diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/intel/alderlake/chip.h | 49 | ||||
| -rw-r--r-- | src/soc/intel/alderlake/fsp_params.c | 40 |
2 files changed, 89 insertions, 0 deletions
diff --git a/src/soc/intel/alderlake/chip.h b/src/soc/intel/alderlake/chip.h index 58daa252d7..709ab3cfc5 100644 --- a/src/soc/intel/alderlake/chip.h +++ b/src/soc/intel/alderlake/chip.h @@ -43,6 +43,35 @@ enum ddi_port_flags { DDI_ENABLE_HPD = 1 << 1, }; +/* + * Enable External V1P05/Vnn/VnnSx Rail in: BIT0:S0i1/S0i2, + * BIT1:S0i3, BIT2:S3, BIT3:S4, BIT4:S5 + */ +enum fivr_enable_states { + FIVR_ENABLE_S0i1_S0i2 = BIT(0), + FIVR_ENABLE_S0i3 = BIT(1), + FIVR_ENABLE_S3 = BIT(2), + FIVR_ENABLE_S4 = BIT(3), + FIVR_ENABLE_S5 = BIT(4), +}; + +/* + * Enable the following for External V1p05 rail + * BIT0: Retention active switch support + * BIT1: Normal Active voltage supported + * BIT2: Minimum active voltage supported + * BIT3: Minimum Retention voltage supported + */ +enum fivr_voltage_supported { + FIVR_RET_ACTIVE_SWITCH_SUPPORT = BIT(0), + FIVR_VOLTAGE_NORMAL = BIT(1), + FIVR_VOLTAGE_MIN_ACTIVE = BIT(2), + FIVR_VOLTAGE_MIN_RETENTION = BIT(3), +}; + +#define FIVR_ENABLE_ALL_SX (FIVR_ENABLE_S0i1_S0i2 | FIVR_ENABLE_S0i3 | \ + FIVR_ENABLE_S3 | FIVR_ENABLE_S4 | FIVR_ENABLE_S5) + struct soc_intel_alderlake_config { /* Common struct containing soc config data required by common code */ @@ -324,6 +353,26 @@ struct soc_intel_alderlake_config { ISA_SERIAL_BASE_ADDR_3F8, ISA_SERIAL_BASE_ADDR_2F8, } IsaSerialUartBase; + + /* structure containing various settings for PCH FIVRs */ + struct { + bool configure_ext_fivr; + enum fivr_enable_states v1p05_enable_bitmap; + enum fivr_enable_states vnn_enable_bitmap; + enum fivr_enable_states vnn_sx_enable_bitmap; + enum fivr_voltage_supported v1p05_supported_voltage_bitmap; + enum fivr_voltage_supported vnn_supported_voltage_bitmap; + /* V1p05 Rail Voltage in mv */ + int v1p05_voltage_mv; + /* Vnn Rail Voltage in mv */ + int vnn_voltage_mv; + /* VnnSx Rail Voltage in mv */ + int vnn_sx_voltage_mv; + /* External Icc Max for V1p05 rail in mA */ + int v1p05_icc_max_ma; + /* External Icc Max for VnnSx rail in mA */ + int vnn_icc_max_ma; + } ext_fivr_settings; }; typedef struct soc_intel_alderlake_config config_t; diff --git a/src/soc/intel/alderlake/fsp_params.c b/src/soc/intel/alderlake/fsp_params.c index e29133e188..5b0d63108b 100644 --- a/src/soc/intel/alderlake/fsp_params.c +++ b/src/soc/intel/alderlake/fsp_params.c @@ -549,6 +549,45 @@ static void fill_fsps_irq_params(FSP_S_CONFIG *s_cfg, printk(BIOS_INFO, "IRQ: Using dynamically assigned PCI IO-APIC IRQs\n"); } +static void fill_fsps_fivr_params(FSP_S_CONFIG *s_cfg, + const struct soc_intel_alderlake_config *config) +{ + /* PCH FIVR settings override */ + if (!config->ext_fivr_settings.configure_ext_fivr) + return; + + s_cfg->PchFivrExtV1p05RailEnabledStates = + config->ext_fivr_settings.v1p05_enable_bitmap; + + s_cfg->PchFivrExtV1p05RailSupportedVoltageStates = + config->ext_fivr_settings.v1p05_supported_voltage_bitmap; + + s_cfg->PchFivrExtVnnRailEnabledStates = + config->ext_fivr_settings.vnn_enable_bitmap; + + s_cfg->PchFivrExtVnnRailSupportedVoltageStates = + config->ext_fivr_settings.vnn_supported_voltage_bitmap; + + s_cfg->PchFivrExtVnnRailSxEnabledStates = + config->ext_fivr_settings.vnn_enable_bitmap; + + /* Convert the voltages to increments of 2.5mv */ + s_cfg->PchFivrExtV1p05RailVoltage = + (config->ext_fivr_settings.v1p05_voltage_mv * 10) / 25; + + s_cfg->PchFivrExtVnnRailVoltage = + (config->ext_fivr_settings.vnn_voltage_mv * 10) / 25; + + s_cfg->PchFivrExtVnnRailSxVoltage = + (config->ext_fivr_settings.vnn_sx_voltage_mv * 10 / 25); + + s_cfg->PchFivrExtV1p05RailIccMaximum = + config->ext_fivr_settings.v1p05_icc_max_ma; + + s_cfg->PchFivrExtVnnRailIccMaximum = + config->ext_fivr_settings.vnn_icc_max_ma; +} + static void arch_silicon_init_params(FSPS_ARCH_UPD *s_arch_cfg) { /* EnableMultiPhaseSiliconInit for running MultiPhaseSiInit */ @@ -583,6 +622,7 @@ static void soc_silicon_init_params(FSP_S_CONFIG *s_cfg, fill_fsps_pcie_params, fill_fsps_misc_power_params, fill_fsps_irq_params, + fill_fsps_fivr_params, }; for (size_t i = 0; i < ARRAY_SIZE(fill_fsps_params); i++) |