File: [local] / sys / arch / vax / vax / vxt.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:08:49 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: vxt.c,v 1.1 2006/08/27 16:55:41 miod Exp $ */
/*
* Copyright (c) 1998 Ludd, University of Lule}, Sweden.
* All rights reserved.
*
* This code is derived from software contributed to Ludd by Bertram Barth.
*
* 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 at Ludd, University of
* Lule}, Sweden and its contributors.
* 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.
*/
/*** needs to be completed MK-990306 ***/
#include <sys/param.h>
#include <sys/types.h>
#include <sys/device.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <uvm/uvm_extern.h>
#include <machine/cpu.h>
#include <machine/mtpr.h>
#include <machine/ka48.h>
#include <machine/clock.h>
static void vxt_conf(void);
static void vxt_steal_pages(void);
static void vxt_memerr(void);
static int vxt_mchk(caddr_t);
static void vxt_halt(void);
static void vxt_reboot(int);
static void vxt_cache_enable(void);
struct vs_cpu *vxt_cpu;
/*
* Declaration of vxt-specific calls.
*/
struct cpu_dep vxt_calls = {
vxt_steal_pages,
vxt_mchk,
vxt_memerr,
vxt_conf,
missing_clkread,
missing_clkwrite,
6, /* ~VUPS */
2, /* SCB pages */
vxt_halt,
vxt_reboot,
};
void
vxt_conf()
{
printf("cpu: KA48\n");
}
void
vxt_cache_enable()
{
int i, *tmp;
long *par_ctl = (long *)KA48_PARCTL;
/* Disable cache */
mtpr(0, PR_CADR); /* disable */
*par_ctl &= ~KA48_PARCTL_INVENA; /* clear ? invalid enable */
mtpr(2, PR_CADR); /* flush */
/* Clear caches */
tmp = (void *)KA48_INVFLT; /* inv filter */
for (i = 0; i < KA48_INVFLTSZ / sizeof(int); i++)
tmp[i] = 0;
*par_ctl |= KA48_PARCTL_INVENA; /* Enable ???? */
mtpr(4, PR_CADR); /* enable cache */
*par_ctl |= (KA48_PARCTL_AGS | /* AGS? */
KA48_PARCTL_NPEN | /* N? Parity Enable */
KA48_PARCTL_CPEN); /* Cpu parity enable */
}
void
vxt_memerr()
{
printf("Memory err!\n");
}
int
vxt_mchk(addr)
caddr_t addr;
{
panic("Machine check");
return 0;
}
void
vxt_steal_pages()
{
/* Turn on caches (to speed up execution a bit) */
vxt_cache_enable();
}
static void
vxt_halt()
{
asm("halt");
}
static void
vxt_reboot(arg)
int arg;
{
asm("halt");
}