src/southbridge/intel/bd82x6x/elog.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <arch/io.h>
   4 #include <acpi/acpi.h>
   5 #include <device/device.h>
   6 #include <device/pci.h>
   7 #include <device/pci_ops.h>
   8 #include <stdint.h>
   9 #include <elog.h>
  10 #include <southbridge/intel/common/pmutil.h>
  11 #include "pch.h"
  12
  13 void pch_log_state(void)
  14 {
  15         u16 pm1_sts, gen_pmcon_3, tco2_sts;
  16         u32 gpe0_sts, gpe0_en;
  17         u8 gen_pmcon_2;
  18         int i;
  19         struct device *lpc = pcidev_on_root(0x1f, 0);
  20         if (!lpc)
  21                 return;
  22
  23         pm1_sts = inw(DEFAULT_PMBASE + PM1_STS);
  24         gpe0_sts = inl(DEFAULT_PMBASE + GPE0_STS);
  25         gpe0_en = inl(DEFAULT_PMBASE + GPE0_EN);
  26         tco2_sts = inw(DEFAULT_PMBASE + TCO2_STS);
  27         gen_pmcon_2 = pci_read_config8(lpc, GEN_PMCON_2);
  28         gen_pmcon_3 = pci_read_config16(lpc, GEN_PMCON_3);
  29
  30         /* PWR_FLR Power Failure */
  31         if (gen_pmcon_2 & (1 << 0))
  32                 elog_add_event(ELOG_TYPE_POWER_FAIL);
  33
  34         /* SUS Well Power Failure */
  35         if (gen_pmcon_3 & (1 << 14))
  36                 elog_add_event(ELOG_TYPE_SUS_POWER_FAIL);
  37
  38         /* SYS_PWROK Failure */
  39         if (gen_pmcon_2 & (1 << 1))
  40                 elog_add_event(ELOG_TYPE_SYS_PWROK_FAIL);
  41
  42         /* PWROK Failure */
  43         if (gen_pmcon_2 & (1 << 0))
  44                 elog_add_event(ELOG_TYPE_PWROK_FAIL);
  45
  46         /* Second TCO Timeout */
  47         if (tco2_sts & (1 << 1))
  48                 elog_add_event(ELOG_TYPE_TCO_RESET);
  49
  50         /* Power Button Override */
  51         if (pm1_sts & (1 << 11))
  52                 elog_add_event(ELOG_TYPE_POWER_BUTTON_OVERRIDE);
  53
  54         /* System Reset Status (reset button pushed) */
  55         if (gen_pmcon_2 & (1 << 4))
  56                 elog_add_event(ELOG_TYPE_RESET_BUTTON);
  57
  58         /* General Reset Status */
  59         if (gen_pmcon_3 & (1 << 9))
  60                 elog_add_event(ELOG_TYPE_SYSTEM_RESET);
  61
  62         /* ACPI Wake */
  63         if (pm1_sts & (1 << 15))
  64                 elog_add_event_byte(ELOG_TYPE_ACPI_WAKE,
  65                                     acpi_is_wakeup_s3() ? 3 : 5);
  66
  67         /*
  68          * Wake sources
  69          */
  70
  71         /* RTC */
  72         if (pm1_sts & (1 << 10))
  73                 elog_add_event_wake(ELOG_WAKE_SOURCE_RTC, 0);
  74
  75         /* PCI Express (TODO: determine wake device) */
  76         if (pm1_sts & (1 << 14))
  77                 elog_add_event_wake(ELOG_WAKE_SOURCE_PCIE, 0);
  78
  79         /* PME (TODO: determine wake device) */
  80         if (gpe0_sts & (1 << 13))
  81                 elog_add_event_wake(ELOG_WAKE_SOURCE_PME, 0);
  82
  83         /* Internal PME (TODO: determine wake device) */
  84         if (gpe0_sts & (1 << 13))
  85                 elog_add_event_wake(ELOG_WAKE_SOURCE_PME_INTERNAL, 0);
  86
  87         /* GPIO 0-15 */
  88         for (i = 0; i < 16; i++) {
  89                 if ((gpe0_sts & (1 << (16+i))) && (gpe0_en & (1 << (16+i))))
  90                         elog_add_event_wake(ELOG_WAKE_SOURCE_GPE, i);
  91         }
  92
  93         /* SMBUS Wake */
  94         if (gpe0_sts & (1 << 7))
  95                 elog_add_event_wake(ELOG_WAKE_SOURCE_SMBUS, 0);
  96 }