arswitch_8316.c revision 235288
1235288Sadrian/*- 2235288Sadrian * Copyright (c) 2011-2012 Stefan Bethke. 3235288Sadrian * Copyright (c) 2012 Adrian Chadd. 4235288Sadrian * All rights reserved. 5235288Sadrian * 6235288Sadrian * Redistribution and use in source and binary forms, with or without 7235288Sadrian * modification, are permitted provided that the following conditions 8235288Sadrian * are met: 9235288Sadrian * 1. Redistributions of source code must retain the above copyright 10235288Sadrian * notice, this list of conditions and the following disclaimer. 11235288Sadrian * 2. Redistributions in binary form must reproduce the above copyright 12235288Sadrian * notice, this list of conditions and the following disclaimer in the 13235288Sadrian * documentation and/or other materials provided with the distribution. 14235288Sadrian * 15235288Sadrian * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16235288Sadrian * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17235288Sadrian * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18235288Sadrian * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19235288Sadrian * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20235288Sadrian * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21235288Sadrian * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22235288Sadrian * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23235288Sadrian * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24235288Sadrian * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25235288Sadrian * SUCH DAMAGE. 26235288Sadrian * 27235288Sadrian * $FreeBSD: head/sys/dev/etherswitch/arswitch/arswitch_8316.c 235288 2012-05-11 20:53:20Z adrian $ 28235288Sadrian */ 29235288Sadrian 30235288Sadrian#include <sys/param.h> 31235288Sadrian#include <sys/bus.h> 32235288Sadrian#include <sys/errno.h> 33235288Sadrian#include <sys/kernel.h> 34235288Sadrian#include <sys/module.h> 35235288Sadrian#include <sys/socket.h> 36235288Sadrian#include <sys/sockio.h> 37235288Sadrian#include <sys/sysctl.h> 38235288Sadrian#include <sys/systm.h> 39235288Sadrian 40235288Sadrian#include <net/if.h> 41235288Sadrian#include <net/if_arp.h> 42235288Sadrian#include <net/ethernet.h> 43235288Sadrian#include <net/if_dl.h> 44235288Sadrian#include <net/if_media.h> 45235288Sadrian#include <net/if_types.h> 46235288Sadrian 47235288Sadrian#include <machine/bus.h> 48235288Sadrian#include <dev/iicbus/iic.h> 49235288Sadrian#include <dev/iicbus/iiconf.h> 50235288Sadrian#include <dev/iicbus/iicbus.h> 51235288Sadrian#include <dev/mii/mii.h> 52235288Sadrian#include <dev/mii/miivar.h> 53235288Sadrian#include <dev/etherswitch/mdio.h> 54235288Sadrian 55235288Sadrian#include <dev/etherswitch/etherswitch.h> 56235288Sadrian 57235288Sadrian#include <dev/etherswitch/arswitch/arswitchreg.h> 58235288Sadrian#include <dev/etherswitch/arswitch/arswitchvar.h> 59235288Sadrian#include <dev/etherswitch/arswitch/arswitch_reg.h> 60235288Sadrian#include <dev/etherswitch/arswitch/arswitch_8316.h> 61235288Sadrian 62235288Sadrian#include "mdio_if.h" 63235288Sadrian#include "miibus_if.h" 64235288Sadrian#include "etherswitch_if.h" 65235288Sadrian 66235288Sadrian/* 67235288Sadrian * AR8316 specific functions 68235288Sadrian */ 69235288Sadrianstatic int 70235288Sadrianar8316_hw_setup(struct arswitch_softc *sc) 71235288Sadrian{ 72235288Sadrian 73235288Sadrian /* 74235288Sadrian * Configure the switch mode based on whether: 75235288Sadrian * 76235288Sadrian * + The switch port is GMII/RGMII; 77235288Sadrian * + Port 4 is either connected to the CPU or to the internal switch. 78235288Sadrian */ 79235288Sadrian if (sc->is_rgmii && sc->phy4cpu) { 80235288Sadrian arswitch_writereg(sc->sc_dev, AR8X16_REG_MODE, 81235288Sadrian AR8X16_MODE_RGMII_PORT4_ISO); 82235288Sadrian device_printf(sc->sc_dev, 83235288Sadrian "%s: MAC port == RGMII, port 4 = dedicated PHY\n", 84235288Sadrian __func__); 85235288Sadrian } else if (sc->is_rgmii) { 86235288Sadrian arswitch_writereg(sc->sc_dev, AR8X16_REG_MODE, 87235288Sadrian AR8X16_MODE_RGMII_PORT4_SWITCH); 88235288Sadrian device_printf(sc->sc_dev, 89235288Sadrian "%s: MAC port == RGMII, port 4 = switch port\n", 90235288Sadrian __func__); 91235288Sadrian } else if (sc->is_gmii) { 92235288Sadrian arswitch_writereg(sc->sc_dev, AR8X16_REG_MODE, 93235288Sadrian AR8X16_MODE_GMII); 94235288Sadrian device_printf(sc->sc_dev, "%s: MAC port == GMII\n", __func__); 95235288Sadrian } else { 96235288Sadrian device_printf(sc->sc_dev, "%s: unknown switch PHY config\n", 97235288Sadrian __func__); 98235288Sadrian return (ENXIO); 99235288Sadrian } 100235288Sadrian 101235288Sadrian DELAY(1000); /* 1ms wait for things to settle */ 102235288Sadrian 103235288Sadrian /* 104235288Sadrian * If port 4 is RGMII, force workaround 105235288Sadrian */ 106235288Sadrian if (sc->is_rgmii && sc->phy4cpu) { 107235288Sadrian device_printf(sc->sc_dev, 108235288Sadrian "%s: port 4 RGMII workaround\n", 109235288Sadrian __func__); 110235288Sadrian 111235288Sadrian /* work around for phy4 rgmii mode */ 112235288Sadrian arswitch_writedbg(sc->sc_dev, 4, 0x12, 0x480c); 113235288Sadrian /* rx delay */ 114235288Sadrian arswitch_writedbg(sc->sc_dev, 4, 0x0, 0x824e); 115235288Sadrian /* tx delay */ 116235288Sadrian arswitch_writedbg(sc->sc_dev, 4, 0x5, 0x3d47); 117235288Sadrian DELAY(1000); /* 1ms, again to let things settle */ 118235288Sadrian } 119235288Sadrian 120235288Sadrian return (0); 121235288Sadrian} 122235288Sadrian 123235288Sadrian/* 124235288Sadrian * Initialise other global values, for the AR8316. 125235288Sadrian */ 126235288Sadrianstatic int 127235288Sadrianar8316_hw_global_setup(struct arswitch_softc *sc) 128235288Sadrian{ 129235288Sadrian 130235288Sadrian arswitch_writereg(sc->sc_dev, 0x38, 0xc000050e); 131235288Sadrian arswitch_writereg(sc->sc_dev, AR8X16_REG_FLOOD_MASK, 0x003f003f); 132235288Sadrian arswitch_modifyreg(sc->sc_dev, AR8X16_REG_GLOBAL_CTRL, 133235288Sadrian AR8316_GLOBAL_CTRL_MTU_MASK, 9018 + 8 + 2); 134235288Sadrian 135235288Sadrian return (0); 136235288Sadrian} 137235288Sadrian 138235288Sadrianvoid 139235288Sadrianar8316_attach(struct arswitch_softc *sc) 140235288Sadrian{ 141235288Sadrian 142235288Sadrian sc->hal.arswitch_hw_setup = ar8316_hw_setup; 143235288Sadrian sc->hal.arswitch_hw_global_setup = ar8316_hw_global_setup; 144235288Sadrian} 145