File: [local] / sys / arch / alpha / alpha / dec_eb164.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:04:41 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: dec_eb164.c,v 1.14 2006/11/28 16:56:50 dlg Exp $ */
/* $NetBSD: dec_eb164.c,v 1.33 2000/05/22 20:13:32 thorpej Exp $ */
/*
* Copyright (c) 1995, 1996, 1997 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
/*
* Additional Copyright (c) 1997 by Matthew Jacob for NASA/Ames Research Center
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/termios.h>
#include <dev/cons.h>
#include <sys/conf.h>
#include <machine/rpb.h>
#include <machine/autoconf.h>
#include <machine/cpuconf.h>
#include <machine/bus.h>
#include <dev/ic/comreg.h>
#include <dev/ic/comvar.h>
#include <dev/isa/isareg.h>
#include <dev/isa/isavar.h>
#include <dev/ic/i8042reg.h>
#include <dev/ic/pckbcvar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <alpha/pci/ciareg.h>
#include <alpha/pci/ciavar.h>
#include <scsi/scsi_all.h>
#include <scsi/scsiconf.h>
#include <dev/ata/atavar.h>
#include "pckbd.h"
#ifndef CONSPEED
#define CONSPEED TTYDEF_SPEED
#endif
static int comcnrate = CONSPEED;
#define DR_VERBOSE(f) while (0)
void dec_eb164_init(void);
static void dec_eb164_cons_init(void);
static void dec_eb164_device_register(struct device *, void *);
void
dec_eb164_init()
{
platform.family = "EB164";
if ((platform.model = alpha_dsr_sysname()) == NULL) {
/* XXX Don't know the system variations, yet. */
platform.model = alpha_unknown_sysname();
}
platform.iobus = "cia";
platform.cons_init = dec_eb164_cons_init;
platform.device_register = dec_eb164_device_register;
}
static void
dec_eb164_cons_init()
{
struct ctb *ctb;
struct cia_config *ccp;
extern struct cia_config cia_configuration;
ccp = &cia_configuration;
cia_init(ccp, 0);
ctb = (struct ctb *)(((caddr_t)hwrpb) + hwrpb->rpb_ctb_off);
switch (ctb->ctb_term_type) {
case CTB_PRINTERPORT:
/* serial console ... */
/* XXX */
{
/*
* Delay to allow PROM putchars to complete.
* FIFO depth * character time,
* character time = (1000000 / (defaultrate / 10))
*/
DELAY(160000000 / comcnrate);
if(comcnattach(&ccp->cc_iot, 0x3f8, comcnrate,
COM_FREQ,
(TTYDEF_CFLAG & ~(CSIZE | PARENB)) | CS8))
panic("can't init serial console");
break;
}
case CTB_GRAPHICS:
#if NPCKBD > 0
/* display console ... */
/* XXX */
(void) pckbc_cnattach(&ccp->cc_iot, IO_KBD, KBCMDP,
PCKBC_KBD_SLOT);
/*
* On at least LX164, SRM reports an isa video board
* as a pci slot with 0xff as the bus and slot numbers.
* Since these values are not plausible from a pci point
* of view, it is safe to check for them.
*/
if (CTB_TURBOSLOT_TYPE(ctb->ctb_turboslot) ==
CTB_TURBOSLOT_TYPE_ISA ||
(CTB_TURBOSLOT_BUS(ctb->ctb_turboslot) == 0xff &&
CTB_TURBOSLOT_SLOT(ctb->ctb_turboslot) == 0xff))
isa_display_console(&ccp->cc_iot, &ccp->cc_memt);
else
pci_display_console(&ccp->cc_iot, &ccp->cc_memt,
&ccp->cc_pc, CTB_TURBOSLOT_BUS(ctb->ctb_turboslot),
CTB_TURBOSLOT_SLOT(ctb->ctb_turboslot), 0);
#else
panic("not configured to use display && keyboard console");
#endif
break;
default:
printf("ctb->ctb_term_type = 0x%lx\n", ctb->ctb_term_type);
printf("ctb->ctb_turboslot = 0x%lx\n", ctb->ctb_turboslot);
panic("consinit: unknown console type %ld",
ctb->ctb_term_type);
}
}
static void
dec_eb164_device_register(dev, aux)
struct device *dev;
void *aux;
{
static int found, initted, diskboot, netboot;
static struct device *pcidev, *ctrlrdev;
struct bootdev_data *b = bootdev_data;
struct device *parent = dev->dv_parent;
struct cfdata *cf = dev->dv_cfdata;
struct cfdriver *cd = cf->cf_driver;
if (found)
return;
if (!initted) {
diskboot = (strncasecmp(b->protocol, "SCSI", 4) == 0) ||
(strncasecmp(b->protocol, "IDE", 3) == 0);
netboot = (strncasecmp(b->protocol, "BOOTP", 5) == 0) ||
(strncasecmp(b->protocol, "MOP", 3) == 0);
DR_VERBOSE(printf("diskboot = %d, netboot = %d\n", diskboot,
netboot));
initted = 1;
}
if (pcidev == NULL) {
if (strcmp(cd->cd_name, "pci"))
return;
else {
struct pcibus_attach_args *pba = aux;
if ((b->slot / 1000) != pba->pba_bus)
return;
pcidev = dev;
DR_VERBOSE(printf("\npcidev = %s\n", dev->dv_xname));
return;
}
}
if (ctrlrdev == NULL) {
if (parent != pcidev)
return;
else {
struct pci_attach_args *pa = aux;
int slot;
slot = pa->pa_bus * 1000 + pa->pa_function * 100 +
pa->pa_device;
if (b->slot != slot)
return;
if (netboot) {
booted_device = dev;
DR_VERBOSE(printf("\nbooted_device = %s\n",
dev->dv_xname));
found = 1;
} else {
ctrlrdev = dev;
DR_VERBOSE(printf("\nctrlrdev = %s\n",
dev->dv_xname));
}
return;
}
}
if (!diskboot)
return;
if (!strcmp(cd->cd_name, "sd") || !strcmp(cd->cd_name, "st") ||
!strcmp(cd->cd_name, "cd")) {
struct scsi_attach_args *sa = aux;
struct scsi_link *periph = sa->sa_sc_link;
int unit;
if (parent->dv_parent != ctrlrdev)
return;
unit = periph->target * 100 + periph->lun;
if (b->unit != unit)
return;
/* we've found it! */
booted_device = dev;
DR_VERBOSE(printf("\nbooted_device = %s\n", dev->dv_xname));
found = 1;
}
/*
* Support to boot from IDE drives.
*/
if (!strcmp(cd->cd_name, "wd")) {
struct ata_atapi_attach *aa_link = aux;
if ((strncmp("pciide", parent->dv_xname, 6) != 0))
return;
if (parent != ctrlrdev)
return;
DR_VERBOSE(printf("\nAtapi info: drive: %d, channel %d\n",
aa_link->aa_drv_data->drive, aa_link->aa_channel));
DR_VERBOSE(printf("Bootdev info: unit: %d, channel: %d\n",
b->unit, b->channel));
if (b->unit != aa_link->aa_drv_data->drive ||
b->channel != aa_link->aa_channel)
return;
/* we've found it! */
booted_device = dev;
DR_VERBOSE(printf("booted_device = %s\n", dev->dv_xname));
found = 1;
}
}