1 /*- 2 * Copyright (c) 2011-2012 Stefan Bethke. 3 * Copyright (c) 2012 Adrian Chadd. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 30 #include <sys/param.h> 31 #include <sys/bus.h> 32 #include <sys/errno.h> 33 #include <sys/kernel.h> 34 #include <sys/module.h> 35 #include <sys/socket.h> 36 #include <sys/sockio.h> 37 #include <sys/sysctl.h> 38 #include <sys/systm.h> 39 40 #include <net/if.h> 41 #include <net/if_arp.h> 42 #include <net/ethernet.h> 43 #include <net/if_dl.h> 44 #include <net/if_media.h> 45 #include <net/if_types.h> 46 47 #include <machine/bus.h> 48 #include <dev/iicbus/iic.h> 49 #include <dev/iicbus/iiconf.h> 50 #include <dev/iicbus/iicbus.h> 51 #include <dev/mii/mii.h> 52 #include <dev/mii/miivar.h> 53 #include <dev/mdio/mdio.h> 54 55 #include <dev/etherswitch/etherswitch.h> 56 57 #include <dev/etherswitch/arswitch/arswitchreg.h> 58 #include <dev/etherswitch/arswitch/arswitchvar.h> 59 #include <dev/etherswitch/arswitch/arswitch_reg.h> 60 #include <dev/etherswitch/arswitch/arswitch_phy.h> /* XXX for probe */ 61 #include <dev/etherswitch/arswitch/arswitch_7240.h> 62 63 #include "mdio_if.h" 64 #include "miibus_if.h" 65 #include "etherswitch_if.h" 66 67 /* 68 * AR7240 specific functions 69 */ 70 static int 71 ar7240_hw_setup(struct arswitch_softc *sc) 72 { 73 74 return (0); 75 } 76 77 /* 78 * Initialise other global values for the AR7240. 79 */ 80 static int 81 ar7240_hw_global_setup(struct arswitch_softc *sc) 82 { 83 84 ARSWITCH_LOCK(sc); 85 86 /* Enable CPU port; disable mirror port */ 87 arswitch_writereg(sc->sc_dev, AR8X16_REG_CPU_PORT, 88 AR8X16_CPU_PORT_EN | AR8X16_CPU_MIRROR_DIS); 89 90 /* Setup TAG priority mapping */ 91 arswitch_writereg(sc->sc_dev, AR8X16_REG_TAG_PRIO, 0xfa50); 92 93 /* Enable broadcast frames transmitted to the CPU */ 94 arswitch_writereg(sc->sc_dev, AR8X16_REG_FLOOD_MASK, 95 AR8X16_FLOOD_MASK_BCAST_TO_CPU | 0x003f003f); 96 97 /* Setup MTU */ 98 arswitch_modifyreg(sc->sc_dev, AR8X16_REG_GLOBAL_CTRL, 99 AR7240_GLOBAL_CTRL_MTU_MASK, 100 SM(1536, AR7240_GLOBAL_CTRL_MTU_MASK)); 101 102 /* XXX ARP? Frame Age enable? */ 103 104 /* Service Tag */ 105 arswitch_modifyreg(sc->sc_dev, AR8X16_REG_SERVICE_TAG, 106 AR8X16_SERVICE_TAG_MASK, 0); 107 108 ARSWITCH_UNLOCK(sc); 109 110 return (0); 111 } 112 113 /* 114 * The AR7240 probes the same as the AR8216. 115 * 116 * However, the support is slightly different. 117 * 118 * So instead of checking the PHY revision or mask register contents, 119 * we simply fall back to a hint check. 120 */ 121 int 122 ar7240_probe(device_t dev) 123 { 124 int is_7240 = 0; 125 126 if (resource_int_value(device_get_name(dev), device_get_unit(dev), 127 "is_7240", &is_7240) != 0) 128 return (ENXIO); 129 130 if (is_7240 == 0) 131 return (ENXIO); 132 133 return (0); 134 } 135 136 void 137 ar7240_attach(struct arswitch_softc *sc) 138 { 139 140 sc->hal.arswitch_hw_setup = ar7240_hw_setup; 141 sc->hal.arswitch_hw_global_setup = ar7240_hw_global_setup; 142 143 /* Set the switch vlan capabilities. */ 144 sc->info.es_vlan_caps = ETHERSWITCH_VLAN_DOT1Q | 145 ETHERSWITCH_VLAN_PORT | ETHERSWITCH_VLAN_DOUBLE_TAG; 146 sc->info.es_nvlangroups = AR8X16_MAX_VLANS; 147 } 148