Author: stepan Date: 2010-01-17 14:54:08 +0100 (Sun, 17 Jan 2010) New Revision: 5030
Modified: trunk/src/devices/pciexp_device.c Log: Initial PCIe tuning: Enable Active State Power Management (ASPM) Signed-off-by: Stefan Reinauer <[email protected]> Acked-by: Ronald G. Minnich <[email protected]> Acked-by: Peter Stuge <[email protected]> Modified: trunk/src/devices/pciexp_device.c =================================================================== --- trunk/src/devices/pciexp_device.c 2010-01-17 13:52:50 UTC (rev 5029) +++ trunk/src/devices/pciexp_device.c 2010-01-17 13:54:08 UTC (rev 5030) @@ -34,8 +34,16 @@ /* 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, -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
