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head/sys/dev/bhnd/cores/chipc/chipc.c
| Show First 20 Lines • Show All 300 Lines • ▼ Show 20 Lines | chipc_add_children(struct chipc_softc *sc) | ||||
| } else if (sc->caps.pwr_ctrl) { | } else if (sc->caps.pwr_ctrl) { | ||||
| child = BUS_ADD_CHILD(sc->dev, 0, "bhnd_pwrctl", 0); | child = BUS_ADD_CHILD(sc->dev, 0, "bhnd_pwrctl", 0); | ||||
| if (child == NULL) { | if (child == NULL) { | ||||
| device_printf(sc->dev, "failed to add pwrctl\n"); | device_printf(sc->dev, "failed to add pwrctl\n"); | ||||
| return (ENXIO); | return (ENXIO); | ||||
| } | } | ||||
| } | } | ||||
| /* GPIO */ | |||||
| child = BUS_ADD_CHILD(sc->dev, 0, "gpio", 0); | |||||
| if (child == NULL) { | |||||
| device_printf(sc->dev, "failed to add gpio\n"); | |||||
| return (ENXIO); | |||||
| } | |||||
| error = chipc_set_mem_resource(sc, child, 0, 0, RM_MAX_END, 0, 0); | |||||
| if (error) { | |||||
| device_printf(sc->dev, "failed to set gpio memory resource: " | |||||
| "%d\n", error); | |||||
| return (error); | |||||
| } | |||||
| /* All remaining devices are SoC-only */ | /* All remaining devices are SoC-only */ | ||||
| if (bhnd_get_attach_type(sc->dev) != BHND_ATTACH_NATIVE) | if (bhnd_get_attach_type(sc->dev) != BHND_ATTACH_NATIVE) | ||||
| return (0); | return (0); | ||||
| /* UARTs */ | /* UARTs */ | ||||
| for (u_int i = 0; i < min(sc->caps.num_uarts, CHIPC_UART_MAX); i++) { | for (u_int i = 0; i < min(sc->caps.num_uarts, CHIPC_UART_MAX); i++) { | ||||
| int irq_rid, mem_rid; | int irq_rid, mem_rid; | ||||
| ▲ Show 20 Lines • Show All 513 Lines • ▼ Show 20 Lines | if (!passthrough && isdefault) { | ||||
| end = rle->end; | end = rle->end; | ||||
| count = ulmax(count, rle->count); | count = ulmax(count, rle->count); | ||||
| } | } | ||||
| /* Locate a mapping region */ | /* Locate a mapping region */ | ||||
| if ((cr = chipc_find_region(sc, start, end)) == NULL) { | if ((cr = chipc_find_region(sc, start, end)) == NULL) { | ||||
| /* Resource requests outside our shared port regions can be | /* Resource requests outside our shared port regions can be | ||||
| * delegated to our parent. */ | * delegated to our parent. */ | ||||
| rv = bus_generic_rl_alloc_resource(dev, child, type, rid, | |||||
| start, end, count, flags); | |||||
| return (rv); | |||||
| } | |||||
| /* | |||||
| * As a special case, children that map the complete ChipCommon register | |||||
| * block are delegated to our parent. | |||||
| * | |||||
| * The rman API does not support sharing resources that are not | |||||
| * identical in size; since we allocate subregions to various children, | |||||
| * any children that need to map the entire register block (e.g. because | |||||
| * they require access to discontiguous register ranges) must make the | |||||
| * allocation through our parent, where we hold a compatible | |||||
| * RF_SHAREABLE allocation. | |||||
| */ | |||||
| if (cr == sc->core_region && cr->cr_addr == start && | |||||
| cr->cr_end == end && cr->cr_count == count) | |||||
| { | |||||
| rv = bus_generic_rl_alloc_resource(dev, child, type, rid, | rv = bus_generic_rl_alloc_resource(dev, child, type, rid, | ||||
| start, end, count, flags); | start, end, count, flags); | ||||
| return (rv); | return (rv); | ||||
| } | } | ||||
| /* Try to retain a region reference */ | /* Try to retain a region reference */ | ||||
| if ((error = chipc_retain_region(sc, cr, RF_ALLOCATED))) | if ((error = chipc_retain_region(sc, cr, RF_ALLOCATED))) | ||||
| return (NULL); | return (NULL); | ||||
| ▲ Show 20 Lines • Show All 575 Lines • Show Last 20 Lines | |||||