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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2014 Google Inc.
* Copyright (C) 2015 Intel Corp.
*
* 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.
*/
#include <arch/io.h>
#include <arch/acpi.h>
#include <cbmem.h>
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ops.h>
#include <elog.h>
#include <soc/iomap.h>
#include <soc/pm.h>
#include <stdint.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->gen_pmcon1 & RPS)
elog_add_event(ELOG_TYPE_RTC_RESET);
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_is_wakeup_s3() ? ACPI_S3 : ACPI_S5);
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);
}
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