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ac09ec5108
freebsd-dev/sys/pci/pcisupport.c
Garrett Wollman ac09ec5108 Spelling error: Busting -> Bursting.
1996-01-23 21:31:51 +00:00

710 lines
22 KiB
C
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/**************************************************************************
**
** $Id: pcisupport.c,v 1.27 1996/01/23 20:36:49 wollman Exp $
**
** Device driver for DEC/INTEL PCI chipsets.
**
** FreeBSD
**
**-------------------------------------------------------------------------
**
** Written for FreeBSD by
** wolf@cologne.de Wolfgang Stanglmeier
** se@mi.Uni-Koeln.de Stefan Esser
**
**-------------------------------------------------------------------------
**
** Copyright (c) 1994,1995 Stefan Esser. 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. 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/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/devconf.h>
#include <machine/cpu.h>
#include <pci/pcivar.h>
#include <pci/pcireg.h>
/*---------------------------------------------------------
**
** Intel chipsets for 486 / Pentium processor
**
**---------------------------------------------------------
*/
static char* chipset_probe (pcici_t tag, pcidi_t type);
static void chipset_attach(pcici_t tag, int unit);
static u_long chipset_count;
static struct pci_device chipset_device = {
"chip",
chipset_probe,
chipset_attach,
&chipset_count,
NULL
};
DATA_SET (pcidevice_set, chipset_device);
struct condmsg {
unsigned char port;
unsigned char mask;
unsigned char value;
char flags;
const char *text;
};
static char*
chipset_probe (pcici_t tag, pcidi_t type)
{
unsigned rev;
switch (type) {
case 0x04868086:
return ("Intel 82425EX PCI system controller");
case 0x04848086:
rev = (unsigned) pci_conf_read (tag, PCI_CLASS_REG) & 0xff;
if (rev == 3)
return ("Intel 82378ZB PCI-ISA bridge");
return ("Intel 82378IB PCI-ISA bridge");
case 0x04838086:
return ("Intel 82424ZX (Saturn) cache DRAM controller");
case 0x04828086:
return ("Intel 82375EB PCI-EISA bridge");
case 0x04a38086:
rev = (unsigned) pci_conf_read (tag, PCI_CLASS_REG) & 0xff;
if (rev == 16 || rev == 17)
return ("Intel 82434NX (Neptune) PCI cache memory controller");
return ("Intel 82434LX (Mercury) PCI cache memory controller");
case 0x122d8086:
return ("Intel 82437 (Triton)");
case 0x122e8086:
return ("Intel 82371 (Triton)");
case 0x12308086:
return ("Intel 82438 (Triton)");
case 0x04961039:
return ("SiS 85c496");
case 0x04061039:
return ("SiS 85c501");
case 0x00081039:
return ("SiS 85c503");
case 0x06011039:
return ("SiS 85c601");
case 0x00011011:
return ("DEC 21050 PCI-PCI bridge");
};
return ((char*)0);
}
#ifndef PCI_QUIET
#define M_XX 0 /* end of list */
#define M_EQ 1 /* mask and return true if equal */
#define M_NE 2 /* mask and return true if not equal */
#define M_TR 3 /* don't read config, always true */
#define M_EN 4 /* mask and print "enabled" if true, "disabled" if false */
#define M_NN 5 /* opposite sense of M_EN */
static const struct condmsg conf82425ex[] =
{
{ 0x00, 0x00, 0x00, M_TR, "\tClock " },
{ 0x50, 0x06, 0x00, M_EQ, "25" },
{ 0x50, 0x06, 0x02, M_EQ, "33" },
{ 0x50, 0x04, 0x04, M_EQ, "??", },
{ 0x00, 0x00, 0x00, M_TR, "MHz, L1 Cache " },
{ 0x50, 0x01, 0x00, M_EQ, "Disabled\n" },
{ 0x50, 0x09, 0x01, M_EQ, "Write-through\n" },
{ 0x50, 0x09, 0x09, M_EQ, "Write-back\n" },
{ 0x00, 0x00, 0x00, M_TR, "\tL2 Cache " },
{ 0x52, 0x07, 0x00, M_EQ, "Disabled" },
{ 0x52, 0x0f, 0x01, M_EQ, "64KB Write-through" },
{ 0x52, 0x0f, 0x02, M_EQ, "128KB Write-through" },
{ 0x52, 0x0f, 0x03, M_EQ, "256KB Write-through" },
{ 0x52, 0x0f, 0x04, M_EQ, "512KB Write-through" },
{ 0x52, 0x0f, 0x01, M_EQ, "64KB Write-back" },
{ 0x52, 0x0f, 0x02, M_EQ, "128KB Write-back" },
{ 0x52, 0x0f, 0x03, M_EQ, "256KB Write-back" },
{ 0x52, 0x0f, 0x04, M_EQ, "512KB Write-back" },
{ 0x53, 0x01, 0x00, M_EQ, ", 3-" },
{ 0x53, 0x01, 0x01, M_EQ, ", 2-" },
{ 0x53, 0x06, 0x00, M_EQ, "3-3-3" },
{ 0x53, 0x06, 0x02, M_EQ, "2-2-2" },
{ 0x53, 0x06, 0x04, M_EQ, "1-1-1" },
{ 0x53, 0x06, 0x06, M_EQ, "?-?-?" },
{ 0x53, 0x18, 0x00, M_EQ, "/4-2-2-2\n" },
{ 0x53, 0x18, 0x08, M_EQ, "/3-2-2-2\n" },
{ 0x53, 0x18, 0x10, M_EQ, "/?-?-?-?\n" },
{ 0x53, 0x18, 0x18, M_EQ, "/2-1-1-1\n" },
{ 0x56, 0x00, 0x00, M_TR, "\tDRAM: " },
{ 0x56, 0x02, 0x02, M_EQ, "Fast Code Read, " },
{ 0x56, 0x04, 0x04, M_EQ, "Fast Data Read, " },
{ 0x56, 0x08, 0x08, M_EQ, "Fast Write, " },
{ 0x57, 0x20, 0x20, M_EQ, "Pipelined CAS" },
{ 0x57, 0x2e, 0x00, M_NE, "\n\t" },
{ 0x57, 0x00, 0x00, M_TR, "Timing: RAS: " },
{ 0x57, 0x07, 0x00, M_EQ, "4" },
{ 0x57, 0x07, 0x01, M_EQ, "3" },
{ 0x57, 0x07, 0x02, M_EQ, "2" },
{ 0x57, 0x07, 0x04, M_EQ, "1.5" },
{ 0x57, 0x07, 0x05, M_EQ, "1" },
{ 0x57, 0x00, 0x00, M_TR, " Clocks, CAS Read: " },
{ 0x57, 0x18, 0x00, M_EQ, "3/1", },
{ 0x57, 0x18, 0x00, M_EQ, "2/1", },
{ 0x57, 0x18, 0x00, M_EQ, "1.5/0.5", },
{ 0x57, 0x18, 0x00, M_EQ, "1/1", },
{ 0x57, 0x00, 0x00, M_TR, ", CAS Write: " },
{ 0x57, 0x20, 0x00, M_EQ, "2/1", },
{ 0x57, 0x20, 0x20, M_EQ, "1/1", },
{ 0x57, 0x00, 0x00, M_TR, "\n" },
{ 0x40, 0x01, 0x01, M_EQ, "\tCPU-to-PCI Byte Merging\n" },
{ 0x40, 0x02, 0x02, M_EQ, "\tCPU-to-PCI Bursting\n" },
{ 0x40, 0x04, 0x04, M_EQ, "\tPCI Posted Writes\n" },
{ 0x40, 0x20, 0x00, M_EQ, "\tDRAM Parity Disabled\n" },
{ 0x48, 0x03, 0x01, M_EQ, "\tPCI IDE controller: Primary (1F0h-1F7h,3F6h,3F7h)" },
{ 0x48, 0x03, 0x02, M_EQ, "\tPCI IDE controller: Secondary (170h-177h,376h,377h)" },
{ 0x4d, 0x01, 0x01, M_EQ, "\tRTC (70-77h)\n" },
{ 0x4d, 0x02, 0x02, M_EQ, "\tKeyboard (60,62,64,66h)\n" },
{ 0x4d, 0x08, 0x08, M_EQ, "\tIRQ12/M Mouse Function\n" },
/* end marker */
{ 0 }
};
static const struct condmsg conf82424zx[] =
{
{ 0x00, 0x00, 0x00, M_TR, "\tCPU: " },
{ 0x50, 0xe0, 0x00, M_EQ, "486DX" },
{ 0x50, 0xe0, 0x20, M_EQ, "486SX" },
{ 0x50, 0xe0, 0x40, M_EQ, "486DX2 or 486DX4" },
{ 0x50, 0xe0, 0x80, M_EQ, "Overdrive (writeback)" },
{ 0x00, 0x00, 0x00, M_TR, ", bus=" },
{ 0x50, 0x03, 0x00, M_EQ, "25MHz" },
{ 0x50, 0x03, 0x01, M_EQ, "33MHz" },
{ 0x53, 0x01, 0x01, M_TR, ", CPU->Memory posting "},
{ 0x53, 0x01, 0x00, M_EQ, "OFF" },
{ 0x53, 0x01, 0x01, M_EQ, "ON" },
{ 0x56, 0x30, 0x00, M_NE, "\n\tWarning:" },
{ 0x56, 0x20, 0x00, M_NE, " NO cache parity!" },
{ 0x56, 0x10, 0x00, M_NE, " NO DRAM parity!" },
{ 0x55, 0x04, 0x04, M_EQ, "\n\tWarning: refresh OFF! " },
{ 0x00, 0x00, 0x00, M_TR, "\n\tCache: " },
{ 0x52, 0x01, 0x00, M_EQ, "None" },
{ 0x52, 0xc1, 0x01, M_EQ, "64KB" },
{ 0x52, 0xc1, 0x41, M_EQ, "128KB" },
{ 0x52, 0xc1, 0x81, M_EQ, "256KB" },
{ 0x52, 0xc1, 0xc1, M_EQ, "512KB" },
{ 0x52, 0x03, 0x01, M_EQ, " writethrough" },
{ 0x52, 0x03, 0x03, M_EQ, " writeback" },
{ 0x52, 0x01, 0x01, M_EQ, ", cache clocks=" },
{ 0x52, 0x05, 0x01, M_EQ, "3-1-1-1" },
{ 0x52, 0x05, 0x05, M_EQ, "2-1-1-1" },
{ 0x00, 0x00, 0x00, M_TR, "\n\tDRAM:" },
{ 0x55, 0x43, 0x00, M_NE, " page mode" },
{ 0x55, 0x02, 0x02, M_EQ, " code fetch" },
{ 0x55, 0x43, 0x43, M_EQ, "," },
{ 0x55, 0x43, 0x42, M_EQ, " and" },
{ 0x55, 0x40, 0x40, M_EQ, " read" },
{ 0x55, 0x03, 0x03, M_EQ, " and" },
{ 0x55, 0x43, 0x41, M_EQ, " and" },
{ 0x55, 0x01, 0x01, M_EQ, " write" },
{ 0x55, 0x43, 0x00, M_NE, "," },
{ 0x00, 0x00, 0x00, M_TR, " memory clocks=" },
{ 0x55, 0x20, 0x00, M_EQ, "X-2-2-2" },
{ 0x55, 0x20, 0x20, M_EQ, "X-1-2-1" },
{ 0x00, 0x00, 0x00, M_TR, "\n\tCPU->PCI: posting " },
{ 0x53, 0x02, 0x00, M_NE, "ON" },
{ 0x53, 0x02, 0x00, M_EQ, "OFF" },
{ 0x00, 0x00, 0x00, M_TR, ", burst mode " },
{ 0x54, 0x02, 0x00, M_NE, "ON" },
{ 0x54, 0x02, 0x00, M_EQ, "OFF" },
{ 0x00, 0x00, 0x00, M_TR, "\n\tPCI->Memory: posting " },
{ 0x54, 0x01, 0x00, M_NE, "ON" },
{ 0x54, 0x01, 0x00, M_EQ, "OFF" },
{ 0x00, 0x00, 0x00, M_TR, "\n" },
/* end marker */
{ 0 }
};
static const struct condmsg conf82434lx[] =
{
{ 0x00, 0x00, 0x00, M_TR, "\tCPU: " },
{ 0x50, 0xe3, 0x82, M_EQ, "Pentium, 60MHz" },
{ 0x50, 0xe3, 0x83, M_EQ, "Pentium, 66MHz" },
{ 0x50, 0xe3, 0xa2, M_EQ, "Pentium, 90MHz" },
{ 0x50, 0xe3, 0xa3, M_EQ, "Pentium, 100MHz" },
{ 0x50, 0xc2, 0x82, M_NE, "(unknown)" },
{ 0x50, 0x04, 0x00, M_EQ, " (primary cache OFF)" },
{ 0x53, 0x01, 0x01, M_TR, ", CPU->Memory posting "},
{ 0x53, 0x01, 0x01, M_NE, "OFF" },
{ 0x53, 0x01, 0x01, M_EQ, "ON" },
{ 0x53, 0x08, 0x00, M_NE, ", read around write"},
{ 0x70, 0x04, 0x00, M_EQ, "\n\tWarning: Cache parity disabled!" },
{ 0x57, 0x20, 0x00, M_NE, "\n\tWarning: DRAM parity mask!" },
{ 0x57, 0x01, 0x00, M_EQ, "\n\tWarning: refresh OFF! " },
{ 0x00, 0x00, 0x00, M_TR, "\n\tCache: " },
{ 0x52, 0x01, 0x00, M_EQ, "None" },
{ 0x52, 0x81, 0x01, M_EQ, "" },
{ 0x52, 0xc1, 0x81, M_EQ, "256KB" },
{ 0x52, 0xc1, 0xc1, M_EQ, "512KB" },
{ 0x52, 0x03, 0x01, M_EQ, " writethrough" },
{ 0x52, 0x03, 0x03, M_EQ, " writeback" },
{ 0x52, 0x01, 0x01, M_EQ, ", cache clocks=" },
{ 0x52, 0x21, 0x01, M_EQ, "3-2-2-2/4-2-2-2" },
{ 0x52, 0x21, 0x21, M_EQ, "3-1-1-1" },
{ 0x52, 0x01, 0x01, M_EQ, "\n\tCache flags: " },
{ 0x52, 0x11, 0x11, M_EQ, " cache-all" },
{ 0x52, 0x09, 0x09, M_EQ, " byte-control" },
{ 0x52, 0x05, 0x05, M_EQ, " powersaver" },
{ 0x00, 0x00, 0x00, M_TR, "\n\tDRAM:" },
{ 0x57, 0x10, 0x00, M_EQ, " page mode" },
{ 0x00, 0x00, 0x00, M_TR, " memory clocks=" },
{ 0x57, 0xc0, 0x00, M_EQ, "X-4-4-4 (70ns)" },
{ 0x57, 0xc0, 0x40, M_EQ, "X-4-4-4/X-3-3-3 (60ns)" },
{ 0x57, 0xc0, 0x80, M_EQ, "???" },
{ 0x57, 0xc0, 0xc0, M_EQ, "X-3-3-3 (50ns)" },
{ 0x58, 0x02, 0x02, M_EQ, ", RAS-wait" },
{ 0x58, 0x01, 0x01, M_EQ, ", CAS-wait" },
{ 0x00, 0x00, 0x00, M_TR, "\n\tCPU->PCI: posting " },
{ 0x53, 0x02, 0x02, M_EQ, "ON" },
{ 0x53, 0x02, 0x00, M_EQ, "OFF" },
{ 0x00, 0x00, 0x00, M_TR, ", burst mode " },
{ 0x54, 0x02, 0x00, M_NE, "ON" },
{ 0x54, 0x02, 0x00, M_EQ, "OFF" },
{ 0x54, 0x04, 0x00, M_TR, ", PCI clocks=" },
{ 0x54, 0x04, 0x00, M_EQ, "2-2-2-2" },
{ 0x54, 0x04, 0x00, M_NE, "2-1-1-1" },
{ 0x00, 0x00, 0x00, M_TR, "\n\tPCI->Memory: posting " },
{ 0x54, 0x01, 0x00, M_NE, "ON" },
{ 0x54, 0x01, 0x00, M_EQ, "OFF" },
{ 0x57, 0x01, 0x01, M_EQ, "\n\tRefresh:" },
{ 0x57, 0x03, 0x03, M_EQ, " CAS#/RAS#(Hidden)" },
{ 0x57, 0x03, 0x01, M_EQ, " RAS#Only" },
{ 0x57, 0x05, 0x05, M_EQ, " BurstOf4" },
{ 0x00, 0x00, 0x00, M_TR, "\n" },
/* end marker */
{ 0 }
};
static const struct condmsg conf82378[] =
{
{ 0x00, 0x00, 0x00, M_TR, "\tBus Modes:" },
{ 0x41, 0x04, 0x04, M_EQ, " Bus Park," },
{ 0x41, 0x02, 0x02, M_EQ, " Bus Lock," },
{ 0x41, 0x02, 0x00, M_EQ, " Resource Lock," },
{ 0x41, 0x01, 0x01, M_EQ, " GAT" },
{ 0x4d, 0x20, 0x20, M_EQ, "\n\tCoprocessor errors enabled" },
{ 0x4d, 0x10, 0x10, M_EQ, "\n\tMouse function enabled" },
{ 0x4e, 0x30, 0x10, M_EQ, "\n\tIDE controller: Primary (1F0h-1F7h,3F6h,3F7h)" },
{ 0x4e, 0x30, 0x30, M_EQ, "\n\tIDE controller: Secondary (170h-177h,376h,377h)" },
{ 0x4e, 0x28, 0x08, M_EQ, "\n\tFloppy controller: 3F0h,3F1h " },
{ 0x4e, 0x24, 0x04, M_EQ, "\n\tFloppy controller: 3F2h-3F7h " },
{ 0x4e, 0x28, 0x28, M_EQ, "\n\tFloppy controller: 370h,371h " },
{ 0x4e, 0x24, 0x24, M_EQ, "\n\tFloppy controller: 372h-377h " },
{ 0x4e, 0x02, 0x02, M_EQ, "\n\tKeyboard controller: 60h,62h,64h,66h" },
{ 0x4e, 0x01, 0x01, M_EQ, "\n\tRTC: 70h-77h" },
{ 0x4f, 0x80, 0x80, M_EQ, "\n\tConfiguration RAM: 0C00h,0800h-08FFh" },
{ 0x4f, 0x40, 0x40, M_EQ, "\n\tPort 92: enabled" },
{ 0x4f, 0x03, 0x00, M_EQ, "\n\tSerial Port A: COM1 (3F8h-3FFh)" },
{ 0x4f, 0x03, 0x01, M_EQ, "\n\tSerial Port A: COM2 (2F8h-2FFh)" },
{ 0x4f, 0x0c, 0x00, M_EQ, "\n\tSerial Port B: COM1 (3F8h-3FFh)" },
{ 0x4f, 0x0c, 0x04, M_EQ, "\n\tSerial Port B: COM2 (2F8h-2FFh)" },
{ 0x4f, 0x30, 0x00, M_EQ, "\n\tParallel Port: LPT1 (3BCh-3BFh)" },
{ 0x4f, 0x30, 0x04, M_EQ, "\n\tParallel Port: LPT2 (378h-37Fh)" },
{ 0x4f, 0x30, 0x20, M_EQ, "\n\tParallel Port: LPT3 (278h-27Fh)" },
{ 0x00, 0x00, 0x00, M_TR, "\n" },
/* end marker */
{ 0 }
};
static const struct condmsg conf82437fx[] =
{
/* PCON -- PCI Control Register */
{ 0x00, 0x00, 0x00, M_TR, "\tCPU Inactivity timer: " },
{ 0x50, 0xe0, 0xe0, M_EQ, "8" },
{ 0x50, 0xe0, 0xd0, M_EQ, "7" },
{ 0x50, 0xe0, 0xc0, M_EQ, "6" },
{ 0x50, 0xe0, 0xb0, M_EQ, "5" },
{ 0x50, 0xe0, 0xa0, M_EQ, "4" },
{ 0x50, 0xe0, 0x90, M_EQ, "3" },
{ 0x50, 0xe0, 0x80, M_EQ, "2" },
{ 0x50, 0xe0, 0x00, M_EQ, "1" },
{ 0x00, 0x00, 0x00, M_TR, " clocks\n\tPeer Concurrency: " },
{ 0x50, 0x08, 0x08, M_EN, 0 },
{ 0x00, 0x00, 0x00, M_TR, "\n\tCPU-to-PCI Write Bursting: " },
{ 0x50, 0x04, 0x00, M_NN, 0 },
{ 0x00, 0x00, 0x00, M_TR, "\n\tPCI Streaming: " },
{ 0x50, 0x02, 0x00, M_NN, 0 },
{ 0x00, 0x00, 0x00, M_TR, "\n\tBus Concurrency: " },
{ 0x50, 0x01, 0x00, M_NN, 0 },
/* CC -- Cache Control Regsiter */
{ 0x00, 0x00, 0x00, M_TR, "\n\tCache:" },
{ 0x52, 0xc0, 0x80, M_EQ, " 512K" },
{ 0x52, 0xc0, 0x40, M_EQ, " 256K" },
{ 0x52, 0xc0, 0x00, M_EQ, " NO" },
{ 0x52, 0x30, 0x00, M_EQ, " pipelined-burst" },
{ 0x52, 0x30, 0x10, M_EQ, " burst" },
{ 0x52, 0x30, 0x20, M_EQ, " asynchronous" },
{ 0x52, 0x30, 0x30, M_EQ, " dual-bank pipelined-burst" },
{ 0x00, 0x00, 0x00, M_TR, " secondary; L1 " },
{ 0x52, 0x01, 0x00, M_EN, 0 },
{ 0x00, 0x00, 0x00, M_TR, "\n" },
/* DRAMC -- DRAM Control Register */
{ 0x57, 0x07, 0x00, M_EQ, "Warning: refresh OFF!\n" },
{ 0x00, 0x00, 0x00, M_TR, "\tDRAM:" },
{ 0x57, 0xc0, 0x00, M_EQ, " no memory hole" },
{ 0x57, 0xc0, 0x40, M_EQ, " 512K-640K memory hole" },
{ 0x57, 0xc0, 0x80, M_EQ, " 15M-16M memory hole" },
{ 0x57, 0x07, 0x01, M_EQ, ", 50 MHz refresh" },
{ 0x57, 0x07, 0x02, M_EQ, ", 60 MHz refresh" },
{ 0x57, 0x07, 0x03, M_EQ, ", 66 MHz refresh" },
/* DRAMT = DRAM Timing Register */
{ 0x00, 0x00, 0x00, M_TR, "\n\tRead burst timing: " },
{ 0x58, 0x60, 0x00, M_EQ, "x-4-4-4/x-4-4-4" },
{ 0x58, 0x60, 0x20, M_EQ, "x-3-3-3/x-4-4-4" },
{ 0x58, 0x60, 0x40, M_EQ, "x-2-2-2/x-3-3-3" },
{ 0x58, 0x60, 0x60, M_EQ, "???" },
{ 0x00, 0x00, 0x00, M_TR, "\n\tWrite burst timing: " },
{ 0x58, 0x18, 0x00, M_EQ, "x-4-4-4" },
{ 0x58, 0x18, 0x08, M_EQ, "x-3-3-3" },
{ 0x58, 0x18, 0x10, M_EQ, "x-2-2-2" },
{ 0x58, 0x18, 0x18, M_EQ, "???" },
{ 0x00, 0x00, 0x00, M_TR, "\n\tRAS-CAS delay: " },
{ 0x58, 0x04, 0x00, M_EQ, "3" },
{ 0x58, 0x04, 0x04, M_EQ, "2" },
{ 0x00, 0x00, 0x00, M_TR, " clocks\n" },
/* end marker */
{ 0 }
};
static const struct condmsg conf82371fb[] =
{
/* IORT -- ISA I/O Recovery Timer Register */
{ 0x00, 0x00, 0x00, M_TR, "\tI/O Recovery Timing: 8-bit " },
{ 0x4c, 0x40, 0x00, M_EQ, "3.5" },
{ 0x4c, 0x78, 0x48, M_EQ, "1" },
{ 0x4c, 0x78, 0x50, M_EQ, "2" },
{ 0x4c, 0x78, 0x58, M_EQ, "3" },
{ 0x4c, 0x78, 0x60, M_EQ, "4" },
{ 0x4c, 0x78, 0x68, M_EQ, "5" },
{ 0x4c, 0x78, 0x70, M_EQ, "6" },
{ 0x4c, 0x78, 0x78, M_EQ, "7" },
{ 0x4c, 0x78, 0x40, M_EQ, "8" },
{ 0x00, 0x00, 0x00, M_TR, " clocks, 16-bit " },
{ 0x4c, 0x04, 0x00, M_EQ, "3.5" },
{ 0x4c, 0x07, 0x05, M_EQ, "1" },
{ 0x4c, 0x07, 0x06, M_EQ, "2" },
{ 0x4c, 0x07, 0x07, M_EQ, "3" },
{ 0x4c, 0x07, 0x04, M_EQ, "4" },
{ 0x00, 0x00, 0x00, M_TR, " clocks\n" },
/* XBCS -- X-Bus Chip Select Register */
{ 0x00, 0x00, 0x00, M_TR, "\tExtended BIOS: " },
{ 0x4e, 0x80, 0x80, M_EN, 0 },
{ 0x00, 0x00, 0x00, M_TR, "\n\tLower BIOS: " },
{ 0x4e, 0x40, 0x40, M_EN, 0 },
{ 0x00, 0x00, 0x00, M_TR, "\n\tCoprocessor IRQ13: " },
{ 0x4e, 0x20, 0x20, M_EN, 0 },
{ 0x00, 0x00, 0x00, M_TR, "\n\tMouse IRQ12: " },
{ 0x4e, 0x10, 0x10, M_EN, 0 },
{ 0x00, 0x00, 0x00, M_TR, "\n" },
#define PIRQ(x, n) \
{ 0x00, 0x00, 0x00, M_TR, "\t" n " Routing: " }, \
{ x, 0x80, 0x80, M_EQ, "disabled" }, \
{ x, 0xc0, 0x40, M_EQ, "[shared] " }, \
{ x, 0x8f, 0x03, M_EQ, "IRQ3" }, \
{ x, 0x8f, 0x04, M_EQ, "IRQ4" }, \
{ x, 0x8f, 0x05, M_EQ, "IRQ5" }, \
{ x, 0x8f, 0x06, M_EQ, "IRQ6" }, \
{ x, 0x8f, 0x07, M_EQ, "IRQ7" }, \
{ x, 0x8f, 0x09, M_EQ, "IRQ9" }, \
{ x, 0x8f, 0x0a, M_EQ, "IRQ10" }, \
{ x, 0x8f, 0x0b, M_EQ, "IRQ11" }, \
{ x, 0x8f, 0x0c, M_EQ, "IRQ12" }, \
{ x, 0x8f, 0x0e, M_EQ, "IRQ14" }, \
{ x, 0x8f, 0x0f, M_EQ, "IRQ15" }, \
{ 0x00, 0x00, 0x00, M_TR, "\n" }
/* Interrupt routing */
PIRQ(0x60, "INTA"),
PIRQ(0x61, "INTB"),
PIRQ(0x62, "INTC"),
PIRQ(0x63, "INTD"),
PIRQ(0x70, "MBIRQ0"),
PIRQ(0x71, "MBIRQ1"),
#undef PIRQ
/* XXX - do DMA routing, too? */
{ 0 }
};
static char confread (pcici_t config_id, int port)
{
unsigned long portw = port & ~3;
unsigned long ports = (port - portw) << 3;
unsigned long l = pci_conf_read (config_id, portw);
return (l >> ports);
}
static void
writeconfig (pcici_t config_id, const struct condmsg *tbl)
{
while (tbl->flags != M_XX) {
const char *text = 0;
if (tbl->flags == M_TR) {
text = tbl->text;
} else {
unsigned char v = (unsigned char) confread(config_id, tbl->port);
switch (tbl->flags) {
case M_EQ:
if ((v & tbl->mask) == tbl->value) text = tbl->text;
break;
case M_NE:
if ((v & tbl->mask) != tbl->value) text = tbl->text;
break;
case M_EN:
text = (v & tbl->mask) ? "enabled" : "disabled";
break;
case M_NN:
text = (v & tbl->mask) ? "disabled" : "enabled";
}
}
if (text) printf ("%s", text);
tbl++;
}
}
#endif /* PCI_QUIET */
static void
chipset_attach (pcici_t config_id, int unit)
{
#ifndef PCI_QUIET
if (!bootverbose)
return;
switch (pci_conf_read (config_id, PCI_ID_REG)) {
case 0x04868086:
writeconfig (config_id, conf82425ex);
break;
case 0x04838086:
writeconfig (config_id, conf82424zx);
break;
case 0x04a38086:
writeconfig (config_id, conf82434lx);
break;
case 0x04848086:
writeconfig (config_id, conf82378);
break;
case 0x04828086:
printf ("\t[40] %lx [50] %lx [54] %lx\n",
pci_conf_read (config_id, 0x40),
pci_conf_read (config_id, 0x50),
pci_conf_read (config_id, 0x54));
break;
case 0x122d8086:
writeconfig (config_id, conf82437fx);
break;
case 0x122e8086:
writeconfig (config_id, conf82371fb);
break;
};
#endif /* PCI_QUIET */
}
/*---------------------------------------------------------
**
** Catchall driver for VGA devices
**
** By Garrett Wollman
** <wollman@halloran-eldar.lcs.mit.edu>
**
**---------------------------------------------------------
*/
static char* vga_probe (pcici_t tag, pcidi_t type);
static void vga_attach (pcici_t tag, int unit);
static u_long vga_count;
static struct pci_device vga_device = {
"vga",
vga_probe,
vga_attach,
&vga_count,
NULL
};
DATA_SET (pcidevice_set, vga_device);
static char* vga_probe (pcici_t tag, pcidi_t type)
{
int data = pci_conf_read(tag, PCI_CLASS_REG);
switch (data & PCI_CLASS_MASK) {
case PCI_CLASS_PREHISTORIC:
if ((data & PCI_SUBCLASS_MASK)
!= PCI_SUBCLASS_PREHISTORIC_VGA)
break;
case PCI_CLASS_DISPLAY:
if ((data & PCI_SUBCLASS_MASK)
== PCI_SUBCLASS_DISPLAY_VGA)
return ("VGA-compatible display device");
else
return ("Display device");
};
return ((char*)0);
}
static void vga_attach (pcici_t tag, int unit)
{
/*
** If the assigned addresses are remapped,
** the console driver has to be informed about the new address.
*/
#if 0
vm_offset_t va;
vm_offset_t pa;
int reg;
for (reg = PCI_MAP_REG_START; reg < PCI_MAP_REG_END; reg += 4)
(void) pci_map_mem (tag, reg, &va, &pa);
#endif
}
/*---------------------------------------------------------
**
** Hook for loadable pci drivers
**
**---------------------------------------------------------
*/
static char* lkm_probe (pcici_t tag, pcidi_t type);
static void lkm_attach (pcici_t tag, int unit);
static u_long lkm_count;
static struct pci_device lkm_device = {
"lkm",
lkm_probe,
lkm_attach,
&lkm_count,
NULL
};
DATA_SET (pcidevice_set, lkm_device);
static char*
lkm_probe (pcici_t tag, pcidi_t type)
{
/*
** Not yet!
** (Should try to load a matching driver)
*/
return ((char*)0);
}
static void
lkm_attach (pcici_t tag, int unit)
{}
/*---------------------------------------------------------
**
** Devices to ignore
**
**---------------------------------------------------------
*/
static char* ign_probe (pcici_t tag, pcidi_t type);
static void ign_attach (pcici_t tag, int unit);
static u_long ign_count;
static struct pci_device ign_device = {
NULL,
ign_probe,
ign_attach,
&ign_count,
NULL
};
DATA_SET (pcidevice_set, ign_device);
static char*
ign_probe (pcici_t tag, pcidi_t type)
{
switch (type) {
case 0x10001042ul: /* wd */
return ("");
/* return ("SMC FDC 37c665");*/
};
return ((char*)0);
}
static void
ign_attach (pcici_t tag, int unit)
{}
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