| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2014 Google Inc. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; version 2 of |
| * the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, |
| * MA 02110-1301 USA |
| */ |
| |
| #include <arch/io.h> |
| #include <arch/acpi.h> |
| #include <stdint.h> |
| #include <console/console.h> |
| #include <cbmem.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ops.h> |
| #include <elog.h> |
| #include <baytrail/iomap.h> |
| #include <baytrail/pmc.h> |
| |
| static void log_power_and_resets(const struct chipset_power_state *ps) |
| { |
| if (ps->gen_pmcon1 & PWR_FLR) { |
| elog_add_event(ELOG_TYPE_POWER_FAIL); |
| elog_add_event(ELOG_TYPE_PWROK_FAIL); |
| } |
| |
| if (ps->gen_pmcon1 & SUS_PWR_FLR) { |
| elog_add_event(ELOG_TYPE_SUS_POWER_FAIL); |
| } |
| |
| if (ps->tco_sts & SECOND_TO_STS) { |
| elog_add_event(ELOG_TYPE_TCO_RESET); |
| } |
| |
| if (ps->pm1_sts & PRBTNOR_STS) { |
| elog_add_event(ELOG_TYPE_POWER_BUTTON_OVERRIDE); |
| } |
| |
| if (ps->gen_pmcon1 & SRS) { |
| elog_add_event(ELOG_TYPE_RESET_BUTTON); |
| } |
| |
| if (ps->gen_pmcon1 & GEN_RST_STS) { |
| elog_add_event(ELOG_TYPE_SYSTEM_RESET); |
| } |
| } |
| |
| static void log_wake_events(const struct chipset_power_state *ps) |
| { |
| const uint32_t pcie_wake_mask = PCI_EXP_STS | PCIE_WAKE3_STS | |
| PCIE_WAKE2_STS | PCIE_WAKE1_STS | |
| PCIE_WAKE0_STS; |
| uint32_t gpe0_sts; |
| uint32_t gpio_mask; |
| int i; |
| |
| /* Mask off disabled events. */ |
| gpe0_sts = ps->gpe0_sts & ps->gpe0_en; |
| |
| if (ps->pm1_sts & WAK_STS) { |
| elog_add_event_byte(ELOG_TYPE_ACPI_WAKE, |
| acpi_slp_type == 3 ? 3 : 5); |
| } |
| |
| if (ps->pm1_sts & PWRBTN_STS) { |
| elog_add_event_wake(ELOG_WAKE_SOURCE_PWRBTN, 0); |
| } |
| |
| if (ps->pm1_sts & RTC_STS) { |
| elog_add_event_wake(ELOG_WAKE_SOURCE_RTC, 0); |
| } |
| |
| if (gpe0_sts & PME_B0_EN) { |
| elog_add_event_wake(ELOG_WAKE_SOURCE_PME_INTERNAL, 0); |
| } |
| |
| if (gpe0_sts & pcie_wake_mask) { |
| elog_add_event_wake(ELOG_WAKE_SOURCE_PCIE, 0); |
| } |
| |
| gpio_mask = SUS_GPIO_STS0; |
| i = 0; |
| while (gpio_mask) { |
| if (gpio_mask & gpe0_sts) { |
| elog_add_event_wake(ELOG_WAKE_SOURCE_GPIO, i); |
| } |
| gpio_mask <<= 1; |
| i++; |
| } |
| } |
| |
| void southcluster_log_state(void) |
| { |
| struct chipset_power_state *ps = cbmem_find(CBMEM_ID_POWER_STATE); |
| |
| if (ps == NULL) { |
| printk(BIOS_DEBUG, "Not logging power state information. " |
| "Power state not found in cbmem.\n"); |
| return; |
| } |
| |
| log_power_and_resets(ps); |
| log_wake_events(ps); |
| } |