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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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13
grub-core/bus/usb/uhci.c
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@ -217,12 +217,6 @@ grub_uhci_pci_iter (grub_pci_device_t dev,
if (class != 0x0c || subclass != 0x03 || interf != 0x00)
return 0;
/* Set bus master - needed for coreboot or broken BIOSes */
addr = grub_pci_make_address (dev, GRUB_PCI_REG_COMMAND);
grub_pci_write_word(addr, GRUB_PCI_COMMAND_IO_ENABLED
| GRUB_PCI_COMMAND_BUS_MASTER
| grub_pci_read_word (addr));
/* Determine IO base address. */
addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG4);
base = grub_pci_read (addr);
@ -233,6 +227,13 @@ grub_uhci_pci_iter (grub_pci_device_t dev,
if ((base & GRUB_UHCI_IOMASK) == 0)
return 0;
/* Set bus master - needed for coreboot or broken BIOSes */
addr = grub_pci_make_address (dev, GRUB_PCI_REG_COMMAND);
grub_pci_write_word(addr, GRUB_PCI_COMMAND_IO_ENABLED
| GRUB_PCI_COMMAND_BUS_MASTER
| GRUB_PCI_COMMAND_MEM_ENABLED
| grub_pci_read_word (addr));
grub_dprintf ("uhci", "base = %x\n", base);
/* Allocate memory for the controller and register it. */