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      1 /*	$NetBSD: autoconf.c,v 1.1 2021/04/02 07:00:33 rin Exp $	*/
      2 
      3 /*
      4  * Taken from src/sys/arch/evbppc/walnut/autoconf.c:
      5  *	NetBSD: autoconf.c,v 1.26 2021/03/30 05:14:00 rin Exp
      6  */
      7 
      8 /*
      9  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
     10  * Copyright (C) 1995, 1996 TooLs GmbH.
     11  * All rights reserved.
     12  *
     13  * Redistribution and use in source and binary forms, with or without
     14  * modification, are permitted provided that the following conditions
     15  * are met:
     16  * 1. Redistributions of source code must retain the above copyright
     17  *    notice, this list of conditions and the following disclaimer.
     18  * 2. Redistributions in binary form must reproduce the above copyright
     19  *    notice, this list of conditions and the following disclaimer in the
     20  *    documentation and/or other materials provided with the distribution.
     21  * 3. All advertising materials mentioning features or use of this software
     22  *    must display the following acknowledgement:
     23  *	This product includes software developed by TooLs GmbH.
     24  * 4. The name of TooLs GmbH may not be used to endorse or promote products
     25  *    derived from this software without specific prior written permission.
     26  *
     27  * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
     28  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     29  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     30  * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     31  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     32  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     33  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     34  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     35  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     36  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/cdefs.h>
     40 __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.1 2021/04/02 07:00:33 rin Exp $");
     41 
     42 #include <sys/param.h>
     43 #include <sys/device.h>
     44 #include <sys/systm.h>
     45 
     46 #include <machine/dht.h>
     47 
     48 #include <powerpc/spr.h>
     49 #include <powerpc/ibm4xx/spr.h>
     50 
     51 #include <powerpc/ibm4xx/cpu.h>
     52 #include <powerpc/ibm4xx/dcr4xx.h>
     53 #include <powerpc/ibm4xx/dev/plbvar.h>
     54 
     55 /*
     56  * Determine device configuration for a machine.
     57  */
     58 void
     59 cpu_configure(void)
     60 {
     61 
     62 	intr_init();
     63 	calc_delayconst();
     64 
     65 	/* Make sure that timers run at CPU frequency */
     66 	mtdcr(DCR_CPC0_CR1, mfdcr(DCR_CPC0_CR1) & ~CPC0_CR1_CETE);
     67 
     68 	if (config_rootfound("plb", NULL) == NULL)
     69 		panic("%s: plb not configured", __func__);
     70 
     71 	genppc_cpu_configure();
     72 }
     73 
     74 void
     75 device_register(device_t dev, void *aux)
     76 {
     77 
     78 	ibm4xx_device_register(dev, aux, DHT_COM_FREQ);
     79 }
     80