5 static unsigned get_sbdn(unsigned bus)
10 * There can only be one 8111 on a hypertransport chain/bus.
12 dev = pci_locate_device_on_bus(
13 PCI_ID(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_PCI),
16 return (dev>>15) & 0x1f;
20 static void enable_cf9_x(unsigned sbbusn, unsigned sbdn)
25 dev = PCI_DEV(sbbusn, sbdn+1, 3); //ACPI
27 byte = pci_read_config8(dev, 0x41);
28 byte |= (1<<6) | (1<<5);
29 pci_write_config8(dev, 0x41, byte);
32 static void enable_cf9(void)
34 unsigned sblk = get_sblk();
35 unsigned sbbusn = get_sbbusn(sblk);
36 unsigned sbdn = get_sbdn(sbbusn);
38 enable_cf9_x(sbbusn, sbdn);
46 outb(0x0e, 0x0cf9); // make sure cf9 is enabled
49 void enable_fid_change_on_sb(unsigned sbbusn, unsigned sbdn)
53 dev = PCI_DEV(sbbusn, sbdn+1, 3); // ACPI
55 pci_write_config8(dev, 0x74, 4);
57 /* set VFSMAF ( VID/FID System Management Action Field) to 2 */
58 pci_write_config32(dev, 0x70, 2<<12);
62 static void soft_reset_x(unsigned sbbusn, unsigned sbdn)
66 dev = PCI_DEV(sbbusn, sbdn+1, 0); //ISA
70 pci_write_config8(dev, 0x47, 1);
77 unsigned sblk = get_sblk();
78 unsigned sbbusn = get_sbbusn(sblk);
79 unsigned sbdn = get_sbdn(sbbusn);
81 return soft_reset_x(sbbusn, sbdn);