/*- * Copyright (c) 2011-2012 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 #include #include #include #include #include #include #include #include #include #include "bman.h" #include "portals.h" #define FBMAN_DEVSTR "Freescale Buffer Manager" static int bman_fdt_probe(device_t); static device_method_t bman_methods[] = { /* Device interface */ DEVMETHOD(device_probe, bman_fdt_probe), DEVMETHOD(device_attach, bman_attach), DEVMETHOD(device_detach, bman_detach), DEVMETHOD(device_suspend, bman_suspend), DEVMETHOD(device_resume, bman_resume), DEVMETHOD(device_shutdown, bman_shutdown), { 0, 0 } }; static driver_t bman_driver = { "bman", bman_methods, sizeof(struct bman_softc), }; EARLY_DRIVER_MODULE(bman, simplebus, bman_driver, 0, 0, BUS_PASS_SUPPORTDEV); static int bman_fdt_probe(device_t dev) { if (!ofw_bus_is_compatible(dev, "fsl,bman")) return (ENXIO); device_set_desc(dev, FBMAN_DEVSTR); return (BUS_PROBE_DEFAULT); } /* * BMAN Portals */ #define BMAN_PORT_DEVSTR "Freescale Buffer Manager - Portals" static device_probe_t bman_portals_fdt_probe; static device_attach_t bman_portals_fdt_attach; static device_method_t bm_portals_methods[] = { /* Device interface */ DEVMETHOD(device_probe, bman_portals_fdt_probe), DEVMETHOD(device_attach, bman_portals_fdt_attach), DEVMETHOD(device_detach, bman_portals_detach), { 0, 0 } }; static driver_t bm_portals_driver = { "bman-portals", bm_portals_methods, sizeof(struct dpaa_portals_softc), }; EARLY_DRIVER_MODULE(bman_portals, ofwbus, bm_portals_driver, 0, 0, BUS_PASS_BUS); static void get_addr_props(phandle_t node, uint32_t *addrp, uint32_t *sizep) { *addrp = 2; *sizep = 1; OF_getencprop(node, "#address-cells", addrp, sizeof(*addrp)); OF_getencprop(node, "#size-cells", sizep, sizeof(*sizep)); } static int bman_portals_fdt_probe(device_t dev) { phandle_t node; if (ofw_bus_is_compatible(dev, "simple-bus")) { node = ofw_bus_get_node(dev); for (node = OF_child(node); node > 0; node = OF_peer(node)) { if (ofw_bus_node_is_compatible(node, "fsl,bman-portal")) break; } if (node <= 0) return (ENXIO); } else if (!ofw_bus_is_compatible(dev, "fsl,bman-portals")) return (ENXIO); device_set_desc(dev, BMAN_PORT_DEVSTR); return (BUS_PROBE_DEFAULT); } static phandle_t bman_portal_find_cpu(int cpu) { phandle_t node; pcell_t reg; node = OF_finddevice("/cpus"); if (node == -1) return (node); for (node = OF_child(node); node != 0; node = OF_peer(node)) { if (OF_getprop(node, "reg", ®, sizeof(reg)) <= 0) continue; if (reg == cpu) return (node); } return (-1); } static int bman_portals_fdt_attach(device_t dev) { struct dpaa_portals_softc *sc; struct resource_list_entry *rle; phandle_t node, child, cpu_node; vm_paddr_t portal_pa; vm_size_t portal_size; uint32_t addr, size; ihandle_t cpu; int cpu_num, cpus, intr_rid; struct dpaa_portals_devinfo di; struct ofw_bus_devinfo ofw_di = {}; cpus = 0; sc = device_get_softc(dev); sc->sc_dev = dev; node = ofw_bus_get_node(dev); get_addr_props(node, &addr, &size); /* Find portals tied to CPUs */ for (child = OF_child(node); child != 0; child = OF_peer(child)) { if (cpus >= mp_ncpus) break; if (!ofw_bus_node_is_compatible(child, "fsl,bman-portal")) { continue; } /* Checkout related cpu */ if (OF_getprop(child, "cpu-handle", (void *)&cpu, sizeof(cpu)) <= 0) { cpu = bman_portal_find_cpu(cpus); if (cpu <= 0) continue; } /* Acquire cpu number */ cpu_node = OF_instance_to_package(cpu); if (OF_getencprop(cpu_node, "reg", &cpu_num, sizeof(cpu_num)) <= 0) { device_printf(dev, "Could not retrieve CPU number.\n"); return (ENXIO); } cpus++; if (ofw_bus_gen_setup_devinfo(&ofw_di, child) != 0) { device_printf(dev, "could not set up devinfo\n"); continue; } resource_list_init(&di.di_res); if (ofw_bus_reg_to_rl(dev, child, addr, size, &di.di_res)) { device_printf(dev, "%s: could not process 'reg' " "property\n", ofw_di.obd_name); ofw_bus_gen_destroy_devinfo(&ofw_di); continue; } if (ofw_bus_intr_to_rl(dev, child, &di.di_res, &intr_rid)) { device_printf(dev, "%s: could not process " "'interrupts' property\n", ofw_di.obd_name); resource_list_free(&di.di_res); ofw_bus_gen_destroy_devinfo(&ofw_di); continue; } di.di_intr_rid = intr_rid; ofw_reg_to_paddr(child, 0, &portal_pa, &portal_size, NULL); rle = resource_list_find(&di.di_res, SYS_RES_MEMORY, 0); if (sc->sc_dp_pa == 0) sc->sc_dp_pa = portal_pa - rle->start; portal_size = rle->end + 1; rle = resource_list_find(&di.di_res, SYS_RES_MEMORY, 1); portal_size = ulmax(rle->end + 1, portal_size); sc->sc_dp_size = ulmax(sc->sc_dp_size, portal_size); if (dpaa_portal_alloc_res(dev, &di, cpu_num)) goto err; } ofw_bus_gen_destroy_devinfo(&ofw_di); return (bman_portals_attach(dev)); err: resource_list_free(&di.di_res); ofw_bus_gen_destroy_devinfo(&ofw_di); bman_portals_detach(dev); return (ENXIO); }