root/sys/arch/algor/algor/autoconf.c
/*      $NetBSD: autoconf.c,v 1.23 2025/10/03 14:05:11 thorpej Exp $    */

/*-
 * Copyright (c) 2001 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Jason R. Thorpe.
 *
 * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.23 2025/10/03 14:05:11 thorpej Exp $");

#include "opt_algor_p4032.h"
#include "opt_algor_p5064.h"
#include "opt_algor_p6032.h"

#include <sys/param.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/intr.h>
#include <sys/reboot.h>
#include <sys/systm.h>

#include <dev/pci/pcivar.h>

#include <net/if.h>
#include <net/if_ether.h>

#include <algor/autoconf.h>

#ifdef ALGOR_P4032
#include <algor/algor/algor_p4032var.h>
#endif

void
cpu_configure(void)
{

        intr_init();

        (void) splhigh();
        if (config_rootfound("mainbus", NULL) == 0)
                panic("no mainbus found");

        /*
         * Hardware interrupts will be enabled in
         * sys/arch/mips/mips/mips3_clockintr.c:mips3_initclocks()
         * to avoid hardclock(9) by CPU INT5 before softclockintr is
         * initialized in initclocks().
         */
}

void
cpu_rootconf(void)
{

        rootconf();
}

#if defined(ALGOR_P4032)
#define BUILTIN_ETHERNET_P(pa)                                          \
        ((pa)->pa_bus == 0 && (pa)->pa_device == 5 && (pa)->pa_function == 0)
#elif defined(ALGOR_P5064)
#define BUILTIN_ETHERNET_P(pa)                                          \
        ((pa)->pa_bus == 0 && (pa)->pa_device == 0 && (pa)->pa_function == 0)
#elif defined(ALGOR_P6032)
#define BUILTIN_ETHERNET_P(pa)                                          \
        ((pa)->pa_bus == 0 && (pa)->pa_device == 16 && (pa)->pa_function == 0)
#else
#define BUILTIN_ETHERNET_P(pa)  0
#endif

void
device_register(device_t dev, void *aux)
{
        device_t pdev;

        /*
         * We don't ever know the boot device.  But that's because the
         * firmware only loads from the network or the parallel port.
         */

        /*
         * Fetch the MAC address for the built-in Ethernet (we grab it
         * from PMON earlier in the boot process).
         */
        if ((pdev = device_parent(dev)) != NULL && device_is_a(pdev, "pci")) {
                struct pci_attach_args *pa = aux;

                if (BUILTIN_ETHERNET_P(pa)) {
                        if (! device_setprop_data(dev, "mac-address",
                                                  algor_ethaddr,
                                                  ETHER_ADDR_LEN)) {
                                printf("WARNING: unable to set mac-addr "
                                    "property for %s\n", device_xname(dev));
                        }
#if defined(ALGOR_P4032)
                        /*
                         * XXX This is gross, disgusting, and otherwise vile,
                         * XXX but V962 rev. < B2 have broken DMA FIFOs.  Give
                         * XXX the on-board Ethernet a different DMA window
                         * XXX that has pre-fetching disabled so that Ethernet
                         * XXX performance doesn't completely suck.
                         */
                        pa->pa_dmat = &p4032_configuration.ac_pci_pf_dmat;
                        pa->pa_dmat64 = NULL;
#endif /* ALGOR_P4032 */
                }
        }
}