diff options
Diffstat (limited to 'src/soc/intel/skylake/pmc.c')
| -rw-r--r-- | src/soc/intel/skylake/pmc.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/src/soc/intel/skylake/pmc.c b/src/soc/intel/skylake/pmc.c index b95441cc14..b62a28886b 100644 --- a/src/soc/intel/skylake/pmc.c +++ b/src/soc/intel/skylake/pmc.c @@ -39,12 +39,15 @@ #endif static const struct reg_script pch_pmc_misc_init_script[] = { - /* Setup SLP signal assertion, SLP_S4=4s, SLP_S3=50ms */ - REG_PCI_RMW16(GEN_PMCON_B, ~((3 << 4)|(1 << 10)), - (1 << 3)|(1 << 11)|(1 << 12)), + /* SLP_S4=4s, SLP_S3=50ms, disable SLP_X stretching after SUS loss. */ + REG_PCI_RMW16(GEN_PMCON_B, + ~(S4MAW_MASK | SLP_S3_MIN_ASST_WDTH_MASK), + S4MAW_4S | SLP_S3_MIN_ASST_WDTH_50MS | + DIS_SLP_X_STRCH_SUS_UP), + /* Enable SCI and clear SLP requests. */ REG_IO_RMW32(ACPI_BASE_ADDRESS + PM1_CNT, ~SLP_TYP, SCI_EN), /* Indicate DRAM init done for MRC */ - REG_PCI_OR8(GEN_PMCON_A, (1 << 23)), + REG_PCI_OR8(GEN_PMCON_A, DISB), REG_SCRIPT_END }; @@ -237,6 +240,8 @@ static void pmc_init(struct device *dev) /* Initialize power management */ pch_power_options(); + /* Note that certain bits may be cleared from running script as + * certain bit fields are write 1 to clear. */ reg_script_run_on_dev(dev, pch_pmc_misc_init_script); pch_set_acpi_mode(); |