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autoconf.c revision 1.2.2.2 
      1 /*	$NetBSD: autoconf.c,v 1.2.2.2 2004/09/18 14:34:02 skrll Exp $	*/
      2 
      3 /*
      4  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
      5  * Copyright (C) 1995, 1996 TooLs GmbH.
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. All advertising materials mentioning features or use of this software
     17  *    must display the following acknowledgement:
     18  *	This product includes software developed by TooLs GmbH.
     19  * 4. The name of TooLs GmbH may not be used to endorse or promote products
     20  *    derived from this software without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     26  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     27  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     28  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     29  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     30  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     31  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 #include <sys/cdefs.h>
     35 __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.2.2.2 2004/09/18 14:34:02 skrll Exp $");
     36 
     37 #include <sys/param.h>
     38 #include <sys/conf.h>
     39 #include <sys/device.h>
     40 #include <sys/systm.h>
     41 
     42 #include <dev/ic/comreg.h>	/* For COM_FREQ */
     43 
     44 #include <powerpc/ibm4xx/dcr405gp.h>
     45 #include <powerpc/ibm4xx/dev/plbvar.h>
     46 
     47 struct device *booted_device;
     48 int booted_partition;
     49 
     50 /*
     51  * List of port-specific devices to attach to the processor local bus.
     52  */
     53 static const struct plb_dev local_plb_devs [] = {
     54 	{ "pbus", },
     55 	{ NULL }
     56 };
     57 
     58 /*
     59  * Determine device configuration for a machine.
     60  */
     61 void
     62 cpu_configure(void)
     63 {
     64 
     65 	intr_init();
     66 	calc_delayconst();
     67 
     68 	/* Make sure that timers run at CPU frequency */
     69 	mtdcr(DCR_CPC0_CR1, mfdcr(DCR_CPC0_CR1) & ~CPC0_CR1_CETE);
     70 
     71 	if (config_rootfound("plb", &local_plb_devs) == NULL)
     72 		panic("configure: plb not configured");
     73 
     74 	printf("biomask %x netmask %x ttymask %x\n", (u_short)imask[IPL_BIO],
     75 	    (u_short)imask[IPL_NET], (u_short)imask[IPL_TTY]);
     76 
     77 	(void)spl0();
     78 
     79 	/*
     80 	 * Now allow hardware interrupts.
     81 	 */
     82 	asm volatile ("wrteei 1");
     83 }
     84 
     85 /*
     86  * Setup root device.
     87  * Configure swap area.
     88  */
     89 void
     90 cpu_rootconf(void)
     91 {
     92 
     93 	setroot(booted_device, booted_partition);
     94 }
     95 
     96 void
     97 device_register(struct device *dev, void *aux)
     98 {
     99 	struct device *parent = dev->dv_parent;
    100 
    101 	if (strcmp(dev->dv_cfdata->cf_name, "com") == 0 &&
    102 	    strcmp(parent->dv_cfdata->cf_name, "opb") == 0) {
    103 		/* Set the frequency of the on-chip UART. */
    104 		int freq = COM_FREQ * 6;
    105 
    106 		if (prop_set(dev_propdb, dev, "frequency",
    107 			     &freq, sizeof(freq), PROP_INT, 0) != 0)
    108 			printf("WARNING: unable to set frequency "
    109 			    "property for %s\n", dev->dv_xname);
    110 		return;
    111 	}
    112 
    113 	if (strcmp(dev->dv_cfdata->cf_name, "emac") == 0 &&
    114 	    strcmp(parent->dv_cfdata->cf_name, "opb") == 0) {
    115 		/* Set the mac-addr of the on-chip Ethernet. */
    116 		/* XXX 405GP only has one; what about CPUs with two? */
    117 		if (prop_set(dev_propdb, dev, "mac-addr",
    118 			     &board_data.mac_address_local,
    119 			     sizeof(board_data.mac_address_local),
    120 			     PROP_CONST, 0) != 0)
    121 			printf("WARNING: unable to set mac-addr "
    122 			    "property for %s\n", dev->dv_xname);
    123 		return;
    124 	}
    125 }
    126