coreboot

* Skip if ME is already unlocked or inoperable.

*/

union me_hfs hfs;

int32_t me_sig = pci_s_read_config32(PCH_ME_DEV, PCI_VENDOR_ID);

hfs.raw = pci_s_read_config32(PCH_ME_DEV, PCI_ME_HFS);

if (me_sig != -1 &&

hfs.working_state != 4 &&

hfs.operation_mode != ME_HFS_MODE_DEBUG) {

printk(BIOS_INFO, "Unlocking ME, system will restart... ");

mainboard_unlock_me(1);

udelay(8);

full_reset();

} else {

printk(BIOS_INFO, "ME unlocked or inop. ");