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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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16
grub-core/bus/usb/ohci.c
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@ -265,16 +265,20 @@ grub_ohci_pci_iter (grub_pci_device_t dev, grub_pci_id_t pciid,
addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG0);
base = grub_pci_read (addr);
#if 0
/* Stop if there is no IO space base address defined. */
if (! (base & 1))
return 0;
#endif
base &= GRUB_PCI_ADDR_MEM_MASK;
if (!base)
{
grub_dprintf ("ehci",
"EHCI: EHCI is not mapper\n");
return 0;
}
/* Set bus master - needed for coreboot, VMware, broken BIOSes etc. */
addr = grub_pci_make_address (dev, GRUB_PCI_REG_COMMAND);
grub_pci_write_word(addr,
GRUB_PCI_COMMAND_BUS_MASTER | grub_pci_read_word(addr));
GRUB_PCI_COMMAND_MEM_ENABLED
| GRUB_PCI_COMMAND_BUS_MASTER
| grub_pci_read_word(addr));
grub_dprintf ("ohci", "class=0x%02x 0x%02x interface 0x%02x\n",
class, subclass, interf);