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[pci] Enable memory cycles in adjust_pci_device()

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adjust_pci_device() has historically enabled bus-mastering and I/O
cycles, but has never previously needed to enable memory cycles.  Some
EFI systems seem not to enable memory cycles by default, so add that
to the list of PCI command register bits that we force on.
This commit is contained in:
Michael Brown 2008-12-12 19:15:00 +00:00
parent 1206999288
commit 1941c933f8
1 changed files with 2 additions and 1 deletions
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3
src/drivers/bus/pci.c
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@ -148,7 +148,8 @@ void adjust_pci_device ( struct pci_device *pci ) {
unsigned char pci_latency;
pci_read_config_word ( pci, PCI_COMMAND, &pci_command );
new_command = pci_command | PCI_COMMAND_MASTER | PCI_COMMAND_IO;
new_command = ( pci_command | PCI_COMMAND_MASTER |
PCI_COMMAND_MEM | PCI_COMMAND_IO );
if ( pci_command != new_command ) {
DBG ( "PCI BIOS has not enabled device %02x:%02x.%x! "
"Updating PCI command %04x->%04x\n", pci->bus,