Home | History | Annotate | Line # | Download | only in ppcboot 
      1 /* $NetBSD: ppcstart.c,v 1.5 2008/04/28 20:23:13 martin Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Ignatios Souvatzis.
      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 /*
     33  * Startit for Phase5 PPC boards.
     34  */
     35 
     36 #include <sys/types.h>
     37 #include "libstubs.h"
     38 
     39 #include "kickstart68.c"
     40 
     41 void
     42 startit(kp, ksize, entry, fmem, fmemsz, cmemsz,
     43 	    boothowto, esym, cpuid, eclock, amiga_flags, I_flag,
     44 	    bootpartoff, history)
     45 
     46 	u_long kp, ksize, entry, fmem, fmemsz, cmemsz,
     47 		boothowto, esym, cpuid, eclock, amiga_flags, I_flag,
     48 		bootpartoff, history;
     49 {
     50 	int i;
     51 
     52 #define ONESEC
     53 /* #define ONESEC for (i=0; i<1000000; i++) */
     54 
     55 	ONESEC *(volatile u_int16_t *)0xdff180 = 0x0f0;
     56 	*(volatile u_int8_t *)0xf60000 = 0x10;
     57 	ONESEC *(volatile u_int16_t *)0xdff180 = 0xf80;
     58 
     59 	memcpy((void *)0xfff00100, kickstart, kicksize);
     60 	*(volatile u_int32_t *)0xfff000f4 = fmem;
     61 	*(volatile u_int32_t *)0xfff000f8 = kp;
     62 	*(volatile u_int32_t *)0xfff000fc = ksize;
     63 	ONESEC *(volatile u_int16_t *)0xdff180 = 0xf00;
     64 	*(volatile u_int8_t *)0xf60000 = 0x90;
     65 	*(volatile u_int8_t *)0xf60000 = 0x08;
     66 	/* NOTREACHED */
     67 	while (1) {
     68 		*(volatile u_int16_t *)0xdff180 = 0x0f0;
     69 		*(volatile u_int16_t *)0xdff180 = 0x00f;
     70 	}
     71 }
     72