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