soc/intel/alderlake: Add option to make MRC log silent
Typically, FSP-M aka MRC debug log level defaults to `3`
meaning prints all `Load, Error, Warnings & Info` messages.
Sometimes it's too much information to parse even when users
aren't required to have such detailed information hence,
implement `fsp_map_console_log_level()` that maps coreboot console
log level to FSP-M debug log level and suppress verbose MRC debug
messages unless caller selects `HAVE_DEBUG_RAM_SETUP` config and
then the user can enable `DEBUG_RAM_SETUP`.
TEST=FSP-M debug log suggested default `SerialDebugMrcLevel`
UPD value is `2`. While this patch selects `HAVE_DEBUG_RAM_SETUP`
and user to select `DEBUG_RAM_SETUP` config to override
`SerialDebugMrcLevel` UPD value to '5' aka verbose.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: Iea3b32feca0893a83fdf700798b0883d26ccc718
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60441
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
diff --git a/src/soc/intel/alderlake/Kconfig b/src/soc/intel/alderlake/Kconfig
index 0c68351..50c0c0b 100644
--- a/src/soc/intel/alderlake/Kconfig
+++ b/src/soc/intel/alderlake/Kconfig
@@ -43,6 +43,7 @@
select FSP_STATUS_GLOBAL_RESET_REQUIRED_3
select FSPS_HAS_ARCH_UPD
select GENERIC_GPIO_LIB
+ select HAVE_DEBUG_RAM_SETUP
select HAVE_FSP_GOP
select INTEL_DESCRIPTOR_MODE_CAPABLE
select HAVE_SMI_HANDLER
diff --git a/src/soc/intel/alderlake/romstage/fsp_params.c b/src/soc/intel/alderlake/romstage/fsp_params.c
index 8959bf7..0eeaabd 100644
--- a/src/soc/intel/alderlake/romstage/fsp_params.c
+++ b/src/soc/intel/alderlake/romstage/fsp_params.c
@@ -312,6 +312,9 @@
static void fill_fspm_trace_params(FSP_M_CONFIG *m_cfg,
const struct soc_intel_alderlake_config *config)
{
+ /* Set MRC debug level */
+ m_cfg->SerialDebugMrcLevel = fsp_map_console_log_level();
+
/* Set debug probe type */
m_cfg->PlatformDebugConsent = CONFIG_SOC_INTEL_ALDERLAKE_DEBUG_CONSENT;