File: [local] / sys / arch / amd64 / amd64 / mainbus.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:04:59 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)
|
/* $OpenBSD: mainbus.c,v 1.12 2007/05/06 03:37:08 gwk Exp $ */
/* $NetBSD: mainbus.c,v 1.1 2003/04/26 18:39:29 fvdl Exp $ */
/*
* Copyright (c) 1996 Christopher G. Demetriou. 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 Christopher G. Demetriou
* for the NetBSD Project.
* 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/device.h>
#include <machine/bus.h>
#include <dev/isa/isavar.h>
#include <dev/pci/pcivar.h>
#include <dev/isa/isareg.h>
#include "pci.h"
#include "isa.h"
#include "acpi.h"
#include "ipmi.h"
#include "bios.h"
#include <machine/cpuvar.h>
#include <machine/i82093var.h>
#include <machine/mpbiosvar.h>
#if NACPI > 0
#include <dev/acpi/acpireg.h>
#include <dev/acpi/acpivar.h>
#endif
#if NIPMI > 0
#include <dev/ipmivar.h>
#endif
#if NBIOS > 0
#include <machine/biosvar.h>
#endif
int mainbus_match(struct device *, void *, void *);
void mainbus_attach(struct device *, struct device *, void *);
struct cfattach mainbus_ca = {
sizeof(struct device), mainbus_match, mainbus_attach
};
struct cfdriver mainbus_cd = {
NULL, "mainbus", DV_DULL
};
int mainbus_print(void *, const char *);
union mainbus_attach_args {
const char *mba_busname; /* first elem of all */
struct pcibus_attach_args mba_pba;
struct isabus_attach_args mba_iba;
struct cpu_attach_args mba_caa;
struct apic_attach_args aaa_caa;
#if NACPI > 0
struct acpi_attach_args mba_aaa;
#endif
#if NIPMI > 0
struct ipmi_attach_args mba_iaa;
#endif
#if NBIOS > 0
struct bios_attach_args mba_bios;
#endif
};
/*
* This is set when the ISA bus is attached. If it's not set by the
* time it's checked below, then mainbus attempts to attach an ISA.
*/
int isa_has_been_seen;
#if NISA > 0
struct isabus_attach_args mba_iba = {
"isa",
X86_BUS_SPACE_IO, X86_BUS_SPACE_MEM,
#if NISADMA > 0
&isa_bus_dma_tag
#else
NULL
#endif
};
#endif
#if defined(MPBIOS) || defined(MPACPI)
struct mp_bus *mp_busses;
int mp_nbus;
struct mp_intr_map *mp_intrs;
int mp_nintr;
struct mp_bus *mp_isa_bus;
struct mp_bus *mp_eisa_bus;
#ifdef MPVERBOSE
int mp_verbose = 1;
#else
int mp_verbose = 0;
#endif
#endif
/*
* Probe for the mainbus; always succeeds.
*/
int
mainbus_match(struct device *parent, void *match, void *aux)
{
return (1);
}
/*
* Attach the mainbus.
*/
void
mainbus_attach(struct device *parent, struct device *self, void *aux)
{
#if NPCI > 0
union mainbus_attach_args mba;
#endif
#ifdef MPBIOS
int mpbios_present = 0;
#endif
extern void (*setperf_setup)(struct cpu_info *);
printf("\n");
#if NPCI > 0
pci_mode = pci_mode_detect();
#endif
#if NBIOS > 0
{
mba.mba_bios.bios_dev = "bios";
mba.mba_bios.bios_iot = X86_BUS_SPACE_IO;
mba.mba_bios.bios_memt = X86_BUS_SPACE_MEM;
config_found(self, &mba.mba_bios, mainbus_print);
}
#endif
#if NACPI > 0
#if NPCI > 0
if (pci_mode != 0)
#endif
{
memset(&mba.mba_aaa, 0, sizeof(mba.mba_aaa));
mba.mba_aaa.aaa_name = "acpi";
mba.mba_aaa.aaa_iot = X86_BUS_SPACE_IO;
mba.mba_aaa.aaa_memt = X86_BUS_SPACE_MEM;
config_found(self, &mba.mba_aaa, mainbus_print);
}
#endif
#if NIPMI > 0
{
memset(&mba.mba_iaa, 0, sizeof(mba.mba_iaa));
mba.mba_iaa.iaa_name = "ipmi";
mba.mba_iaa.iaa_iot = X86_BUS_SPACE_IO;
mba.mba_iaa.iaa_memt = X86_BUS_SPACE_MEM;
if (ipmi_probe(&mba.mba_iaa))
config_found(self, &mba.mba_iaa, mainbus_print);
}
#endif
#ifdef MPBIOS
mpbios_present = mpbios_probe(self);
#endif
#ifdef MPBIOS
if (mpbios_present)
mpbios_scan(self);
else
#endif
if ((cpu_info_primary.ci_flags & CPUF_PRESENT) == 0) {
struct cpu_attach_args caa;
memset(&caa, 0, sizeof(caa));
caa.caa_name = "cpu";
caa.cpu_number = 0;
caa.cpu_role = CPU_ROLE_SP;
caa.cpu_func = 0;
config_found(self, &caa, mainbus_print);
}
#if NACPI > 0
if (!acpi_hasprocfvs)
#endif
{
if (setperf_setup != NULL)
setperf_setup(&cpu_info_primary);
}
#ifdef MULTIPROCESSOR
mp_setperf_init();
#endif
#if NPCI > 0
if (pci_mode != 0) {
mba.mba_pba.pba_busname = "pci";
mba.mba_pba.pba_iot = X86_BUS_SPACE_IO;
mba.mba_pba.pba_memt = X86_BUS_SPACE_MEM;
mba.mba_pba.pba_dmat = &pci_bus_dma_tag;
mba.mba_pba.pba_domain = pci_ndomains++;
mba.mba_pba.pba_bus = 0;
mba.mba_pba.pba_bridgetag = NULL;
mba.mba_pba.pba_pc = NULL;
config_found(self, &mba.mba_pba, mainbus_print);
}
#endif
#if NISA > 0
if (isa_has_been_seen == 0)
config_found(self, &mba_iba, mainbus_print);
#endif
}
int
mainbus_print(void *aux, const char *pnp)
{
union mainbus_attach_args *mba = aux;
if (pnp)
printf("%s at %s", mba->mba_busname, pnp);
if (strcmp(mba->mba_busname, "pci") == 0)
printf(" bus %d", mba->mba_pba.pba_bus);
return (UNCONF);
}