diff options
Diffstat (limited to 'sys/dev/dpaa/dpaa.c')
| -rw-r--r-- | sys/dev/dpaa/dpaa.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/sys/dev/dpaa/dpaa.c b/sys/dev/dpaa/dpaa.c new file mode 100644 index 0000000..95c04b4 --- /dev/null +++ b/sys/dev/dpaa/dpaa.c @@ -0,0 +1,184 @@ +/*- + * Copyright (c) 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 <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/ktr.h> +#include <sys/kernel.h> +#include <sys/module.h> +#include <sys/bus.h> +#include <sys/rman.h> +#include <sys/malloc.h> + +#include <dev/fdt/fdt_common.h> +#include <dev/ofw/ofw_bus.h> +#include <dev/ofw/ofw_bus_subr.h> +#include <dev/ofw/openfirm.h> + +#include "opt_platform.h" + +static MALLOC_DEFINE(M_DPAA, "dpaa", "dpaa devices information"); + +static int dpaa_probe(device_t dev); +static int dpaa_attach(device_t dev); + +static const struct ofw_bus_devinfo *dpaa_get_devinfo(device_t bus, + device_t child); + +struct dpaa_softc { + +}; + +struct dpaa_devinfo { + struct ofw_bus_devinfo di_ofw; +}; + +static device_method_t dpaa_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, dpaa_probe), + DEVMETHOD(device_attach, dpaa_attach), + DEVMETHOD(device_detach, bus_generic_detach), + DEVMETHOD(device_shutdown, bus_generic_shutdown), + DEVMETHOD(device_suspend, bus_generic_suspend), + DEVMETHOD(device_resume, bus_generic_resume), + + /* OFW bus interface */ + DEVMETHOD(ofw_bus_get_devinfo, dpaa_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), + + {0, 0} +}; + +static driver_t dpaa_driver = { + "dpaa", + dpaa_methods, + sizeof(struct dpaa_softc), +}; + +static devclass_t dpaa_devclass; +DRIVER_MODULE_ORDERED(dpaa, ofwbus, dpaa_driver, dpaa_devclass, 0, 0, + SI_ORDER_ANY); + +static int +dpaa_probe(device_t dev) +{ + + if (!ofw_bus_is_compatible(dev, "fsl,dpaa")) + return (ENXIO); + + device_set_desc(dev, "Freescale Data Path Acceleration Architecture"); + + return (BUS_PROBE_DEFAULT); +} + +static int +dpaa_attach(device_t dev) +{ + device_t dev_child; + phandle_t dt_node, dt_child, enet_node; + struct dpaa_devinfo *di; + pcell_t cell_index; + + cell_index = 0; + /* + * Walk dpaa and add direct subordinates as our children. + */ + dt_node = ofw_bus_get_node(dev); + dt_child = OF_child(dt_node); + + for (; dt_child != 0; dt_child = OF_peer(dt_child)) { + + /* Check and process 'status' property. */ + if (!(fdt_is_enabled(dt_child))) + continue; + + di = (struct dpaa_devinfo *)malloc(sizeof(*di), M_DPAA, + M_WAITOK | M_ZERO); + + if (ofw_bus_gen_setup_devinfo(&di->di_ofw, dt_child) != 0) { + free(di, M_DPAA); + device_printf(dev, "could not set up devinfo\n"); + continue; + } + + /* + * dTSEC number from SoC is equal to number get from + * dts file. + */ + if (OF_getprop(dt_child, "fsl,fman-mac", + (void *)&enet_node, sizeof(enet_node)) == -1) { + device_printf(dev, "Could not get fsl,fman-mac " + "from dts\n"); + continue; + } + + if ((enet_node = OF_instance_to_package(enet_node)) == -1) { + device_printf(dev, "Could not get enet node\n"); + continue; + } + + if (OF_getprop(enet_node, "cell-index", + (void *)&cell_index, sizeof(cell_index)) == -1) { + device_printf(dev, "Could not get cell-index from enet " + "node\n"); + continue; + } + + /* Add newbus device for this FDT node */ + dev_child = device_add_child(dev, "dtsec", (int)cell_index); + if (dev_child == NULL) { + device_printf(dev, "could not add child: %s\n", + di->di_ofw.obd_name); + ofw_bus_gen_destroy_devinfo(&di->di_ofw); + free(di, M_DPAA); + continue; + } + +#ifdef DEBUG + device_printf(dev, "added child: %s\n\n", di->di_ofw.obd_name); +#endif + + device_set_ivars(dev_child, di); + } + + return (bus_generic_attach(dev)); +} + +static const struct ofw_bus_devinfo * +dpaa_get_devinfo(device_t bus, device_t child) +{ + struct dpaa_devinfo *di; + + di = device_get_ivars(child); + return (&di->di_ofw); +} |
