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Add PCI command activation to all PCI drivers as required for coreboot

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and maybe some other firmwares.
This commit is contained in:
Vladimir Serbinenko 2013-11-26 14:21:11 +01:00
parent 9208367d3f
commit 1e4b358720
7 changed files with 55 additions and 18 deletions
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8
grub-core/disk/pata.c
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@ -402,9 +402,15 @@ grub_pata_pciinit (grub_pci_device_t dev,
bar2 = grub_pci_read (addr);
/* Check if the BARs describe an IO region. */
if ((bar1 & 1) && (bar2 & 1))
if ((bar1 & 1) && (bar2 & 1) && (bar1 & ~3))
{
rega = bar1 & ~3;
addr = grub_pci_make_address (dev, GRUB_PCI_REG_COMMAND);
grub_pci_write_word (addr, grub_pci_read_word (addr)
| GRUB_PCI_COMMAND_IO_ENABLED
| GRUB_PCI_COMMAND_MEM_ENABLED
| GRUB_PCI_COMMAND_BUS_MASTER);
}
}