VIA_ACLINK_EN
pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN, 1); /* Assert low */
pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN | VIA_ACLINK_NRST, 1); /* Assert high */
pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN, 1); /* Assert low */
pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN, 1); /* Force no sync */
pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN | VIA_ACLINK_SYNC, 1); /* Sync */
pci_write_config(dev, VIA_ACLINKCTRL, VIA_ACLINK_EN, 1); /* Force no sync */
#define VIA_ACLINK_DESIRED (VIA_ACLINK_EN|VIA_ACLINK_NRST|VIA_ACLINK_VSR|VIA_ACLINK_SGD)