1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2011-2012 Stefan Bethke. 5 * Copyright (c) 2012 Adrian Chadd. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 32 #include <sys/param.h> 33 #include <sys/bus.h> 34 #include <sys/errno.h> 35 #include <sys/kernel.h> 36 #include <sys/module.h> 37 #include <sys/socket.h> 38 #include <sys/sockio.h> 39 #include <sys/sysctl.h> 40 #include <sys/systm.h> 41 42 #include <net/if.h> 43 #include <net/if_arp.h> 44 #include <net/ethernet.h> 45 #include <net/if_dl.h> 46 #include <net/if_media.h> 47 #include <net/if_types.h> 48 49 #include <machine/bus.h> 50 #include <dev/iicbus/iic.h> 51 #include <dev/iicbus/iiconf.h> 52 #include <dev/iicbus/iicbus.h> 53 #include <dev/mii/mii.h> 54 #include <dev/mii/miivar.h> 55 #include <dev/mdio/mdio.h> 56 57 #include <dev/etherswitch/etherswitch.h> 58 59 #include <dev/etherswitch/arswitch/arswitchreg.h> 60 #include <dev/etherswitch/arswitch/arswitchvar.h> 61 #include <dev/etherswitch/arswitch/arswitch_reg.h> 62 #include <dev/etherswitch/arswitch/arswitch_phy.h> /* XXX for probe */ 63 #include <dev/etherswitch/arswitch/arswitch_7240.h> 64 65 #include "mdio_if.h" 66 #include "miibus_if.h" 67 #include "etherswitch_if.h" 68 69 /* 70 * AR7240 specific functions 71 */ 72 static int 73 ar7240_hw_setup(struct arswitch_softc *sc) 74 { 75 76 return (0); 77 } 78 79 /* 80 * Initialise other global values for the AR7240. 81 */ 82 static int 83 ar7240_hw_global_setup(struct arswitch_softc *sc) 84 { 85 86 ARSWITCH_LOCK(sc); 87 88 /* Enable CPU port; disable mirror port */ 89 arswitch_writereg(sc->sc_dev, AR8X16_REG_CPU_PORT, 90 AR8X16_CPU_PORT_EN | AR8X16_CPU_MIRROR_DIS); 91 92 /* Setup TAG priority mapping */ 93 arswitch_writereg(sc->sc_dev, AR8X16_REG_TAG_PRIO, 0xfa50); 94 95 /* Enable broadcast frames transmitted to the CPU */ 96 arswitch_writereg(sc->sc_dev, AR8X16_REG_FLOOD_MASK, 97 AR8X16_FLOOD_MASK_BCAST_TO_CPU | 0x003f003f); 98 99 /* Setup MTU */ 100 arswitch_modifyreg(sc->sc_dev, AR8X16_REG_GLOBAL_CTRL, 101 AR7240_GLOBAL_CTRL_MTU_MASK, 102 SM(1536, AR7240_GLOBAL_CTRL_MTU_MASK)); 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