diff options
| -rw-r--r-- | src/soc/intel/tigerlake/finalize.c | 14 | ||||
| -rw-r--r-- | src/soc/intel/tigerlake/include/soc/pci_devs.h | 2 |
2 files changed, 16 insertions, 0 deletions
diff --git a/src/soc/intel/tigerlake/finalize.c b/src/soc/intel/tigerlake/finalize.c index 534abd9453..5bf01de7f0 100644 --- a/src/soc/intel/tigerlake/finalize.c +++ b/src/soc/intel/tigerlake/finalize.c @@ -67,12 +67,26 @@ static void pch_finalize(void) pmc_clear_pmcon_sts(); } +static void tbt_finalize(void) +{ + int i; + const struct device *dev; + + /* Disable Thunderbolt PCIe root ports bus master */ + for (i = 0; i < NUM_TBT_FUNCTIONS; i++) { + dev = pcidev_path_on_root(SA_DEVFN_TBT(i)); + if (dev) + pci_dev_disable_bus_master(dev); + } +} + static void soc_finalize(void *unused) { printk(BIOS_DEBUG, "Finalizing chipset.\n"); pch_finalize(); apm_control(APM_CNT_FINALIZE); + tbt_finalize(); /* Indicate finalize step with post code */ post_code(POST_OS_BOOT); diff --git a/src/soc/intel/tigerlake/include/soc/pci_devs.h b/src/soc/intel/tigerlake/include/soc/pci_devs.h index ee3e894a92..82d8360524 100644 --- a/src/soc/intel/tigerlake/include/soc/pci_devs.h +++ b/src/soc/intel/tigerlake/include/soc/pci_devs.h @@ -35,6 +35,8 @@ #define SA_DEV_IPU PCI_DEV(0, SA_DEV_SLOT_IPU, 0) #define SA_DEV_SLOT_TBT 0x07 +#define SA_DEVFN_TBT(x) PCI_DEVFN(SA_DEV_SLOT_TBT, (x)) +#define NUM_TBT_FUNCTIONS 4 #define SA_DEVFN_TBT0 PCI_DEVFN(SA_DEV_SLOT_TBT, 0) #define SA_DEVFN_TBT1 PCI_DEVFN(SA_DEV_SLOT_TBT, 1) #define SA_DEVFN_TBT2 PCI_DEVFN(SA_DEV_SLOT_TBT, 2) |