/*- * Copyright (c) 2017-2018 QCM Technologies. * Copyright (c) 2017-2018 Semihalf. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include "opt_platform.h" #include <sys/param.h> #include <sys/systm.h> #include <sys/bus.h> #include <sys/conf.h> #include <sys/kernel.h> #include <sys/lock.h> #include <sys/mbuf.h> #include <sys/malloc.h> #include <sys/module.h> #include <sys/mutex.h> #include <sys/rman.h> #include <machine/bus.h> #ifdef FDT #include <dev/ofw/ofw_bus.h> #include <dev/ofw/ofw_bus_subr.h> #endif struct powernv_xscom_softc { }; static int powernv_xscom_attach(device_t); static int powernv_xscom_probe(device_t); static const struct ofw_bus_devinfo * powernv_xscom_get_devinfo(device_t, device_t); static device_method_t powernv_xscom_methods[] = { /* Device interface */ DEVMETHOD(device_probe, powernv_xscom_probe), DEVMETHOD(device_attach, powernv_xscom_attach), /* ofw_bus interface */ DEVMETHOD(ofw_bus_get_devinfo, powernv_xscom_get_devinfo), DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat), DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model), DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name), DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node), DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type), DEVMETHOD_END }; static int powernv_xscom_probe(device_t dev) { if (!(ofw_bus_is_compatible(dev, "ibm,xscom"))) return (ENXIO); device_set_desc(dev, "xscom"); return (0); } static int powernv_xscom_attach(device_t dev) { phandle_t child; device_t cdev; struct ofw_bus_devinfo *dinfo; for (child = OF_child(ofw_bus_get_node(dev)); child != 0; child = OF_peer(child)) { dinfo = malloc(sizeof(*dinfo), M_DEVBUF, M_WAITOK | M_ZERO); if (ofw_bus_gen_setup_devinfo(dinfo, child) != 0) { free(dinfo, M_DEVBUF); continue; } cdev = device_add_child(dev, NULL, DEVICE_UNIT_ANY); if (cdev == NULL) { device_printf(dev, "<%s>: device_add_child failed\n", dinfo->obd_name); ofw_bus_gen_destroy_devinfo(dinfo); free(dinfo, M_DEVBUF); continue; } device_set_ivars(cdev, dinfo); } bus_attach_children(dev); return (0); } static const struct ofw_bus_devinfo * powernv_xscom_get_devinfo(device_t dev, device_t child) { return (device_get_ivars(child)); } DEFINE_CLASS_0(powernv_xscom, powernv_xscom_driver, powernv_xscom_methods, sizeof(struct powernv_xscom_softc)); DRIVER_MODULE(powernv_xscom, ofwbus, powernv_xscom_driver, NULL, NULL);