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First try to add support for PCI-PCI bridge chips (written for the
DEC 21050 chip in particular, don't have specs of other such chips). This should add support for Multiple-Ethernet PCI cards (e.g. Znyx 314). Reviewed by: se Submitted by: <wolf@kintaro.cologne.de> Wolfgang Stanglmeier
This commit is contained in:
Stefan Eßer
parent
dff6de1a8c
commit
04dbb40865
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=6767
@ -1,6 +1,6 @@
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/**************************************************************************
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**
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** $Id: pci.c,v 1.15 1995/02/22 14:17:15 se Exp $
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** $Id: pci.c,v 1.16 1995/02/25 17:26:22 se Exp $
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**
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** General subroutines for the PCI bus on 80*86 systems.
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** pci_configure ()
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@ -36,7 +36,7 @@
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***************************************************************************
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*/
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#define PCI_PATCHLEVEL "pl3 95/02/25"
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#define PCI_PATCHLEVEL "pl5 95/02/27"
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#include <pci.h>
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#if NPCI > 0
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@ -103,6 +103,19 @@ static vm_offset_t pmap_mapdev (vm_offset_t paddr, vm_size_t vsize);
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**========================================================
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*/
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/*--------------------------------------------------------
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**
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** Limit for pci bus numbers.
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**
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**--------------------------------------------------------
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*/
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#ifndef PCI_MAX_BUS
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#define PCI_MAX_BUS (256)
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#endif
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static u_long pci_bus_max = 1;
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/*--------------------------------------------------------
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**
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** The pci devices can be mapped to any address.
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@ -174,16 +187,17 @@ static u_long pci_irq = PCI_IRQ;
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static void not_supported (pcici_t tag, u_long type);
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static unsigned long pci_seen[NPCI];
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static unsigned long pci_seen[PCI_MAX_BUS];
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static int pci_conf_count;
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static int pci_info_done;
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void pci_configure()
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{
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u_char device,last_device;
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u_char device,max_device;
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u_short bus;
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pcici_t tag;
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pcidi_t type;
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pcidi_t type, type8, type16;
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u_long data;
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int unit;
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int pci_mechanism;
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@ -213,19 +227,24 @@ void pci_configure()
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pci_mechanism = pcibus.pb_mode ();
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if (!pci_mechanism) return;
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last_device = pci_mechanism==1 ? 31 : 15;
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max_device = pci_mechanism==1 ? 32 : 16;
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/*
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** hello world ..
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*/
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pci_pold=pci_paddr;
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for (bus=0;bus<NPCI;bus++) {
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for (bus=0; bus<pci_bus_max; bus++) {
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#ifndef PCI_QUIET
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printf ("%s%d: scanning device 0..%d, mechanism=%d.\n",
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pcibus.pb_name, bus, last_device, pci_mechanism);
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printf ("Probing for devices on the %s%d bus:\n",
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pcibus.pb_name, bus);
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if (!pci_info_done) {
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pci_info_done=1;
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printf ("\tconfiguration mode %d allows %d devices.\n",
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pci_mechanism, max_device);
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};
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#endif
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for (device=0; device<=last_device; device ++) {
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for (device=0; device<max_device; device ++) {
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if (pci_seen[bus] & (1ul << device))
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continue;
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@ -249,19 +268,23 @@ void pci_configure()
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/*
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** check for mirrored devices.
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*/
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if (device >= 8) {
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pcici_t tag0;
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pcidi_t type0;
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tag0 = pcibus.pb_tag (bus, device & 0x07, 0);
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type0 = pcibus.pb_read (tag0, PCI_ID_REG);
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if (type==type0) {
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if (device & 0x08) {
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pcici_t mtag;
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mtag = pcibus.pb_tag (bus, device & ~0x08, 0);
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type8 = pcibus.pb_read (mtag, PCI_ID_REG);
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} else type8 = 0;
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if (device & 0x10) {
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pcici_t mtag;
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mtag = pcibus.pb_tag (bus, device & ~0x10, 0);
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type16 = pcibus.pb_read (mtag, PCI_ID_REG);
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} else type16 = 0;
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if ((type==type8) || (type==type16)) {
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#ifndef PCI_QUIET
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if (dvp==NULL) continue;
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printf ("%s? <%s> mirrored on pci%d:%d\n",
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dvp->pd_name, name, bus, device);
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if (dvp==NULL) continue;
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printf ("%s? <%s> mirrored on pci%d:%d\n",
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dvp->pd_name, name, bus, device);
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#endif
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continue;
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};
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continue;
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};
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if (dvp==NULL) {
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@ -699,7 +722,7 @@ int pci_map_mem (pcici_t tag, u_long reg, vm_offset_t* va, vm_offset_t* pa)
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break;
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};
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if (data==0xffffffff) {
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if ((data==0xffffffff) && !oldmap) {
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printf ("\t(possible mapping problem: "
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"at 0x%x read 0xffffffff)\n",
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(unsigned) paddr);
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@ -717,6 +740,38 @@ int pci_map_mem (pcici_t tag, u_long reg, vm_offset_t* va, vm_offset_t* pa)
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return (1);
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}
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/*-----------------------------------------------------------------------
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**
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** Map new pci bus. (XXX under construction)
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**
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** PCI-Specification: ____________?
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**
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**-----------------------------------------------------------------------
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*/
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int pci_map_bus (pcici_t tag, u_long bus)
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{
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if (bus >= PCI_MAX_BUS) {
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printf ("pci_map_bus failed: bus number %d too big.\n",
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(int) bus);
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return (0);
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};
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if (bus >= pci_bus_max)
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pci_bus_max = bus + 1;
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#ifndef PCI_QUIET
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/*
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** display values.
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*/
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printf ("\tmapped pci bus %d.\n",
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(int) bus);
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#endif
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return (1);
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}
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/*------------------------------------------------------------
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**
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** Interface functions for the devconf module.
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@ -1,6 +1,6 @@
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/**************************************************************************
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**
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** $Id: pcireg.h,v 1.2 1994/11/02 23:47:14 se Exp $
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** $Id: pcivar.h,v 1.1 1995/02/01 22:56:55 se Exp $
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**
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** Declarations for pci device drivers.
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**
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@ -37,6 +37,8 @@
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#ifndef __PCI_VAR_H__
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#define __PCI_VAR_H__
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#define PCIVAR_H_PATCHLEVEL "pl1 95/02/27"
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/*-----------------------------------------------------------------
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**
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@ -160,6 +162,16 @@ struct pci_externalize_buffer {
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};
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/*-----------------------------------------------------------------
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**
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** Register an additional pci bus for probing.
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** Called by pci-pci bridge handlers.
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**
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**-----------------------------------------------------------------
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*/
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int pci_map_bus (pcici_t tag, u_long bus);
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/*-----------------------------------------------------------------
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**
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** Map a pci device to physical and virtual memory.
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@ -1,6 +1,6 @@
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/**************************************************************************
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**
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** $Id: pci.c,v 1.15 1995/02/22 14:17:15 se Exp $
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** $Id: pci.c,v 1.16 1995/02/25 17:26:22 se Exp $
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**
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** General subroutines for the PCI bus on 80*86 systems.
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** pci_configure ()
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@ -36,7 +36,7 @@
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***************************************************************************
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*/
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#define PCI_PATCHLEVEL "pl3 95/02/25"
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#define PCI_PATCHLEVEL "pl5 95/02/27"
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#include <pci.h>
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#if NPCI > 0
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@ -103,6 +103,19 @@ static vm_offset_t pmap_mapdev (vm_offset_t paddr, vm_size_t vsize);
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**========================================================
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*/
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/*--------------------------------------------------------
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**
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** Limit for pci bus numbers.
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**
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**--------------------------------------------------------
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*/
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#ifndef PCI_MAX_BUS
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#define PCI_MAX_BUS (256)
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#endif
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static u_long pci_bus_max = 1;
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/*--------------------------------------------------------
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**
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** The pci devices can be mapped to any address.
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@ -174,16 +187,17 @@ static u_long pci_irq = PCI_IRQ;
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static void not_supported (pcici_t tag, u_long type);
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static unsigned long pci_seen[NPCI];
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static unsigned long pci_seen[PCI_MAX_BUS];
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static int pci_conf_count;
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static int pci_info_done;
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void pci_configure()
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{
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u_char device,last_device;
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u_char device,max_device;
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u_short bus;
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pcici_t tag;
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pcidi_t type;
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pcidi_t type, type8, type16;
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u_long data;
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int unit;
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int pci_mechanism;
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@ -213,19 +227,24 @@ void pci_configure()
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pci_mechanism = pcibus.pb_mode ();
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if (!pci_mechanism) return;
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last_device = pci_mechanism==1 ? 31 : 15;
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max_device = pci_mechanism==1 ? 32 : 16;
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/*
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** hello world ..
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*/
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pci_pold=pci_paddr;
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for (bus=0;bus<NPCI;bus++) {
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for (bus=0; bus<pci_bus_max; bus++) {
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#ifndef PCI_QUIET
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printf ("%s%d: scanning device 0..%d, mechanism=%d.\n",
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pcibus.pb_name, bus, last_device, pci_mechanism);
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printf ("Probing for devices on the %s%d bus:\n",
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pcibus.pb_name, bus);
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if (!pci_info_done) {
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pci_info_done=1;
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printf ("\tconfiguration mode %d allows %d devices.\n",
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pci_mechanism, max_device);
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};
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#endif
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for (device=0; device<=last_device; device ++) {
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for (device=0; device<max_device; device ++) {
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if (pci_seen[bus] & (1ul << device))
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continue;
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@ -249,19 +268,23 @@ void pci_configure()
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/*
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** check for mirrored devices.
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*/
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if (device >= 8) {
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pcici_t tag0;
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pcidi_t type0;
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tag0 = pcibus.pb_tag (bus, device & 0x07, 0);
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type0 = pcibus.pb_read (tag0, PCI_ID_REG);
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if (type==type0) {
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if (device & 0x08) {
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pcici_t mtag;
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mtag = pcibus.pb_tag (bus, device & ~0x08, 0);
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type8 = pcibus.pb_read (mtag, PCI_ID_REG);
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} else type8 = 0;
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if (device & 0x10) {
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pcici_t mtag;
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mtag = pcibus.pb_tag (bus, device & ~0x10, 0);
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type16 = pcibus.pb_read (mtag, PCI_ID_REG);
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} else type16 = 0;
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if ((type==type8) || (type==type16)) {
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#ifndef PCI_QUIET
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if (dvp==NULL) continue;
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printf ("%s? <%s> mirrored on pci%d:%d\n",
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dvp->pd_name, name, bus, device);
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if (dvp==NULL) continue;
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printf ("%s? <%s> mirrored on pci%d:%d\n",
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dvp->pd_name, name, bus, device);
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#endif
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continue;
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};
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continue;
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};
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if (dvp==NULL) {
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@ -699,7 +722,7 @@ int pci_map_mem (pcici_t tag, u_long reg, vm_offset_t* va, vm_offset_t* pa)
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break;
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};
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if (data==0xffffffff) {
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if ((data==0xffffffff) && !oldmap) {
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printf ("\t(possible mapping problem: "
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"at 0x%x read 0xffffffff)\n",
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(unsigned) paddr);
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@ -717,6 +740,38 @@ int pci_map_mem (pcici_t tag, u_long reg, vm_offset_t* va, vm_offset_t* pa)
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return (1);
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}
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/*-----------------------------------------------------------------------
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**
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** Map new pci bus. (XXX under construction)
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**
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** PCI-Specification: ____________?
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**
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**-----------------------------------------------------------------------
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*/
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int pci_map_bus (pcici_t tag, u_long bus)
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{
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if (bus >= PCI_MAX_BUS) {
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printf ("pci_map_bus failed: bus number %d too big.\n",
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(int) bus);
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return (0);
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};
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if (bus >= pci_bus_max)
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pci_bus_max = bus + 1;
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#ifndef PCI_QUIET
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/*
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** display values.
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*/
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printf ("\tmapped pci bus %d.\n",
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(int) bus);
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#endif
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return (1);
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}
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/*------------------------------------------------------------
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**
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** Interface functions for the devconf module.
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@ -1,6 +1,6 @@
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/**************************************************************************
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**
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** $Id: pcireg.h,v 1.2 1994/11/02 23:47:14 se Exp $
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** $Id: pcivar.h,v 1.1 1995/02/01 22:56:55 se Exp $
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**
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** Declarations for pci device drivers.
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**
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@ -37,6 +37,8 @@
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#ifndef __PCI_VAR_H__
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#define __PCI_VAR_H__
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#define PCIVAR_H_PATCHLEVEL "pl1 95/02/27"
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/*-----------------------------------------------------------------
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**
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@ -160,6 +162,16 @@ struct pci_externalize_buffer {
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};
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/*-----------------------------------------------------------------
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**
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** Register an additional pci bus for probing.
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** Called by pci-pci bridge handlers.
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**
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**-----------------------------------------------------------------
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*/
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int pci_map_bus (pcici_t tag, u_long bus);
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/*-----------------------------------------------------------------
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**
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** Map a pci device to physical and virtual memory.
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