File: [local] / sys / arch / mvme68k / mvme68k / pmap_bootstrap.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:07:37 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: pmap_bootstrap.c,v 1.22 2006/05/19 22:51:09 miod Exp $ */
/*
* Copyright (c) 1995 Theo de Raadt
* Copyright (c) 1999 Steve Murphree, Jr. (68060 support)
*
* 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 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.
*
* Copyright (c) 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* 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. Neither the name of the University 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 REGENTS 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 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.
*
* @(#)pmap_bootstrap.c 8.1 (Berkeley) 6/10/93
*/
#include <sys/param.h>
#include <sys/msgbuf.h>
#include <machine/cpu.h>
#include <machine/frame.h>
#include <machine/pte.h>
#include <machine/vmparam.h>
#include <uvm/uvm_extern.h>
vaddr_t iiomapbase;
int iiomapsize;
#define ETHERPAGES 16
void *etherbuf;
int etherlen;
extern vaddr_t extiobase;
extern int physmem;
#define RELOC(v, t) *((t*)((u_int)&(v) + firstpa))
#define PA2VA(v, t) *((t*)((u_int)&(v)))
#define MACHINE_IIOMAPSIZE RELOC(iiomapsize, vaddr_t)
#define MACHINE_INTIOBASE RELOC(iiomapbase, vaddr_t)
#define MACHINE_EIOMAPSIZE EIOMAPSIZE
#define PMAP_MD_LOCALS /* nothing */
#define PMAP_MD_RELOC1() \
do { \
RELOC(etherbuf, void *) = (void *)nextpa; \
nextpa += ETHERPAGES * NBPG; \
} while (0)
#define PMAP_MD_MAPIOSPACE() \
do { \
pte = &((u_int *)kptpa)[atop((vaddr_t)etherbuf)]; \
epte = pte + ETHERPAGES; \
while (pte < epte) { \
*pte = (*pte & ~PG_CMASK) | PG_CIS | PG_U; \
pte++; \
} \
RELOC(etherlen, int) = ETHERPAGES * NBPG; \
} while (0)
/*
* intiobase, intiolimit: base and end of internal IO space.
* MACHINE_IIOMAPSIZE pages prior to external IO space at end of
* static kernel page table.
* extiobase: base of external IO space.
* MACHINE_EIOMAPSIZE pages at the end of the static kernel page table.
*/
#define PMAP_MD_RELOC2() \
do { \
RELOC(intiobase, vaddr_t) = (vaddr_t)iiobase; \
RELOC(intiolimit, vaddr_t) = (vaddr_t)eiobase; \
RELOC(extiobase, vaddr_t) = (vaddr_t)eiobase; \
} while (0)
#define PMAP_MD_MEMSIZE() \
do { \
RELOC(avail_end, paddr_t) = ptoa(RELOC(physmem, int)) - \
(round_page(MSGBUFSIZE) + ptoa(1)); \
} while (0)
#define PMAP_MD_RELOC3() /* nothing */
#include <m68k/m68k/pmap_bootstrap.c>
void
pmap_init_md()
{
vaddr_t addr;
/*
* mark as unavailable the regions which we have mapped in
* pmap_bootstrap().
*/
addr = intiobase;
if (uvm_map(kernel_map, &addr, ptoa(iiomapsize + EIOMAPSIZE),
NULL, UVM_UNKNOWN_OFFSET, 0,
UVM_MAPFLAG(UVM_PROT_NONE, UVM_PROT_NONE,
UVM_INH_NONE, UVM_ADV_RANDOM, UVM_FLAG_FIXED)))
panic("pmap_init: bogons in the VM system!");
}