diff options
Diffstat (limited to 'sys/dev/etherswitch/arswitch/arswitch_8316.c')
| -rw-r--r-- | sys/dev/etherswitch/arswitch/arswitch_8316.c | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/sys/dev/etherswitch/arswitch/arswitch_8316.c b/sys/dev/etherswitch/arswitch/arswitch_8316.c new file mode 100644 index 0000000..ebf276b --- /dev/null +++ b/sys/dev/etherswitch/arswitch/arswitch_8316.c @@ -0,0 +1,144 @@ +/*- + * Copyright (c) 2011-2012 Stefan Bethke. + * Copyright (c) 2012 Adrian Chadd. + * 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. + * + * $FreeBSD$ + */ + +#include <sys/param.h> +#include <sys/bus.h> +#include <sys/errno.h> +#include <sys/kernel.h> +#include <sys/module.h> +#include <sys/socket.h> +#include <sys/sockio.h> +#include <sys/sysctl.h> +#include <sys/systm.h> + +#include <net/if.h> +#include <net/if_arp.h> +#include <net/ethernet.h> +#include <net/if_dl.h> +#include <net/if_media.h> +#include <net/if_types.h> + +#include <machine/bus.h> +#include <dev/iicbus/iic.h> +#include <dev/iicbus/iiconf.h> +#include <dev/iicbus/iicbus.h> +#include <dev/mii/mii.h> +#include <dev/mii/miivar.h> +#include <dev/etherswitch/mdio.h> + +#include <dev/etherswitch/etherswitch.h> + +#include <dev/etherswitch/arswitch/arswitchreg.h> +#include <dev/etherswitch/arswitch/arswitchvar.h> +#include <dev/etherswitch/arswitch/arswitch_reg.h> +#include <dev/etherswitch/arswitch/arswitch_8316.h> + +#include "mdio_if.h" +#include "miibus_if.h" +#include "etherswitch_if.h" + +/* + * AR8316 specific functions + */ +static int +ar8316_hw_setup(struct arswitch_softc *sc) +{ + + /* + * Configure the switch mode based on whether: + * + * + The switch port is GMII/RGMII; + * + Port 4 is either connected to the CPU or to the internal switch. + */ + if (sc->is_rgmii && sc->phy4cpu) { + arswitch_writereg(sc->sc_dev, AR8X16_REG_MODE, + AR8X16_MODE_RGMII_PORT4_ISO); + device_printf(sc->sc_dev, + "%s: MAC port == RGMII, port 4 = dedicated PHY\n", + __func__); + } else if (sc->is_rgmii) { + arswitch_writereg(sc->sc_dev, AR8X16_REG_MODE, + AR8X16_MODE_RGMII_PORT4_SWITCH); + device_printf(sc->sc_dev, + "%s: MAC port == RGMII, port 4 = switch port\n", + __func__); + } else if (sc->is_gmii) { + arswitch_writereg(sc->sc_dev, AR8X16_REG_MODE, + AR8X16_MODE_GMII); + device_printf(sc->sc_dev, "%s: MAC port == GMII\n", __func__); + } else { + device_printf(sc->sc_dev, "%s: unknown switch PHY config\n", + __func__); + return (ENXIO); + } + + DELAY(1000); /* 1ms wait for things to settle */ + + /* + * If port 4 is RGMII, force workaround + */ + if (sc->is_rgmii && sc->phy4cpu) { + device_printf(sc->sc_dev, + "%s: port 4 RGMII workaround\n", + __func__); + + /* work around for phy4 rgmii mode */ + arswitch_writedbg(sc->sc_dev, 4, 0x12, 0x480c); + /* rx delay */ + arswitch_writedbg(sc->sc_dev, 4, 0x0, 0x824e); + /* tx delay */ + arswitch_writedbg(sc->sc_dev, 4, 0x5, 0x3d47); + DELAY(1000); /* 1ms, again to let things settle */ + } + + return (0); +} + +/* + * Initialise other global values, for the AR8316. + */ +static int +ar8316_hw_global_setup(struct arswitch_softc *sc) +{ + + arswitch_writereg(sc->sc_dev, 0x38, 0xc000050e); + arswitch_writereg(sc->sc_dev, AR8X16_REG_FLOOD_MASK, 0x003f003f); + arswitch_modifyreg(sc->sc_dev, AR8X16_REG_GLOBAL_CTRL, + AR8316_GLOBAL_CTRL_MTU_MASK, 9018 + 8 + 2); + + return (0); +} + +void +ar8316_attach(struct arswitch_softc *sc) +{ + + sc->hal.arswitch_hw_setup = ar8316_hw_setup; + sc->hal.arswitch_hw_global_setup = ar8316_hw_global_setup; +} |
