| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* This file is part of the coreboot project. */ |
| |
| #include <assert.h> |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <fsp/api.h> |
| #include <fsp/ppi/mp_service_ppi.h> |
| #include <fsp/util.h> |
| #include <intelblocks/lpss.h> |
| #include <intelblocks/xdci.h> |
| #include <intelpch/lockdown.h> |
| #include <soc/gpio_soc_defs.h> |
| #include <soc/intel/common/vbt.h> |
| #include <soc/pci_devs.h> |
| #include <soc/ramstage.h> |
| #include <soc/soc_chip.h> |
| #include <string.h> |
| |
| /* |
| * Chip config parameter PcieRpL1Substates uses (UPD value + 1) |
| * because UPD value of 0 for PcieRpL1Substates means disabled for FSP. |
| * In order to ensure that mainboard setting does not disable L1 substates |
| * incorrectly, chip config parameter values are offset by 1 with 0 meaning |
| * use FSP UPD default. get_l1_substate_control() ensures that the right UPD |
| * value is set in fsp_params. |
| * 0: Use FSP UPD default |
| * 1: Disable L1 substates |
| * 2: Use L1.1 |
| * 3: Use L1.2 (FSP UPD default) |
| */ |
| static int get_l1_substate_control(enum L1_substates_control ctl) |
| { |
| if ((ctl > L1_SS_L1_2) || (ctl == L1_SS_FSP_DEFAULT)) |
| ctl = L1_SS_L1_2; |
| return ctl - 1; |
| } |
| |
| static void parse_devicetree(FSP_S_CONFIG *params) |
| { |
| const struct soc_intel_tigerlake_config *config; |
| config = config_of_soc(); |
| |
| for (int i = 0; i < CONFIG_SOC_INTEL_I2C_DEV_MAX; i++) |
| params->SerialIoI2cMode[i] = config->SerialIoI2cMode[i]; |
| |
| for (int i = 0; i < CONFIG_SOC_INTEL_COMMON_BLOCK_GSPI_MAX; i++) { |
| params->SerialIoSpiMode[i] = config->SerialIoGSpiMode[i]; |
| params->SerialIoSpiCsMode[i] = config->SerialIoGSpiCsMode[i]; |
| params->SerialIoSpiCsState[i] = config->SerialIoGSpiCsState[i]; |
| } |
| |
| for (int i = 0; i < CONFIG_SOC_INTEL_UART_DEV_MAX; i++) |
| params->SerialIoUartMode[i] = config->SerialIoUartMode[i]; |
| } |
| |
| static const pci_devfn_t serial_io_dev[] = { |
| PCH_DEVFN_I2C0, |
| PCH_DEVFN_I2C1, |
| PCH_DEVFN_I2C2, |
| PCH_DEVFN_I2C3, |
| PCH_DEVFN_I2C4, |
| PCH_DEVFN_I2C5, |
| PCH_DEVFN_GSPI0, |
| PCH_DEVFN_GSPI1, |
| PCH_DEVFN_GSPI2, |
| PCH_DEVFN_GSPI3, |
| PCH_DEVFN_UART0, |
| PCH_DEVFN_UART1, |
| PCH_DEVFN_UART2 |
| }; |
| |
| /* UPD parameters to be initialized before SiliconInit */ |
| void platform_fsp_silicon_init_params_cb(FSPS_UPD *supd) |
| { |
| int i; |
| FSP_S_CONFIG *params = &supd->FspsConfig; |
| |
| struct device *dev; |
| struct soc_intel_tigerlake_config *config; |
| config = config_of_soc(); |
| |
| /* Parse device tree and enable/disable Serial I/O devices */ |
| parse_devicetree(params); |
| |
| /* Load VBT before devicetree-specific config. */ |
| params->GraphicsConfigPtr = (uintptr_t)vbt_get(); |
| |
| /* Check if IGD is present and fill Graphics init param accordingly */ |
| dev = pcidev_path_on_root(SA_DEVFN_IGD); |
| if (CONFIG(RUN_FSP_GOP) && dev && dev->enabled) |
| params->PeiGraphicsPeimInit = 1; |
| else |
| params->PeiGraphicsPeimInit = 0; |
| |
| /* Use coreboot MP PPI services if Kconfig is enabled */ |
| if (CONFIG(USE_INTEL_FSP_TO_CALL_COREBOOT_PUBLISH_MP_PPI)) { |
| params->CpuMpPpi = (uintptr_t) mp_fill_ppi_services_data(); |
| params->SkipMpInit = 0; |
| } else { |
| params->SkipMpInit = !CONFIG_USE_INTEL_FSP_MP_INIT; |
| } |
| |
| params->TcssAuxOri = config->TcssAuxOri; |
| for (i = 0; i < 8; i++) |
| params->IomTypeCPortPadCfg[i] = 0x09000000; |
| |
| /* Chipset Lockdown */ |
| if (get_lockdown_config() == CHIPSET_LOCKDOWN_COREBOOT) { |
| params->PchLockDownGlobalSmi = 0; |
| params->PchLockDownBiosInterface = 0; |
| params->PchUnlockGpioPads = 1; |
| params->RtcMemoryLock = 0; |
| } else { |
| params->PchLockDownGlobalSmi = 1; |
| params->PchLockDownBiosInterface = 1; |
| params->PchUnlockGpioPads = 0; |
| params->RtcMemoryLock = 1; |
| } |
| |
| /* USB */ |
| for (i = 0; i < ARRAY_SIZE(config->usb2_ports); i++) { |
| params->PortUsb20Enable[i] = config->usb2_ports[i].enable; |
| params->Usb2OverCurrentPin[i] = config->usb2_ports[i].ocpin; |
| params->Usb2PhyPetxiset[i] = config->usb2_ports[i].pre_emp_bias; |
| params->Usb2PhyTxiset[i] = config->usb2_ports[i].tx_bias; |
| params->Usb2PhyPredeemp[i] = config->usb2_ports[i].tx_emp_enable; |
| params->Usb2PhyPehalfbit[i] = config->usb2_ports[i].pre_emp_bit; |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(config->usb3_ports); i++) { |
| params->PortUsb30Enable[i] = config->usb3_ports[i].enable; |
| params->Usb3OverCurrentPin[i] = config->usb3_ports[i].ocpin; |
| if (config->usb3_ports[i].tx_de_emp) { |
| params->Usb3HsioTxDeEmphEnable[i] = 1; |
| params->Usb3HsioTxDeEmph[i] = config->usb3_ports[i].tx_de_emp; |
| } |
| if (config->usb3_ports[i].tx_downscale_amp) { |
| params->Usb3HsioTxDownscaleAmpEnable[i] = 1; |
| params->Usb3HsioTxDownscaleAmp[i] = |
| config->usb3_ports[i].tx_downscale_amp; |
| } |
| } |
| |
| /* RP Configs */ |
| for (i = 0; i < CONFIG_MAX_ROOT_PORTS; i++) { |
| params->PcieRpL1Substates[i] = |
| get_l1_substate_control(config->PcieRpL1Substates[i]); |
| params->PcieRpLtrEnable[i] = config->PcieRpLtrEnable[i]; |
| params->PcieRpAdvancedErrorReporting[i] = |
| config->PcieRpAdvancedErrorReporting[i]; |
| } |
| |
| /* Enable ClkReqDetect for enabled port */ |
| memcpy(params->PcieRpClkReqDetect, config->PcieRpClkReqDetect, |
| sizeof(config->PcieRpClkReqDetect)); |
| |
| /* Enable xDCI controller if enabled in devicetree and allowed */ |
| dev = pcidev_path_on_root(PCH_DEVFN_USBOTG); |
| if (dev) { |
| if (!xdci_can_enable()) |
| dev->enabled = 0; |
| params->XdciEnable = dev->enabled; |
| } else { |
| params->XdciEnable = 0; |
| } |
| |
| /* PCH UART selection for FSP Debug */ |
| params->SerialIoDebugUartNumber = CONFIG_UART_FOR_CONSOLE; |
| ASSERT(ARRAY_SIZE(params->SerialIoUartAutoFlow) > CONFIG_UART_FOR_CONSOLE); |
| params->SerialIoUartAutoFlow[CONFIG_UART_FOR_CONSOLE] = 0; |
| |
| /* SATA */ |
| dev = pcidev_path_on_root(PCH_DEVFN_SATA); |
| if (!dev) |
| params->SataEnable = 0; |
| else { |
| params->SataEnable = dev->enabled; |
| params->SataMode = config->SataMode; |
| params->SataSalpSupport = config->SataSalpSupport; |
| memcpy(params->SataPortsEnable, config->SataPortsEnable, |
| sizeof(params->SataPortsEnable)); |
| memcpy(params->SataPortsDevSlp, config->SataPortsDevSlp, |
| sizeof(params->SataPortsDevSlp)); |
| } |
| |
| /* LAN */ |
| dev = pcidev_path_on_root(PCH_DEVFN_GBE); |
| if (!dev) |
| params->PchLanEnable = 0; |
| else |
| params->PchLanEnable = dev->enabled; |
| |
| /* CNVi */ |
| dev = pcidev_path_on_root(PCH_DEVFN_CNVI_WIFI); |
| if (dev) |
| params->CnviMode = dev->enabled; |
| else |
| params->CnviMode = 0; |
| |
| /* Legacy 8254 timer support */ |
| params->Enable8254ClockGating = !CONFIG_USE_LEGACY_8254_TIMER; |
| params->Enable8254ClockGatingOnS3 = !CONFIG_USE_LEGACY_8254_TIMER; |
| |
| /* Enable Hybrid storage auto detection */ |
| params->HybridStorageMode = config->HybridStorageMode; |
| |
| /* USB4/TBT */ |
| for (i = 0; i < ARRAY_SIZE(params->ITbtPcieRootPortEn); i++) { |
| dev = pcidev_on_root(SA_DEV_SLOT_TBT, i); |
| if (dev) |
| params->ITbtPcieRootPortEn[i] = dev->enabled; |
| else |
| params->ITbtPcieRootPortEn[i] = 0; |
| } |
| |
| mainboard_silicon_init_params(params); |
| } |
| |
| /* Mainboard GPIO Configuration */ |
| __weak void mainboard_silicon_init_params(FSP_S_CONFIG *params) |
| { |
| printk(BIOS_DEBUG, "WEAK: %s/%s called\n", __FILE__, __func__); |
| } |
| |
| /* Return list of SOC LPSS controllers */ |
| const pci_devfn_t *soc_lpss_controllers_list(size_t *size) |
| { |
| *size = ARRAY_SIZE(serial_io_dev); |
| return serial_io_dev; |
| } |