2020-09-27 08:00:58 +02:00
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/* SPDX-License-Identifier: GPL-2.0-only */
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#include <bootstate.h>
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#include <console/console.h>
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#include <stdint.h>
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#include <elog.h>
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#include <intelblocks/pmclib.h>
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#include <soc/pci_devs.h>
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#include <soc/pm.h>
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static void pch_log_gpio_gpe(u32 gpe0_sts, u32 gpe0_en, int start)
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{
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int i;
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gpe0_sts &= gpe0_en;
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for (i = 0; i <= 31; i++) {
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if (gpe0_sts & (1 << i))
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elog_add_event_wake(ELOG_WAKE_SOURCE_GPE, i + start);
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}
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}
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2021-01-22 06:52:43 +01:00
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static void pch_log_wake_source(const struct chipset_power_state *ps)
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2020-09-27 08:00:58 +02:00
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{
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/* Power Button */
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if (ps->pm1_sts & PWRBTN_STS)
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elog_add_event_wake(ELOG_WAKE_SOURCE_PWRBTN, 0);
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/* RTC */
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if (ps->pm1_sts & RTC_STS)
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elog_add_event_wake(ELOG_WAKE_SOURCE_RTC, 0);
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/* PCI Express (TODO: determine wake device) */
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if (ps->pm1_sts & PCIEXPWAK_STS)
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elog_add_event_wake(ELOG_WAKE_SOURCE_PCIE, 0);
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/* PME (TODO: determine wake device) */
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if (ps->gpe0_sts[GPE_STD] & PME_STS)
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elog_add_event_wake(ELOG_WAKE_SOURCE_PME, 0);
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/* Internal PME (TODO: determine wake device) */
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if (ps->gpe0_sts[GPE_STD] & PME_B0_STS)
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elog_add_event_wake(ELOG_WAKE_SOURCE_PME_INTERNAL, 0);
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/* SMBUS Wake */
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if (ps->gpe0_sts[GPE_STD] & SMB_WAK_STS)
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elog_add_event_wake(ELOG_WAKE_SOURCE_SMBUS, 0);
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/* Log GPIO events in set 1-3 */
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pch_log_gpio_gpe(ps->gpe0_sts[GPE_31_0], ps->gpe0_en[GPE_31_0], 0);
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pch_log_gpio_gpe(ps->gpe0_sts[GPE_63_32], ps->gpe0_en[GPE_63_32], 32);
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pch_log_gpio_gpe(ps->gpe0_sts[GPE_95_64], ps->gpe0_en[GPE_95_64], 64);
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/* Treat the STD as an extension of GPIO to obtain visibility. */
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pch_log_gpio_gpe(ps->gpe0_sts[GPE_STD], ps->gpe0_en[GPE_STD], 96);
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}
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2021-01-22 06:52:43 +01:00
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static void pch_log_power_and_resets(const struct chipset_power_state *ps)
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2020-09-27 08:00:58 +02:00
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{
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/* Thermal Trip */
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if (ps->gblrst_cause[0] & GBLRST_CAUSE0_THERMTRIP)
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elog_add_event(ELOG_TYPE_THERM_TRIP);
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/* CSME-Initiated Host Reset with power down */
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if (ps->hpr_cause0 & HPR_CAUSE0_MI_HRPD)
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elog_add_event(ELOG_TYPE_MI_HRPD);
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/* CSME-Initiated Host Reset with power cycle */
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if (ps->hpr_cause0 & HPR_CAUSE0_MI_HRPC)
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elog_add_event(ELOG_TYPE_MI_HRPC);
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/* CSME-Initiated Host Reset without power cycle */
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if (ps->hpr_cause0 & HPR_CAUSE0_MI_HR)
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elog_add_event(ELOG_TYPE_MI_HR);
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/* PWR_FLR Power Failure */
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if (ps->gen_pmcon_a & PWR_FLR)
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elog_add_event(ELOG_TYPE_POWER_FAIL);
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/* SUS Well Power Failure */
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if (ps->gen_pmcon_a & SUS_PWR_FLR)
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elog_add_event(ELOG_TYPE_SUS_POWER_FAIL);
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/* TCO Timeout */
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if (ps->prev_sleep_state != ACPI_S3 &&
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ps->tco2_sts & TCO_STS_SECOND_TO)
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elog_add_event(ELOG_TYPE_TCO_RESET);
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/* Power Button Override */
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if (ps->pm1_sts & PRBTNOR_STS)
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elog_add_event(ELOG_TYPE_POWER_BUTTON_OVERRIDE);
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/* RTC reset */
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if (ps->gen_pmcon_b & RTC_BATTERY_DEAD)
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elog_add_event(ELOG_TYPE_RTC_RESET);
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/* Host Reset Status */
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if (ps->gen_pmcon_a & HOST_RST_STS)
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elog_add_event(ELOG_TYPE_SYSTEM_RESET);
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/* ACPI Wake Event */
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if (ps->prev_sleep_state != ACPI_S0)
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elog_add_event_byte(ELOG_TYPE_ACPI_WAKE, ps->prev_sleep_state);
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}
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static void pch_log_state(void *unused)
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{
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struct chipset_power_state *ps = pmc_get_power_state();
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if (!ps) {
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printk(BIOS_ERR, "chipset_power_state not found!\n");
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return;
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}
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/* Power and Reset */
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pch_log_power_and_resets(ps);
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/* Wake Sources */
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if (ps->prev_sleep_state > ACPI_S0)
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pch_log_wake_source(ps);
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}
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BOOT_STATE_INIT_ENTRY(BS_DEV_INIT, BS_ON_EXIT, pch_log_state, NULL);
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void elog_gsmi_cb_platform_log_wake_source(void)
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{
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struct chipset_power_state ps;
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pmc_fill_pm_reg_info(&ps);
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pch_log_wake_source(&ps);
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}
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