| /* SPDX-License-Identifier: GPL-2.0-only */ |
| #include <acpi/acpigen_pci.h> |
| #include <arch/ioapic.h> |
| #include <console/console.h> |
| #include <console/debug.h> |
| #include <cpu/x86/lapic.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include <device/pciexp.h> |
| #include <intelblocks/acpi.h> |
| #include <intelblocks/gpio.h> |
| #include <intelblocks/lpc_lib.h> |
| #include <intelblocks/p2sb.h> |
| #include <intelblocks/pcr.h> |
| #include <intelblocks/tco.h> |
| #include <soc/acpi.h> |
| #include <soc/chip_common.h> |
| #include <soc/crashlog.h> |
| #include <soc/numa.h> |
| #include <soc/p2sb.h> |
| #include <soc/pch.h> |
| #include <soc/soc_pch.h> |
| #include <soc/pci_devs.h> |
| #include <soc/ramstage.h> |
| #include <soc/soc_util.h> |
| #include <soc/util.h> |
| #include <soc/xhci.h> |
| |
| __weak void mainboard_silicon_init_params(FSPS_UPD *params) |
| { |
| } |
| |
| /* UPD parameters to be initialized before SiliconInit */ |
| void platform_fsp_silicon_init_params_cb(FSPS_UPD *silupd) |
| { |
| mainboard_silicon_init_params(silupd); |
| } |
| |
| static struct device_operations cpu_bus_ops = { |
| .read_resources = noop_read_resources, |
| .set_resources = noop_set_resources, |
| .init = mp_cpu_bus_init, |
| .acpi_fill_ssdt = generate_cpu_entries, |
| }; |
| |
| struct pci_operations soc_pci_ops = { |
| .set_subsystem = pci_dev_set_subsystem, |
| }; |
| |
| static void chip_enable_dev(struct device *dev) |
| { |
| /* Set the operations if it is a special bus type */ |
| if (dev->path.type == DEVICE_PATH_DOMAIN) { |
| /* domain ops are assigned at their creation */ |
| } else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) { |
| dev->ops = &cpu_bus_ops; |
| } else if (dev->path.type == DEVICE_PATH_GPIO) { |
| block_gpio_enable(dev); |
| } |
| } |
| |
| static void set_pcu_locks(void) |
| { |
| struct device *dev = NULL; |
| |
| while ((dev = dev_find_device(PCI_VID_INTEL, PCU_CR0_DEVID, dev))) { |
| printk(BIOS_SPEW, "%s: locking registers\n", dev_path(dev)); |
| pci_or_config32(dev, PCU_CR0_P_STATE_LIMITS, P_STATE_LIMITS_LOCK); |
| pci_or_config32(dev, PCU_CR0_PACKAGE_RAPL_LIMIT_UPR, |
| PKG_PWR_LIM_LOCK_UPR); |
| pci_or_config32(dev, PCU_CR0_TURBO_ACTIVATION_RATIO, |
| TURBO_ACTIVATION_RATIO_LOCK); |
| } |
| |
| dev = NULL; |
| while ((dev = dev_find_device(PCI_VID_INTEL, PCU_CR2_DEVID, dev))) { |
| printk(BIOS_SPEW, "%s: locking registers\n", dev_path(dev)); |
| pci_or_config32(dev, PCU_CR2_DRAM_POWER_INFO_UPR, |
| DRAM_POWER_INFO_LOCK_UPR); |
| pci_or_config32(dev, PCU_CR2_DRAM_PLANE_POWER_LIMIT_UPR, |
| PP_PWR_LIM_LOCK_UPR); |
| } |
| |
| dev = NULL; |
| while ((dev = dev_find_device(PCI_VID_INTEL, PCU_CR3_DEVID, dev))) { |
| printk(BIOS_SPEW, "%s: locking registers\n", dev_path(dev)); |
| pci_or_config32(dev, PCU_CR3_CONFIG_TDP_CONTROL, TDP_LOCK); |
| } |
| |
| dev = NULL; |
| while ((dev = dev_find_device(PCI_VID_INTEL, PCU_CR6_DEVID, dev))) { |
| printk(BIOS_SPEW, "%s: locking registers\n", dev_path(dev)); |
| pci_or_config32(dev, PCU_CR6_PLATFORM_RAPL_LIMIT_CFG_UPR, |
| PLT_PWR_LIM_LOCK_UPR); |
| pci_or_config32(dev, PCU_CR6_PLATFORM_POWER_INFO_CFG_UPR, |
| PLT_PWR_INFO_LOCK_UPR); |
| } |
| } |
| |
| static void chip_final(void *data) |
| { |
| /* Lock SBI */ |
| pci_or_config32(PCH_DEV_P2SB, P2SBC, SBILOCK); |
| |
| /* LOCK PAM */ |
| pci_or_config32(pcidev_path_on_root(PCI_DEVFN(0, 0)), 0x80, 1 << 0); |
| |
| set_pcu_locks(); |
| tco_lockdown(); |
| |
| p2sb_hide(); |
| |
| /* Accessing xHCI CSR needs to be done after PCI enumeration. */ |
| lock_oc_cfg(false); |
| mainboard_override_usb_oc(); |
| lock_oc_cfg(true); |
| /* Disable CPU Crashlog to avoid conflict between CPU Crashlog and BMC ACD. */ |
| disable_cpu_crashlog(); |
| |
| set_bios_init_completion(); |
| } |
| |
| static void chip_init(void *data) |
| { |
| printk(BIOS_DEBUG, "coreboot: calling fsp_silicon_init\n"); |
| fsp_silicon_init(); |
| |
| setup_pds(); |
| attach_iio_stacks(); |
| |
| override_hpet_ioapic_bdf(); |
| pch_enable_ioapic(); |
| pch_lock_dmictl(); |
| p2sb_unhide(); |
| lock_gpio(false); |
| mainboard_override_fsp_gpio(); |
| lock_gpio(true); |
| } |
| |
| struct chip_operations soc_intel_xeon_sp_spr_ops = { |
| .name = "Intel SapphireRapids-SP", |
| .enable_dev = chip_enable_dev, |
| .init = chip_init, |
| .final = chip_final, |
| }; |
| |
| void lock_gpio(bool lock) |
| { |
| if (lock) { |
| pcr_write32(gpio_get_pad_portid(GPPC_B0), PAD_CFG_LOCK_B, 0xffffffff); |
| pcr_write32(gpio_get_pad_portid(GPP_D0), PAD_CFG_LOCK_D, 0xffffffff); |
| } else { |
| pcr_write32(gpio_get_pad_portid(GPPC_B0), PAD_CFG_LOCK_B, 0); |
| pcr_write32(gpio_get_pad_portid(GPP_D0), PAD_CFG_LOCK_D, 0); |
| } |
| } |
| |
| /* Root Complex Event Collector */ |
| static void rcec_init(struct device *dev) |
| { |
| /* Set up RCEC EA extended capability, section 7.9.10 of PCIe 5.0 spec */ |
| const unsigned int rcecea_cap = |
| pciexp_find_extended_cap(dev, PCIE_EXT_CAP_RCECEA_ID, 0); |
| if (!rcecea_cap) |
| return; |
| |
| pci_devfn_t ecrc_bdf = PCI_BDF(dev); |
| uint32_t ecrc_bus = (ecrc_bdf >> 20) & 0xFFF; |
| uint32_t ecrc_dev = (ecrc_bdf >> 15) & 0x1F; |
| |
| /* |
| * Find all CXL devices, and match them with RCEC. |
| * With CXL 1.1, the bus# of CXL device (RCiEP) is 1 bigger than |
| * the bus# of RCEC. |
| */ |
| uint32_t ep_bus; |
| uint8_t i; |
| for (i = 0; i < pds.num_pds; i++) { |
| if (pds.pds[i].pd_type == PD_TYPE_PROCESSOR) |
| continue; |
| ep_bus = PCI_BDF(pds.pds[i].dev) >> 20; |
| if (ep_bus == ecrc_bus + 1) |
| break; |
| } |
| if (i == pds.num_pds) |
| return; |
| |
| printk(BIOS_DEBUG, "ep_bus: %x, ecrc_dev: %x\n", ep_bus, ecrc_dev); |
| u32 rcecea_bitmap = 0x1 << ecrc_dev; |
| u32 rcecea_busnum = (ep_bus << 8) | (ep_bus << 16); |
| pci_write_config32(dev, rcecea_cap + PCI_RCECEA_BITMAP, rcecea_bitmap); |
| pci_write_config32(dev, rcecea_cap + PCI_RCECEA_BUSNUM, rcecea_busnum); |
| } |
| |
| #define SPR_IEH 0x0b23 |
| |
| static const unsigned short rcec_ids[] = { |
| SPR_IEH, |
| 0 |
| }; |
| |
| static struct device_operations rcec_ops = { |
| .read_resources = pci_dev_read_resources, |
| .set_resources = pci_dev_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .init = rcec_init, |
| .ops_pci = &soc_pci_ops, |
| }; |
| |
| static const struct pci_driver rcec_driver __pci_driver = { |
| .ops = &rcec_ops, |
| .vendor = PCI_VID_INTEL, |
| .devices = rcec_ids, |
| }; |