diff options
Diffstat (limited to 'src/soc/intel/skylake/pmc.c')
| -rw-r--r-- | src/soc/intel/skylake/pmc.c | 96 |
1 files changed, 28 insertions, 68 deletions
diff --git a/src/soc/intel/skylake/pmc.c b/src/soc/intel/skylake/pmc.c index c382131ebd..7bdc7f33b8 100644 --- a/src/soc/intel/skylake/pmc.c +++ b/src/soc/intel/skylake/pmc.c @@ -47,6 +47,32 @@ void pmc_set_disb(void) pci_write_config32(dev, GEN_PMCON_A, disb_val); } +/* + * Set which power state system will be after reapplying + * the power (from G3 State) + */ +void pmc_soc_set_afterg3_en(const bool on) +{ + uint8_t reg8; +#if defined(__SIMPLE_DEVICE__) + const pci_devfn_t dev = PCH_DEV_PMC; +#else + const struct device *const dev = PCH_DEV_PMC; +#endif + + reg8 = pci_read_config8(dev, GEN_PMCON_B); + if (on) + reg8 &= ~SLEEP_AFTER_POWER_FAIL; + else + reg8 |= SLEEP_AFTER_POWER_FAIL; + pci_write_config8(dev, GEN_PMCON_B, reg8); +} + +void pmc_soc_restore_power_failure(void) +{ + pmc_set_power_failure_state(false); +} + #if ENV_RAMSTAGE /* Fill up PMC resource structure */ int pmc_soc_get_resources(struct pmc_resource_config *cfg) @@ -81,63 +107,6 @@ static const struct reg_script pmc_write1_to_clear_script[] = { REG_SCRIPT_END }; -/* - * Set which power state system will be after reapplying - * the power (from G3 State) - */ -static void pmc_set_afterg3(struct device *dev, int s5pwr) -{ - uint8_t reg8; - - reg8 = pci_read_config8(dev, GEN_PMCON_B); - - switch (s5pwr) { - case MAINBOARD_POWER_STATE_OFF: - reg8 |= 1; - break; - case MAINBOARD_POWER_STATE_ON: - reg8 &= ~1; - break; - case MAINBOARD_POWER_STATE_PREVIOUS: - default: - break; - } - - pci_write_config8(dev, GEN_PMCON_B, reg8); -} - -static void pch_power_options(struct device *dev) -{ - const char *state; - - const int pwr_on = CONFIG_MAINBOARD_POWER_FAILURE_STATE; - - /* - * Which state do we want to goto after g3 (power restored)? - * 0 == S5 Soft Off - * 1 == S0 Full On - * 2 == Keep Previous State - */ - switch (pwr_on) { - case MAINBOARD_POWER_STATE_OFF: - state = "off"; - break; - case MAINBOARD_POWER_STATE_ON: - state = "on"; - break; - case MAINBOARD_POWER_STATE_PREVIOUS: - state = "state keep"; - break; - default: - state = "undefined"; - } - pmc_set_afterg3(dev, pwr_on); - printk(BIOS_INFO, "Set power %s after power failure.\n", state); - - /* Set up GPE configuration. */ - pmc_gpe_init(); -} - static void config_deep_sX(uint32_t offset, uint32_t mask, int sx, int enable) { uint32_t reg; @@ -185,8 +154,8 @@ void pmc_soc_init(struct device *dev) rtc_init(); - /* Initialize power management */ - pch_power_options(dev); + pmc_set_power_failure_state(true); + pmc_gpe_init(); /* Note that certain bits may be cleared from running script as * certain bit fields are write 1 to clear. */ @@ -201,15 +170,6 @@ void pmc_soc_init(struct device *dev) reg_script_run_on_dev(dev, pmc_write1_to_clear_script); } -/* - * Set PMC register to know which state system should be after - * power reapplied - */ -void pmc_soc_restore_power_failure(void) -{ - pmc_set_afterg3(PCH_DEV_PMC, CONFIG_MAINBOARD_POWER_FAILURE_STATE); -} - static void pm1_enable_pwrbtn_smi(void *unused) { /* |