diff options
Diffstat (limited to 'src/soc/intel')
| -rw-r--r-- | src/soc/intel/xeon_sp/bootblock.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/src/soc/intel/xeon_sp/bootblock.c b/src/soc/intel/xeon_sp/bootblock.c index 5adda44d93..baf5ab5ad9 100644 --- a/src/soc/intel/xeon_sp/bootblock.c +++ b/src/soc/intel/xeon_sp/bootblock.c @@ -33,11 +33,20 @@ const FSPT_UPD temp_ram_init_params = { .UpdTerminator = 0x55AA, }; +static uint64_t assembly_timestamp; +static uint64_t bootblock_timestamp; + asmlinkage void bootblock_c_entry(uint64_t base_timestamp) { + /* + * FSP-T does not respect its own API and trashes registers + * coreboot uses to store its initial timestamp. + */ + assembly_timestamp = base_timestamp; + bootblock_timestamp = timestamp_get(); fast_spi_cache_bios_region(); - bootblock_main_with_basetime(base_timestamp); + bootblock_main_with_basetime(MIN(assembly_timestamp, bootblock_timestamp)); } void bootblock_soc_early_init(void) @@ -55,6 +64,10 @@ void bootblock_soc_init(void) { if (CONFIG(BOOTBLOCK_CONSOLE)) printk(BIOS_DEBUG, "FSP TempRamInit successful...\n"); + + if (assembly_timestamp > bootblock_timestamp) + printk(BIOS_WARNING, "Invalid initial timestamp detected\n"); + if (CONFIG(FSP_CAR)) report_fspt_output(); bootblock_pch_init(); |