| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2016-2017 Intel Corp. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #include <arch/early_variables.h> |
| #include <console/console.h> |
| #include <cbfs.h> |
| #include <cbmem.h> |
| #include "../chip.h" |
| #include <cpu/x86/cache.h> |
| #include <fsp/util.h> |
| #include <soc/pci_devs.h> |
| #include <soc/pm.h> |
| #include <soc/romstage.h> |
| #include <soc/reg_access.h> |
| |
| asmlinkage void *car_stage_c_entry(void) |
| { |
| struct postcar_frame pcf; |
| bool s3wake; |
| uintptr_t top_of_ram; |
| uintptr_t top_of_low_usable_memory; |
| |
| post_code(0x20); |
| console_init(); |
| |
| /* Initialize DRAM */ |
| s3wake = fill_power_state() == ACPI_S3; |
| fsp_memory_init(s3wake); |
| |
| /* Disable the ROM shadow 0x000e0000 - 0x000fffff */ |
| disable_rom_shadow(); |
| |
| /* Initialize the PCIe bridges */ |
| pcie_init(); |
| |
| if (postcar_frame_init(&pcf, 1*KiB)) |
| die("Unable to initialize postcar frame.\n"); |
| |
| /* Locate the top of RAM */ |
| top_of_low_usable_memory = (uintptr_t) cbmem_top(); |
| top_of_ram = ALIGN(top_of_low_usable_memory, 16 * MiB); |
| |
| /* Cache postcar and ramstage */ |
| postcar_frame_add_mtrr(&pcf, top_of_ram - (16 * MiB), 16 * MiB, |
| MTRR_TYPE_WRBACK); |
| |
| /* Cache RMU area */ |
| postcar_frame_add_mtrr(&pcf, (uintptr_t) top_of_low_usable_memory, |
| 0x10000, MTRR_TYPE_WRTHROUGH); |
| |
| /* Cache ESRAM */ |
| postcar_frame_add_mtrr(&pcf, 0x80000000, 0x80000, MTRR_TYPE_WRBACK); |
| |
| /* Cache SPI flash - Write protect not supported */ |
| postcar_frame_add_mtrr(&pcf, (uint32_t)(-CONFIG_ROM_SIZE), |
| CONFIG_ROM_SIZE, MTRR_TYPE_WRTHROUGH); |
| |
| run_postcar_phase(&pcf); |
| return NULL; |
| } |
| |
| static struct chipset_power_state power_state CAR_GLOBAL; |
| |
| struct chipset_power_state *get_power_state(void) |
| { |
| return (struct chipset_power_state *)car_get_var_ptr(&power_state); |
| } |
| |
| int fill_power_state(void) |
| { |
| struct chipset_power_state *ps = get_power_state(); |
| |
| ps->prev_sleep_state = 0; |
| printk(BIOS_SPEW, "prev_sleep_state %d\n", ps->prev_sleep_state); |
| return ps->prev_sleep_state; |
| } |
| |
| void platform_fsp_memory_init_params_cb(FSPM_UPD *fspm_upd, uint32_t version) |
| { |
| FSPM_ARCH_UPD *aupd; |
| const struct device *dev; |
| const struct soc_intel_quark_config *config; |
| char *rmu_file; |
| size_t rmu_file_len; |
| FSP_M_CONFIG *upd; |
| |
| /* Clear SMI and wake events */ |
| clear_smi_and_wake_events(); |
| |
| /* Locate the RMU data file in flash */ |
| rmu_file = cbfs_boot_map_with_leak("rmu.bin", CBFS_TYPE_RAW, |
| &rmu_file_len); |
| if (!rmu_file) |
| die("Microcode file (rmu.bin) not found."); |
| |
| /* Locate the configuration data from devicetree.cb */ |
| dev = dev_find_slot(0, LPC_DEV_FUNC); |
| if (!dev) |
| die("ERROR - LPC device not found!"); |
| config = dev->chip_info; |
| |
| /* Update the architectural UPD values. */ |
| aupd = &fspm_upd->FspmArchUpd; |
| aupd->BootLoaderTolumSize = cbmem_overhead_size(); |
| aupd->StackBase = (void *)(CONFIG_FSP_ESRAM_LOC - aupd->StackSize); |
| aupd->BootMode = FSP_BOOT_WITH_FULL_CONFIGURATION; |
| |
| /* Display the ESRAM layout */ |
| if (IS_ENABLED(CONFIG_DISPLAY_ESRAM_LAYOUT)) { |
| printk(BIOS_SPEW, "\nESRAM Layout:\n\n"); |
| printk(BIOS_SPEW, |
| "+-------------------+ 0x80080000 - ESRAM end\n"); |
| printk(BIOS_SPEW, "| FSP binary |\n"); |
| printk(BIOS_SPEW, |
| "+-------------------+ 0x%08x (CONFIG_FSP_ESRAM_LOC)\n", |
| CONFIG_FSP_ESRAM_LOC); |
| printk(BIOS_SPEW, "| FSP stack |\n"); |
| printk(BIOS_SPEW, "+-------------------+ 0x%p\n", |
| aupd->StackBase); |
| printk(BIOS_SPEW, "| |\n"); |
| printk(BIOS_SPEW, "+-------------------+ 0x%p\n", |
| _car_relocatable_data_end); |
| printk(BIOS_SPEW, "| coreboot data |\n"); |
| printk(BIOS_SPEW, "+-------------------+ 0x%p\n", |
| _car_stack_end); |
| printk(BIOS_SPEW, "| coreboot stack |\n"); |
| printk(BIOS_SPEW, |
| "+-------------------+ 0x80000000 - ESRAM start\n\n"); |
| } |
| |
| /* Update the UPD data for MemoryInit */ |
| upd = &fspm_upd->FspmConfig; |
| upd->AddrMode = config->AddrMode; |
| upd->ChanMask = config->ChanMask; |
| upd->ChanWidth = config->ChanWidth; |
| upd->DramDensity = config->DramDensity; |
| upd->DramRonVal = config->DramRonVal; |
| upd->DramRttNomVal = config->DramRttNomVal; |
| upd->DramRttWrVal = config->DramRttWrVal; |
| upd->DramSpeed = config->DramSpeed; |
| upd->DramType = config->DramType; |
| upd->DramWidth = config->DramWidth; |
| upd->EccScrubBlkSize = config->EccScrubBlkSize; |
| upd->EccScrubInterval = config->EccScrubInterval; |
| upd->Flags = config->Flags; |
| upd->FspReservedMemoryLength = config->FspReservedMemoryLength; |
| upd->RankMask = config->RankMask; |
| upd->RmuBaseAddress = (uintptr_t)rmu_file; |
| upd->RmuLength = rmu_file_len; |
| upd->SerialPortWriteChar = console_log_level(BIOS_SPEW) |
| ? (uintptr_t)fsp_write_line : 0; |
| upd->SmmTsegSize = IS_ENABLED(CONFIG_HAVE_SMI_HANDLER) ? |
| config->SmmTsegSize : 0; |
| upd->SocRdOdtVal = config->SocRdOdtVal; |
| upd->SocWrRonVal = config->SocWrRonVal; |
| upd->SocWrSlewRate = config->SocWrSlewRate; |
| upd->SrInt = config->SrInt; |
| upd->SrTemp = config->SrTemp; |
| upd->tCL = config->tCL; |
| upd->tFAW = config->tFAW; |
| upd->tRAS = config->tRAS; |
| upd->tRRD = config->tRRD; |
| upd->tWTR = config->tWTR; |
| } |