File: [local] / sys / arch / alpha / alpha / dec_kn300.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:04:43 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: dec_kn300.c,v 1.2 2007/03/21 22:10:57 martin Exp $ */
/* $NetBSD: dec_kn300.c,v 1.34 2007/03/04 15:18:10 yamt Exp $ */
/*
* Copyright (c) 1998 by Matthew Jacob
* NASA AMES Research Center.
* 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 immediately at the beginning of the file, without modification,
* 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. 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 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 AUTHOR 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.
*/
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/termios.h>
#include <sys/conf.h>
#include <dev/cons.h>
#include <machine/rpb.h>
#include <machine/autoconf.h>
#include <machine/frame.h>
#include <machine/cpuconf.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/mcbus/mcbusreg.h>
#include <alpha/mcbus/mcbusvar.h>
#include <alpha/pci/mcpciareg.h>
#include <alpha/pci/mcpciavar.h>
#include <alpha/pci/pci_kn300.h>
#include <scsi/scsi_all.h>
#include <scsi/scsiconf.h>
#include "pckbd.h"
#ifndef CONSPEED
#define CONSPEED TTYDEF_SPEED
#endif
static int comcnrate = CONSPEED;
#ifdef DEBUG
int bootdev_debug;
#define DPRINTF(x) if (bootdev_debug) printf x
#else
#define DPRINTF(x)
#endif
void dec_kn300_init (void);
void dec_kn300_cons_init (void);
static void dec_kn300_device_register (struct device *, void *);
#ifdef KGDB
#include <machine/db_machdep.h>
static const char *kgdb_devlist[] = {
"com",
NULL,
};
#endif /* KGDB */
#define ALPHASERVER_4100 "AlphaServer 4100"
const struct alpha_variation_table dec_kn300_variations[] = {
{ 0, ALPHASERVER_4100 },
{ 0, NULL },
};
void
dec_kn300_init()
{
u_int64_t variation;
int cachesize;
platform.family = ALPHASERVER_4100;
if ((platform.model = alpha_dsr_sysname()) == NULL) {
variation = hwrpb->rpb_variation & SV_ST_MASK;
if ((platform.model = alpha_variation_name(variation,
dec_kn300_variations)) == NULL)
platform.model = alpha_unknown_sysname();
}
platform.iobus = "mcbus";
platform.cons_init = dec_kn300_cons_init;
platform.device_register = dec_kn300_device_register;
/*
* Determine B-cache size by looking at the primary (console)
* MCPCIA's WHOAMI register.
*/
mcpcia_init();
if (mcbus_primary.mcbus_valid) {
switch (mcbus_primary.mcbus_bcache) {
default:
case CPU_BCache_0MB:
/* No B-cache or invalid; default to 1MB. */
/* FALLTHROUGH */
case CPU_BCache_1MB:
cachesize = (1 * 1024 * 1024);
break;
case CPU_BCache_2MB:
cachesize = (2 * 1024 * 1024);
break;
case CPU_BCache_4MB:
cachesize = (4 * 1024 * 1024);
break;
}
} else {
/* Default to 1MB. */
cachesize = (1 * 1024 * 1024);
}
}
void
dec_kn300_cons_init()
{
struct ctb *ctb;
struct mcpcia_config *ccp;
extern struct mcpcia_config mcpcia_console_configuration;
ccp = &mcpcia_console_configuration;
/* It's already initialized. */
ctb = (struct ctb *)(((char *)hwrpb) + hwrpb->rpb_ctb_off);
switch (ctb->ctb_term_type) {
case CTB_PRINTERPORT:
/* serial console ... */
/*
* 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);
if (CTB_TURBOSLOT_TYPE(ctb->ctb_turboslot) ==
CTB_TURBOSLOT_TYPE_ISA)
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);
}
#ifdef KGDB
/* Attach the KGDB device. */
alpha_kgdb_init(kgdb_devlist, &ccp->cc_iot);
#endif /* KGDB */
}
static void
dec_kn300_device_register(dev, aux)
struct device *dev;
void *aux;
{
static int found, initted, diskboot, netboot;
static struct device *primarydev, *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);
netboot = (strncasecmp(b->protocol, "BOOTP", 5) == 0) ||
(strncasecmp(b->protocol, "MOP", 3) == 0);
DPRINTF(("proto:%s bus:%d slot:%d chan:%d", b->protocol,
b->bus, b->slot, b->channel));
if (b->remote_address)
printf(" remote_addr:%s", b->remote_address);
DPRINTF((" un:%d bdt:%d", b->unit, b->boot_dev_type));
if (b->ctrl_dev_type)
DPRINTF((" cdt:%s\n", b->ctrl_dev_type));
else
DPRINTF(("\n"));
DPRINTF(("diskboot = %d, netboot = %d\n", diskboot, netboot));
initted = 1;
}
if (primarydev == NULL) {
if (strcmp(cd->cd_name, "mcpcia"))
return;
else {
struct mcbus_dev_attach_args *ma = aux;
if (b->bus != ma->ma_mid - 4)
return;
primarydev = dev;
DPRINTF(("\nprimarydev = %s\n", dev->dv_xname));
return;
}
}
if (pcidev == NULL) {
if (strcmp(cd->cd_name, "pci"))
return;
/*
* Try to find primarydev anywhere in the ancestry. This is
* necessary if the PCI bus is hidden behind a bridge.
*/
else {
struct pcibus_attach_args *pba = aux;
if ((b->slot / 1000) != pba->pba_bus)
return;
pcidev = dev;
DPRINTF(("\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;
DPRINTF(("\nbooted_device = %s\n", dev->dv_xname));
found = 1;
} else {
ctrlrdev = dev;
DPRINTF(("\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;
DPRINTF(("\nbooted_device = %s\n", dev->dv_xname));
found = 1;
}
}