875e2e9ca9
Without this option it is not possible to omit the driver from the configuration file and successfully build a kernel. This option is specific to alpha.
159 lines
3.8 KiB
C
159 lines
3.8 KiB
C
/* $NetBSD: dec_eb164.c,v 1.26 1998/04/17 02:45:19 mjacob 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/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include "opt_ddb.h"
|
|
#include "opt_dev_sc.h"
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/reboot.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/termios.h>
|
|
#include <sys/bus.h>
|
|
|
|
#include <machine/clock.h>
|
|
#include <machine/cpuconf.h>
|
|
#include <machine/md_var.h>
|
|
#include <machine/rpb.h>
|
|
|
|
#include <alpha/pci/ciavar.h>
|
|
|
|
#ifndef NO_SIO
|
|
#ifndef CONSPEED
|
|
#define CONSPEED TTYDEF_SPEED
|
|
#endif
|
|
static int comcnrate = CONSPEED;
|
|
extern int comconsole;
|
|
extern int siocnattach(int, int);
|
|
extern int siogdbattach(int, int);
|
|
#endif
|
|
|
|
extern int sccnattach(void);
|
|
|
|
void dec_eb164_init(void);
|
|
static void dec_eb164_cons_init(void);
|
|
static void eb164_intr_init(void);
|
|
extern void eb164_intr_enable(int irq);
|
|
extern void eb164_intr_disable(int irq);
|
|
extern void eb164_intr_enable_icsr(int irq);
|
|
extern void eb164_intr_disable_icsr(int irq);
|
|
|
|
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.pci_intr_init = eb164_intr_init;
|
|
platform.pci_intr_map = NULL;
|
|
if (strncmp(platform.model, "Digital AlphaPC 164 ", 20) == 0) {
|
|
platform.pci_intr_disable = eb164_intr_disable_icsr;
|
|
platform.pci_intr_enable = eb164_intr_enable_icsr;
|
|
} else {
|
|
platform.pci_intr_disable = eb164_intr_disable;
|
|
platform.pci_intr_enable = eb164_intr_enable;
|
|
}
|
|
}
|
|
|
|
static void
|
|
dec_eb164_cons_init()
|
|
{
|
|
struct ctb *ctb;
|
|
|
|
cia_init();
|
|
|
|
#ifndef NO_SIO
|
|
#ifdef DDB
|
|
siogdbattach(0x2f8, 57600);
|
|
#endif
|
|
#endif
|
|
|
|
ctb = (struct ctb *)(((caddr_t)hwrpb) + hwrpb->rpb_ctb_off);
|
|
|
|
switch (ctb->ctb_term_type) {
|
|
case 2:
|
|
#ifndef NO_SIO
|
|
/* serial console ... */
|
|
/*
|
|
* Delay to allow PROM putchars to complete.
|
|
* FIFO depth * character time,
|
|
* character time = (1000000 / (defaultrate / 10))
|
|
*/
|
|
DELAY(160000000 / comcnrate);
|
|
|
|
/*
|
|
* Force a comconsole on com1 if the SRM has a serial
|
|
* console.
|
|
*/
|
|
comconsole = 0;
|
|
if (siocnattach(0x3f8, comcnrate))
|
|
panic("can't init serial console");
|
|
|
|
boothowto |= RB_SERIAL;
|
|
#endif
|
|
break;
|
|
|
|
case 3:
|
|
/* display console ... */
|
|
/* XXX */
|
|
#ifdef DEV_SC
|
|
sccnattach();
|
|
#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 %d\n",
|
|
(int)ctb->ctb_term_type);
|
|
}
|
|
}
|
|
|
|
static void
|
|
eb164_intr_init()
|
|
{
|
|
/*
|
|
* Enable ISA-PCI cascade interrupt.
|
|
*/
|
|
eb164_intr_enable(4);
|
|
}
|