diff options
| -rw-r--r-- | src/devices/pciexp_device.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/devices/pciexp_device.c b/src/devices/pciexp_device.c index 461c3b6c7a..ea9c791272 100644 --- a/src/devices/pciexp_device.c +++ b/src/devices/pciexp_device.c @@ -34,8 +34,16 @@ static void pciexp_tune_dev(device_t dev) /* error... */ return; } - // printk_debug("PCIe: tuning %s\n", dev_path(dev)); - /* TODO: Implement PCI Express tuning. */ +#ifdef CONFIG_PCIE_TUNING + printk_debug("PCIe: tuning %s\n", dev_path(dev)); + + // TODO make this depending on ASPM + /* Enable ASPM Role Based Error Reporting */ + u32 reg32; + reg32 = pci_read_config32(dev, cap + PCI_EXP_DEVCAP); + reg32 |= PCI_EXP_DEVCAP_RBER; + pci_write_config32(dev, cap + PCI_EXP_DEVCAP, reg32); +#endif } unsigned int pciexp_scan_bus(struct bus *bus, |