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118 lines
3.5 KiB
C
118 lines
3.5 KiB
C
/* $NetBSD: rgmii.c,v 1.1 2010/03/18 13:47:04 kiyohara Exp $ */
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/*
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* Copyright (c) 2010 KIYOHARA Takashi
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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 ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: rgmii.c,v 1.1 2010/03/18 13:47:04 kiyohara Exp $");
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/device.h>
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#include <net/if.h>
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#include <net/if_media.h>
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#include <powerpc/ibm4xx/dev/rgmiireg.h>
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#include <powerpc/ibm4xx/dev/rmiivar.h>
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#include <powerpc/ibm4xx/dev/opbvar.h>
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static void rgmii_enable(device_t, int);
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static void rgmii_disable(device_t, int);
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static void rgmii_speed(device_t, int, int);
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void
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rgmii_attach(device_t self, int instance,
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void (**enable)(device_t, int),
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void (**disable)(device_t, int),
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void (**speed)(device_t, int, int))
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{
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struct opb_softc *sc = device_private(self);
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uint32_t ssr;
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instance %= 2;
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rgmii_disable(self, instance);
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ssr = bus_space_read_4(sc->sc_iot, sc->sc_rgmiih, RGMII0_SSR);
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ssr &= ~SSR_SP(instance, SSR_SP_MASK);
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bus_space_write_4(sc->sc_iot, sc->sc_rgmiih, RGMII0_SSR, ssr);
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*enable = rgmii_enable;
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*disable = rgmii_disable;
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*speed = rgmii_speed;
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}
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static void
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rgmii_enable(device_t self, int instance)
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{
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struct opb_softc *sc = device_private(self);
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uint32_t fer;
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instance %= 2;
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fer = bus_space_read_4(sc->sc_iot, sc->sc_rgmiih, RGMII0_FER);
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fer &= ~FER_MDIOEN_MASK;
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fer |= FER_MDIOEN(instance);
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bus_space_write_4(sc->sc_iot, sc->sc_rgmiih, RGMII0_FER, fer);
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}
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static void
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rgmii_disable(device_t self, int instance)
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{
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struct opb_softc *sc = device_private(self);
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uint32_t fer;
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instance %= 2;
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fer = bus_space_read_4(sc->sc_iot, sc->sc_rgmiih, RGMII0_FER);
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fer &= ~FER_MDIOEN_MASK;
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bus_space_write_4(sc->sc_iot, sc->sc_rgmiih, RGMII0_FER, fer);
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}
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static void
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rgmii_speed(device_t self, int instance, int speed)
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{
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struct opb_softc *sc = device_private(self);
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uint32_t ssr;
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instance %= 2;
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ssr = bus_space_read_4(sc->sc_iot, sc->sc_rgmiih, RGMII0_SSR);
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ssr &= ~SSR_SP(instance, SSR_SP_MASK);
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switch (speed) {
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case IFM_1000_T:
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ssr |= SSR_SP(instance, SSR_SP_1000MBPS);
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break;
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case IFM_100_TX:
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ssr |= SSR_SP(instance, SSR_SP_100MBPS);
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break;
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case IFM_10_T:
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ssr |= SSR_SP(instance, SSR_SP_10MBPS);
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break;
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}
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bus_space_write_4(sc->sc_iot, sc->sc_rgmiih, RGMII0_SSR, ssr);
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}
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