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      1 /* $NetBSD: autoconf.c,v 1.21 2025/10/03 14:05:12 thorpej Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.21 2025/10/03 14:05:12 thorpej Exp $");
     34 
     35 #include <sys/param.h>
     36 #include <sys/systm.h>
     37 #include <sys/conf.h>
     38 #include <sys/device.h>
     39 #include <sys/bus.h>
     40 
     41 #include <sys/socket.h>		/* these three just to get ETHER_ADDR_LEN(!) */
     42 #include <net/if.h>
     43 #include <net/if_ether.h>
     44 
     45 #include <machine/yamon.h>
     46 
     47 #include <mips/alchemy/include/aureg.h>
     48 #include <mips/alchemy/include/auvar.h>
     49 #include <mips/alchemy/include/aubusvar.h>
     50 
     51 #include <dev/ata/atavar.h>
     52 
     53 /*
     54  * Configure all devices on system
     55  */
     56 void
     57 cpu_configure(void)
     58 {
     59 
     60 	intr_init();
     61 
     62 	/* Kick off autoconfiguration. */
     63 	(void)splhigh();
     64 	if (config_rootfound("mainbus", NULL) == NULL)
     65 		panic("no mainbus found");
     66 
     67 	/*
     68 	 * Hardware interrupts will be enabled in
     69 	 * sys/arch/mips/mips/mips3_clockintr.c:mips3_initclocks()
     70 	 * to avoid hardclock(9) by CPU INT5 before softclockintr is
     71 	 * initialized in initclocks().
     72 	 */
     73 }
     74 
     75 void
     76 cpu_rootconf(void)
     77 {
     78 
     79 	rootconf();
     80 }
     81 
     82 void
     83 device_register(device_t dev, void *aux)
     84 {
     85 	/*
     86 	 * We don't ever know the boot device.  But that's because the
     87 	 * firmware only loads from the network.
     88 	 */
     89 
     90 	/* Fetch the MAC addresses from YAMON. */
     91 	if (device_is_a(dev, "aumac")) {
     92 		struct aubus_attach_args *aa = aux;
     93 		const char *cp;
     94 		char *cp0;
     95 		int i;
     96 		uint8_t ethaddr[ETHER_ADDR_LEN];
     97 
     98 		/* Get the Ethernet address of the first on-board Ethernet. */
     99 #if defined(ETHADDR)
    100 		cp = ETHADDR;
    101 #else
    102 		cp = yamon_getenv("ethaddr");
    103 #endif
    104 		if (cp != NULL) {
    105 			for (i = 0; i < ETHER_ADDR_LEN; i++) {
    106 				ethaddr[i] = strtoul(cp, &cp0, 16);
    107 				cp = cp0 + 1;
    108 			}
    109 			if (aa->aa_addr != MAC0_BASE &&
    110 			    aa->aa_addr != AU1500_MAC0_BASE) {
    111 				/* XXX
    112 				 * The PROM has a variable for the MAC address
    113 				 * of the first interface.  For now, just add
    114 				 * 0x10 to the second last octet(!) for the
    115 				 * second interface (Linux does the same).
    116 				 */
    117 				ethaddr[4] += 0x10;
    118 			}
    119 			if (! device_setprop_data(dev, "mac-address",
    120 						  ethaddr,
    121 						  sizeof(ethaddr))) {
    122 				printf("WARNING: unable to set mac-addr "
    123 				    "property for %s\n", device_xname(dev));
    124 			}
    125 		}
    126 	}
    127 	if (device_is_a(dev, "atabus")) {
    128 		device_t p1 = device_parent(dev);
    129 		device_t p2 = device_parent(p1);
    130 		device_t p3 = device_parent(p2);
    131 
    132 		if (device_is_a(p1, "wdc") &&
    133 		    device_is_a(p2, "pcmcia") &&
    134 		    device_is_a(p3, "aupcmcia")) {
    135 			struct ata_channel *chp = aux;
    136 
    137 			/* 32-bit transfers are not supported. */
    138 			chp->ch_atac->atac_cap &= ~ATAC_CAP_DATA32;
    139 		}
    140 	}
    141 }
    142