 +2184,7 @@ sis_chip_map(sc, pa) { struct pciide_channel *cp; int channel; + u_int32_t rev; u_int8_t sis_ctr0 = pciide_pci_read(sc->sc_pc, sc->sc_tag, SIS_CTRL0); pcireg_t interface = PCI_INTERFACE(pci_conf_read(sc->sc_pc, sc->sc_tag, PCI_CLASS_REG)); @@ -2202,7 +2203,10 @@ sis_chip_map(sc, pa) WDC_CAPABILITY_MODE; sc->sc_wdcdev.PIO_cap = 4; sc->sc_wdcdev.DMA_cap = 2; - sc->sc_wdcdev.UDMA_cap = 2; + + rev = pci_conf_read(sc->sc_pc, sc->sc_tag, PCI_CLASS_REG) & PCI_REVISION_MASK; + sc->sc_wdcdev.UDMA_cap = (rev >= 0xd0) ? 2 : 0; + sc->sc_wdcdev.set_modes = sis_setup_channel; sc->sc_wdcdev.channels = sc->wdc_chanarray; sc->sc_wdcdev.nchannels = PCIIDE_NUM_CHANNELS; |