diff options
Diffstat (limited to 'drivers/pci/rom.c')
| -rw-r--r-- | drivers/pci/rom.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/pci/rom.c b/drivers/pci/rom.c index eb0ad530dc43..3eea7fc5e1a2 100644 --- a/drivers/pci/rom.c +++ b/drivers/pci/rom.c @@ -31,6 +31,11 @@ int pci_enable_rom(struct pci_dev *pdev) if (!res->flags) return -1; + /* + * Ideally pci_update_resource() would update the ROM BAR address, + * and we would only set the enable bit here. But apparently some + * devices have buggy ROM BARs that read as zero when disabled. + */ pcibios_resource_to_bus(pdev->bus, ®ion, res); pci_read_config_dword(pdev, pdev->rom_base_reg, &rom_addr); rom_addr &= ~PCI_ROM_ADDRESS_MASK; |