diff --git a/src/soc/intel/common/feature/finalize/Kconfig b/src/soc/intel/common/feature/finalize/Kconfig new file mode 100644 index 0000000000..87a48b22a4 --- /dev/null +++ b/src/soc/intel/common/feature/finalize/Kconfig @@ -0,0 +1,8 @@ +## SPDX-License-Identifier: GPL-2.0-only + +config SOC_INTEL_COMMON_FEATURE_FINALIZE + bool + help + Include common finalize implementation for Intel SoCs. This driver + consolidates the nearly identical finalize implementations across + Meteor Lake and Panther Lake platforms. diff --git a/src/soc/intel/common/feature/finalize/Makefile.mk b/src/soc/intel/common/feature/finalize/Makefile.mk new file mode 100644 index 0000000000..7f56bee857 --- /dev/null +++ b/src/soc/intel/common/feature/finalize/Makefile.mk @@ -0,0 +1,3 @@ +## SPDX-License-Identifier: GPL-2.0-only + +ramstage-$(CONFIG_SOC_INTEL_COMMON_FEATURE_FINALIZE) += finalize.c diff --git a/src/soc/intel/common/feature/finalize/finalize.c b/src/soc/intel/common/feature/finalize/finalize.c new file mode 100644 index 0000000000..7830fb8e63 --- /dev/null +++ b/src/soc/intel/common/feature/finalize/finalize.c @@ -0,0 +1,79 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* + * Common finalize implementation for Intel SoCs. + * This consolidates the nearly identical finalize.c implementations + * across Meteor Lake and Panther Lake platforms. + */ + +static void pch_finalize(void) +{ + /* TCO Lock down */ + tco_lockdown(); + + /* TODO: Add Thermal Configuration */ + + 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(PCI_DEVFN_TBT(i)); + if (dev) + pci_dev_disable_bus_master(dev); + } +} + +static void sa_finalize(void) +{ + if (get_lockdown_config() == CHIPSET_LOCKDOWN_COREBOOT) + sa_lock_pam(); +} + +static void heci_finalize(void) +{ + heci_set_to_d0i3(); + if (CONFIG(DISABLE_HECI1_AT_PRE_BOOT)) + heci1_disable(); +} + +static void soc_finalize(void *unused) +{ + printk(BIOS_DEBUG, "Finalizing chipset.\n"); + + pch_finalize(); + apm_control(APM_CNT_FINALIZE); + tbt_finalize(); + sa_finalize(); + if (CONFIG(USE_FSP_NOTIFY_PHASE_READY_TO_BOOT) && + CONFIG(USE_FSP_NOTIFY_PHASE_END_OF_FIRMWARE)) + heci_finalize(); + + /* Indicate finalize step with post code */ + post_code(POSTCODE_OS_BOOT); +} + +BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_ENTRY, soc_finalize, NULL); +/* + * The purpose of this change is to accommodate more time to push out sending + * CSE EOP messages at post. + */ +BOOT_STATE_INIT_ENTRY(BS_PAYLOAD_BOOT, BS_ON_ENTRY, soc_finalize, NULL);