add35ed5b8
to check the status property in their probe routines. Simplebus used to only instantiate its children whose status="okay" but that was improper behavior, fixed in r261352. Now that it doesn't check anymore and probes all its children; the children all have to do the check because really only the children know how to properly interpret their status property strings. Right now all existing drivers only understand "okay" versus something- that's-not-okay, so they all use the new ofw_bus_status_okay() helper.
221 lines
6.6 KiB
C
221 lines
6.6 KiB
C
/*-
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* Copyright (c) 2013 Bjoern A. Zeeb
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* All rights reserved.
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*
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* This software was developed by SRI International and the University of
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* Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-11-C-0249)
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* ("MRC2"), as part of the DARPA MRC research programme.
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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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/rman.h>
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#include <sys/socket.h>
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#include <sys/systm.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <net/ethernet.h>
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#include <net/if.h>
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#include <net/if_media.h>
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#include <net/if_var.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/fdt/fdt_common.h>
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#include <dev/ofw/openfirm.h>
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#include <dev/ofw/ofw_bus.h>
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#include <dev/ofw/ofw_bus_subr.h>
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#include <dev/altera/atse/if_atsereg.h>
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/* "device miibus" required. See GENERIC if you get errors here. */
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#include "miibus_if.h"
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static int
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atse_probe_fdt(device_t dev)
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{
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if (!ofw_bus_status_okay(dev))
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return (ENXIO);
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if (ofw_bus_is_compatible(dev, "altera,atse")) {
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device_set_desc(dev, "Altera Triple-Speed Ethernet MegaCore");
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return (BUS_PROBE_DEFAULT);
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}
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return (ENXIO);
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}
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static int
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atse_attach_fdt(device_t dev)
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{
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struct atse_softc *sc;
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int error;
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sc = device_get_softc(dev);
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sc->atse_dev = dev;
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sc->atse_unit = device_get_unit(dev);
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/*
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* FDT has the list of our resources. Given we are using multiple
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* memory regions and possibly multiple interrupts, we need to attach
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* them in the order specified in .dts:
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* MAC, RX and RXC FIFO, TX and TXC FIFO; RX INTR, TX INTR.
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*/
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/* MAC: Avalon-MM, atse management register region. */
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sc->atse_mem_rid = 0;
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sc->atse_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
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&sc->atse_mem_rid, RF_ACTIVE);
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if (sc->atse_mem_res == NULL) {
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device_printf(dev, "failed to map memory for ctrl region\n");
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error = ENXIO;
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goto err;
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}
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if (bootverbose)
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device_printf(sc->atse_dev, "MAC ctrl region at mem %p-%p\n",
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(void *)rman_get_start(sc->atse_mem_res),
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(void *)(rman_get_start(sc->atse_mem_res) +
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rman_get_size(sc->atse_mem_res)));
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/*
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* RX and RXC FIFO memory regions.
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* 0x00: 2 * 32bit FIFO data,
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* 0x20: 8 * 32bit FIFO ctrl, Avalon-ST Sink to Avalon-MM R-Slave.
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*/
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sc->atse_rx_mem_rid = 1;
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sc->atse_rx_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
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&sc->atse_rx_mem_rid, RF_ACTIVE);
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if (sc->atse_rx_mem_res == NULL) {
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device_printf(dev, "failed to map memory for RX FIFO\n");
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error = ENXIO;
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goto err;
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}
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if (bootverbose)
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device_printf(sc->atse_dev, "RX FIFO at mem %p-%p\n",
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(void *)rman_get_start(sc->atse_rx_mem_res),
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(void *)(rman_get_start(sc->atse_rx_mem_res) +
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rman_get_size(sc->atse_rx_mem_res)));
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sc->atse_rxc_mem_rid = 2;
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sc->atse_rxc_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
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&sc->atse_rxc_mem_rid, RF_ACTIVE);
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if (sc->atse_rxc_mem_res == NULL) {
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device_printf(dev, "failed to map memory for RXC FIFO\n");
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error = ENXIO;
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goto err;
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}
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if (bootverbose)
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device_printf(sc->atse_dev, "RXC FIFO at mem %p-%p\n",
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(void *)rman_get_start(sc->atse_rxc_mem_res),
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(void *)(rman_get_start(sc->atse_rxc_mem_res) +
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rman_get_size(sc->atse_rxc_mem_res)));
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/*
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* TX and TXC FIFO memory regions.
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* 0x00: 2 * 32bit FIFO data,
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* 0x20: 8 * 32bit FIFO ctrl, Avalon-MM W-Slave to Avalon-ST Source.
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*/
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sc->atse_tx_mem_rid = 3;
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sc->atse_tx_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
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&sc->atse_tx_mem_rid, RF_ACTIVE);
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if (sc->atse_tx_mem_res == NULL) {
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device_printf(dev, "failed to map memory for TX FIFO\n");
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error = ENXIO;
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goto err;
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}
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if (bootverbose)
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device_printf(sc->atse_dev, "TX FIFO at mem %p-%p\n",
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(void *)rman_get_start(sc->atse_tx_mem_res),
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(void *)(rman_get_start(sc->atse_tx_mem_res) +
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rman_get_size(sc->atse_tx_mem_res)));
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sc->atse_txc_mem_rid = 4;
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sc->atse_txc_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
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&sc->atse_txc_mem_rid, RF_ACTIVE);
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if (sc->atse_txc_mem_res == NULL) {
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device_printf(dev, "failed to map memory for TXC FIFO\n");
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error = ENXIO;
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goto err;
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}
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if (bootverbose)
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device_printf(sc->atse_dev, "TXC FIFO at mem %p-%p\n",
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(void *)rman_get_start(sc->atse_txc_mem_res),
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(void *)(rman_get_start(sc->atse_txc_mem_res) +
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rman_get_size(sc->atse_txc_mem_res)));
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/* (Optional) RX and TX IRQ. */
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sc->atse_rx_irq_rid = 0;
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sc->atse_rx_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
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&sc->atse_rx_irq_rid, RF_ACTIVE | RF_SHAREABLE);
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sc->atse_tx_irq_rid = 1;
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sc->atse_tx_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
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&sc->atse_tx_irq_rid, RF_ACTIVE | RF_SHAREABLE);
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error = atse_attach(dev);
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if (error)
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goto err;
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return (0);
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err:
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/* Cleanup. */
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atse_detach_resources(dev);
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return (error);
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}
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static device_method_t atse_methods_fdt[] = {
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/* Device interface */
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DEVMETHOD(device_probe, atse_probe_fdt),
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DEVMETHOD(device_attach, atse_attach_fdt),
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DEVMETHOD(device_detach, atse_detach_dev),
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/* MII interface */
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DEVMETHOD(miibus_readreg, atse_miibus_readreg),
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DEVMETHOD(miibus_writereg, atse_miibus_writereg),
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DEVMETHOD(miibus_statchg, atse_miibus_statchg),
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DEVMETHOD_END
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};
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static driver_t atse_driver_fdt = {
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"atse",
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atse_methods_fdt,
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sizeof(struct atse_softc)
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};
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DRIVER_MODULE(atse, simplebus, atse_driver_fdt, atse_devclass, 0, 0);
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DRIVER_MODULE(miibus, atse, miibus_driver, miibus_devclass, 0, 0);
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/* end */
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