Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2012 The ChromiumOS Authors. All rights reserved. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 of the License. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 14 | */ |
| 15 | |
| 16 | #include <arch/io.h> |
| 17 | #include <arch/acpi.h> |
| 18 | #include <console/console.h> |
| 19 | #include <device/device.h> |
| 20 | #include <device/pci.h> |
| 21 | #include <device/pci_ops.h> |
| 22 | #include <stdint.h> |
| 23 | #include <string.h> |
| 24 | #include <elog.h> |
| 25 | #include "pch.h" |
| 26 | |
Duncan Laurie | d604090 | 2013-03-08 17:16:37 -0800 | [diff] [blame] | 27 | static void pch_log_standard_gpe(u32 gpe0_sts_reg, u32 gpe0_en_reg) |
| 28 | { |
| 29 | u32 gpe0_en = inl(get_pmbase() + gpe0_en_reg); |
| 30 | u32 gpe0_sts = inl(get_pmbase() + gpe0_sts_reg) & gpe0_en; |
| 31 | |
| 32 | /* PME (TODO: determine wake device) */ |
| 33 | if (gpe0_sts & (1 << 11)) |
| 34 | elog_add_event_wake(ELOG_WAKE_SOURCE_PME, 0); |
| 35 | |
| 36 | /* Internal PME (TODO: determine wake device) */ |
| 37 | if (gpe0_sts & (1 << 13)) |
| 38 | elog_add_event_wake(ELOG_WAKE_SOURCE_PME_INTERNAL, 0); |
| 39 | |
| 40 | /* SMBUS Wake */ |
| 41 | if (gpe0_sts & (1 << 7)) |
| 42 | elog_add_event_wake(ELOG_WAKE_SOURCE_SMBUS, 0); |
| 43 | } |
| 44 | |
| 45 | static void pch_log_gpio_gpe(u32 gpe0_sts_reg, u32 gpe0_en_reg, int start) |
| 46 | { |
| 47 | /* GPE Bank 1 is GPIO 0-31 */ |
| 48 | u32 gpe0_en = inl(get_pmbase() + gpe0_en_reg); |
| 49 | u32 gpe0_sts = inl(get_pmbase() + gpe0_sts_reg) & gpe0_en; |
| 50 | int i; |
| 51 | |
| 52 | for (i = 0; i <= 31; i++) { |
| 53 | if (gpe0_sts & (1 << i)) |
| 54 | elog_add_event_wake(ELOG_WAKE_SOURCE_GPIO, i + start); |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | static void pch_log_gpe(void) |
| 59 | { |
| 60 | int i; |
| 61 | u16 pmbase = get_pmbase(); |
| 62 | u32 gpe0_sts, gpe0_en; |
| 63 | int gpe0_high_gpios[] = { |
| 64 | [0] = 27, |
| 65 | [24] = 17, |
| 66 | [25] = 19, |
| 67 | [26] = 21, |
| 68 | [27] = 22, |
| 69 | [28] = 43, |
| 70 | [29] = 56, |
| 71 | [30] = 57, |
| 72 | [31] = 60 |
| 73 | }; |
| 74 | |
| 75 | pch_log_standard_gpe(GPE0_EN, GPE0_STS); |
| 76 | |
| 77 | /* GPIO 0-15 */ |
| 78 | gpe0_en = inw(pmbase + GPE0_EN + 2); |
| 79 | gpe0_sts = inw(pmbase + GPE0_STS + 2) & gpe0_en; |
| 80 | for (i = 0; i <= 15; i++) { |
| 81 | if (gpe0_sts & (1 << i)) |
| 82 | elog_add_event_wake(ELOG_WAKE_SOURCE_GPIO, i); |
| 83 | } |
| 84 | |
| 85 | /* |
| 86 | * Now check and log upper status bits |
| 87 | */ |
| 88 | |
| 89 | gpe0_en = inl(pmbase + GPE0_EN_2); |
| 90 | gpe0_sts = inl(pmbase + GPE0_STS_2) & gpe0_en; |
| 91 | |
| 92 | for (i = 0; i <= 31; i++) { |
| 93 | if (!gpe0_high_gpios[i]) |
| 94 | continue; |
| 95 | if (gpe0_sts & (1 << i)) |
| 96 | elog_add_event_wake(ELOG_WAKE_SOURCE_GPIO, |
| 97 | gpe0_high_gpios[i]); |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | static void pch_lp_log_gpe(void) |
| 102 | { |
| 103 | /* Standard GPE are in GPE set 4 */ |
| 104 | pch_log_standard_gpe(LP_GPE0_STS_4, LP_GPE0_EN_4); |
| 105 | |
| 106 | /* Log GPIO events in set 1-3 */ |
| 107 | pch_log_gpio_gpe(LP_GPE0_STS_1, LP_GPE0_EN_1, 0); |
| 108 | pch_log_gpio_gpe(LP_GPE0_STS_2, LP_GPE0_EN_2, 32); |
| 109 | pch_log_gpio_gpe(LP_GPE0_STS_3, LP_GPE0_EN_3, 64); |
| 110 | } |
| 111 | |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 112 | void pch_log_state(void) |
| 113 | { |
| 114 | u16 pm1_sts, gen_pmcon_3, tco2_sts; |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 115 | u8 gen_pmcon_2; |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 116 | struct device *lpc = dev_find_slot(0, PCI_DEVFN(0x1f, 0)); |
| 117 | if (!lpc) |
| 118 | return; |
| 119 | |
Duncan Laurie | d604090 | 2013-03-08 17:16:37 -0800 | [diff] [blame] | 120 | pm1_sts = inw(get_pmbase() + PM1_STS); |
| 121 | tco2_sts = inw(get_pmbase() + TCO2_STS); |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 122 | gen_pmcon_2 = pci_read_config8(lpc, GEN_PMCON_2); |
| 123 | gen_pmcon_3 = pci_read_config16(lpc, GEN_PMCON_3); |
| 124 | |
| 125 | /* PWR_FLR Power Failure */ |
| 126 | if (gen_pmcon_2 & (1 << 0)) |
| 127 | elog_add_event(ELOG_TYPE_POWER_FAIL); |
| 128 | |
| 129 | /* SUS Well Power Failure */ |
| 130 | if (gen_pmcon_3 & (1 << 14)) |
| 131 | elog_add_event(ELOG_TYPE_SUS_POWER_FAIL); |
| 132 | |
| 133 | /* SYS_PWROK Failure */ |
| 134 | if (gen_pmcon_2 & (1 << 1)) |
| 135 | elog_add_event(ELOG_TYPE_SYS_PWROK_FAIL); |
| 136 | |
| 137 | /* PWROK Failure */ |
| 138 | if (gen_pmcon_2 & (1 << 0)) |
| 139 | elog_add_event(ELOG_TYPE_PWROK_FAIL); |
| 140 | |
| 141 | /* Second TCO Timeout */ |
| 142 | if (tco2_sts & (1 << 1)) |
| 143 | elog_add_event(ELOG_TYPE_TCO_RESET); |
| 144 | |
| 145 | /* Power Button Override */ |
| 146 | if (pm1_sts & (1 << 11)) |
| 147 | elog_add_event(ELOG_TYPE_POWER_BUTTON_OVERRIDE); |
| 148 | |
| 149 | /* System Reset Status (reset button pushed) */ |
| 150 | if (gen_pmcon_2 & (1 << 4)) |
| 151 | elog_add_event(ELOG_TYPE_RESET_BUTTON); |
| 152 | |
| 153 | /* General Reset Status */ |
| 154 | if (gen_pmcon_3 & (1 << 9)) |
| 155 | elog_add_event(ELOG_TYPE_SYSTEM_RESET); |
| 156 | |
| 157 | /* ACPI Wake */ |
| 158 | if (pm1_sts & (1 << 15)) |
| 159 | elog_add_event_byte(ELOG_TYPE_ACPI_WAKE, |
Kyösti Mälkki | c3ed886 | 2014-06-19 19:50:51 +0300 | [diff] [blame] | 160 | acpi_is_wakeup_s3() ? 3 : 5); |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 161 | |
| 162 | /* |
| 163 | * Wake sources |
| 164 | */ |
| 165 | |
Duncan Laurie | d604090 | 2013-03-08 17:16:37 -0800 | [diff] [blame] | 166 | /* Power Button */ |
| 167 | if (pm1_sts & (1 << 8)) |
| 168 | elog_add_event_wake(ELOG_WAKE_SOURCE_PWRBTN, 0); |
| 169 | |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 170 | /* RTC */ |
| 171 | if (pm1_sts & (1 << 10)) |
| 172 | elog_add_event_wake(ELOG_WAKE_SOURCE_RTC, 0); |
| 173 | |
| 174 | /* PCI Express (TODO: determine wake device) */ |
| 175 | if (pm1_sts & (1 << 14)) |
| 176 | elog_add_event_wake(ELOG_WAKE_SOURCE_PCIE, 0); |
| 177 | |
Duncan Laurie | d604090 | 2013-03-08 17:16:37 -0800 | [diff] [blame] | 178 | /* GPE */ |
| 179 | if (pch_is_lp()) |
| 180 | pch_lp_log_gpe(); |
| 181 | else |
| 182 | pch_log_gpe(); |
Aaron Durbin | 76c3700 | 2012-10-30 09:03:43 -0500 | [diff] [blame] | 183 | } |