diff options
Diffstat (limited to 'src/drivers')
| -rw-r--r-- | src/drivers/intel/fsp2_0/Kconfig | 12 | ||||
| -rw-r--r-- | src/drivers/intel/fsp2_0/memory_init.c | 3 |
2 files changed, 9 insertions, 6 deletions
diff --git a/src/drivers/intel/fsp2_0/Kconfig b/src/drivers/intel/fsp2_0/Kconfig index 3caa04ac25..00bfd67b50 100644 --- a/src/drivers/intel/fsp2_0/Kconfig +++ b/src/drivers/intel/fsp2_0/Kconfig @@ -132,12 +132,14 @@ config FSP_USES_CB_STACK config FSP_TEMP_RAM_SIZE hex - depends on FSP_USES_CB_STACK help - The amount of anticipated heap usage in CAR by FSP to setup HOB. - This configuration is applicable for FSP specification using shared - stack with coreboot/bootloader. - Sync this value with Platform FSP integration guide recommendation. + The amount of memory coreboot reserves for the FSP to use. In the + case of FSP 2.1 and newer that share the stack with coreboot instead + of having its own stack, this is the amount of anticipated heap usage + in CAR by FSP to setup HOB and needs to be the recommended value from + the Platform FSP integration guide. In the case of the FSP having its + own stack that will be placed in DRAM and not in CAR, this is the + amount of memory the FSP needs for its stack and heap. config FSP2_0_USES_TPM_MRC_HASH bool diff --git a/src/drivers/intel/fsp2_0/memory_init.c b/src/drivers/intel/fsp2_0/memory_init.c index 7f5d389592..57a052037e 100644 --- a/src/drivers/intel/fsp2_0/memory_init.c +++ b/src/drivers/intel/fsp2_0/memory_init.c @@ -184,8 +184,9 @@ static enum cb_err fsp_fill_common_arch_params(FSPM_ARCH_UPD *arch_upd, * top and does not reinitialize stack pointer. The parameters passed * as StackBase and StackSize are actually for temporary RAM and HOBs * and are not related to FSP stack at all. + * Non-CAR FSP 2.0 platforms pass a DRAM location for the FSP stack. */ - if (CONFIG(FSP_USES_CB_STACK)) { + if (CONFIG(FSP_USES_CB_STACK) || !ENV_CACHE_AS_RAM) { arch_upd->StackBase = temp_ram; arch_upd->StackSize = sizeof(temp_ram); } else if (setup_fsp_stack_frame(arch_upd, memmap)) { |