diff options
4 files changed, 9 insertions, 0 deletions
diff --git a/src/mainboard/google/rex/variants/baseboard/ovis/devicetree.cb b/src/mainboard/google/rex/variants/baseboard/ovis/devicetree.cb index 6fc0dc029a..7d39ece8c0 100644 --- a/src/mainboard/google/rex/variants/baseboard/ovis/devicetree.cb +++ b/src/mainboard/google/rex/variants/baseboard/ovis/devicetree.cb @@ -36,6 +36,9 @@ chip soc/intel/meteorlake # Disable C1 C-state auto-demotion register "disable_c1_state_auto_demotion" = "1" + # Disable PKGC-state demotion + register "disable_package_c_state_demotion" = "1" + # Enable Energy Reporting register "pch_pm_energy_report_enable" = "1" diff --git a/src/mainboard/google/rex/variants/baseboard/rex/devicetree.cb b/src/mainboard/google/rex/variants/baseboard/rex/devicetree.cb index ec57ee7f46..5894fe637a 100644 --- a/src/mainboard/google/rex/variants/baseboard/rex/devicetree.cb +++ b/src/mainboard/google/rex/variants/baseboard/rex/devicetree.cb @@ -36,6 +36,9 @@ chip soc/intel/meteorlake # Disable C1 C-state auto-demotion register "disable_c1_state_auto_demotion" = "1" + # Disable PKGC-state demotion + register "disable_package_c_state_demotion" = "1" + # Enable Energy Reporting register "pch_pm_energy_report_enable" = "1" diff --git a/src/soc/intel/meteorlake/chip.h b/src/soc/intel/meteorlake/chip.h index ec38e80f05..6210406fc9 100644 --- a/src/soc/intel/meteorlake/chip.h +++ b/src/soc/intel/meteorlake/chip.h @@ -419,6 +419,8 @@ struct soc_intel_meteorlake_config { * Enable or Disable Package C-state Demotion. * Default is set to 0. * Set this to 1 in order to disable Package C-state demotion. + * NOTE: Un-Demotion from demoted Package C-state needs to be disabled + * when auto demotion is disabled. */ bool disable_package_c_state_demotion; diff --git a/src/soc/intel/meteorlake/fsp_params.c b/src/soc/intel/meteorlake/fsp_params.c index 5350783b00..5ec9cf423e 100644 --- a/src/soc/intel/meteorlake/fsp_params.c +++ b/src/soc/intel/meteorlake/fsp_params.c @@ -666,6 +666,7 @@ static void fill_fsps_misc_power_params(FSP_S_CONFIG *s_cfg, s_cfg->C1StateUnDemotion = !config->disable_c1_state_auto_demotion; s_cfg->C1StateAutoDemotion = !config->disable_c1_state_auto_demotion; s_cfg->PkgCStateDemotion = !config->disable_package_c_state_demotion; + s_cfg->PkgCStateUnDemotion = !config->disable_package_c_state_demotion; s_cfg->PmcV1p05PhyExtFetControlEn = 1; /* Enable PCH to CPU energy report feature. */ |