| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <arch/romstage.h> |
| #include <console/console.h> |
| #include <cf9_reset.h> |
| #include <timestamp.h> |
| #include <cpu/x86/lapic.h> |
| #include <cbmem.h> |
| #include <commonlib/helpers.h> |
| #include <romstage_handoff.h> |
| #include <cpu/intel/haswell/haswell.h> |
| #include <northbridge/intel/haswell/haswell.h> |
| #include <northbridge/intel/haswell/raminit.h> |
| #include <southbridge/intel/lynxpoint/pch.h> |
| #include <southbridge/intel/lynxpoint/me.h> |
| |
| /* Copy SPD data for on-board memory */ |
| void __weak copy_spd(struct pei_data *peid) |
| { |
| } |
| |
| void __weak mb_late_romstage_setup(void) |
| { |
| } |
| |
| /* |
| * 0 = leave channel enabled |
| * 1 = disable dimm 0 on channel |
| * 2 = disable dimm 1 on channel |
| * 3 = disable dimm 0+1 on channel |
| */ |
| static int make_channel_disabled_mask(const struct pei_data *pd, int ch) |
| { |
| return (!pd->spd_addresses[ch + ch] << 0) | (!pd->spd_addresses[ch + ch + 1] << 1); |
| } |
| |
| /* The romstage entry point for this platform is not mainboard-specific, hence the name */ |
| void mainboard_romstage_entry(void) |
| { |
| int wake_from_s3; |
| |
| struct pei_data pei_data = { |
| .pei_version = PEI_VERSION, |
| .mchbar = (uintptr_t)DEFAULT_MCHBAR, |
| .dmibar = (uintptr_t)DEFAULT_DMIBAR, |
| .epbar = DEFAULT_EPBAR, |
| .pciexbar = CONFIG_MMCONF_BASE_ADDRESS, |
| .smbusbar = SMBUS_IO_BASE, |
| .hpet_address = HPET_ADDR, |
| .rcba = (uintptr_t)DEFAULT_RCBA, |
| .pmbase = DEFAULT_PMBASE, |
| .gpiobase = DEFAULT_GPIOBASE, |
| .temp_mmio_base = 0xfed08000, |
| .tseg_size = CONFIG_SMM_TSEG_SIZE, |
| .ddr_refresh_2x = CONFIG(ENABLE_DDR_2X_REFRESH), |
| .max_ddr3_freq = 1600, |
| }; |
| |
| mainboard_fill_pei_data(&pei_data); |
| |
| enable_lapic(); |
| |
| wake_from_s3 = early_pch_init(); |
| |
| /* Perform some early chipset initialization required |
| * before RAM initialization can work |
| */ |
| haswell_early_initialization(); |
| printk(BIOS_DEBUG, "Back from haswell_early_initialization()\n"); |
| |
| if (wake_from_s3) { |
| #if CONFIG(HAVE_ACPI_RESUME) |
| printk(BIOS_DEBUG, "Resume from S3 detected.\n"); |
| #else |
| printk(BIOS_DEBUG, "Resume from S3 detected, but disabled.\n"); |
| wake_from_s3 = 0; |
| #endif |
| } |
| |
| /* Prepare USB controller early in S3 resume */ |
| if (wake_from_s3) |
| enable_usb_bar(); |
| |
| post_code(0x3a); |
| |
| /* MRC has hardcoded assumptions of 2 meaning S3 wake. Normalize it here. */ |
| pei_data.boot_mode = wake_from_s3 ? 2 : 0; |
| |
| /* Calculate unimplemented DIMM slots for each channel */ |
| pei_data.dimm_channel0_disabled = make_channel_disabled_mask(&pei_data, 0); |
| pei_data.dimm_channel1_disabled = make_channel_disabled_mask(&pei_data, 1); |
| |
| timestamp_add_now(TS_BEFORE_INITRAM); |
| |
| report_platform_info(); |
| |
| copy_spd(&pei_data); |
| |
| sdram_initialize(&pei_data); |
| |
| timestamp_add_now(TS_AFTER_INITRAM); |
| |
| post_code(0x3b); |
| |
| intel_early_me_status(); |
| |
| if (!wake_from_s3) { |
| cbmem_initialize_empty(); |
| /* Save data returned from MRC on non-S3 resumes. */ |
| save_mrc_data(&pei_data); |
| } else if (cbmem_initialize()) { |
| #if CONFIG(HAVE_ACPI_RESUME) |
| /* Failed S3 resume, reset to come up cleanly */ |
| system_reset(); |
| #endif |
| } |
| |
| haswell_unhide_peg(); |
| |
| setup_sdram_meminfo(&pei_data); |
| |
| romstage_handoff_init(wake_from_s3); |
| |
| mb_late_romstage_setup(); |
| |
| post_code(0x3f); |
| } |