mirror of
https://github.com/freebsd/freebsd-src
synced 2024-11-05 18:22:52 +00:00
bc1b1dad36
EISA adapters. This could have caused the system to find the wrong root disk. Reviewed by: J Wunsch <j@ida.interface-business.de>
474 lines
11 KiB
C
474 lines
11 KiB
C
/*
|
|
* Product specific probe and attach routines for:
|
|
* 27/284X and aic7770 motherboard SCSI controllers
|
|
*
|
|
* Copyright (c) 1994, 1995, 1996, 1997, 1998 Justin T. Gibbs.
|
|
* 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. 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.
|
|
*
|
|
* $Id: ahc_eisa.c,v 1.2 1998/10/09 17:42:28 gibbs Exp $
|
|
*/
|
|
|
|
#include "eisa.h"
|
|
#if NEISA > 0
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
|
|
#include <machine/bus_pio.h>
|
|
#include <machine/bus.h>
|
|
|
|
#include <i386/eisa/eisaconf.h>
|
|
|
|
#include <cam/cam.h>
|
|
#include <cam/cam_ccb.h>
|
|
#include <cam/cam_sim.h>
|
|
#include <cam/scsi/scsi_all.h>
|
|
|
|
#include <dev/aic7xxx/aic7xxx.h>
|
|
#include <dev/aic7xxx/93cx6.h>
|
|
|
|
#include <aic7xxx_reg.h>
|
|
|
|
#define EISA_DEVICE_ID_ADAPTEC_AIC7770 0x04907770
|
|
#define EISA_DEVICE_ID_ADAPTEC_274x 0x04907771
|
|
#define EISA_DEVICE_ID_ADAPTEC_284xB 0x04907756 /* BIOS enabled */
|
|
#define EISA_DEVICE_ID_ADAPTEC_284x 0x04907757 /* BIOS disabled*/
|
|
|
|
#define AHC_EISA_SLOT_OFFSET 0xc00
|
|
#define AHC_EISA_IOSIZE 0x100
|
|
#define INTDEF 0x5cul /* Interrupt Definition Register */
|
|
|
|
static int aic7770probe(void);
|
|
static int aic7770_attach(struct eisa_device *e_dev);
|
|
static void aha2840_load_seeprom(struct ahc_softc *ahc);
|
|
|
|
static struct eisa_driver ahc_eisa_driver =
|
|
{
|
|
"ahc",
|
|
aic7770probe,
|
|
aic7770_attach,
|
|
/*shutdown*/NULL,
|
|
&ahc_unit
|
|
};
|
|
|
|
DATA_SET (eisadriver_set, ahc_eisa_driver);
|
|
|
|
static const char *aic7770_match(eisa_id_t type);
|
|
|
|
static const char*
|
|
aic7770_match(type)
|
|
eisa_id_t type;
|
|
{
|
|
switch (type) {
|
|
case EISA_DEVICE_ID_ADAPTEC_AIC7770:
|
|
return ("Adaptec aic7770 SCSI host adapter");
|
|
break;
|
|
case EISA_DEVICE_ID_ADAPTEC_274x:
|
|
return ("Adaptec 274X SCSI host adapter");
|
|
break;
|
|
case EISA_DEVICE_ID_ADAPTEC_284xB:
|
|
case EISA_DEVICE_ID_ADAPTEC_284x:
|
|
return ("Adaptec 284X SCSI host adapter");
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return (NULL);
|
|
}
|
|
|
|
static int
|
|
aic7770probe(void)
|
|
{
|
|
u_int32_t iobase;
|
|
u_int32_t irq;
|
|
u_int8_t intdef;
|
|
u_int8_t hcntrl;
|
|
struct eisa_device *e_dev;
|
|
int count;
|
|
|
|
e_dev = NULL;
|
|
count = 0;
|
|
while ((e_dev = eisa_match_dev(e_dev, aic7770_match))) {
|
|
iobase = (e_dev->ioconf.slot * EISA_SLOT_SIZE)
|
|
+ AHC_EISA_SLOT_OFFSET;
|
|
|
|
/* Pause the card preseving the IRQ type */
|
|
hcntrl = inb(iobase + HCNTRL) & IRQMS;
|
|
|
|
outb(iobase + HCNTRL, hcntrl | PAUSE);
|
|
|
|
eisa_add_iospace(e_dev, iobase, AHC_EISA_IOSIZE, RESVADDR_NONE);
|
|
intdef = inb(INTDEF + iobase);
|
|
irq = intdef & 0xf;
|
|
switch (irq) {
|
|
case 9:
|
|
case 10:
|
|
case 11:
|
|
case 12:
|
|
case 14:
|
|
case 15:
|
|
break;
|
|
default:
|
|
printf("aic7770 at slot %d: illegal "
|
|
"irq setting %d\n", e_dev->ioconf.slot,
|
|
intdef);
|
|
irq = 0;
|
|
break;
|
|
}
|
|
if (irq == 0)
|
|
continue;
|
|
eisa_add_intr(e_dev, irq);
|
|
eisa_registerdev(e_dev, &ahc_eisa_driver);
|
|
count++;
|
|
}
|
|
return count;
|
|
}
|
|
|
|
static int
|
|
aic7770_attach(struct eisa_device *e_dev)
|
|
{
|
|
ahc_chip chip;
|
|
|
|
struct ahc_softc *ahc;
|
|
resvaddr_t *iospace;
|
|
int unit = e_dev->unit;
|
|
int irq;
|
|
int error;
|
|
|
|
if (TAILQ_FIRST(&e_dev->ioconf.irqs) == NULL)
|
|
return (-1);
|
|
|
|
irq = TAILQ_FIRST(&e_dev->ioconf.irqs)->irq_no;
|
|
|
|
iospace = e_dev->ioconf.ioaddrs.lh_first;
|
|
|
|
if (!iospace)
|
|
return -1;
|
|
|
|
switch (e_dev->id) {
|
|
case EISA_DEVICE_ID_ADAPTEC_274x:
|
|
case EISA_DEVICE_ID_ADAPTEC_AIC7770:
|
|
chip = AHC_AIC7770|AHC_EISA;
|
|
break;
|
|
case EISA_DEVICE_ID_ADAPTEC_284xB:
|
|
case EISA_DEVICE_ID_ADAPTEC_284x:
|
|
chip = AHC_AIC7770|AHC_VL;
|
|
break;
|
|
default:
|
|
printf("aic7770_attach: Unknown device type!\n");
|
|
return -1;
|
|
break;
|
|
}
|
|
|
|
if (!(ahc = ahc_alloc(unit, iospace->addr, NULL,
|
|
chip, AHC_AIC7770_FE, AHC_FNONE, NULL)))
|
|
return -1;
|
|
|
|
ahc->channel = 'A';
|
|
ahc->channel_b = 'B';
|
|
/* XXX Should be a child of the EISA bus dma tag */
|
|
error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/0,
|
|
/*boundary*/0,
|
|
/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
|
|
/*highaddr*/BUS_SPACE_MAXADDR,
|
|
/*filter*/NULL, /*filterarg*/NULL,
|
|
/*maxsize*/MAXBSIZE,
|
|
/*nsegments*/AHC_NSEG,
|
|
/*maxsegsz*/AHC_MAXTRANSFER_SIZE,
|
|
/*flags*/BUS_DMA_ALLOCNOW, &ahc->dmat);
|
|
|
|
if (error != 0) {
|
|
printf("%s: Could not allocate DMA tag - error %d\n",
|
|
ahc_name(ahc), error);
|
|
ahc_free(ahc);
|
|
return -1;
|
|
}
|
|
|
|
|
|
eisa_reg_start(e_dev);
|
|
if (eisa_reg_iospace(e_dev, iospace)) {
|
|
ahc_free(ahc);
|
|
return -1;
|
|
}
|
|
|
|
if (ahc_reset(ahc) != 0) {
|
|
ahc_free(ahc);
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* The IRQMS bit enables level sensitive interrupts. Only allow
|
|
* IRQ sharing if it's set.
|
|
*/
|
|
if (eisa_reg_intr(e_dev, irq, ahc_intr, (void *)ahc, &cam_imask,
|
|
/*shared ==*/ahc->pause & IRQMS)) {
|
|
ahc_free(ahc);
|
|
return -1;
|
|
}
|
|
eisa_reg_end(e_dev);
|
|
|
|
/*
|
|
* Tell the user what type of interrupts we're using.
|
|
* usefull for debugging irq problems
|
|
*/
|
|
if (bootverbose) {
|
|
printf("%s: Using %s Interrupts\n",
|
|
ahc_name(ahc),
|
|
ahc->pause & IRQMS ?
|
|
"Level Sensitive" : "Edge Triggered");
|
|
}
|
|
|
|
/*
|
|
* Now that we know we own the resources we need, do the
|
|
* card initialization.
|
|
*
|
|
* First, the aic7770 card specific setup.
|
|
*/
|
|
switch (chip & (AHC_EISA|AHC_VL)) {
|
|
case AHC_EISA:
|
|
{
|
|
u_int biosctrl;
|
|
u_int scsiconf;
|
|
u_int scsiconf1;
|
|
#if DEBUG
|
|
int i;
|
|
#endif
|
|
|
|
biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL);
|
|
scsiconf = ahc_inb(ahc, SCSICONF);
|
|
scsiconf1 = ahc_inb(ahc, SCSICONF + 1);
|
|
|
|
#if DEBUG
|
|
for (i = TARG_SCSIRATE; i <= HA_274_BIOSCTRL; i+=8) {
|
|
printf("0x%x, 0x%x, 0x%x, 0x%x, "
|
|
"0x%x, 0x%x, 0x%x, 0x%x\n",
|
|
ahc_inb(ahc, i),
|
|
ahc_inb(ahc, i+1),
|
|
ahc_inb(ahc, i+2),
|
|
ahc_inb(ahc, i+3),
|
|
ahc_inb(ahc, i+4),
|
|
ahc_inb(ahc, i+5),
|
|
ahc_inb(ahc, i+6),
|
|
ahc_inb(ahc, i+7));
|
|
}
|
|
#endif
|
|
|
|
/* Get the primary channel information */
|
|
if ((biosctrl & CHANNEL_B_PRIMARY) != 0)
|
|
ahc->flags |= AHC_CHANNEL_B_PRIMARY;
|
|
|
|
if ((biosctrl & BIOSMODE) == BIOSDISABLED) {
|
|
ahc->flags |= AHC_USEDEFAULTS;
|
|
} else {
|
|
if ((ahc->features & AHC_WIDE) != 0) {
|
|
ahc->our_id = scsiconf1 & HWSCSIID;
|
|
if (scsiconf & TERM_ENB)
|
|
ahc->flags |= AHC_TERM_ENB_A;
|
|
} else {
|
|
ahc->our_id = scsiconf & HSCSIID;
|
|
ahc->our_id_b = scsiconf1 & HSCSIID;
|
|
if (scsiconf & TERM_ENB)
|
|
ahc->flags |= AHC_TERM_ENB_A;
|
|
if (scsiconf1 & TERM_ENB)
|
|
ahc->flags |= AHC_TERM_ENB_B;
|
|
}
|
|
}
|
|
/*
|
|
* We have no way to tell, so assume extended
|
|
* translation is enabled.
|
|
*/
|
|
ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B;
|
|
break;
|
|
}
|
|
case AHC_VL:
|
|
{
|
|
aha2840_load_seeprom(ahc);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* See if we have a Rev E or higher aic7770. Anything below a
|
|
* Rev E will have a R/O autoflush disable configuration bit.
|
|
*/
|
|
{
|
|
char *id_string;
|
|
u_int8_t sblkctl;
|
|
u_int8_t sblkctl_orig;
|
|
|
|
sblkctl_orig = ahc_inb(ahc, SBLKCTL);
|
|
sblkctl = sblkctl_orig ^ AUTOFLUSHDIS;
|
|
ahc_outb(ahc, SBLKCTL, sblkctl);
|
|
sblkctl = ahc_inb(ahc, SBLKCTL);
|
|
if (sblkctl != sblkctl_orig) {
|
|
id_string = "aic7770 >= Rev E, ";
|
|
/*
|
|
* Ensure autoflush is enabled
|
|
*/
|
|
sblkctl &= ~AUTOFLUSHDIS;
|
|
ahc_outb(ahc, SBLKCTL, sblkctl);
|
|
|
|
} else
|
|
id_string = "aic7770 <= Rev C, ";
|
|
|
|
printf("%s: %s", ahc_name(ahc), id_string);
|
|
}
|
|
|
|
/* Setup the FIFO threshold and the bus off time */
|
|
{
|
|
u_int8_t hostconf = ahc_inb(ahc, HOSTCONF);
|
|
ahc_outb(ahc, BUSSPD, hostconf & DFTHRSH);
|
|
ahc_outb(ahc, BUSTIME, (hostconf << 2) & BOFF);
|
|
}
|
|
|
|
/*
|
|
* Generic aic7xxx initialization.
|
|
*/
|
|
if (ahc_init(ahc)) {
|
|
ahc_free(ahc);
|
|
/*
|
|
* The board's IRQ line is not yet enabled so it's safe
|
|
* to release the irq.
|
|
*/
|
|
eisa_release_intr(e_dev, irq, ahc_intr);
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* Enable the board's BUS drivers
|
|
*/
|
|
ahc_outb(ahc, BCTL, ENABLE);
|
|
|
|
/*
|
|
* Enable our interrupt handler.
|
|
*/
|
|
if (eisa_enable_intr(e_dev, irq)) {
|
|
ahc_free(ahc);
|
|
eisa_release_intr(e_dev, irq, ahc_intr);
|
|
return -1;
|
|
}
|
|
|
|
/* Attach sub-devices - always succeeds */
|
|
ahc_attach(ahc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Read the 284x SEEPROM.
|
|
*/
|
|
static void
|
|
aha2840_load_seeprom(struct ahc_softc *ahc)
|
|
{
|
|
struct seeprom_descriptor sd;
|
|
struct seeprom_config sc;
|
|
u_int16_t checksum = 0;
|
|
u_int8_t scsi_conf;
|
|
int have_seeprom;
|
|
|
|
sd.sd_tag = ahc->tag;
|
|
sd.sd_bsh = ahc->bsh;
|
|
sd.sd_control_offset = SEECTL_2840;
|
|
sd.sd_status_offset = STATUS_2840;
|
|
sd.sd_dataout_offset = STATUS_2840;
|
|
sd.sd_chip = C46;
|
|
sd.sd_MS = 0;
|
|
sd.sd_RDY = EEPROM_TF;
|
|
sd.sd_CS = CS_2840;
|
|
sd.sd_CK = CK_2840;
|
|
sd.sd_DO = DO_2840;
|
|
sd.sd_DI = DI_2840;
|
|
|
|
if (bootverbose)
|
|
printf("%s: Reading SEEPROM...", ahc_name(ahc));
|
|
have_seeprom = read_seeprom(&sd,
|
|
(u_int16_t *)&sc,
|
|
/*start_addr*/0,
|
|
sizeof(sc)/2);
|
|
|
|
if (have_seeprom) {
|
|
/* Check checksum */
|
|
int i;
|
|
int maxaddr = (sizeof(sc)/2) - 1;
|
|
u_int16_t *scarray = (u_int16_t *)≻
|
|
|
|
for (i = 0; i < maxaddr; i++)
|
|
checksum = checksum + scarray[i];
|
|
if (checksum != sc.checksum) {
|
|
if(bootverbose)
|
|
printf ("checksum error\n");
|
|
have_seeprom = 0;
|
|
} else if (bootverbose) {
|
|
printf("done.\n");
|
|
}
|
|
}
|
|
|
|
if (!have_seeprom) {
|
|
if (bootverbose)
|
|
printf("%s: No SEEPROM available\n", ahc_name(ahc));
|
|
ahc->flags |= AHC_USEDEFAULTS;
|
|
} else {
|
|
/*
|
|
* Put the data we've collected down into SRAM
|
|
* where ahc_init will find it.
|
|
*/
|
|
int i;
|
|
int max_targ = (ahc->features & AHC_WIDE) != 0 ? 16 : 8;
|
|
|
|
for (i = 0; i < max_targ; i++){
|
|
u_int8_t target_settings;
|
|
target_settings = (sc.device_flags[i] & CFXFER) << 4;
|
|
if (sc.device_flags[i] & CFSYNCH)
|
|
target_settings |= SOFS;
|
|
if (sc.device_flags[i] & CFWIDEB)
|
|
target_settings |= WIDEXFER;
|
|
if (sc.device_flags[i] & CFDISC)
|
|
ahc->discenable |= (0x01 << i);
|
|
ahc_outb(ahc, TARG_SCSIRATE + i, target_settings);
|
|
}
|
|
ahc_outb(ahc, DISC_DSB, ~(ahc->discenable & 0xff));
|
|
ahc_outb(ahc, DISC_DSB + 1, ~((ahc->discenable >> 8) & 0xff));
|
|
|
|
ahc->our_id = sc.brtime_id & CFSCSIID;
|
|
|
|
scsi_conf = (ahc->our_id & 0x7);
|
|
if (sc.adapter_control & CFSPARITY)
|
|
scsi_conf |= ENSPCHK;
|
|
if (sc.adapter_control & CFRESETB)
|
|
scsi_conf |= RESET_SCSI;
|
|
|
|
if (sc.bios_control & CF284XEXTEND)
|
|
ahc->flags |= AHC_EXTENDED_TRANS_A;
|
|
/* Set SCSICONF info */
|
|
ahc_outb(ahc, SCSICONF, scsi_conf);
|
|
|
|
if (sc.adapter_control & CF284XSTERM)
|
|
ahc->flags |= AHC_TERM_ENB_A;
|
|
}
|
|
}
|
|
|
|
#endif /* NEISA > 0 */
|