File: [local] / sys / arch / aviion / aviion / autoconf.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:08:54 2008 UTC (16 years, 3 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
Import of OpenBSD 4.2 release kernel tree with initial code to support
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO
Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)
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/* $OpenBSD: autoconf.c,v 1.5 2007/06/15 01:19:06 deraadt Exp $ */
/*
* Copyright (c) 1998 Steve Murphree, Jr.
* Copyright (c) 1996 Nivas Madhur
* Copyright (c) 1994 Christian E. Hopps
* 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 Christian E. Hopps.
* 4. The name of the author may not 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 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.
*
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/dkstat.h>
#include <sys/reboot.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/disklabel.h>
#include <sys/kernel.h>
#include <machine/asm_macro.h>
#include <machine/autoconf.h>
#include <machine/cpu.h>
#include <machine/vmparam.h>
#include <scsi/scsi_all.h>
#include <scsi/scsiconf.h>
#include <dev/cons.h>
/*
* The following several variables are related to
* the configuration process, and are used in initializing
* the machine.
*/
void dumpconf(void);
int cold = 1; /* 1 if still booting */
struct device *bootdv; /* set by device drivers (if found) */
u_int bootdevtype;
#define BT_CIEN 0x6369656e
#define BT_DGEN 0x6467656e
#define BT_HKEN 0x686b656e
#define BT_INEN 0x696e656e
#define BT_INSC 0x696e7363
#define BT_NCSC 0x6e637363
/*
* called at boot time, configure all devices on the system.
*/
void
cpu_configure()
{
printf("bootpath: '%s' dev %u unit %u part %u\n",
bootargs, bootdev, bootunit, bootpart);
if (config_rootfound("mainbus", "mainbus") == 0)
panic("no mainbus found");
/*
* Turn external interrupts on.
*/
set_psr(get_psr() & ~PSR_IND);
spl0();
cold = 0;
}
void
diskconf(void)
{
printf("boot device: %s\n",
(bootdv) ? bootdv->dv_xname : "<unknown>");
setroot(bootdv, bootpart, RB_USERREQ);
dumpconf();
}
/*
* Parse the commandline.
*
* This has two goals: first, turn the necessary options into boothowto
* flags; second, convert the PROM boot device into the matching OpenBSD
* driver name.
*/
static char *stws(char *);
static char *
stws(char *p)
{
while (*p != ' ' && *p != '\0')
p++;
while (*p == ' ')
p++;
return (p);
}
void
cmdline_parse(void)
{
char *p;
/*
* Skip boot device ``foo(ctrl,dev,lun)'' and filename,
* i.e. eat everything until whitespace.
*/
p = stws(bootargs);
while (*p != '\0') {
if (*p++ == '-')
switch (*p) {
case 'a':
boothowto |= RB_ASKNAME;
break;
case 'b':
boothowto |= RB_KDB;
break;
case 'c':
boothowto |= RB_CONFIG;
break;
case 's':
boothowto |= RB_SINGLE;
break;
}
p = stws(p);
}
/*
* Now parse the boot device. We are only interested in the
* device type, since the PROM has cracked the controller, unit
* and partition numbers for us already, and we do not care about
* our own filename...
*
* Actually we rely upon the fact that all device strings are
* exactly 4 characters long, and appears at the beginning of the
* commandline, so we can simply use its numerical value, as a
* word, to tell device types apart.
*/
bootdevtype = *(int *)bootargs;
}
void
device_register(struct device *dev, void *aux)
{
if (bootdv != NULL)
return;
switch (bootdevtype) {
case BT_INEN:
/*
* Internal ethernet is le at syscon only, and we do not
* care about controller and unit numbers.
*/
if (strncmp("le", dev->dv_xname, 2) == 0 &&
strncmp("syscon", dev->dv_parent->dv_xname, 6) == 0)
bootdv = dev;
break;
}
}
struct nam2blk nam2blk[] = {
{ "sd", 4 },
{ "cd", 6 },
{ "rd", 7 },
{ NULL, -1 }
};