File: [local] / sys / arch / mvme88k / mvme88k / autoconf.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:04:33 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 1.39 2007/06/15 01:19:08 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> /* enable/disable interrupts */
#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 get_target(int *, int *, int *);
int cold = 1; /* 1 if still booting */
paddr_t bootaddr;
int bootpart, bootbus;
struct device *bootdv; /* set by device drivers (if found) */
/*
* called at boot time, configure all devices on the system.
*/
void
cpu_configure()
{
if (config_rootfound("mainbus", "mainbus") == 0)
panic("no mainbus found");
/*
* Turn external interrupts on.
*
* XXX We have a race here. If we enable interrupts after setroot(),
* the kernel dies.
*/
set_psr(get_psr() & ~PSR_IND);
spl0();
/*
* Finally switch to the real console driver,
* and say goodbye to the BUG!
*/
cn_tab = NULL;
cninit();
cold = 0;
}
void
diskconf(void)
{
printf("boot device: %s\n",
(bootdv) ? bootdv->dv_xname : "<unknown>");
setroot(bootdv, bootpart, RB_USERREQ);
dumpconf();
}
void
device_register(struct device *dev, void *aux)
{
if (bootpart == -1) /* ignore flag from controller driver? */
return;
/*
* scsi: sd,cd
*/
if (strncmp("cd", dev->dv_xname, 2) == 0 ||
strncmp("sd", dev->dv_xname, 2) == 0) {
struct scsi_attach_args *sa = aux;
int target, bus, lun;
if (get_target(&target, &bus, &lun) != 0)
return;
/* make sure we are on the expected scsibus */
if (bootbus != bus)
return;
if (sa->sa_sc_link->target == target &&
sa->sa_sc_link->lun == lun) {
bootdv = dev;
return;
}
}
/*
* ethernet: ie,le
*/
else if (strncmp("ie", dev->dv_xname, 2) == 0 ||
strncmp("le", dev->dv_xname, 2) == 0) {
struct confargs *ca = aux;
if (ca->ca_paddr == bootaddr) {
bootdv = dev;
return;
}
}
}
/*
* Returns the ID of the SCSI disk based on Motorola's CLUN/DLUN stuff
* bootdev == CLUN << 8 | DLUN.
* This handles SBC SCSI and MVME32[78].
*/
int
get_target(int *target, int *bus, int *lun)
{
extern int bootdev;
switch (bootdev >> 8) {
/* built-in controller */
case 0x00:
/* MVME327 */
case 0x02:
case 0x03:
*bus = 0;
*target = (bootdev & 0x70) >> 4;
*lun = (bootdev & 0x07);
return (0);
/* MVME328 */
case 0x06:
case 0x07:
case 0x16:
case 0x17:
case 0x18:
case 0x19:
*bus = (bootdev & 0x40) >> 6;
*target = (bootdev & 0x38) >> 3;
*lun = (bootdev & 0x07);
return (0);
default:
return (ENODEV);
}
}
struct nam2blk nam2blk[] = {
{ "sd", 4 },
{ "cd", 6 },
{ "rd", 7 },
{ NULL, -1 }
};