diff options
Diffstat (limited to 'sys/dev/dpaa/bman_fdt.c')
| -rw-r--r-- | sys/dev/dpaa/bman_fdt.c | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/sys/dev/dpaa/bman_fdt.c b/sys/dev/dpaa/bman_fdt.c new file mode 100644 index 0000000..63f58ad --- /dev/null +++ b/sys/dev/dpaa/bman_fdt.c @@ -0,0 +1,225 @@ +/*- + * 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 <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/bus.h> +#include <sys/module.h> + +#include <machine/bus.h> + +#include <dev/fdt/fdt_common.h> + +#include <dev/ofw/ofw_bus.h> +#include <dev/ofw/ofw_bus_subr.h> +#include <dev/ofw/ofw_subr.h> + +#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), +}; + +static devclass_t bman_devclass; +DRIVER_MODULE(bman, simplebus, bman_driver, bman_devclass, 0, 0); + +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), +}; + +static devclass_t bm_portals_devclass; +DRIVER_MODULE(bman_portals, ofwbus, bm_portals_driver, bm_portals_devclass, 0, 0); + +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) +{ + + if (!ofw_bus_is_compatible(dev, "bman-portals")) + return (ENXIO); + + device_set_desc(dev, BMAN_PORT_DEVSTR); + + return (BUS_PROBE_DEFAULT); +} + +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 (!fdt_is_compatible(child, "fsl,bman-portal")) { + continue; + } + /* Checkout related cpu */ + if (OF_getprop(child, "cpu-handle", (void *)&cpu, + sizeof(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 (cpus > MAXCPU) + break; + + 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); + device_printf(dev, "portal size 1: %jx\n", (uintmax_t)portal_size); + device_printf(dev, "portal size 2: %jx\n", (uintmax_t)rle->end + 1); + portal_size = ulmax(rle->end + 1, portal_size); + sc->sc_dp_size = ulmax(sc->sc_dp_size, portal_size); + device_printf(dev, "winner: %jx\n", (uintmax_t)sc->sc_dp_size); + + if (dpaa_portal_alloc_res(dev, &di, cpu_num)) + goto err; + } + device_printf(dev, "portal start: %jx, size: %jx\n", (uintmax_t)sc->sc_dp_pa, (uintmax_t)sc->sc_dp_size); + + 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); +} |
