diff options
Diffstat (limited to 'src/soc/intel/cannonlake/cpu.c')
| -rw-r--r-- | src/soc/intel/cannonlake/cpu.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/soc/intel/cannonlake/cpu.c b/src/soc/intel/cannonlake/cpu.c index b8a2c8ceb5..53757f52ca 100644 --- a/src/soc/intel/cannonlake/cpu.c +++ b/src/soc/intel/cannonlake/cpu.c @@ -162,14 +162,14 @@ static void per_cpu_smm_trigger(void) void smm_lock(void) { - struct device *sa_dev = pcidev_path_on_root(SA_DEVFN_ROOT); /* * LOCK the SMM memory window and enable normal SMM. * After running this function, only a full reset can - * make the SMM registers writable again. + * make the SMM registers writable again. D_LCK bit + * requires the PCI 0xcf8/0xcfc I/O access. */ printk(BIOS_DEBUG, "Locking SMM.\n"); - pci_write_config8(sa_dev, SMRAM, D_LCK | G_SMRAME | C_BASE_SEG); + pci_io_write_config8(SA_DEVFN_ROOT, SMRAM, D_LCK | G_SMRAME | C_BASE_SEG); } static void post_mp_init(void) |