diff options
Diffstat (limited to 'sys/dev/ste/if_ste.c')
| -rw-r--r-- | sys/dev/ste/if_ste.c | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/sys/dev/ste/if_ste.c b/sys/dev/ste/if_ste.c index 78c0290..e3297e6 100644 --- a/sys/dev/ste/if_ste.c +++ b/sys/dev/ste/if_ste.c @@ -1059,7 +1059,7 @@ ste_attach(device_t dev) struct ste_softc *sc; struct ifnet *ifp; uint16_t eaddr[ETHER_ADDR_LEN / 2]; - int error = 0, pmc, rid; + int error = 0, pmc, prefer_iomap, rid; sc = device_get_softc(dev); sc->ste_dev = dev; @@ -1081,12 +1081,25 @@ ste_attach(device_t dev) */ pci_enable_busmaster(dev); - /* Prefer memory space register mapping over IO space. */ - sc->ste_res_id = PCIR_BAR(1); - sc->ste_res_type = SYS_RES_MEMORY; - sc->ste_res = bus_alloc_resource_any(dev, sc->ste_res_type, - &sc->ste_res_id, RF_ACTIVE); - if (sc->ste_res == NULL) { + /* + * Prefer memory space register mapping over IO space but use + * IO space for a device that is known to have issues on memory + * mapping. + */ + prefer_iomap = 0; + if (pci_get_device(dev) == ST_DEVICEID_ST201_1) + prefer_iomap = 1; + else + resource_int_value(device_get_name(sc->ste_dev), + device_get_unit(sc->ste_dev), "prefer_iomap", + &prefer_iomap); + if (prefer_iomap == 0) { + sc->ste_res_id = PCIR_BAR(1); + sc->ste_res_type = SYS_RES_MEMORY; + sc->ste_res = bus_alloc_resource_any(dev, sc->ste_res_type, + &sc->ste_res_id, RF_ACTIVE); + } + if (prefer_iomap || sc->ste_res == NULL) { sc->ste_res_id = PCIR_BAR(0); sc->ste_res_type = SYS_RES_IOPORT; sc->ste_res = bus_alloc_resource_any(dev, sc->ste_res_type, |
