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209 lines
5.9 KiB
C
209 lines
5.9 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2011-2012 Stefan Bethke.
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* Copyright (c) 2013 Adrian Chadd <adrian@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/errno.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <sys/sysctl.h>
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#include <sys/systm.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <net/ethernet.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <net/if_types.h>
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#include <machine/bus.h>
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#include <dev/iicbus/iic.h>
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#include <dev/iicbus/iiconf.h>
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#include <dev/iicbus/iicbus.h>
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#include <dev/mii/mii.h>
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#include <dev/mii/miivar.h>
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#include <dev/mdio/mdio.h>
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#include <dev/etherswitch/etherswitch.h>
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#include <dev/etherswitch/arswitch/arswitchreg.h>
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#include <dev/etherswitch/arswitch/arswitchvar.h>
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#include <dev/etherswitch/arswitch/arswitch_reg.h>
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#include <dev/etherswitch/arswitch/arswitch_phy.h> /* XXX for probe */
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#include <dev/etherswitch/arswitch/arswitch_9340.h>
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#include "mdio_if.h"
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#include "miibus_if.h"
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#include "etherswitch_if.h"
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/*
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* AR9340 specific functions
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*/
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static int
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ar9340_hw_setup(struct arswitch_softc *sc)
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{
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return (0);
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}
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/*
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* Initialise other global values for the AR9340.
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*/
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static int
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ar9340_hw_global_setup(struct arswitch_softc *sc)
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{
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ARSWITCH_LOCK(sc);
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/* Enable CPU port; disable mirror port */
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arswitch_writereg(sc->sc_dev, AR8X16_REG_CPU_PORT,
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AR8X16_CPU_PORT_EN | AR8X16_CPU_MIRROR_DIS);
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/* Setup TAG priority mapping */
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arswitch_writereg(sc->sc_dev, AR8X16_REG_TAG_PRIO, 0xfa50);
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/* Enable aging, MAC replacing */
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arswitch_writereg(sc->sc_dev, AR934X_REG_AT_CTRL,
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0x2b /* 5 min age time */ |
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AR934X_AT_CTRL_AGE_EN |
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AR934X_AT_CTRL_LEARN_CHANGE);
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/* Enable ARP frame acknowledge */
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arswitch_modifyreg(sc->sc_dev, AR934X_REG_QM_CTRL,
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AR934X_QM_CTRL_ARP_EN, AR934X_QM_CTRL_ARP_EN);
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/* Enable Broadcast frames transmitted to the CPU */
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arswitch_modifyreg(sc->sc_dev, AR934X_REG_FLOOD_MASK,
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AR934X_FLOOD_MASK_BC_DP(0),
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AR934X_FLOOD_MASK_BC_DP(0));
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arswitch_modifyreg(sc->sc_dev, AR934X_REG_FLOOD_MASK,
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AR934X_FLOOD_MASK_MC_DP(0),
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AR934X_FLOOD_MASK_MC_DP(0));
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/* Enable MIB counters */
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arswitch_modifyreg(sc->sc_dev, AR8X16_REG_MIB_FUNC0,
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AR934X_MIB_ENABLE, AR934X_MIB_ENABLE);
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/* Setup MTU */
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arswitch_modifyreg(sc->sc_dev, AR8X16_REG_GLOBAL_CTRL,
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AR7240_GLOBAL_CTRL_MTU_MASK,
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SM(1536, AR7240_GLOBAL_CTRL_MTU_MASK));
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/* Service Tag */
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arswitch_modifyreg(sc->sc_dev, AR8X16_REG_SERVICE_TAG,
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AR8X16_SERVICE_TAG_MASK, 0);
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/* Settle time */
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DELAY(1000);
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/*
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* Check PHY mode bits.
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*
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* This dictates whether the connected port is to be wired
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* up via GMII or MII. I'm not sure why - this is an internal
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* wiring issue.
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*/
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if (sc->is_gmii) {
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device_printf(sc->sc_dev, "%s: GMII\n", __func__);
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arswitch_modifyreg(sc->sc_dev, AR934X_REG_OPER_MODE0,
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AR934X_OPER_MODE0_MAC_GMII_EN,
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AR934X_OPER_MODE0_MAC_GMII_EN);
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} else if (sc->is_mii) {
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device_printf(sc->sc_dev, "%s: MII\n", __func__);
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arswitch_modifyreg(sc->sc_dev, AR934X_REG_OPER_MODE0,
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AR934X_OPER_MODE0_PHY_MII_EN,
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AR934X_OPER_MODE0_PHY_MII_EN);
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} else {
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device_printf(sc->sc_dev, "%s: need is_gmii or is_mii set\n",
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__func__);
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ARSWITCH_UNLOCK(sc);
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return (ENXIO);
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}
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/*
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* Whether to connect PHY 4 via MII (ie a switch port) or
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* treat it as a CPU port.
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*/
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if (sc->phy4cpu) {
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device_printf(sc->sc_dev, "%s: PHY4 - CPU\n", __func__);
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arswitch_modifyreg(sc->sc_dev, AR934X_REG_OPER_MODE1,
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AR934X_REG_OPER_MODE1_PHY4_MII_EN,
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AR934X_REG_OPER_MODE1_PHY4_MII_EN);
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sc->info.es_nports = 5;
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} else {
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device_printf(sc->sc_dev, "%s: PHY4 - Local\n", __func__);
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sc->info.es_nports = 6;
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}
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/* Settle time */
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DELAY(1000);
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ARSWITCH_UNLOCK(sc);
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return (0);
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}
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/*
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* The AR9340 switch probes (almost) the same as the AR7240 on-chip switch.
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*
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* However, the support is slightly different.
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*
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* So instead of checking the PHY revision or mask register contents,
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* we simply fall back to a hint check.
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*/
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int
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ar9340_probe(device_t dev)
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{
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int is_9340 = 0;
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if (resource_int_value(device_get_name(dev), device_get_unit(dev),
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"is_9340", &is_9340) != 0)
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return (ENXIO);
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if (is_9340 == 0)
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return (ENXIO);
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return (0);
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}
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void
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ar9340_attach(struct arswitch_softc *sc)
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{
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sc->hal.arswitch_hw_setup = ar9340_hw_setup;
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sc->hal.arswitch_hw_global_setup = ar9340_hw_global_setup;
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/* Set the switch vlan capabilities. */
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sc->info.es_vlan_caps = ETHERSWITCH_VLAN_DOT1Q |
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ETHERSWITCH_VLAN_PORT | ETHERSWITCH_VLAN_DOUBLE_TAG;
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sc->info.es_nvlangroups = AR8X16_MAX_VLANS;
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}
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