1 /* $NetBSD: autoconf.c,v 1.2 2003/03/11 10:40:17 hannken 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/param.h> 35 #include <sys/conf.h> 36 #include <sys/device.h> 37 #include <sys/systm.h> 38 39 #include <powerpc/ibm4xx/dcr405gp.h> 40 #include <powerpc/ibm4xx/dev/plbvar.h> 41 42 struct device *booted_device; 43 int booted_partition; 44 45 /* 46 * List of port-specific devices to attach to the processor local bus. 47 */ 48 static const struct plb_dev local_plb_devs [] = { 49 { "pbus", }, 50 { NULL } 51 }; 52 53 /* 54 * Determine device configuration for a machine. 55 */ 56 void 57 cpu_configure(void) 58 { 59 60 intr_init(); 61 calc_delayconst(); 62 63 /* Make sure that timers run at CPU frequency */ 64 mtdcr(DCR_CPC0_CR1, mfdcr(DCR_CPC0_CR1) & ~CPC0_CR1_CETE); 65 66 if (config_rootfound("plb", &local_plb_devs) == NULL) 67 panic("configure: plb not configured"); 68 69 printf("biomask %x netmask %x ttymask %x\n", (u_short)imask[IPL_BIO], 70 (u_short)imask[IPL_NET], (u_short)imask[IPL_TTY]); 71 72 (void)spl0(); 73 74 /* 75 * Now allow hardware interrupts. 76 */ 77 asm volatile ("wrteei 1"); 78 } 79 80 /* 81 * Setup root device. 82 * Configure swap area. 83 */ 84 void 85 cpu_rootconf(void) 86 { 87 88 setroot(booted_device, booted_partition); 89 } 90