diff options
Diffstat (limited to 'src/soc/intel/quark/romstage/romstage.c')
| -rw-r--r-- | src/soc/intel/quark/romstage/romstage.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/soc/intel/quark/romstage/romstage.c b/src/soc/intel/quark/romstage/romstage.c index 62f8b212e5..c14acb768e 100644 --- a/src/soc/intel/quark/romstage/romstage.c +++ b/src/soc/intel/quark/romstage/romstage.c @@ -29,6 +29,7 @@ #include <soc/pm.h> #include <soc/romstage.h> #include <soc/reg_access.h> +#include <string.h> static const struct reg_script clear_smi_and_wake_events[] = { /* Clear any SMI or wake events */ @@ -65,6 +66,33 @@ static const struct reg_script hsuart_init[] = { REG_SCRIPT_END }; +asmlinkage void *car_state_c_entry(void) +{ + post_code(0x20); + if (IS_ENABLED(CONFIG_PLATFORM_USES_FSP1_1)) { + FSP_INFO_HEADER *fih; + struct cache_as_ram_params car_params = {0}; + void *top_of_stack; + + /* Copy the FSP binary into ESRAM */ + memcpy((void *)CONFIG_FSP_ESRAM_LOC, (void *)CONFIG_FSP_LOC, + 0x00040000); + + /* Locate the FSP header in ESRAM */ + fih = find_fsp(CONFIG_FSP_ESRAM_LOC); + + /* Start the early verstage/romstage code */ + post_code(0x2A); + car_params.fih = fih; + top_of_stack = cache_as_ram_main(&car_params); + + /* Initialize MTRRs and switch stacks after RAM initialized */ + return top_of_stack; + } + + return NULL; +} + void car_soc_pre_console_init(void) { /* Initialize the controllers */ |