diff options
Diffstat (limited to 'src/drivers/intel/fsp1_1/car.c')
| -rw-r--r-- | src/drivers/intel/fsp1_1/car.c | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/src/drivers/intel/fsp1_1/car.c b/src/drivers/intel/fsp1_1/car.c index 9f87983668..aa728c708e 100644 --- a/src/drivers/intel/fsp1_1/car.c +++ b/src/drivers/intel/fsp1_1/car.c @@ -17,12 +17,27 @@ * Foundation, Inc. */ +#include <arch/early_variables.h> +#include <assets.h> #include <console/console.h> #include <ec/google/chromeec/ec.h> #include <fsp/car.h> +#include <fsp/util.h> #include <soc/intel/common/util.h> #include <timestamp.h> +FSP_INFO_HEADER *fih_car CAR_GLOBAL; + +/* Save FSP_INFO_HEADER for TempRamExit() call in assembly. */ +static inline void set_fih_car(FSP_INFO_HEADER *fih) +{ + /* This variable is written in the raw form because it's only + * ever accessed in code that that has the cache-as-ram enabled. The + * assembly routine which tears down cache-as-ram utilizes this + * variable for determining where to find FSP. */ + fih_car = fih; +} + asmlinkage void *cache_as_ram_main(struct cache_as_ram_params *car_params) { /* Initialize timestamp book keeping only once. */ @@ -52,13 +67,38 @@ asmlinkage void *cache_as_ram_main(struct cache_as_ram_params *car_params) car_mainboard_post_console_init(); /* Ensure the EC is in the right mode for recovery */ - if (IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC)) + if (IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC) && + !IS_ENABLED(CONFIG_SEPARATE_VERSTAGE)) google_chromeec_early_init(); + set_fih_car(car_params->fih); + /* Return new stack value in ram back to assembly stub. */ return cache_as_ram_stage_main(car_params->fih); } +/* Entry point taken when romstage is called after a separate verstage. */ +asmlinkage void *romstage_after_verstage(void) +{ + /* Need to locate the current FSP_INFO_HEADER. The cache-as-ram + * is still enabled. We can directly access work buffer here. */ + FSP_INFO_HEADER *fih; + struct asset fsp = ASSET_INIT(ASSET_REFCODE, "fsp.bin"); + + console_init(); + + if (asset_locate(&fsp)) { + fih = NULL; + printk(BIOS_ERR, "Unable to locate %s\n", asset_name(&fsp)); + } else + fih = find_fsp((uintptr_t)asset_mmap(&fsp)); + + set_fih_car(fih); + + /* Return new stack value in ram back to assembly stub. */ + return cache_as_ram_stage_main(fih); +} + asmlinkage void after_cache_as_ram(void *chipset_context) { timestamp_add_now(TS_FSP_TEMP_RAM_EXIT_END); |