FreeBSD/Linux Kernel Cross Reference
sys/dev/dpaa/if_dtsec_fdt.c

     /*-
      * 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: releng/12.0/sys/dev/dpaa/if_dtsec_fdt.c 325305 2017-11-02 04:07:41Z jhibbits $");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/kernel.h>
    #include <sys/bus.h>
    #include <sys/module.h>
    #include <sys/rman.h>
    #include <sys/socket.h>
    
    #include <machine/bus.h>
    
    #include <powerpc/mpc85xx/mpc85xx.h>
    
    #include <net/if.h>
    #include <net/if_media.h>
    
    #include <dev/mii/mii.h>
    #include <dev/mii/miivar.h>
    
    #include <dev/ofw/ofw_bus.h>
    #include <dev/ofw/ofw_bus_subr.h>
    #include <dev/ofw/openfirm.h>
    
    #include "miibus_if.h"
    
    #include <contrib/ncsw/inc/Peripherals/fm_port_ext.h>
    #include <contrib/ncsw/inc/xx_ext.h>
    
    #include "if_dtsec.h"
    #include "fman.h"
    
    
    static int      dtsec_fdt_probe(device_t dev);
    static int      dtsec_fdt_attach(device_t dev);
    
    static device_method_t dtsec_methods[] = {
            /* Device interface */
            DEVMETHOD(device_probe,         dtsec_fdt_probe),
            DEVMETHOD(device_attach,        dtsec_fdt_attach),
            DEVMETHOD(device_detach,        dtsec_detach),
    
            DEVMETHOD(device_shutdown,      dtsec_shutdown),
            DEVMETHOD(device_suspend,       dtsec_suspend),
            DEVMETHOD(device_resume,        dtsec_resume),
    
            /* Bus interface */
            DEVMETHOD(bus_print_child,      bus_generic_print_child),
            DEVMETHOD(bus_driver_added,     bus_generic_driver_added),
    
            /* MII interface */
            DEVMETHOD(miibus_readreg,       dtsec_miibus_readreg),
            DEVMETHOD(miibus_writereg,      dtsec_miibus_writereg),
            DEVMETHOD(miibus_statchg,       dtsec_miibus_statchg),
    
            { 0, 0 }
    };
    
    static driver_t dtsec_driver = {
            "dtsec",
            dtsec_methods,
            sizeof(struct dtsec_softc),
    };
    
    static devclass_t dtsec_devclass;
    DRIVER_MODULE(dtsec, fman, dtsec_driver, dtsec_devclass, 0, 0);
    DRIVER_MODULE(miibus, dtsec, miibus_driver, miibus_devclass, 0, 0);
    MODULE_DEPEND(dtsec, ether, 1, 1, 1);
    MODULE_DEPEND(dtsec, miibus, 1, 1, 1);
    
    static int
    dtsec_fdt_probe(device_t dev)
   {
   
           if (!ofw_bus_is_compatible(dev, "fsl,fman-dtsec") &&
               !ofw_bus_is_compatible(dev, "fsl,fman-xgec"))
                   return (ENXIO);
   
           device_set_desc(dev, "Freescale Data Path Triple Speed Ethernet "
               "Controller");
   
           return (BUS_PROBE_DEFAULT);
   }
   
   static int
   find_mdio(phandle_t phy_node, device_t mac, device_t *mdio_dev)
   {
           device_t bus;
   
           while (phy_node > 0) {
                   if (ofw_bus_node_is_compatible(phy_node, "fsl,fman-mdio"))
                           break;
                   phy_node = OF_parent(phy_node);
           }
   
           if (phy_node <= 0)
                   return (ENOENT);
   
           bus = device_get_parent(mac);
           *mdio_dev = ofw_bus_find_child_device_by_phandle(bus, phy_node);
   
           return (0);
   }
   
   static int
   dtsec_fdt_attach(device_t dev)
   {
           struct dtsec_softc *sc;
           phandle_t enet_node, phy_node;
           phandle_t fman_rxtx_node[2];
           char phy_type[6];
           pcell_t fman_tx_cell, mac_id;
           int rid;
   
           sc = device_get_softc(dev);
           enet_node = ofw_bus_get_node(dev);
   
           if (OF_getprop(enet_node, "local-mac-address",
               (void *)sc->sc_mac_addr, 6) == -1) {
                   device_printf(dev,
                       "Could not load local-mac-addr property from DTS\n");
                   return (ENXIO);
           }
   
           /* Get link speed */
           if (ofw_bus_is_compatible(dev, "fsl,fman-dtsec") != 0)
                   sc->sc_eth_dev_type = ETH_DTSEC;
           else if (ofw_bus_is_compatible(dev, "fsl,fman-xgec") != 0)
                   sc->sc_eth_dev_type = ETH_10GSEC;
           else
                   return(ENXIO);
   
           /* Get MAC memory offset in SoC */
           rid = 0;
           sc->sc_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
           if (sc->sc_mem == NULL)
                   return (ENXIO);
   
           /* Get PHY address */
           if (OF_getprop(enet_node, "phy-handle", (void *)&phy_node,
               sizeof(phy_node)) <= 0)
                   return (ENXIO);
   
           phy_node = OF_instance_to_package(phy_node);
   
           if (OF_getprop(phy_node, "reg", (void *)&sc->sc_phy_addr,
               sizeof(sc->sc_phy_addr)) <= 0)
                   return (ENXIO);
   
           if (find_mdio(phy_node, dev, &sc->sc_mdio) != 0)
                   return (ENXIO);
   
           /* Get PHY connection type */
           if (OF_getprop(enet_node, "phy-connection-type", (void *)phy_type,
               sizeof(phy_type)) <= 0)
                   return (ENXIO);
   
           if (!strcmp(phy_type, "sgmii"))
                   sc->sc_mac_enet_mode = e_ENET_MODE_SGMII_1000;
           else if (!strcmp(phy_type, "rgmii"))
                   sc->sc_mac_enet_mode = e_ENET_MODE_RGMII_1000;
           else if (!strcmp(phy_type, "xgmii"))
                   /* We set 10 Gigabit mode flag however we don't support it */
                   sc->sc_mac_enet_mode = e_ENET_MODE_XGMII_10000;
           else
                   return (ENXIO);
   
           if (OF_getencprop(enet_node, "cell-index",
               (void *)&mac_id, sizeof(mac_id)) <= 0)
                   return (ENXIO);
           sc->sc_eth_id = mac_id;
   
           /* Get RX/TX port handles */
           if (OF_getprop(enet_node, "fsl,fman-ports", (void *)fman_rxtx_node,
               sizeof(fman_rxtx_node)) <= 0)
                   return (ENXIO);
   
           if (fman_rxtx_node[0] == 0)
                   return (ENXIO);
   
           if (fman_rxtx_node[1] == 0)
                   return (ENXIO);
   
           fman_rxtx_node[0] = OF_instance_to_package(fman_rxtx_node[0]);
           fman_rxtx_node[1] = OF_instance_to_package(fman_rxtx_node[1]);
   
           if (ofw_bus_node_is_compatible(fman_rxtx_node[0],
               "fsl,fman-v2-port-rx") == 0)
                   return (ENXIO);
   
           if (ofw_bus_node_is_compatible(fman_rxtx_node[1],
               "fsl,fman-v2-port-tx") == 0)
                   return (ENXIO);
   
           /* Get RX port HW id */
           if (OF_getprop(fman_rxtx_node[0], "reg", (void *)&sc->sc_port_rx_hw_id,
               sizeof(sc->sc_port_rx_hw_id)) <= 0)
                   return (ENXIO);
   
           /* Get TX port HW id */
           if (OF_getprop(fman_rxtx_node[1], "reg", (void *)&sc->sc_port_tx_hw_id,
               sizeof(sc->sc_port_tx_hw_id)) <= 0)
                   return (ENXIO);
   
           if (OF_getprop(fman_rxtx_node[1], "cell-index", &fman_tx_cell,
               sizeof(fman_tx_cell)) <= 0)
                   return (ENXIO);
           /* Get QMan channel */
           sc->sc_port_tx_qman_chan = fman_qman_channel_id(device_get_parent(dev),
               fman_tx_cell);
   
           return (dtsec_attach(dev));
   }

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