146 lines
3.9 KiB
C
146 lines
3.9 KiB
C
/* $NetBSD: sh5_machdep.c,v 1.7 2003/07/15 03:36:00 lukem Exp $ */
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/*
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* Copyright 2002 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Steve C. Woodford for Wasabi Systems, Inc.
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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 for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: sh5_machdep.c,v 1.7 2003/07/15 03:36:00 lukem Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/proc.h>
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#include <sys/exec.h>
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#include <sys/mount.h>
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#include <sys/reboot.h>
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#include <sys/user.h>
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#include <dev/cons.h>
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#include <machine/cpu.h>
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#include <machine/param.h>
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#include <machine/frame.h>
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#include <machine/pcb.h>
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#include <machine/cacheops.h>
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char machine_arch[] = MACHINE_ARCH;
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/*
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* Initialised by port-specific code to the number of CTC control
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* register ticks per micro-second.
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*
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* This is used, primarily, to implement delay().
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*/
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u_int _sh5_ctc_ticks_per_us;
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/*
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* This is used to calibrate the delay() loop in locore_subr.S
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*/
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u_int _sh5_delay_constant;
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/*
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* These variables are needed by /sbin/savecore
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*/
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u_int32_t dumpmag = 0x8fca0101; /* magic number */
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int dumpsize = 0; /* pages */
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long dumplo = 0; /* blocks */
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/*
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* This is called by main to set dumplo and dumpsize.
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* Dumps always skip the first NBPG of disk space
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* in case there might be a disk label stored there.
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* If there is extra space, put dump at the end to
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* reduce the chance that swapping trashes it.
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*/
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void
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cpu_dumpconf()
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{
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dumpsize = 0;
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}
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int waittime = -1;
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void
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sh5_reboot(int howto, char *bootstr)
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{
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if (cold) {
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howto |= RB_HALT;
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goto haltsys;
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}
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boothowto = howto;
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if ((howto & RB_NOSYNC) == 0 && waittime < 0) {
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waittime = 0;
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vfs_shutdown();
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/*
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* If we've been adjusting the clock, the todr
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* will be out of synch; adjust it now.
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*/
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resettodr();
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}
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/* Disable interrupts. */
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splhigh();
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#ifdef notyet
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/* Do a dump if requested. */
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if ((howto & (RB_DUMP | RB_HALT)) == RB_DUMP)
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dumpsys();
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#endif
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haltsys:
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doshutdownhooks();
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if (howto & RB_HALT) {
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printf("\n");
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printf("The operating system has halted.\n");
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printf("Please press any key to reboot.\n\n");
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cnpollc(1); /* for proper keyboard command handling */
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cngetc();
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cnpollc(0);
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}
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printf("rebooting...\n");
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delay(1000000);
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/*
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* The board-specific code (which called us) will deal with the
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* nitty-gritty of arranging for a reset/reboot.
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*/
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}
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