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Initialize PCI/CardBus bridges.

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Tested on:	HP Omnibook 800 / TI PCI1130
Reviewed by:	se
This commit is contained in:
Poul-Henning Kamp 1997-05-03 13:52:29 +00:00
parent 1c337dcffe
commit b038679c5c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=25417
2 changed files with 104 additions and 78 deletions
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91
sys/dev/pci/pci.c
View File

@ -1,6 +1,6 @@
/**************************************************************************
**
** $Id: pci.c,v 1.69 1997/04/23 19:43:20 se Exp $
** $Id: pci.c,v 1.70 1997/04/26 11:46:18 peter Exp $
**
** General subroutines for the PCI bus.
** pci_configure ()
@ -472,52 +472,65 @@ static void pci_attach (int bus, int dev, int func,
** and update the pcicb fields.
*/
for (reg=PCI_MAP_REG_START;reg<PCI_MAP_REG_END;reg+=4) {
data = pci_conf_read(tag, PCI_CLASS_REG);
data &= (PCI_CLASS_MASK|PCI_SUBCLASS_MASK);
switch (data) {
case PCI_CLASS_BRIDGE|PCI_SUBCLASS_BRIDGE_PCI:
break;
case PCI_CLASS_BRIDGE|PCI_SUBCLASS_BRIDGE_CARDBUS: {
u_int map, addr, size;
map = pci_conf_read(tag, PCI_CARDBUS_SOCKET_REG);
pci_conf_write (tag, PCI_CARDBUS_SOCKET_REG, 0xffffffff);
size = pci_conf_read(tag, PCI_CARDBUS_SOCKET_REG);
size = (~size) + 1;
addr = pci_memalloc (pcicb, map, size);
pci_conf_write (tag, PCI_CARDBUS_SOCKET_REG, addr);
pcicb->pcicb_mamount += size;
break;
}
default:
for (reg=PCI_MAP_REG_START;reg<PCI_MAP_REG_END;reg+=4) {
u_int map, addr, size;
data = pci_conf_read(tag, PCI_CLASS_REG);
switch (data & (PCI_CLASS_MASK|PCI_SUBCLASS_MASK)) {
case PCI_CLASS_BRIDGE|PCI_SUBCLASS_BRIDGE_PCI:
continue;
};
map = pci_conf_read (tag, reg);
if (!(map & PCI_MAP_MEMORY_ADDRESS_MASK))
continue;
map = pci_conf_read (tag, reg);
if (!(map & PCI_MAP_MEMORY_ADDRESS_MASK))
continue;
pci_conf_write (tag, reg, 0xffffffff);
data = pci_conf_read (tag, reg);
pci_conf_write (tag, reg, map);
pci_conf_write (tag, reg, 0xffffffff);
data = pci_conf_read (tag, reg);
pci_conf_write (tag, reg, map);
switch (data & 7) {
switch (data & 7) {
default:
continue;
case 1:
case 5:
addr = map & PCI_MAP_IO_ADDRESS_MASK;
size = -(data & PCI_MAP_IO_ADDRESS_MASK);
size &= ~(addr ^ -addr);
default:
continue;
case 1:
case 5:
addr = map & PCI_MAP_IO_ADDRESS_MASK;
size = -(data & PCI_MAP_IO_ADDRESS_MASK);
size &= ~(addr ^ -addr);
pci_register_io (pcicb, addr, addr+size-1);
pcicb->pcicb_pamount += size;
break;
pci_register_io (pcicb, addr, addr+size-1);
pcicb->pcicb_pamount += size;
break;
case 0:
case 2:
case 4:
size = -(data & PCI_MAP_MEMORY_ADDRESS_MASK);
addr = map & PCI_MAP_MEMORY_ADDRESS_MASK;
if (addr >= 0x100000) {
pci_register_memory (pcicb, addr, addr+size-1);
pcicb->pcicb_mamount += size;
};
break;
};
if (bootverbose)
printf ("\tmapreg[%02x] type=%d addr=%08x size=%04x.\n",
reg, map&7, addr, size);
};
case 0:
case 2:
case 4:
size = -(data & PCI_MAP_MEMORY_ADDRESS_MASK);
addr = map & PCI_MAP_MEMORY_ADDRESS_MASK;
if (addr >= 0x100000) {
pci_register_memory (pcicb, addr, addr+size-1);
pcicb->pcicb_mamount += size;
};
break;
}
if (bootverbose)
printf ("\tmapreg[%02x] type=%d addr=%08x size=%04x.\n",
reg, map&7, addr, size);
}
}
/*
** attach device

91
sys/pci/pci.c
View File

@ -1,6 +1,6 @@
/**************************************************************************
**
** $Id: pci.c,v 1.69 1997/04/23 19:43:20 se Exp $
** $Id: pci.c,v 1.70 1997/04/26 11:46:18 peter Exp $
**
** General subroutines for the PCI bus.
** pci_configure ()
@ -472,52 +472,65 @@ static void pci_attach (int bus, int dev, int func,
** and update the pcicb fields.
*/
for (reg=PCI_MAP_REG_START;reg<PCI_MAP_REG_END;reg+=4) {
data = pci_conf_read(tag, PCI_CLASS_REG);
data &= (PCI_CLASS_MASK|PCI_SUBCLASS_MASK);
switch (data) {
case PCI_CLASS_BRIDGE|PCI_SUBCLASS_BRIDGE_PCI:
break;
case PCI_CLASS_BRIDGE|PCI_SUBCLASS_BRIDGE_CARDBUS: {
u_int map, addr, size;
map = pci_conf_read(tag, PCI_CARDBUS_SOCKET_REG);
pci_conf_write (tag, PCI_CARDBUS_SOCKET_REG, 0xffffffff);
size = pci_conf_read(tag, PCI_CARDBUS_SOCKET_REG);
size = (~size) + 1;
addr = pci_memalloc (pcicb, map, size);
pci_conf_write (tag, PCI_CARDBUS_SOCKET_REG, addr);
pcicb->pcicb_mamount += size;
break;
}
default:
for (reg=PCI_MAP_REG_START;reg<PCI_MAP_REG_END;reg+=4) {
u_int map, addr, size;
data = pci_conf_read(tag, PCI_CLASS_REG);
switch (data & (PCI_CLASS_MASK|PCI_SUBCLASS_MASK)) {
case PCI_CLASS_BRIDGE|PCI_SUBCLASS_BRIDGE_PCI:
continue;
};
map = pci_conf_read (tag, reg);
if (!(map & PCI_MAP_MEMORY_ADDRESS_MASK))
continue;
map = pci_conf_read (tag, reg);
if (!(map & PCI_MAP_MEMORY_ADDRESS_MASK))
continue;
pci_conf_write (tag, reg, 0xffffffff);
data = pci_conf_read (tag, reg);
pci_conf_write (tag, reg, map);
pci_conf_write (tag, reg, 0xffffffff);
data = pci_conf_read (tag, reg);
pci_conf_write (tag, reg, map);
switch (data & 7) {
switch (data & 7) {
default:
continue;
case 1:
case 5:
addr = map & PCI_MAP_IO_ADDRESS_MASK;
size = -(data & PCI_MAP_IO_ADDRESS_MASK);
size &= ~(addr ^ -addr);
default:
continue;
case 1:
case 5:
addr = map & PCI_MAP_IO_ADDRESS_MASK;
size = -(data & PCI_MAP_IO_ADDRESS_MASK);
size &= ~(addr ^ -addr);
pci_register_io (pcicb, addr, addr+size-1);
pcicb->pcicb_pamount += size;
break;
pci_register_io (pcicb, addr, addr+size-1);
pcicb->pcicb_pamount += size;
break;
case 0:
case 2:
case 4:
size = -(data & PCI_MAP_MEMORY_ADDRESS_MASK);
addr = map & PCI_MAP_MEMORY_ADDRESS_MASK;
if (addr >= 0x100000) {
pci_register_memory (pcicb, addr, addr+size-1);
pcicb->pcicb_mamount += size;
};
break;
};
if (bootverbose)
printf ("\tmapreg[%02x] type=%d addr=%08x size=%04x.\n",
reg, map&7, addr, size);
};
case 0:
case 2:
case 4:
size = -(data & PCI_MAP_MEMORY_ADDRESS_MASK);
addr = map & PCI_MAP_MEMORY_ADDRESS_MASK;
if (addr >= 0x100000) {
pci_register_memory (pcicb, addr, addr+size-1);
pcicb->pcicb_mamount += size;
};
break;
}
if (bootverbose)
printf ("\tmapreg[%02x] type=%d addr=%08x size=%04x.\n",
reg, map&7, addr, size);
}
}
/*
** attach device