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Diffstat (limited to 'src/soc/intel/skylake/pmc.c')
-rw-r--r--src/soc/intel/skylake/pmc.c96
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)
{
/*