File: [local] / sys / arch / vax / vax / bus_mem.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:08:45 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: bus_mem.c,v 1.4 2001/11/06 19:53:17 miod Exp $ */
/* $NetBSD: bus_mem.c,v 1.8 2000/06/29 07:14:23 mrg Exp $ */
/*
* Copyright (c) 1998 Matt Thomas
* 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.
*/
#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/pmap.h>
#include <machine/bus.h>
#include <machine/intr.h>
static int
vax_mem_bus_space_map(
void *t,
bus_addr_t pa,
bus_size_t size,
int cacheable,
bus_space_handle_t *bshp,
int f2)
{
vaddr_t va;
size += (pa & VAX_PGOFSET); /* have to include the byte offset */
va = uvm_km_valloc(kernel_map, size);
if (va == 0)
return (ENOMEM);
*bshp = (bus_space_handle_t)(va + (pa & VAX_PGOFSET));
ioaccess(va, pa, (size + VAX_NBPG - 1) >> VAX_PGSHIFT);
return 0;
}
static int
vax_mem_bus_space_subregion(
void *t,
bus_space_handle_t h,
bus_size_t o,
bus_size_t s,
bus_space_handle_t *hp)
{
*hp = h + o;
return (0);
}
static void
vax_mem_bus_space_unmap(
void *t,
bus_space_handle_t h,
bus_size_t size,
int f)
{
u_long va = trunc_page(h);
u_long endva = round_page(h + size);
/*
* Free the kernel virtual mapping.
*/
iounaccess(va, size >> VAX_PGSHIFT);
uvm_km_free(kernel_map, va, endva - va);
}
static int
vax_mem_bus_space_alloc(
void *t,
bus_addr_t rs,
bus_addr_t re,
bus_size_t s,
bus_size_t a,
bus_size_t b,
int f,
bus_addr_t *ap,
bus_space_handle_t *hp)
{
panic("vax_mem_bus_alloc not implemented");
}
static void
vax_mem_bus_space_free(
void *t,
bus_space_handle_t h,
bus_size_t s)
{
panic("vax_mem_bus_free not implemented");
}
struct vax_bus_space vax_mem_bus_space = {
NULL,
vax_mem_bus_space_map,
vax_mem_bus_space_unmap,
vax_mem_bus_space_subregion,
vax_mem_bus_space_alloc,
vax_mem_bus_space_free
};