File: [local] / sys / arch / i386 / stand / libsa / exec_i386.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:06:03 2008 UTC (16 years, 4 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)
|
/* $OpenBSD: exec_i386.c,v 1.32 2007/07/27 17:46:56 tom Exp $ */
/*
* Copyright (c) 1997-1998 Michael Shalayeff
* Copyright (c) 1997 Tobias Weingartner
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 REGENTS 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.
*
*/
#include <sys/param.h>
#include <dev/cons.h>
#include <stand/boot/bootarg.h>
#include <machine/biosvar.h>
#include <sys/disklabel.h>
#include "disk.h"
#include "libsa.h"
#include <lib/libsa/loadfile.h>
typedef void (*startfuncp)(int, int, int, int, int, int, int, int)
__attribute__ ((noreturn));
char *bootmac = NULL;
void
run_loadfile(u_long *marks, int howto)
{
u_long entry;
#ifndef _TEST
dev_t bootdev = bootdev_dip->bootdev;
size_t ac = BOOTARG_LEN;
caddr_t av = (caddr_t)BOOTARG_OFF;
bios_consdev_t cd;
extern int com_speed; /* from bioscons.c */
if (sa_cleanup != NULL)
(*sa_cleanup)();
cd.consdev = cn_tab->cn_dev;
cd.conspeed = com_speed;
addbootarg(BOOTARG_CONSDEV, sizeof(cd), &cd);
if (bootmac != NULL)
addbootarg(BOOTARG_BOOTMAC, sizeof(bios_bootmac_t), bootmac);
/* Pass memory map to the kernel */
mem_pass();
makebootargs(av, &ac);
entry = marks[MARK_ENTRY] & 0x0fffffff;
printf("entry point at 0x%x\n", (int) entry);
/* stack and the gung is ok at this point, so, no need for asm setup */
(*(startfuncp)entry)(howto, bootdev, BOOTARG_APIVER,
marks[MARK_END], extmem, cnvmem, ac, (int)av);
/* not reached */
#endif
}