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fixed PCI device ROM detection

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@6229 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
beveloper 2004-01-22 21:46:01 +00:00
parent 41f86af47e
commit 66e3d4510e
1 changed files with 2 additions and 2 deletions
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4
src/add-ons/kernel/bus_managers/pci/pci.cpp
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@ -188,7 +188,7 @@ void
PCI::GetRomBarInfo(PCIDev *dev, uint8 offset, uint32 *address, uint32 *size, uint8 *flags)
{
uint32 oldvalue = pci_read_config(dev->bus, dev->dev, dev->func, offset, 4);
pci_write_config(dev->bus, dev->dev, dev->func, offset, 4, 0xffffffff);
pci_write_config(dev->bus, dev->dev, dev->func, offset, 4, 0xfffffffe); // LSB must be 0
uint32 newvalue = pci_read_config(dev->bus, dev->dev, dev->func, offset, 4);
pci_write_config(dev->bus, dev->dev, dev->func, offset, 4, oldvalue);
@ -229,7 +229,7 @@ PCI::ReadPciHeaderInfo(PCIDev *dev)
dev->info.u.h0.cardbus_cis = pci_read_config(dev->bus, dev->dev, dev->func, PCI_cardbus_cis, 4);
dev->info.u.h0.subsystem_id = pci_read_config(dev->bus, dev->dev, dev->func, PCI_subsystem_id, 2);
dev->info.u.h0.subsystem_vendor_id = pci_read_config(dev->bus, dev->dev, dev->func, PCI_subsystem_vendor_id, 2);
GetRomBarInfo(dev, PCI_bridge_rom_base, &dev->info.u.h0.rom_base_pci, &dev->info.u.h0.rom_size);
GetRomBarInfo(dev, PCI_rom_base, &dev->info.u.h0.rom_base_pci, &dev->info.u.h0.rom_size);
dev->info.u.h0.rom_base = (ulong)pci_ram_address((void *)dev->info.u.h0.rom_base_pci);
for (int i = 0; i < 6; i++) {
GetBarInfo(dev, PCI_base_registers + 4*i,