Add these to CVS so other folks can look at them and let me what
I'm screwing up.
This commit is contained in:
matt
parent
4e6f728497
commit
df03fa3de9
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@ -0,0 +1,404 @@
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/* $NetBSD: conf.c,v 1.1 2001/04/19 06:53:58 matt Exp $ */
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/*
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* Copyright (c) 1994-1998 Mark Brinicombe.
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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 Mark Brinicombe
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* for the NetBSD Project.
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* 4. The name of the company nor the name of the author may be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* RiscBSD kernel project
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*
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* conf.c
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*
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* Character and Block Device configuration
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* Console configuration
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*
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* Defines the structures cdevsw and constab
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*
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* Created : 17/09/94
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/buf.h>
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#include <sys/ioctl.h>
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#include <sys/tty.h>
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#include <sys/conf.h>
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#include <sys/vnode.h>
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#include <machine/conf.h>
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#include "wd.h"
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#include "fdc.h"
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#include "md.h"
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#include "sd.h"
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#include "st.h"
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#include "cd.h"
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#include "vnd.h"
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#include "ccd.h"
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#include "raid.h"
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/* Block devices */
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struct bdevsw bdevsw[] = {
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bdev_lkm_dummy(), /* 0: */
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bdev_swap_init(1, sw), /* 1: swap pseudo-device */
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bdev_lkm_dummy(), /* 2: */
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bdev_lkm_dummy(), /* 3: */
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bdev_lkm_dummy(), /* 4: */
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bdev_lkm_dummy(), /* 5: */
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bdev_lkm_dummy(), /* 6: */
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bdev_lkm_dummy(), /* 7: */
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bdev_lkm_dummy(), /* 8: */
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bdev_lkm_dummy(), /* 9: */
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bdev_lkm_dummy(), /* 10: */
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bdev_lkm_dummy(), /* 11: */
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bdev_lkm_dummy(), /* 12: */
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bdev_lkm_dummy(), /* 13: */
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bdev_lkm_dummy(), /* 14: */
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bdev_lkm_dummy(), /* 15: */
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bdev_disk_init(NWD, wd), /* 16: Internal IDE disk */
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bdev_lkm_dummy(), /* 17: floppy diskette */
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bdev_disk_init(NMD, md), /* 18: memory disk */
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bdev_disk_init(NVND,vnd), /* 19: vnode disk driver */
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bdev_lkm_dummy(), /* 20: */
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bdev_lkm_dummy(), /* 21: concatenated disk driver */
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bdev_lkm_dummy(), /* 22: */
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bdev_lkm_dummy(), /* 23: */
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bdev_lkm_dummy(), /* 24: SCSI disk */
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bdev_lkm_dummy(), /* 25: SCSI tape */
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bdev_lkm_dummy(), /* 26: SCSI cdrom */
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bdev_lkm_dummy(), /* 27: */
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bdev_lkm_dummy(), /* 28: */
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bdev_lkm_dummy(), /* 29: */
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bdev_lkm_dummy(), /* 30: */
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bdev_lkm_dummy(), /* 31: */
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bdev_lkm_dummy(), /* 32: */
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bdev_lkm_dummy(), /* 33: */
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bdev_lkm_dummy(), /* 34: */
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bdev_lkm_dummy(), /* 35: */
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bdev_lkm_dummy(), /* 36: */
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bdev_lkm_dummy(), /* 37: */
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bdev_lkm_dummy(), /* 38: */
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bdev_lkm_dummy(), /* 39: */
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bdev_lkm_dummy(), /* 40: */
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bdev_lkm_dummy(), /* 41: */
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bdev_lkm_dummy(), /* 42: */
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bdev_lkm_dummy(), /* 43: */
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bdev_lkm_dummy(), /* 44: */
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bdev_lkm_dummy(), /* 45: */
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bdev_lkm_dummy(), /* 46: */
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bdev_lkm_dummy(), /* 47: */
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bdev_lkm_dummy(), /* 48: */
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bdev_lkm_dummy(), /* 49: */
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bdev_lkm_dummy(), /* 50: */
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bdev_lkm_dummy(), /* 51: */
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bdev_lkm_dummy(), /* 52: */
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bdev_lkm_dummy(), /* 53: */
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bdev_lkm_dummy(), /* 54: */
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bdev_lkm_dummy(), /* 55: */
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bdev_lkm_dummy(), /* 56: */
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bdev_lkm_dummy(), /* 57: */
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bdev_lkm_dummy(), /* 58: */
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bdev_lkm_dummy(), /* 59: */
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bdev_lkm_dummy(), /* 60: */
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bdev_lkm_dummy(), /* 61: */
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bdev_lkm_dummy(), /* 62: */
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bdev_lkm_dummy(), /* 63: */
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bdev_lkm_dummy(), /* 64: */
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bdev_lkm_dummy(), /* 65: */
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bdev_lkm_dummy(), /* 66: */
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bdev_lkm_dummy(), /* 67: */
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bdev_lkm_dummy(), /* 68: */
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bdev_lkm_dummy(), /* 69: */
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bdev_lkm_dummy(), /* 70: */
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bdev_lkm_dummy(), /* 71: RAIDframe disk driver */
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bdev_lkm_dummy(), /* 72: */
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};
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int nblkdev = sizeof(bdevsw) / sizeof(bdevsw[0]);
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#include "pty.h"
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#define ptstty ptytty
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#define ptsioctl ptyioctl
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#define ptctty ptytty
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#define ptcioctl ptyioctl
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#include "com.h"
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#include "lpt.h"
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#include "bpfilter.h"
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#include "tun.h"
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#include "opms.h"
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#include "beep.h"
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#include "audio.h"
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#include "midi.h"
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#include "sequencer.h"
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#include "iic.h"
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#include "rtc.h"
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#include "ipfilter.h"
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#include "rnd.h"
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#include "fcom.h"
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#include "profiler.h"
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#include "joy.h"
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#include "vcoda.h" /* coda file system */
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#include "wsdisplay.h"
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#include "wskbd.h"
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#include "wsmouse.h"
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#include "wsmux.h"
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/* Character devices */
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struct cdevsw cdevsw[] = {
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cdev_mm_init(1,mm), /* 0: /dev/{null,mem,kmem,...} */
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cdev_swap_init(1,sw), /* 1: /dev/drum (swap pseudo-device) */
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cdev_cn_init(1,cn), /* 2: virtual console */
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cdev_ctty_init(1,ctty), /* 3: controlling terminal */
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cdev_notdef(), /* 4: */
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cdev_log_init(1,log), /* 5: /dev/klog */
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cdev_ptc_init(NPTY,ptc), /* 6: pseudo-tty master */
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cdev_tty_init(NPTY,pts), /* 7: pseudo-tty slave */
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cdev_lpt_init(NLPT,lpt), /* 8: parallel printer */
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cdev_lkm_dummy(), /* 9: qms driver */
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cdev_beep_init(NBEEP,beep), /* 10: simple beep device */
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cdev_lkm_dummy(), /* 11: kbd device */
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cdev_tty_init(NCOM,com), /* 12: serial port */
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cdev_lkm_dummy(), /* 13: */
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cdev_lkm_dummy(), /* 14: */
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cdev_lkm_dummy(), /* 15: */
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cdev_disk_init(NWD,wd), /* 16: ST506/ESDI/IDE disk */
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cdev_lkm_dummy(), /* 17: floppy diskette */
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cdev_disk_init(NMD,md), /* 18: memory disk driver */
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cdev_disk_init(NVND,vnd), /* 19: vnode disk driver */
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cdev_lkm_dummy(), /* 20: */
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cdev_lkm_dummy(), /* 21: concatenated disk driver */
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cdev_lkm_dummy(), /* 22: */
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cdev_lkm_dummy(), /* 23: */
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cdev_lkm_dummy(), /* 24: SCSI disk */
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cdev_lkm_dummy(), /* 25: SCSI tape */
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cdev_lkm_dummy(), /* 26: SCSI CD-ROM */
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cdev_lkm_dummy(), /* 27: SCSI autochanger */
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cdev_lkm_dummy(), /* 28: SCSI unknown */
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cdev_lkm_dummy(), /* 29: SCSI scanner */
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cdev_lkm_dummy(), /* 30: */
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cdev_lkm_dummy(), /* 31: */
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cdev_bpftun_init(NBPFILTER,bpf),/* 32: Berkeley packet filter */
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cdev_bpftun_init(NTUN,tun), /* 33: network tunnel */
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cdev_fd_init(1,filedesc), /* 34: file descriptor pseudo-device */
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cdev_lkm_init(NLKM,lkm), /* 35: loadable module driver */
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cdev_audio_init(NAUDIO,audio), /* 36: generic audio I/O */
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cdev_lkm_dummy(), /* 37: vidcconsole device */
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cdev_lkm_dummy(), /* 38: removed cpu device */
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cdev_lkm_dummy(), /* 39: reserved */
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cdev_lkm_dummy(), /* 40: PS2 mouse driver */
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cdev_lkm_dummy(), /* 41: reserved */
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cdev_lkm_dummy(), /* 42: IIC bus driver */
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cdev_lkm_dummy(), /* 43: RTC driver */
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cdev_lkm_dummy(), /* 44: reserved */
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cdev_lkm_dummy(), /* 45: reserved */
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cdev_ipf_init(NIPFILTER,ipl), /* 46: ip-filter device */
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cdev_lkm_dummy(), /* 47: reserved */
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cdev_lkm_dummy(), /* 48: reserved */
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cdev_lkm_dummy(), /* 49: ofrom */
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cdev_notdef(), /* 50: Smart card reader */
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cdev_notdef(), /* 51: reserved */
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cdev_rnd_init(NRND,rnd), /* 52: random source pseudo-device */
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cdev_prof_init(NPROFILER,prof), /* 53: fiq Profiler*/
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cdev_tty_init(NFCOM,fcom), /* 54: FOOTBRIDGE console */
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cdev_lkm_dummy(), /* 55: Reserved for bypass device */
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cdev_joy_init(NJOY,joy), /* 56: ISA joystick */
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cdev_midi_init(NMIDI,midi), /* 57: MIDI I/O */
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cdev_midi_init(NSEQUENCER,sequencer), /* 58: sequencer I/O */
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cdev_vc_nb_init(NVCODA,vc_nb_), /* 59: coda file system psdev */
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cdev_wsdisplay_init(NWSDISPLAY,wsdisplay), /* 60: frame buffers, etc. */
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cdev_mouse_init(NWSKBD,wskbd), /* 61: keyboards */
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cdev_mouse_init(NWSMOUSE,wsmouse), /* 62: mice */
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cdev_lkm_dummy(), /* 63: reserved */
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cdev_lkm_dummy(), /* 64: USB controller */
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cdev_lkm_dummy(), /* 65: USB generic HID */
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cdev_lkm_dummy(), /* 66: USB printer */
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cdev_lkm_dummy(), /* 67: reserved */
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cdev_lkm_dummy(), /* 68: reserved */
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cdev_lkm_dummy(), /* 69: reserved */
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cdev_lkm_dummy(), /* 70: SCSI bus */
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cdev_lkm_dummy(), /* 71: RAIDframe disk driver */
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cdev_lkm_dummy(), /* 72: USB generic driver */
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cdev_mouse_init(NWSMUX,wsmux), /* 73: ws multiplexor */
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cdev_lkm_dummy(), /* 74: USB tty */
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cdev_lkm_dummy(), /* 75: Diamond Rio 500 */
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cdev_lkm_dummy(), /* 76: USB scanner */
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cdev_notdef(), /* 77: */
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cdev_notdef(), /* 78: */
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cdev_notdef(), /* 79: */
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cdev_notdef(), /* 80: */
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cdev_notdef(), /* 81: */
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cdev_notdef(), /* 82: */
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};
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int nchrdev = sizeof(cdevsw) / sizeof(cdevsw[0]);
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int mem_no = 0; /* major device number of memory special file */
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/*
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* Swapdev is a fake device implemented
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* in sw.c used only internally to get to swstrategy.
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* It cannot be provided to the users, because the
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* swstrategy routine munches the b_dev and b_blkno entries
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* before calling the appropriate driver. This would horribly
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* confuse, e.g. the hashing routines. Instead, /dev/drum is
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* provided as a character (raw) device.
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*/
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dev_t swapdev = makedev(1, 0);
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/*
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* Returns true if dev is /dev/mem or /dev/kmem.
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*/
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int
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iskmemdev(dev)
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dev_t dev;
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{
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return (major(dev) == mem_no && minor(dev) < 2);
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}
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/*
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* Returns true if dev is /dev/zero.
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*/
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int
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iszerodev(dev)
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dev_t dev;
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{
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return (major(dev) == mem_no && minor(dev) == 3);
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}
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static int chrtoblktbl[] = {
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/* XXXX This needs to be dynamic for LKMs. */
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/*VCHR*/ /*VBLK*/
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/* 0 */ NODEV,
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/* 1 */ 1,
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/* 2 */ NODEV,
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/* 3 */ NODEV,
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/* 4 */ NODEV,
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/* 5 */ NODEV,
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/* 6 */ NODEV,
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/* 7 */ NODEV,
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/* 8 */ NODEV,
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/* 9 */ NODEV,
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/* 10 */ NODEV,
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/* 11 */ NODEV,
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/* 12 */ NODEV,
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/* 13 */ NODEV,
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/* 14 */ NODEV,
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/* 15 */ NODEV,
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/* 16 */ 16,
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/* 17 */ NODEV,
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/* 18 */ 18,
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/* 19 */ 19,
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/* 20 */ NODEV,
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/* 21 */ NODEV,
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/* 22 */ NODEV,
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/* 23 */ NODEV,
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/* 24 */ NODEV,
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/* 25 */ NODEV,
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/* 26 */ NODEV,
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/* 27 */ NODEV,
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/* 28 */ NODEV,
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/* 29 */ NODEV,
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/* 30 */ NODEV,
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/* 31 */ NODEV,
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/* 32 */ NODEV,
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/* 33 */ NODEV,
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/* 34 */ NODEV,
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/* 35 */ NODEV,
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/* 36 */ NODEV,
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/* 37 */ NODEV,
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/* 38 */ NODEV,
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/* 39 */ NODEV,
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/* 40 */ NODEV,
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/* 41 */ NODEV,
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/* 42 */ NODEV,
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/* 43 */ NODEV,
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/* 44 */ NODEV,
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/* 45 */ NODEV,
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/* 46 */ NODEV,
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/* 47 */ NODEV,
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/* 48 */ NODEV,
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/* 49 */ NODEV,
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/* 50 */ NODEV,
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/* 51 */ NODEV,
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/* 52 */ NODEV,
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/* 53 */ NODEV,
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/* 54 */ NODEV,
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/* 55 */ NODEV,
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/* 56 */ NODEV,
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/* 57 */ NODEV,
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/* 58 */ NODEV,
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/* 59 */ NODEV,
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/* 60 */ NODEV,
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/* 61 */ NODEV,
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/* 62 */ NODEV,
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/* 63 */ NODEV,
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/* 64 */ NODEV,
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/* 65 */ NODEV,
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/* 66 */ NODEV,
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/* 67 */ NODEV,
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/* 68 */ NODEV,
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/* 69 */ NODEV,
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/* 70 */ NODEV,
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/* 71 */ NODEV,
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/* 72 */ NODEV,
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/* 73 */ NODEV,
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/* 74 */ NODEV,
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/* 75 */ NODEV,
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/* 76 */ NODEV,
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/* 77 */ NODEV,
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/* 78 */ NODEV,
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/* 79 */ NODEV,
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/* 80 */ NODEV,
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/* 81 */ NODEV,
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/* 82 */ NODEV,
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};
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/*
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* Convert a character device number to a block device number.
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*/
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dev_t
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chrtoblk(dev)
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dev_t dev;
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{
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int blkmaj;
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if (major(dev) >= nchrdev)
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return (NODEV);
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blkmaj = chrtoblktbl[major(dev)];
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if (blkmaj == NODEV)
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return (NODEV);
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return (makedev(blkmaj, minor(dev)));
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}
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|
|
@ -0,0 +1,948 @@
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/* $NetBSD: netwinder_machdep.c,v 1.1 2001/04/19 06:53:58 matt Exp $ */
|
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|
||||
/*
|
||||
* Copyright (c) 1997,1998 Mark Brinicombe.
|
||||
* Copyright (c) 1997,1998 Causality Limited.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by Mark Brinicombe
|
||||
* for the NetBSD Project.
|
||||
* 4. The name of the company nor the name of the author may be used to
|
||||
* endorse or promote products derived from this software without specific
|
||||
* prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
||||
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
|
||||
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* Machine dependant functions for kernel setup for EBSA285 core architecture
|
||||
* using Netwinder firmware
|
||||
*
|
||||
* Created : 24/11/97
|
||||
*/
|
||||
|
||||
#include "opt_ddb.h"
|
||||
#include "opt_pmap_debug.h"
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/device.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/exec.h>
|
||||
#include <sys/proc.h>
|
||||
#include <sys/msgbuf.h>
|
||||
#include <sys/reboot.h>
|
||||
#include <sys/termios.h>
|
||||
|
||||
#include <dev/cons.h>
|
||||
|
||||
#include <machine/db_machdep.h>
|
||||
#include <ddb/db_sym.h>
|
||||
#include <ddb/db_extern.h>
|
||||
|
||||
#include <machine/bootconfig.h>
|
||||
#include <machine/bus.h>
|
||||
#include <machine/cpu.h>
|
||||
#include <machine/frame.h>
|
||||
#include <machine/irqhandler.h>
|
||||
#include <machine/pte.h>
|
||||
#include <machine/undefined.h>
|
||||
|
||||
#include <machine/netwinder_boot.h>
|
||||
#include <arm32/footbridge/dc21285mem.h>
|
||||
#include <arm32/footbridge/dc21285reg.h>
|
||||
|
||||
#include "opt_ipkdb.h"
|
||||
|
||||
#include "isa.h"
|
||||
#if NISA > 0
|
||||
#include <dev/isa/isareg.h>
|
||||
#include <dev/isa/isavar.h>
|
||||
#endif
|
||||
|
||||
#define VERBOSE_INIT_ARM
|
||||
|
||||
/*
|
||||
* Address to call from cpu_reset() to reset the machine.
|
||||
* This is machine architecture dependant as it varies depending
|
||||
* on where the ROM appears when you turn the MMU off.
|
||||
*/
|
||||
|
||||
u_int cpu_reset_address = DC21285_ROM_BASE;
|
||||
|
||||
u_int dc21285_fclk = FCLK;
|
||||
|
||||
/* Define various stack sizes in pages */
|
||||
#define IRQ_STACK_SIZE 1
|
||||
#define ABT_STACK_SIZE 1
|
||||
#ifdef IPKDB
|
||||
#define UND_STACK_SIZE 2
|
||||
#else
|
||||
#define UND_STACK_SIZE 1
|
||||
#endif
|
||||
|
||||
struct nwbootinfo nwbootinfo;
|
||||
BootConfig bootconfig; /* Boot config storage */
|
||||
static char bootargs[MAX_BOOT_STRING + 1];
|
||||
char *boot_args = NULL;
|
||||
char *boot_file = NULL;
|
||||
|
||||
vm_offset_t physical_start;
|
||||
vm_offset_t physical_freestart;
|
||||
vm_offset_t physical_freeend;
|
||||
vm_offset_t physical_end;
|
||||
u_int free_pages;
|
||||
vm_offset_t pagetables_start;
|
||||
int physmem = 0;
|
||||
|
||||
/*int debug_flags;*/
|
||||
#ifndef PMAP_STATIC_L1S
|
||||
int max_processes = 64; /* Default number */
|
||||
#endif /* !PMAP_STATIC_L1S */
|
||||
|
||||
/* Physical and virtual addresses for some global pages */
|
||||
pv_addr_t systempage;
|
||||
pv_addr_t irqstack;
|
||||
pv_addr_t undstack;
|
||||
pv_addr_t abtstack;
|
||||
pv_addr_t kernelstack;
|
||||
|
||||
vm_offset_t msgbufphys;
|
||||
|
||||
extern u_int data_abort_handler_address;
|
||||
extern u_int prefetch_abort_handler_address;
|
||||
extern u_int undefined_handler_address;
|
||||
|
||||
#ifdef PMAP_DEBUG
|
||||
extern int pmap_debug_level;
|
||||
#endif
|
||||
|
||||
#define KERNEL_PT_SYS 0 /* Page table for mapping proc0 zero page */
|
||||
#define KERNEL_PT_KERNEL 1 /* Page table for mapping kernel */
|
||||
#define KERNEL_PT_VMDATA 2 /* Page tables for mapping kernel VM */
|
||||
#define KERNEL_PT_VMDATA_NUM (KERNEL_VM_SIZE >> (PDSHIFT + 2))
|
||||
#define NUM_KERNEL_PTS (KERNEL_PT_VMDATA + KERNEL_PT_VMDATA_NUM)
|
||||
|
||||
pt_entry_t kernel_pt_table[NUM_KERNEL_PTS];
|
||||
|
||||
struct user *proc0paddr;
|
||||
|
||||
/* Prototypes */
|
||||
|
||||
void consinit __P((void));
|
||||
|
||||
int fcomcnattach __P((u_int iobase, int rate,tcflag_t cflag));
|
||||
int fcomcndetach __P((void));
|
||||
|
||||
void isa_netwinder_init __P((u_int iobase, u_int membase));
|
||||
|
||||
void map_section __P((vm_offset_t pt, vm_offset_t va, vm_offset_t pa,
|
||||
int cacheable));
|
||||
void map_pagetable __P((vm_offset_t pt, vm_offset_t va, vm_offset_t pa));
|
||||
void map_entry __P((vm_offset_t pt, vm_offset_t va, vm_offset_t pa));
|
||||
void map_entry_nc __P((vm_offset_t pt, vm_offset_t va, vm_offset_t pa));
|
||||
void map_entry_ro __P((vm_offset_t pt, vm_offset_t va, vm_offset_t pa));
|
||||
vm_size_t map_chunk __P((vm_offset_t pd, vm_offset_t pt, vm_offset_t va,
|
||||
vm_offset_t pa, vm_size_t size, u_int acc,
|
||||
u_int flg));
|
||||
|
||||
void process_kernel_args __P((char *));
|
||||
void data_abort_handler __P((trapframe_t *frame));
|
||||
void prefetch_abort_handler __P((trapframe_t *frame));
|
||||
void undefinedinstruction_bounce __P((trapframe_t *frame));
|
||||
void zero_page_readonly __P((void));
|
||||
void zero_page_readwrite __P((void));
|
||||
extern void configure __P((void));
|
||||
extern void db_machine_init __P((void));
|
||||
extern void parse_mi_bootargs __P((char *args));
|
||||
extern void dumpsys __P((void));
|
||||
|
||||
/* A load of console goo. */
|
||||
#include "vga.h"
|
||||
#if (NVGA > 0)
|
||||
#include <dev/ic/mc6845reg.h>
|
||||
#include <dev/ic/pcdisplayvar.h>
|
||||
#include <dev/ic/vgareg.h>
|
||||
#include <dev/ic/vgavar.h>
|
||||
#endif
|
||||
|
||||
#include "pckbc.h"
|
||||
#if (NPCKBC > 0)
|
||||
#include <dev/ic/i8042reg.h>
|
||||
#include <dev/ic/pckbcvar.h>
|
||||
#endif
|
||||
|
||||
#include "com.h"
|
||||
#if (NCOM > 0)
|
||||
#include <dev/ic/comreg.h>
|
||||
#include <dev/ic/comvar.h>
|
||||
#ifndef CONCOMADDR
|
||||
#define CONCOMADDR 0x3f8
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifndef CONSDEVNAME
|
||||
#define CONSDEVNAME "com"
|
||||
#endif
|
||||
|
||||
#define CONSPEED B115200
|
||||
#ifndef CONSPEED
|
||||
#define CONSPEED B9600 /* TTYDEF_SPEED */
|
||||
#endif
|
||||
#ifndef CONMODE
|
||||
#define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
|
||||
#endif
|
||||
|
||||
int comcnspeed = CONSPEED;
|
||||
int comcnmode = CONMODE;
|
||||
|
||||
extern struct consdev kcomcons;
|
||||
static void kcomcnputc(dev_t, int);
|
||||
|
||||
/*
|
||||
* void cpu_reboot(int howto, char *bootstr)
|
||||
*
|
||||
* Reboots the system
|
||||
*
|
||||
* Deal with any syncing, unmounting, dumping and shutdown hooks,
|
||||
* then reset the CPU.
|
||||
*/
|
||||
|
||||
void
|
||||
cpu_reboot(howto, bootstr)
|
||||
int howto;
|
||||
char *bootstr;
|
||||
{
|
||||
#ifdef DIAGNOSTIC
|
||||
/* info */
|
||||
printf("boot: howto=%08x curproc=%p\n", howto, curproc);
|
||||
#endif
|
||||
|
||||
/*
|
||||
* If we are still cold then hit the air brakes
|
||||
* and crash to earth fast
|
||||
*/
|
||||
if (cold) {
|
||||
doshutdownhooks();
|
||||
printf("The operating system has halted.\n");
|
||||
printf("Please press any key to reboot.\n\n");
|
||||
cngetc();
|
||||
printf("rebooting...\n");
|
||||
cpu_reset();
|
||||
/*NOTREACHED*/
|
||||
}
|
||||
|
||||
/* Disable console buffering */
|
||||
/* cnpollc(1);*/
|
||||
|
||||
/*
|
||||
* If RB_NOSYNC was not specified sync the discs.
|
||||
* Note: Unless cold is set to 1 here, syslogd will die during the unmount.
|
||||
* It looks like syslogd is getting woken up only to find that it cannot
|
||||
* page part of the binary in as the filesystem has been unmounted.
|
||||
*/
|
||||
if (!(howto & RB_NOSYNC))
|
||||
bootsync();
|
||||
|
||||
/* Say NO to interrupts */
|
||||
splhigh();
|
||||
|
||||
/* Do a dump if requested. */
|
||||
if ((howto & (RB_DUMP | RB_HALT)) == RB_DUMP)
|
||||
dumpsys();
|
||||
|
||||
/* Run any shutdown hooks */
|
||||
doshutdownhooks();
|
||||
|
||||
/* Make sure IRQ's are disabled */
|
||||
IRQdisable;
|
||||
|
||||
if (howto & RB_HALT) {
|
||||
printf("The operating system has halted.\n");
|
||||
printf("Please press any key to reboot.\n\n");
|
||||
cngetc();
|
||||
}
|
||||
|
||||
printf("rebooting...\n");
|
||||
cpu_reset();
|
||||
/*NOTREACHED*/
|
||||
}
|
||||
|
||||
/*
|
||||
* Mapping table for core kernel memory. This memory is mapped at init
|
||||
* time with section mappings.
|
||||
*/
|
||||
struct l1_sec_map {
|
||||
vm_offset_t va;
|
||||
vm_offset_t pa;
|
||||
vm_size_t size;
|
||||
int flags;
|
||||
} l1_sec_table[] = {
|
||||
/* Map 1MB for CSR space */
|
||||
{ DC21285_ARMCSR_VBASE, DC21285_ARMCSR_BASE,
|
||||
DC21285_ARMCSR_VSIZE, 0 },
|
||||
/* Map 1MB for fast cache cleaning space */
|
||||
{ DC21285_CACHE_FLUSH_VBASE, DC28285_SA_CACHE_FLUSH_BASE,
|
||||
DC21285_CACHE_FLUSH_VSIZE, 1 },
|
||||
/* Map 1MB for PCI IO space */
|
||||
{ DC21285_PCI_IO_VBASE, DC21285_PCI_IO_BASE,
|
||||
DC21285_PCI_IO_VSIZE, 0 },
|
||||
/* Map 1MB for PCI IACK space */
|
||||
{ DC21285_PCI_IACK_VBASE, DC21285_PCI_IACK_SPECIAL,
|
||||
DC21285_PCI_IACK_VSIZE, 0 },
|
||||
/* Map 16MB of type 1 PCI config access */
|
||||
{ DC21285_PCI_TYPE_1_CONFIG_VBASE, DC21285_PCI_TYPE_1_CONFIG,
|
||||
DC21285_PCI_TYPE_1_CONFIG_VSIZE, 0 },
|
||||
/* Map 16MB of type 0 PCI config access */
|
||||
{ DC21285_PCI_TYPE_0_CONFIG_VBASE, DC21285_PCI_TYPE_0_CONFIG,
|
||||
DC21285_PCI_TYPE_0_CONFIG_VSIZE, 0 },
|
||||
/* Map 1MB of 32 bit PCI address space for ISA MEM accesses via PCI */
|
||||
{ DC21285_PCI_ISA_MEM_VBASE, DC21285_PCI_MEM_BASE,
|
||||
DC21285_PCI_ISA_MEM_VSIZE, 0 },
|
||||
{ 0, 0, 0, 0 }
|
||||
};
|
||||
|
||||
/*
|
||||
* u_int initarm(struct ebsaboot *bootinfo)
|
||||
*
|
||||
* Initial entry point on startup. This gets called before main() is
|
||||
* entered.
|
||||
* It should be responcible for setting up everything that must be
|
||||
* in place when main is called.
|
||||
* This includes
|
||||
* Taking a copy of the boot configuration structure.
|
||||
* Initialising the physical console so characters can be printed.
|
||||
* Setting up page tables for the kernel
|
||||
* Relocating the kernel to the bottom of physical memory
|
||||
*/
|
||||
|
||||
u_int
|
||||
initarm(bootinfo)
|
||||
struct nwbootinfo *bootinfo;
|
||||
{
|
||||
int loop;
|
||||
int loop1;
|
||||
u_int logical;
|
||||
u_int l1pagetable;
|
||||
u_int l2pagetable;
|
||||
extern char page0[], page0_end[];
|
||||
#if 0
|
||||
extern int end[];
|
||||
extern int *esym;
|
||||
#endif
|
||||
struct exec *kernexec = (struct exec *)KERNEL_TEXT_BASE;
|
||||
pv_addr_t kernel_l1pt;
|
||||
pv_addr_t kernel_ptpt;
|
||||
|
||||
cn_tab = &kcomcons;
|
||||
/*
|
||||
* Heads up ... Setup the CPU / MMU / TLB functions
|
||||
*/
|
||||
if (set_cpufuncs())
|
||||
panic("cpu not recognized!");
|
||||
#if 0
|
||||
/* Copy the boot configuration structure */
|
||||
nwbootinfo = *bootinfo;
|
||||
|
||||
if (nwbootinfo.bt_fclk >= 50000000
|
||||
&& nwbootinfo.bt_fclk <= 66000000)
|
||||
dc21285_fclk = nwbootinfo.bt_fclk;
|
||||
#endif
|
||||
|
||||
/* Fake bootconfig structure for the benefit of pmap.c */
|
||||
/* XXX must make the memory description h/w independant */
|
||||
bootconfig.dramblocks = 1;
|
||||
bootconfig.dram[0].address = 0;
|
||||
bootconfig.dram[0].pages = 0x04000000 / NBPG; /* nwbootinfo.bi_nrpages */
|
||||
/* - nwbootinfo.bt_memstart) / NBPG */;
|
||||
|
||||
/*
|
||||
* Initialise the diagnostic serial console
|
||||
* This allows a means of generating output during initarm().
|
||||
* Once all the memory map changes are complete we can call consinit()
|
||||
* and not have to worry about things moving.
|
||||
*/
|
||||
/* fcomcnattach(DC21285_ARMCSR_BASE, comcnspeed, comcnmode);*/
|
||||
|
||||
/* Talk to the user */
|
||||
printf("\nNetBSD/netwinder booting ...\n");
|
||||
|
||||
#if 0
|
||||
if (nwbootinfo.bt_magic != BT_MAGIC_NUMBER_EBSA
|
||||
&& nwbootinfo.bt_magic != BT_MAGIC_NUMBER_CATS)
|
||||
panic("Incompatible magic number passed in boot args\n");
|
||||
#endif
|
||||
|
||||
/* {
|
||||
int loop;
|
||||
for (loop = 0; loop < 8; ++loop) {
|
||||
printf("%08x\n", *(((int *)bootinfo)+loop));
|
||||
}
|
||||
}*/
|
||||
|
||||
/*
|
||||
* Ok we have the following memory map
|
||||
*
|
||||
* virtual address == physical address apart from the areas:
|
||||
* 0x00000000 -> 0x000fffff which is mapped to
|
||||
* top 1MB of physical memory
|
||||
* 0x00100000 -> 0x0fffffff which is mapped to
|
||||
* physical addresses 0x00100000 -> 0x0fffffff
|
||||
* 0x10000000 -> 0x1fffffff which is mapped to
|
||||
* physical addresses 0x00000000 -> 0x0fffffff
|
||||
* 0x20000000 -> 0xefffffff which is mapped to
|
||||
* physical addresses 0x20000000 -> 0xefffffff
|
||||
* 0xf0000000 -> 0xf03fffff which is mapped to
|
||||
* physical addresses 0x00000000 -> 0x003fffff
|
||||
*
|
||||
* This means that the kernel is mapped suitably for continuing
|
||||
* execution, all I/O is mapped 1:1 virtual to physical and
|
||||
* physical memory is accessable.
|
||||
*
|
||||
* The initarm() has the responcibility for creating the kernel
|
||||
* page tables.
|
||||
* It must also set up various memory pointers that are used
|
||||
* by pmap etc.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Examine the boot args string for options we need to know about
|
||||
* now.
|
||||
*/
|
||||
#if 0
|
||||
process_kernel_args((char *)nwbootinfo.bt_args);
|
||||
#endif
|
||||
|
||||
printf("initarm: Configuring system ...\n");
|
||||
|
||||
/*
|
||||
* Set up the variables that define the availablilty of
|
||||
* physical memory
|
||||
*/
|
||||
physical_start = 0 /*nwbootinfo.bt_memstart*/;
|
||||
physical_freestart = physical_start;
|
||||
physical_end = /*nwbootinfo.bt_memend*/ /*nwbootinfo.bi_nrpages * NBPG */ 64*1024*1024;
|
||||
physical_freeend = physical_end;
|
||||
free_pages = (physical_end - physical_start) / NBPG;
|
||||
|
||||
physmem = (physical_end - physical_start) / NBPG;
|
||||
|
||||
/* Tell the user about the memory */
|
||||
printf("physmemory: %d pages at 0x%08lx -> 0x%08lx\n", physmem,
|
||||
physical_start, physical_end - 1);
|
||||
|
||||
/*
|
||||
* Ok the kernel occupies the bottom of physical memory.
|
||||
* The first free page after the kernel can be found in
|
||||
* nwbootinfo->bt_memavail
|
||||
* We now need to allocate some fixed page tables to get the kernel
|
||||
* going.
|
||||
* We allocate one page directory and a number page tables and store
|
||||
* the physical addresses in the kernel_pt_table array.
|
||||
*
|
||||
* Ok the next bit of physical allocation may look complex but it is
|
||||
* simple really. I have done it like this so that no memory gets
|
||||
* wasted during the allocation of various pages and tables that are
|
||||
* all different sizes.
|
||||
* The start addresses will be page aligned.
|
||||
* We allocate the kernel page directory on the first free 16KB boundry
|
||||
* we find.
|
||||
* We allocate the kernel page tables on the first 4KB boundry we find.
|
||||
* Since we allocate at least 3 L2 pagetables we know that we must
|
||||
* encounter at least one 16KB aligned address.
|
||||
*/
|
||||
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("Allocating page tables\n");
|
||||
#endif
|
||||
|
||||
/* Update the address of the first free 16KB chunk of physical memory */
|
||||
physical_freestart = KERNEL_TEXT_BASE - KERNEL_BASE;
|
||||
physical_freestart += (kernexec->a_text + (NBPG - 1)) & ~(NBPG - 1);
|
||||
physical_freestart += (kernexec->a_data + (NBPG - 1)) & ~(NBPG - 1);
|
||||
physical_freestart += (kernexec->a_bss + (NBPG - 1)) & ~(NBPG - 1);
|
||||
#if 0
|
||||
physical_freestart += (kernexec->a_syms + sizeof(int)
|
||||
+ *(u_int *)((int)end + kernexec->a_syms + sizeof(int))
|
||||
+ (NBPG - 1)) & ~(NBPG - 1);
|
||||
#endif
|
||||
|
||||
free_pages -= (physical_freestart - physical_start) / NBPG;
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("freestart = %#lx, free_pages = %d (%#x)\n",
|
||||
physical_freestart, free_pages, free_pages);
|
||||
#endif
|
||||
|
||||
/* Define a macro to simplify memory allocation */
|
||||
#define valloc_pages(var, np) \
|
||||
alloc_pages((var).pv_pa, (np)); \
|
||||
(var).pv_va = KERNEL_BASE + (var).pv_pa - physical_start;
|
||||
|
||||
#define alloc_pages(var, np) \
|
||||
(var) = physical_freestart; \
|
||||
physical_freestart += ((np) * NBPG); \
|
||||
free_pages -= (np); \
|
||||
memset((char *)(var), 0, ((np) * NBPG));
|
||||
|
||||
loop1 = 0;
|
||||
kernel_l1pt.pv_pa = 0;
|
||||
for (loop = 0; loop <= NUM_KERNEL_PTS; ++loop) {
|
||||
/* Are we 16KB aligned for an L1 ? */
|
||||
if ((physical_freestart & (PD_SIZE - 1)) == 0
|
||||
&& kernel_l1pt.pv_pa == 0) {
|
||||
valloc_pages(kernel_l1pt, PD_SIZE / NBPG);
|
||||
} else {
|
||||
alloc_pages(kernel_pt_table[loop1], PT_SIZE / NBPG);
|
||||
++loop1;
|
||||
}
|
||||
}
|
||||
|
||||
/* This should never be able to happen but better confirm that. */
|
||||
if (!kernel_l1pt.pv_pa || (kernel_l1pt.pv_pa & (PD_SIZE-1)) != 0)
|
||||
panic("initarm: Failed to align the kernel page directory\n");
|
||||
|
||||
/*
|
||||
* Allocate a page for the system page mapped to V0x00000000
|
||||
* This page will just contain the system vectors and can be
|
||||
* shared by all processes.
|
||||
*/
|
||||
alloc_pages(systempage.pv_pa, 1);
|
||||
|
||||
/* Allocate a page for the page table to map kernel page tables*/
|
||||
valloc_pages(kernel_ptpt, PT_SIZE / NBPG);
|
||||
|
||||
/* Allocate stacks for all modes */
|
||||
valloc_pages(irqstack, IRQ_STACK_SIZE);
|
||||
valloc_pages(abtstack, ABT_STACK_SIZE);
|
||||
valloc_pages(undstack, UND_STACK_SIZE);
|
||||
valloc_pages(kernelstack, UPAGES);
|
||||
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("IRQ stack: p0x%08lx v0x%08lx\n", irqstack.pv_pa, irqstack.pv_va);
|
||||
printf("ABT stack: p0x%08lx v0x%08lx\n", abtstack.pv_pa, abtstack.pv_va);
|
||||
printf("UND stack: p0x%08lx v0x%08lx\n", undstack.pv_pa, undstack.pv_va);
|
||||
printf("SVC stack: p0x%08lx v0x%08lx\n", kernelstack.pv_pa, kernelstack.pv_va);
|
||||
#endif
|
||||
|
||||
alloc_pages(msgbufphys, round_page(MSGBUFSIZE) / NBPG);
|
||||
|
||||
/*
|
||||
* Ok we have allocated physical pages for the primary kernel
|
||||
* page tables
|
||||
*/
|
||||
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("Creating L1 page table at %#lx\n", kernel_l1pt.pv_pa);
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Now we start consturction of the L1 page table
|
||||
* We start by mapping the L2 page tables into the L1.
|
||||
* This means that we can replace L1 mappings later on if necessary
|
||||
*/
|
||||
l1pagetable = kernel_l1pt.pv_pa;
|
||||
|
||||
/* Map the L2 pages tables in the L1 page table */
|
||||
map_pagetable(l1pagetable, 0x00000000,
|
||||
kernel_pt_table[KERNEL_PT_SYS]);
|
||||
map_pagetable(l1pagetable, KERNEL_BASE,
|
||||
kernel_pt_table[KERNEL_PT_KERNEL]);
|
||||
for (loop = 0; loop < KERNEL_PT_VMDATA_NUM; ++loop)
|
||||
map_pagetable(l1pagetable, KERNEL_VM_BASE + loop * 0x00400000,
|
||||
kernel_pt_table[KERNEL_PT_VMDATA + loop]);
|
||||
map_pagetable(l1pagetable, PROCESS_PAGE_TBLS_BASE,
|
||||
kernel_ptpt.pv_pa);
|
||||
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("Mapping kernel\n");
|
||||
#endif
|
||||
|
||||
/* Now we fill in the L2 pagetable for the kernel static code/data */
|
||||
l2pagetable = kernel_pt_table[KERNEL_PT_KERNEL];
|
||||
|
||||
if (N_GETMAGIC(kernexec[0]) != ZMAGIC)
|
||||
panic("Illegal kernel format\n");
|
||||
else {
|
||||
|
||||
logical = map_chunk(0, l2pagetable, KERNEL_BASE,
|
||||
physical_start, KERNEL_TEXT_BASE - KERNEL_BASE,
|
||||
AP_KRW, PT_CACHEABLE);
|
||||
logical += map_chunk(0, l2pagetable, KERNEL_BASE + logical,
|
||||
physical_start + logical, kernexec->a_text,
|
||||
AP_KR, PT_CACHEABLE);
|
||||
logical += map_chunk(0, l2pagetable, KERNEL_BASE + logical,
|
||||
physical_start + logical, kernexec->a_data,
|
||||
AP_KRW, PT_CACHEABLE);
|
||||
logical += map_chunk(0, l2pagetable, KERNEL_BASE + logical,
|
||||
physical_start + logical, kernexec->a_bss,
|
||||
AP_KRW, PT_CACHEABLE);
|
||||
#if 0
|
||||
logical += map_chunk(0, l2pagetable, KERNEL_BASE + logical,
|
||||
physical_start + logical, kernexec->a_syms + sizeof(int)
|
||||
+ *(u_int *)((int)end + kernexec->a_syms + sizeof(int)),
|
||||
AP_KRW, PT_CACHEABLE);
|
||||
#endif
|
||||
}
|
||||
#if 0
|
||||
/*
|
||||
* PATCH PATCH ...
|
||||
*
|
||||
* Fixup the first word of the kernel to be the instruction
|
||||
* add pc, pc, #0x41000000
|
||||
*
|
||||
* This traps the case where the CPU core resets due to bus contention
|
||||
* on a prototype CATS system and will reboot into the firmware.
|
||||
*/
|
||||
*((u_int *)KERNEL_TEXT_BASE) = 0xe28ff441;
|
||||
#endif
|
||||
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("Constructing L2 page tables\n");
|
||||
#endif
|
||||
|
||||
/* Map the boot arguments page */
|
||||
#if 0
|
||||
map_entry_ro(l2pagetable, nwbootinfo.bt_vargp, nwbootinfo.bt_pargp);
|
||||
#endif
|
||||
|
||||
/* Map the stack pages */
|
||||
map_chunk(0, l2pagetable, irqstack.pv_va, irqstack.pv_pa,
|
||||
IRQ_STACK_SIZE * NBPG, AP_KRW, PT_CACHEABLE);
|
||||
map_chunk(0, l2pagetable, abtstack.pv_va, abtstack.pv_pa,
|
||||
ABT_STACK_SIZE * NBPG, AP_KRW, PT_CACHEABLE);
|
||||
map_chunk(0, l2pagetable, undstack.pv_va, undstack.pv_pa,
|
||||
UND_STACK_SIZE * NBPG, AP_KRW, PT_CACHEABLE);
|
||||
map_chunk(0, l2pagetable, kernelstack.pv_va, kernelstack.pv_pa,
|
||||
UPAGES * NBPG, AP_KRW, PT_CACHEABLE);
|
||||
map_chunk(0, l2pagetable, kernel_l1pt.pv_va, kernel_l1pt.pv_pa,
|
||||
PD_SIZE, AP_KRW, 0);
|
||||
|
||||
/* Map the page table that maps the kernel pages */
|
||||
map_entry_nc(l2pagetable, kernel_ptpt.pv_pa, kernel_ptpt.pv_pa);
|
||||
|
||||
/*
|
||||
* Map entries in the page table used to map PTE's
|
||||
* Basically every kernel page table gets mapped here
|
||||
*/
|
||||
/* The -2 is slightly bogus, it should be -log2(sizeof(pt_entry_t)) */
|
||||
l2pagetable = kernel_ptpt.pv_pa;
|
||||
map_entry_nc(l2pagetable, (KERNEL_BASE >> (PGSHIFT-2)),
|
||||
kernel_pt_table[KERNEL_PT_KERNEL]);
|
||||
map_entry_nc(l2pagetable, (PROCESS_PAGE_TBLS_BASE >> (PGSHIFT-2)),
|
||||
kernel_ptpt.pv_pa);
|
||||
map_entry_nc(l2pagetable, (0x00000000 >> (PGSHIFT-2)),
|
||||
kernel_pt_table[KERNEL_PT_SYS]);
|
||||
for (loop = 0; loop < KERNEL_PT_VMDATA_NUM; ++loop)
|
||||
map_entry_nc(l2pagetable, ((KERNEL_VM_BASE +
|
||||
(loop * 0x00400000)) >> (PGSHIFT-2)),
|
||||
kernel_pt_table[KERNEL_PT_VMDATA + loop]);
|
||||
|
||||
/*
|
||||
* Map the system page in the kernel page table for the bottom 1Meg
|
||||
* of the virtual memory map.
|
||||
*/
|
||||
l2pagetable = kernel_pt_table[KERNEL_PT_SYS];
|
||||
map_entry(l2pagetable, 0x00000000, systempage.pv_pa);
|
||||
|
||||
/* Map the core memory needed before autoconfig */
|
||||
loop = 0;
|
||||
while (l1_sec_table[loop].size) {
|
||||
vm_size_t sz;
|
||||
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("%08lx -> %08lx @ %08lx\n", l1_sec_table[loop].pa,
|
||||
l1_sec_table[loop].pa + l1_sec_table[loop].size - 1,
|
||||
l1_sec_table[loop].va);
|
||||
#endif
|
||||
for (sz = 0; sz < l1_sec_table[loop].size; sz += L1_SEC_SIZE)
|
||||
map_section(l1pagetable, l1_sec_table[loop].va + sz,
|
||||
l1_sec_table[loop].pa + sz,
|
||||
l1_sec_table[loop].flags);
|
||||
++loop;
|
||||
}
|
||||
|
||||
/*
|
||||
* Now we have the real page tables in place so we can switch to them.
|
||||
* Once this is done we will be running with the REAL kernel page tables.
|
||||
*/
|
||||
|
||||
/* Switch tables */
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("freestart = %#lx, free_pages = %d (%#x)\n",
|
||||
physical_freestart, free_pages, free_pages);
|
||||
printf("switching to new L1 page table @%#lx...", kernel_l1pt.pv_pa);
|
||||
#endif
|
||||
|
||||
setttb(kernel_l1pt.pv_pa);
|
||||
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("done!\n");
|
||||
#endif
|
||||
/*
|
||||
* Ok the DC21285 CSR registers have just moved.
|
||||
* Detach the diagnostic serial port and reattach at the new address.
|
||||
*/
|
||||
/* fcomcndetach();*/
|
||||
|
||||
/*
|
||||
* XXX this should only be done in main() but it useful to
|
||||
* have output earlier ...
|
||||
*/
|
||||
consinit();
|
||||
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("bootstrap done.\n");
|
||||
#endif
|
||||
|
||||
/* Right set up the vectors at the bottom of page 0 */
|
||||
memcpy((char *)0x00000000, page0, page0_end - page0);
|
||||
|
||||
/* We have modified a text page so sync the icache */
|
||||
cpu_cache_syncI();
|
||||
|
||||
/*
|
||||
* Pages were allocated during the secondary bootstrap for the
|
||||
* stacks for different CPU modes.
|
||||
* We must now set the r13 registers in the different CPU modes to
|
||||
* point to these stacks.
|
||||
* Since the ARM stacks use STMFD etc. we must set r13 to the top end
|
||||
* of the stack memory.
|
||||
*/
|
||||
printf("init subsystems: stacks ");
|
||||
|
||||
set_stackptr(PSR_IRQ32_MODE, irqstack.pv_va + IRQ_STACK_SIZE * NBPG);
|
||||
set_stackptr(PSR_ABT32_MODE, abtstack.pv_va + ABT_STACK_SIZE * NBPG);
|
||||
set_stackptr(PSR_UND32_MODE, undstack.pv_va + UND_STACK_SIZE * NBPG);
|
||||
|
||||
/*
|
||||
* Well we should set a data abort handler.
|
||||
* Once things get going this will change as we will need a proper handler.
|
||||
* Until then we will use a handler that just panics but tells us
|
||||
* why.
|
||||
* Initialisation of the vectors will just panic on a data abort.
|
||||
* This just fills in a slighly better one.
|
||||
*/
|
||||
printf("vectors ");
|
||||
data_abort_handler_address = (u_int)data_abort_handler;
|
||||
prefetch_abort_handler_address = (u_int)prefetch_abort_handler;
|
||||
undefined_handler_address = (u_int)undefinedinstruction_bounce;
|
||||
|
||||
/* At last !
|
||||
* We now have the kernel in physical memory from the bottom upwards.
|
||||
* Kernel page tables are physically above this.
|
||||
* The kernel is mapped to KERNEL_TEXT_BASE
|
||||
* The kernel data PTs will handle the mapping of 0xf1000000-0xf3ffffff
|
||||
* The page tables are mapped to 0xefc00000
|
||||
*/
|
||||
|
||||
/* Initialise the undefined instruction handlers */
|
||||
printf("undefined ");
|
||||
undefined_init();
|
||||
|
||||
/* Boot strap pmap telling it where the kernel page table is */
|
||||
printf("pmap ");
|
||||
pmap_bootstrap((pd_entry_t *)kernel_l1pt.pv_va, kernel_ptpt);
|
||||
|
||||
/* Setup the IRQ system */
|
||||
printf("irq ");
|
||||
irq_init();
|
||||
printf("done.\n");
|
||||
|
||||
#ifdef IPKDB
|
||||
/* Initialise ipkdb */
|
||||
ipkdb_init();
|
||||
if (boothowto & RB_KDB)
|
||||
ipkdb_connect(0);
|
||||
#endif
|
||||
|
||||
#ifdef DDB
|
||||
printf("ddb: ");
|
||||
db_machine_init();
|
||||
#if 0
|
||||
ddb_init(end[0], end + 1, esym);
|
||||
#endif
|
||||
|
||||
if (boothowto & RB_KDB)
|
||||
Debugger();
|
||||
#endif
|
||||
|
||||
/* We return the new stack pointer address */
|
||||
return(kernelstack.pv_va + USPACE_SVC_STACK_TOP);
|
||||
}
|
||||
|
||||
void
|
||||
process_kernel_args(args)
|
||||
char *args;
|
||||
{
|
||||
|
||||
boothowto = 0;
|
||||
|
||||
/* Make a local copy of the bootargs */
|
||||
strncpy(bootargs, args, MAX_BOOT_STRING);
|
||||
|
||||
args = bootargs;
|
||||
boot_file = bootargs;
|
||||
|
||||
/* Skip the kernel image filename */
|
||||
while (*args != ' ' && *args != 0)
|
||||
++args;
|
||||
|
||||
if (*args != 0)
|
||||
*args++ = 0;
|
||||
|
||||
while (*args == ' ')
|
||||
++args;
|
||||
|
||||
boot_args = args;
|
||||
|
||||
printf("bootfile: %s\n", boot_file);
|
||||
printf("bootargs: %s\n", boot_args);
|
||||
|
||||
parse_mi_bootargs(boot_args);
|
||||
}
|
||||
|
||||
#if 0
|
||||
void
|
||||
arm32_cachectl(va, len, flags)
|
||||
vm_offset_t va;
|
||||
int len;
|
||||
int flags;
|
||||
{
|
||||
pt_entry_t *ptep, pte;
|
||||
int loop;
|
||||
vm_offset_t addr;
|
||||
|
||||
/* printf("arm32_cachectl(%x,%x,%x)\n", va, len, flags);*/
|
||||
|
||||
if (flags & 1) {
|
||||
addr = va;
|
||||
loop = len;
|
||||
while (loop > 0) {
|
||||
ptep = vtopte(addr & (~PGOFSET));
|
||||
pte = *ptep;
|
||||
|
||||
*ptep = (pte & ~(PT_C | PT_B)) | (flags & (PT_C | PT_B));
|
||||
|
||||
loop -= NBPG;
|
||||
addr += NBPG;
|
||||
}
|
||||
tlb_flush();
|
||||
}
|
||||
|
||||
cpu_cache_purgeD_rng(va, len);
|
||||
}
|
||||
#endif
|
||||
|
||||
extern struct bus_space footbridge_pci_io_bs_tag;
|
||||
extern struct bus_space footbridge_pci_mem_bs_tag;
|
||||
void footbridge_pci_bs_tag_init __P((void));
|
||||
|
||||
void
|
||||
consinit(void)
|
||||
{
|
||||
static int consinit_called = 0;
|
||||
char *console = CONSDEVNAME;
|
||||
|
||||
if (consinit_called != 0)
|
||||
return;
|
||||
|
||||
consinit_called = 1;
|
||||
|
||||
#if NISA > 0
|
||||
/* Initialise the ISA subsystem early ... */
|
||||
isa_netwinder_init(DC21285_PCI_IO_VBASE, DC21285_PCI_ISA_MEM_VBASE);
|
||||
#endif
|
||||
|
||||
footbridge_pci_bs_tag_init();
|
||||
|
||||
if (strncmp(console, "vga", 3) == 0) {
|
||||
#if (NVGA > 0)
|
||||
vga_cnattach(&footbridge_pci_io_bs_tag,
|
||||
&footbridge_pci_mem_bs_tag, - 1, 0);
|
||||
#if (NPCKBC > 0)
|
||||
pckbc_cnattach(&isa_io_bs_tag, IO_KBD, KBCMDP, PCKBC_KBD_SLOT);
|
||||
#endif /* NPCKBC */
|
||||
#else
|
||||
panic("vga console not configured");
|
||||
#endif /* NVGA */
|
||||
} else {
|
||||
#if (NCOM > 0)
|
||||
if (comcnattach(&isa_io_bs_tag, CONCOMADDR, comcnspeed,
|
||||
COM_FREQ, comcnmode))
|
||||
panic("can't init serial console @%x", CONCOMADDR);
|
||||
#else
|
||||
panic("serial console @%x not configured", CONCOMADDR);
|
||||
#endif
|
||||
}
|
||||
}
|
||||
|
||||
static bus_space_handle_t kcom_base = (bus_space_handle_t) (DC21285_PCI_IO_VBASE + CONCOMADDR);
|
||||
|
||||
u_int8_t footbridge_bs_r_1(void *, bus_space_handle_t, bus_size_t);
|
||||
void footbridge_bs_w_1(void *, bus_space_handle_t, bus_size_t, u_int8_t);
|
||||
|
||||
#define KCOM_GETBYTE(r) footbridge_bs_r_1(0, kcom_base, (r))
|
||||
#define KCOM_PUTBYTE(r,v) footbridge_bs_w_1(0, kcom_base, (r), (v))
|
||||
|
||||
static int
|
||||
kcomcngetc(dev_t dev)
|
||||
{
|
||||
int stat, c;
|
||||
|
||||
/* block until a character becomes available */
|
||||
while (!ISSET(stat = KCOM_GETBYTE(com_lsr), LSR_RXRDY))
|
||||
;
|
||||
|
||||
c = KCOM_GETBYTE(com_data);
|
||||
stat = KCOM_GETBYTE(com_iir);
|
||||
return c;
|
||||
}
|
||||
|
||||
/*
|
||||
* Console kernel output character routine.
|
||||
*/
|
||||
static void
|
||||
kcomcnputc(dev_t dev, int c)
|
||||
{
|
||||
int timo;
|
||||
|
||||
/* wait for any pending transmission to finish */
|
||||
timo = 150000;
|
||||
while (!ISSET(KCOM_GETBYTE(com_lsr), LSR_TXRDY) && --timo)
|
||||
continue;
|
||||
|
||||
KCOM_PUTBYTE(com_data, c);
|
||||
|
||||
/* wait for this transmission to complete */
|
||||
timo = 1500000;
|
||||
while (!ISSET(KCOM_GETBYTE(com_lsr), LSR_TXRDY) && --timo)
|
||||
continue;
|
||||
}
|
||||
|
||||
static void
|
||||
kcomcnpollc(dev_t dev, int on)
|
||||
{
|
||||
}
|
||||
|
||||
struct consdev kcomcons = {
|
||||
NULL, NULL, kcomcngetc, kcomcnputc, kcomcnpollc, NULL,
|
||||
NODEV, CN_NORMAL
|
||||
};
|
||||
|
|
@ -0,0 +1,137 @@
|
|||
/* $NetBSD: nwmmu.S,v 1.1 2001/04/19 06:53:59 matt Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2000 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by Matt Thomas <matt@3am-software.com>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
||||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
#incude "assym.h"
|
||||
#include <machine/asm.h>
|
||||
#include <arm/armreg.h>
|
||||
#include <arm/pte.h>
|
||||
|
||||
.text
|
||||
ENTRY_NP(kernel_text_start)
|
||||
|
||||
ASENTRY_NP(nwstart)
|
||||
mov r6, #0x7c000000
|
||||
add r6, r6, #0x3f8
|
||||
mov r3, #0
|
||||
mov r3, #(AP_KRW << AP_SECTION_SHIFT)
|
||||
add r3, r3, #(L1_SECTION|PT_CACHEABLE)
|
||||
mov r2, #0x100000 /* advance by 1MB */
|
||||
mov r1, #0x8000 /* page table start */
|
||||
mov r0, #0x1000 /* page table size */
|
||||
|
||||
L1:
|
||||
str r3, [r1], #0x0004
|
||||
add r3, r3, r2
|
||||
subs r0, r0, #1
|
||||
bgt L1 /* done */
|
||||
|
||||
/*
|
||||
* Page Table now maps 1:1 to physical memory.
|
||||
*/
|
||||
mov r3, #(AP_KRW << AP_SECTION_SHIFT)
|
||||
add r3, r3, #(L1_SECTION|PT_CACHEABLE)
|
||||
mov r2, #0x100000 /* advance by 1MB */
|
||||
mov r1, #0x8000 /* page table start */
|
||||
add r1, r1, #(0x100 * 4) /* offset to 0x100xxxxx */
|
||||
mov r0, #256
|
||||
L2:
|
||||
str r3, [r1], #0x0004 /* 0x10000000-0x1fffffff */
|
||||
add r3, r3, r2
|
||||
subs r0, r0, #1
|
||||
bgt L2
|
||||
/*
|
||||
* 0x10000000-0x1fffffff now maps to 0x00000000-0x0fffffff
|
||||
*/
|
||||
mov r3, #(AP_KRW << AP_SECTION_SHIFT)
|
||||
add r3, r3, #(L1_SECTION|PT_CACHEABLE)
|
||||
mov r1, #0x8000 /* page table start */
|
||||
add r1, r1, #(0xf00 * 4) /* offset to 0xf03xxxxx */
|
||||
mov r0, #64
|
||||
L3:
|
||||
str r3, [r1], #0x0004 /* 0xf000000-0xf03fffff */
|
||||
add r3, r3, r2
|
||||
subs r0, r0, #1
|
||||
bgt L3
|
||||
/*
|
||||
* 0xf0000000-0xf3ffffff now maps to 0x00000000-0x03ffffff
|
||||
*/
|
||||
mov r1, #0x8000 /* page table start */
|
||||
add r1, r1, #(0xfd0 * 4) /* DC21285_PCI_IO_VBASE */
|
||||
add r1, r1, #8
|
||||
mov r3, #(AP_KRW << AP_SECTION_SHIFT)
|
||||
add r3, r3, #L1_SECTION
|
||||
add r3, r3, #0x7c000000 /* DC21285_PCI_IO_BASE */
|
||||
str r3, [r1] /* 0xfd20000-0xfd2fffff */
|
||||
/*
|
||||
* 0xfd200000-0xfd2fffff now maps to 0x7c000000-0x7c0fffff
|
||||
*/
|
||||
|
||||
|
||||
/* set the location of the L1 page table */
|
||||
mov r1, #0x8000
|
||||
mcr 15, 0, r1, c2, c0, 0
|
||||
|
||||
mov r2, #0x2a
|
||||
strb r2, [r6]
|
||||
|
||||
/* set mmu bit (you may want to set other bits as well) */
|
||||
mov r1, #CPU_CONTROL_MMU_ENABLE
|
||||
|
||||
/* fetch current control state */
|
||||
mrc 15, 0, r2, c1, c0, 0
|
||||
orr r2, r2, r1
|
||||
|
||||
/* set new control state */
|
||||
mcr 15, 0, r2, c1, c0, 0
|
||||
|
||||
/* jump to kernel space */
|
||||
add pc, pc, #0xf0000000
|
||||
mov r0, r0
|
||||
mov r0, r0
|
||||
mov r0, r0
|
||||
|
||||
/* emit a char */
|
||||
mov r6, #0
|
||||
add r6, r6, #0xfd200000
|
||||
add r6, r6, #0x3f8
|
||||
mov r2, #0x2a
|
||||
strb r2, [r6]
|
||||
|
||||
mov r0, #0x0200
|
||||
|
||||
/* now startup for real */
|
||||
b start
|
||||
Loading…
Reference in New Issue