117 lines
3.2 KiB
C
117 lines
3.2 KiB
C
/* $NetBSD: machdep.c,v 1.7 2005/12/24 20:07:24 perry Exp $ */
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/*
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* Copyright (c) 1994 Philip L. Budne.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Philip L. Budne.
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* 4. The name of Philip L. Budne may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* pc532 standalone machdep code
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* Phil Budne, May 10, 1994
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*
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*/
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#include <sys/types.h>
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#include <machine/cpufunc.h>
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#include <lib/libsa/stand.h>
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#include <pc532/stand/common/samachdep.h>
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#include <pc532/stand/common/so.h>
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/* XXX TEMP; would like to use code more like hp300 scsi.c */
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int
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scsialive(int ctlr)
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{
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return 1; /* controller always alive! */
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}
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int
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scsi_tt_read(int ctlr, int slave, void *buf, u_int len, daddr_t blk, u_int nblk)
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{
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if (sc_rdwt(DISK_READ, blk, buf, nblk, 1 << slave, 0) == 0)
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return 0;
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return EIO;
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}
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int
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scsi_tt_write(int ctlr, int slave, void *buf, u_int len, daddr_t blk,
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u_int nblk)
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{
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return EIO;
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}
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void
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machdep_start(char *entry, int how_to, char *loadaddr, char *ssym, char *esym)
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{
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char *load;
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extern u_int opendev;
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load = (char *)((long)entry & 0x00ffff00);
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/* /sys/lib/libsa/exec.c subtracts loadaddr from esym??? */
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esym += (u_long)loadaddr;
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if (load != loadaddr) {
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memcpy(load, loadaddr, esym - loadaddr);
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ssym += loadaddr - load;
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esym += loadaddr - load;
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}
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entry = (char *)((u_long)entry & 0xffffff);
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printf("\n");
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run_prog((u_long)how_to, /* r7 */
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(u_long)opendev, /* r6 */
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(u_long)load, /* r5 */
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(u_long)esym, /* r4 */
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(u_long)3253232532UL, /* r3 */
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(u_long)entry); /* pc */
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}
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void
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_rtt(void)
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{
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/* Use monitor scratch area as stack. */
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lprd(sp, 0x2000);
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/* Copy start of ROM. */
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memcpy((void *)0, (void *)0x10000000, 0x1f00);
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/* Jump into ROM copy. */
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__asm volatile("jump @0");
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while (1)
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;
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}
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