summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--src/soc/intel/cannonlake/Kconfig2
-rw-r--r--src/soc/intel/cannonlake/Makefile.inc4
-rw-r--r--src/soc/intel/cannonlake/bootblock/pch.c2
-rw-r--r--src/soc/intel/cannonlake/chip.h7
-rw-r--r--src/soc/intel/cannonlake/include/soc/gpe.h134
-rw-r--r--src/soc/intel/cannonlake/include/soc/pm.h118
-rw-r--r--src/soc/intel/cannonlake/include/soc/pmc.h16
-rw-r--r--src/soc/intel/cannonlake/include/soc/smbus.h4
-rw-r--r--src/soc/intel/cannonlake/pmutil.c217
-rw-r--r--src/soc/intel/cannonlake/romstage/power_state.c88
-rw-r--r--src/soc/intel/cannonlake/romstage/romstage.c9
11 files changed, 580 insertions, 21 deletions
diff --git a/src/soc/intel/cannonlake/Kconfig b/src/soc/intel/cannonlake/Kconfig
index fb2ed69794..4267ba95d5 100644
--- a/src/soc/intel/cannonlake/Kconfig
+++ b/src/soc/intel/cannonlake/Kconfig
@@ -7,6 +7,7 @@ if SOC_INTEL_CANNONLAKE
config CPU_SPECIFIC_OPTIONS
def_bool y
+ select ACPI_INTEL_HARDWARE_SLEEP_VALUES
select ARCH_BOOTBLOCK_X86_32
select ARCH_RAMSTAGE_X86_32
select ARCH_ROMSTAGE_X86_32
@@ -34,6 +35,7 @@ config CPU_SPECIFIC_OPTIONS
select SOC_INTEL_COMMON_BLOCK_GSPI
select SOC_INTEL_COMMON_BLOCK_LPSS
select SOC_INTEL_COMMON_BLOCK_PCR
+ select SOC_INTEL_COMMON_BLOCK_PMC
select SOC_INTEL_COMMON_BLOCK_RTC
select SOC_INTEL_COMMON_BLOCK_SA
select SOC_INTEL_COMMON_BLOCK_SMBUS
diff --git a/src/soc/intel/cannonlake/Makefile.inc b/src/soc/intel/cannonlake/Makefile.inc
index 8a83eb0578..10d444be4b 100644
--- a/src/soc/intel/cannonlake/Makefile.inc
+++ b/src/soc/intel/cannonlake/Makefile.inc
@@ -9,6 +9,7 @@ bootblock-$(CONFIG_DRIVERS_UART_8250MEM) += uart.c
bootblock-y += bootblock/bootblock.c
bootblock-y += bootblock/cpu.c
bootblock-y += bootblock/pch.c
+bootblock-y += pmutil.c
bootblock-y += bootblock/report_platform.c
bootblock-y += gpio.c
bootblock-y += gspi.c
@@ -18,6 +19,7 @@ bootblock-$(CONFIG_UART_DEBUG) += uart.c
romstage-y += gspi.c
romstage-y += memmap.c
+romstage-y += pmutil.c
romstage-y += reset.c
romstage-y += spi.c
romstage-$(CONFIG_UART_DEBUG) += uart.c
@@ -25,12 +27,14 @@ romstage-$(CONFIG_UART_DEBUG) += uart.c
ramstage-y += chip.c
ramstage-y += gspi.c
ramstage-y += memmap.c
+ramstage-y += pmutil.c
ramstage-$(CONFIG_PLATFORM_USES_FSP2_0) += reset.c
ramstage-y += spi.c
ramstage-y += systemagent.c
ramstage-$(CONFIG_UART_DEBUG) += uart.c
postcar-y += memmap.c
+postcar-y += pmutil.c
postcar-y += spi.c
postcar-$(CONFIG_UART_DEBUG) += uart.c
diff --git a/src/soc/intel/cannonlake/bootblock/pch.c b/src/soc/intel/cannonlake/bootblock/pch.c
index 21a06e4ff5..0062c0d61c 100644
--- a/src/soc/intel/cannonlake/bootblock/pch.c
+++ b/src/soc/intel/cannonlake/bootblock/pch.c
@@ -26,7 +26,7 @@
#include <soc/p2sb.h>
#include <soc/pci_devs.h>
#include <soc/pcr_ids.h>
-#include <soc/pmc.h>
+#include <soc/pm.h>
#include <soc/smbus.h>
#define PCR_PSF3_TO_SHDW_PMC_REG_BASE 0x1400
diff --git a/src/soc/intel/cannonlake/chip.h b/src/soc/intel/cannonlake/chip.h
index 67be85dd25..38f9a1ff7b 100644
--- a/src/soc/intel/cannonlake/chip.h
+++ b/src/soc/intel/cannonlake/chip.h
@@ -24,6 +24,13 @@
struct soc_intel_cannonlake_config {
/* GSPI */
struct gspi_cfg gspi[CONFIG_SOC_INTEL_COMMON_BLOCK_GSPI_MAX];
+
+ /* Gpio group routed to each dword of the GPE0 block. Values are
+ * of the form GPP_[A:G] or GPD. */
+ uint8_t gpe0_dw0; /* GPE0_31_0 STS/EN */
+ uint8_t gpe0_dw1; /* GPE0_63_32 STS/EN */
+ uint8_t gpe0_dw2; /* GPE0_95_64 STS/EN */
+
};
typedef struct soc_intel_cannonlake_config config_t;
diff --git a/src/soc/intel/cannonlake/include/soc/gpe.h b/src/soc/intel/cannonlake/include/soc/gpe.h
new file mode 100644
index 0000000000..521d523746
--- /dev/null
+++ b/src/soc/intel/cannonlake/include/soc/gpe.h
@@ -0,0 +1,134 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2015 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.
+ */
+
+#ifndef _SOC_GPE_H_
+#define _SOC_GPE_H_
+
+/* GPE_31_0 */
+#define GPE0_DW0_00 0
+#define GPE0_DW0_01 1
+#define GPE0_DW0_02 2
+#define GPE0_DW0_03 3
+#define GPE0_DW0_04 4
+#define GPE0_DW0_05 5
+#define GPE0_DW0_06 6
+#define GPE0_DW0_07 7
+#define GPE0_DW0_08 8
+#define GPE0_DW0_09 9
+#define GPE0_DW0_10 10
+#define GPE0_DW0_11 11
+#define GPE0_DW0_12 12
+#define GPE0_DW0_13 13
+#define GPE0_DW0_14 14
+#define GPE0_DW0_15 15
+#define GPE0_DW0_16 16
+#define GPE0_DW0_17 17
+#define GPE0_DW0_18 18
+#define GPE0_DW0_19 19
+#define GPE0_DW0_20 20
+#define GPE0_DW0_21 21
+#define GPE0_DW0_22 22
+#define GPE0_DW0_23 23
+#define GPE0_DW0_24 24
+#define GPE0_DW0_25 25
+#define GPE0_DW0_26 26
+#define GPE0_DW0_27 27
+#define GPE0_DW0_28 28
+#define GPE0_DW0_29 29
+#define GPE0_DW0_30 30
+#define GPE0_DW0_31 31
+/* GPE_63_32 */
+#define GPE0_DW1_00 32
+#define GPE0_DW1_01 33
+#define GPE0_DW1_02 34
+#define GPE0_DW1_03 36
+#define GPE0_DW1_04 36
+#define GPE0_DW1_05 37
+#define GPE0_DW1_06 38
+#define GPE0_DW1_07 39
+#define GPE0_DW1_08 40
+#define GPE0_DW1_09 41
+#define GPE0_DW1_10 42
+#define GPE0_DW1_11 43
+#define GPE0_DW1_12 44
+#define GPE0_DW1_13 45
+#define GPE0_DW1_14 46
+#define GPE0_DW1_15 47
+#define GPE0_DW1_16 48
+#define GPE0_DW1_17 49
+#define GPE0_DW1_18 50
+#define GPE0_DW1_19 51
+#define GPE0_DW1_20 52
+#define GPE0_DW1_21 53
+#define GPE0_DW1_22 54
+#define GPE0_DW1_23 55
+#define GPE0_DW1_24 56
+#define GPE0_DW1_25 57
+#define GPE0_DW1_26 58
+#define GPE0_DW1_27 59
+#define GPE0_DW1_28 60
+#define GPE0_DW1_29 61
+#define GPE0_DW1_30 62
+#define GPE0_DW1_31 63
+/* GPE_95_64 */
+#define GPE0_DW2_00 64
+#define GPE0_DW2_01 65
+#define GPE0_DW2_02 66
+#define GPE0_DW2_03 67
+#define GPE0_DW2_04 68
+#define GPE0_DW2_05 69
+#define GPE0_DW2_06 70
+#define GPE0_DW2_07 71
+#define GPE0_DW2_08 72
+#define GPE0_DW2_09 73
+#define GPE0_DW2_10 74
+#define GPE0_DW2_11 75
+#define GPE0_DW2_12 76
+#define GPE0_DW2_13 77
+#define GPE0_DW2_14 78
+#define GPE0_DW2_15 79
+#define GPE0_DW2_16 80
+#define GPE0_DW2_17 81
+#define GPE0_DW2_18 82
+#define GPE0_DW2_19 83
+#define GPE0_DW2_20 84
+#define GPE0_DW2_21 85
+#define GPE0_DW2_22 86
+#define GPE0_DW2_23 87
+#define GPE0_DW2_24 88
+#define GPE0_DW2_25 89
+#define GPE0_DW2_26 90
+#define GPE0_DW2_27 91
+#define GPE0_DW2_28 92
+#define GPE0_DW2_29 93
+#define GPE0_DW2_30 94
+#define GPE0_DW2_31 95
+/* GPE_STD */
+#define GPE0_HOT_PLUG 97
+#define GPE0_SWGPE 98
+#define GPE0_TCOSCI 102
+#define GPE0_SMB_WAK 103
+#define GPE0_PCI_EXP 105
+#define GPE0_BATLOW 106
+#define GPE0_PME 107
+#define GPE0_ME_SCI 108
+#define GPE0_PME_B0 109
+#define GPE0_ESPI 110
+#define GPE0_GPIO_T2 111
+#define GPE0_LAN_WAK 112
+#define GPE0_WADT 114
+
+#define GPE_MAX GPE0_WADT
+#endif /* _SOC_GPE_H_ */
diff --git a/src/soc/intel/cannonlake/include/soc/pm.h b/src/soc/intel/cannonlake/include/soc/pm.h
index 66541228fe..abf7db9b32 100644
--- a/src/soc/intel/cannonlake/include/soc/pm.h
+++ b/src/soc/intel/cannonlake/include/soc/pm.h
@@ -18,22 +18,124 @@
#define _SOC_PM_H_
#include <arch/acpi.h>
+#include <arch/io.h>
+#include <soc/gpe.h>
+#include <soc/iomap.h>
+#include <soc/smbus.h>
#include <soc/pmc.h>
+#define PM1_STS 0x00
+#define WAK_STS (1 << 15)
+#define PCIEXPWAK_STS (1 << 14)
+#define PRBTNOR_STS (1 << 11)
+#define RTC_STS (1 << 10)
+#define PWRBTN_STS (1 << 8)
+#define GBL_STS (1 << 5)
+#define BM_STS (1 << 4)
+#define TMROF_STS (1 << 0)
#define PM1_EN 0x02
+#define PCIEXPWAK_DIS (1 << 14)
+#define RTC_EN (1 << 10)
#define PWRBTN_EN (1 << 8)
#define GBL_EN (1 << 5)
+#define TMROF_EN (1 << 0)
+#define PM1_CNT 0x04
+#define GBL_RLS (1 << 2)
+#define BM_RLD (1 << 1)
+#define SCI_EN (1 << 0)
+#define PM1_TMR 0x08
#define SMI_EN 0x30
+#define XHCI_SMI_EN (1 << 31)
+#define ME_SMI_EN (1 << 30)
#define ESPI_SMI_EN (1 << 28)
+#define GPIO_UNLOCK_SMI_EN (1 << 27)
+#define INTEL_USB2_EN (1 << 18)
+#define LEGACY_USB2_EN (1 << 17)
+#define PERIODIC_EN (1 << 14)
+#define TCO_SMI_EN (1 << 13)
+#define MCSMI_EN (1 << 11)
+#define BIOS_RLS (1 << 7)
+#define SWSMI_TMR_EN (1 << 6)
#define APMC_EN (1 << 5)
#define SLP_SMI_EN (1 << 4)
+#define LEGACY_USB_EN (1 << 3)
+#define BIOS_EN (1 << 2)
#define EOS (1 << 1)
#define GBL_SMI_EN (1 << 0)
+#define SMI_STS 0x34
+#define SMI_STS_BITS 32
+#define XHCI_SMI_STS_BIT 31
+#define ME_SMI_STS_BIT 30
+#define ESPI_SMI_STS_BIT 28
+#define GPIO_UNLOCK_SMI_STS_BIT 27
+#define SPI_SMI_STS_BIT 26
+#define SCC_SMI_STS_BIT 25
+#define MONITOR_STS_BIT 21
+#define PCI_EXP_SMI_STS_BIT 20
+#define SMBUS_SMI_STS_BIT 16
+#define SERIRQ_SMI_STS_BIT 15
+#define PERIODIC_STS_BIT 14
+#define TCO_STS_BIT 13
+#define DEVMON_STS_BIT 12
+#define MCSMI_STS_BIT 11
+#define GPIO_STS_BIT 10
+#define GPE0_STS_BIT 9
+#define PM1_STS_BIT 8
+#define SWSMI_TMR_STS_BIT 6
+#define APM_STS_BIT 5
+#define SMI_ON_SLP_EN_STS_BIT 4
+#define LEGACY_USB_STS_BIT 3
+#define BIOS_STS_BIT 2
+#define GPE_CNTL 0x42
+#define SWGPE_CTRL (1 << 1)
+#define DEVACT_STS 0x44
+#define PM2_CNT 0x50
-
+#define GPE0_REG_MAX 4
+#define GPE0_REG_SIZE 32
+#define GPE0_STS(x) (0x60 + ((x) * 4))
+#define GPE_31_0 0 /* 0x60/0x70 = GPE[31:0] */
+#define GPE_63_32 1 /* 0x64/0x74 = GPE[63:32] */
+#define GPE_95_64 2 /* 0x68/0x78 = GPE[95:64] */
+#define GPE_STD 3 /* 0x6c/0x7c = Standard GPE */
+#define GPE_STS_RSVD GPE_STD
+#define WADT_STS (1 << 18)
+#define GPIO_T2_STS (1 << 15)
+#define ESPI_STS (1 << 14)
+#define PME_B0_STS (1 << 13)
+#define ME_SCI_STS (1 << 12)
+#define PME_STS (1 << 11)
+#define BATLOW_STS (1 << 10)
+#define PCI_EXP_STS (1 << 9)
+#define SMB_WAK_STS (1 << 7)
+#define TCOSCI_STS (1 << 6)
+#define SWGPE_STS (1 << 2)
+#define HOT_PLUG_STS (1 << 1)
#define GPE0_EN(x) (0x70 + ((x) * 4))
-#define PME_B0_EN (1 << 13)
+#define WADT_EN (1 << 18)
+#define GPIO_T2_EN (1 << 15)
+#define ESPI_EN (1 << 14)
+#define PME_B0_EN (1 << 13)
+#define ME_SCI_EN (1 << 12)
+#define PME_EN (1 << 11)
+#define BATLOW_EN (1 << 10)
+#define PCI_EXP_EN (1 << 9)
+#define TCOSCI_EN (1 << 6)
+#define SWGPE_EN (1 << 2)
+#define HOT_PLUG_EN (1 << 1)
+
+#define EN_BLOCK 3
+/*
+ * Enable SMI generation:
+ * - on APMC writes (io 0xb2)
+ * - on writes to SLP_EN (sleep states)
+ * - on writes to GBL_RLS (bios commands)
+ * - on eSPI events (does nothing on LPC systems)
+ * No SMIs:
+ * - on microcontroller writes (io 0x62/0x66)
+ * - on TCO events
+ */
#define ENABLE_SMI_PARAMS \
(APMC_EN | SLP_SMI_EN | GBL_SMI_EN | ESPI_SMI_EN | EOS)
@@ -51,6 +153,16 @@ struct chipset_power_state {
uint32_t prev_sleep_state;
} __attribute__ ((packed));
-struct chipset_power_state *fill_power_state(void);
+/* Return the selected ACPI SCI IRQ */
+int acpi_sci_irq(void);
+
+/* Get base address PMC memory mapped registers. */
+uint8_t *pmc_mmio_regs(void);
+
+/* Get base address of TCO I/O registers. */
+uint16_t smbus_tco_regs(void);
+
+/* Set the DISB after DRAM init */
+void pmc_set_disb(void);
#endif
diff --git a/src/soc/intel/cannonlake/include/soc/pmc.h b/src/soc/intel/cannonlake/include/soc/pmc.h
index 0bca332ac5..b8e49c2286 100644
--- a/src/soc/intel/cannonlake/include/soc/pmc.h
+++ b/src/soc/intel/cannonlake/include/soc/pmc.h
@@ -71,9 +71,9 @@
#define SMI_LOCK (1 << 4)
#define RTC_BATTERY_DEAD (1 << 2)
-#define ETR3 0x1048
-#define ETR3_CF9LOCK (1 << 31)
-#define ETR3_CF9GR (1 << 20)
+#define ETR 0x1048
+#define CF9_LOCK (1 << 31)
+#define CF9_GLB_RST (1 << 20)
#define SSML 0x104C
#define SSML_SSL_DS (0 << 0)
@@ -85,6 +85,8 @@
#define SSMD 0x1054
#define SSMD_SSD_MASK (0xffff << 0)
+#define PRSTS 0x1810
+
#define S3_PWRGATE_POL 0x1828
#define S3DC_GATE_SUS (1 << 1)
#define S3AC_GATE_SUS (1 << 0)
@@ -109,11 +111,9 @@
#define PCH2CPU_TT_EN (1 << 26)
#define PCH_PWRM_ACPI_TMR_CTL 0x18FC
-#define GPIO_CFG 0x1920
-#define GPE0_DWX_MASK 0xf
-#define GPE0_DW0_SHIFT 0
-#define GPE0_DW1_SHIFT 4
-#define GPE0_DW2_SHIFT 8
+#define GPIO_GPE_CFG 0x1920
+#define GPE0_DWX_MASK 0xf
+#define GPE0_DW_SHIFT(x) (4*(x))
#define GBLRST_CAUSE0 0x1924
#define GBLRST_CAUSE0_THERMTRIP (1 << 5)
diff --git a/src/soc/intel/cannonlake/include/soc/smbus.h b/src/soc/intel/cannonlake/include/soc/smbus.h
index 9de6981d5a..9f1cf34862 100644
--- a/src/soc/intel/cannonlake/include/soc/smbus.h
+++ b/src/soc/intel/cannonlake/include/soc/smbus.h
@@ -30,9 +30,9 @@
/* TCO registers and fields live behind TCOBASE I/O bar in SMBus device. */
#define TCO1_STS 0x04
+#define TCO_TIMEOUT (1 << 3)
#define TCO2_STS 0x06
-#define TCO2_STS_SECOND_TO 0x02
-#define TCO2_STS_BOOT 0x04
+#define TCO2_STS_SECOND_TO (1 << 1)
#define TCO1_CNT 0x08
#define TCO_LOCK (1 << 12)
#define TCO_TMR_HLT (1 << 11)
diff --git a/src/soc/intel/cannonlake/pmutil.c b/src/soc/intel/cannonlake/pmutil.c
new file mode 100644
index 0000000000..455c9692ed
--- /dev/null
+++ b/src/soc/intel/cannonlake/pmutil.c
@@ -0,0 +1,217 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2015 Intel Corporation.
+ *
+ * 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.
+ */
+
+/*
+ * Helper functions for dealing with power management registers
+ * and the differences between PCH variants.
+ */
+
+#define __SIMPLE_DEVICE__
+
+#include <arch/io.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_def.h>
+#include <console/console.h>
+#include <intelblocks/pmclib.h>
+#include <halt.h>
+#include <rules.h>
+#include <stdlib.h>
+#include <soc/gpe.h>
+#include <soc/gpio.h>
+#include <soc/iomap.h>
+#include <soc/lpc.h>
+#include <soc/pci_devs.h>
+#include <soc/pm.h>
+#include <soc/smbus.h>
+#include <timer.h>
+#include "chip.h"
+
+/*
+ * SMI
+ */
+
+const char *const *soc_smi_sts_array(size_t *a)
+{
+ static const char *const smi_sts_bits[] = {
+ [BIOS_STS_BIT] = "BIOS",
+ [LEGACY_USB_STS_BIT] = "LEGACY_USB",
+ [SMI_ON_SLP_EN_STS_BIT] = "SLP_SMI",
+ [APM_STS_BIT] = "APM",
+ [SWSMI_TMR_STS_BIT] = "SWSMI_TMR",
+ [PM1_STS_BIT] = "PM1",
+ [GPE0_STS_BIT] = "GPE0",
+ [GPIO_STS_BIT] = "GPI",
+ [MCSMI_STS_BIT] = "MCSMI",
+ [DEVMON_STS_BIT] = "DEVMON",
+ [TCO_STS_BIT] = "TCO",
+ [PERIODIC_STS_BIT] = "PERIODIC",
+ [SERIRQ_SMI_STS_BIT] = "SERIRQ_SMI",
+ [SMBUS_SMI_STS_BIT] = "SMBUS_SMI",
+ [PCI_EXP_SMI_STS_BIT] = "PCI_EXP_SMI",
+ [MONITOR_STS_BIT] = "MONITOR",
+ [SPI_SMI_STS_BIT] = "SPI",
+ [GPIO_UNLOCK_SMI_STS_BIT] = "GPIO_UNLOCK",
+ [ESPI_SMI_STS_BIT] = "ESPI_SMI",
+ };
+
+ *a = ARRAY_SIZE(smi_sts_bits);
+ return smi_sts_bits;
+}
+
+/*
+ * TCO
+ */
+
+const char *const *soc_tco_sts_array(size_t *a)
+{
+ static const char *const tco_sts_bits[] = {
+ [0] = "NMI2SMI",
+ [1] = "SW_TCO",
+ [2] = "TCO_INT",
+ [3] = "TIMEOUT",
+ [7] = "NEWCENTURY",
+ [8] = "BIOSWR",
+ [9] = "DMISCI",
+ [10] = "DMISMI",
+ [12] = "DMISERR",
+ [13] = "SLVSEL",
+ [16] = "INTRD_DET",
+ [17] = "SECOND_TO",
+ [18] = "BOOT",
+ [20] = "SMLINK_SLV"
+ };
+
+ *a = ARRAY_SIZE(tco_sts_bits);
+ return tco_sts_bits;
+}
+
+/*
+ * GPE0
+ */
+
+const char *const *soc_gpe_sts_array(size_t *a)
+{
+ static const char *const gpe_sts_bits[] = {
+ [1] = "HOTPLUG",
+ [2] = "SWGPE",
+ [6] = "TCO_SCI",
+ [7] = "SMB_WAK",
+ [9] = "PCI_EXP",
+ [10] = "BATLOW",
+ [11] = "PME",
+ [12] = "ME",
+ [13] = "PME_B0",
+ [14] = "eSPI",
+ [15] = "GPIO Tier-2",
+ [16] = "LAN_WAKE",
+ [18] = "WADT"
+ };
+
+ *a = ARRAY_SIZE(gpe_sts_bits);
+ return gpe_sts_bits;
+}
+
+int acpi_sci_irq(void)
+{
+ int scis = pci_read_config32(PCH_DEV_PMC, ACTL) & SCI_IRQ_SEL;
+ int sci_irq = 9;
+
+ /* Determine how SCI is routed. */
+ switch (scis) {
+ case SCIS_IRQ9:
+ case SCIS_IRQ10:
+ case SCIS_IRQ11:
+ sci_irq = scis - SCIS_IRQ9 + 9;
+ break;
+ case SCIS_IRQ20:
+ case SCIS_IRQ21:
+ case SCIS_IRQ22:
+ case SCIS_IRQ23:
+ sci_irq = scis - SCIS_IRQ20 + 20;
+ break;
+ default:
+ printk(BIOS_DEBUG, "Invalid SCI route! Defaulting to IRQ9.\n");
+ sci_irq = 9;
+ break;
+ }
+
+ printk(BIOS_DEBUG, "SCI is IRQ%d\n", sci_irq);
+ return sci_irq;
+}
+
+uint8_t *pmc_mmio_regs(void)
+{
+ uint32_t reg32;
+
+ reg32 = pci_read_config32(PCH_DEV_PMC, PWRMBASE);
+
+ return (void *)(uintptr_t)ALIGN_DOWN(reg32, 4 * KiB);
+}
+
+uint16_t smbus_tco_regs(void)
+{
+ uint16_t reg16;
+
+ reg16 = pci_read_config16(PCH_DEV_SMBUS, TCOBASE);
+
+ return ALIGN_DOWN(reg16, 0x20);
+}
+
+uint32_t soc_reset_tco_status(void)
+{
+ u16 tco1_sts;
+ u16 tco2_sts;
+ u16 tcobase;
+
+ tcobase = smbus_tco_regs();
+
+ /* TCO Status 2 register */
+ tco2_sts = inw(tcobase + TCO2_STS);
+ tco2_sts |= TCO2_STS_SECOND_TO;
+ outw(tco2_sts, tcobase + TCO2_STS);
+
+ /* TCO Status 1 register */
+ tco1_sts = inw(tcobase + TCO1_STS);
+
+ /* Clear SECOND_TO_STS bit */
+ if (tco2_sts & TCO2_STS_SECOND_TO)
+ outw(tco2_sts & ~TCO2_STS_SECOND_TO, tcobase + TCO2_STS);
+
+ return (tco2_sts << 16) | tco1_sts;
+}
+
+uintptr_t soc_read_pmc_base(void)
+{
+ return (uintptr_t)pmc_mmio_regs();
+}
+
+void soc_get_gpe_configs(uint8_t *dw0, uint8_t *dw1, uint8_t *dw2)
+{
+ DEVTREE_CONST struct soc_intel_cannonlake_config *config;
+
+ /* Look up the device in devicetree */
+ DEVTREE_CONST struct device *dev = dev_find_slot(0, PCH_DEVFN_PMC);
+ if (!dev || !dev->chip_info) {
+ printk(BIOS_ERR, "BUG! Could not find SOC devicetree config\n");
+ }
+ config = dev->chip_info;
+
+ /* Assign to out variable */
+ *dw0 = config->gpe0_dw0;
+ *dw1 = config->gpe0_dw1;
+ *dw2 = config->gpe0_dw2;
+}
diff --git a/src/soc/intel/cannonlake/romstage/power_state.c b/src/soc/intel/cannonlake/romstage/power_state.c
index 2c45ad9354..46048db75b 100644
--- a/src/soc/intel/cannonlake/romstage/power_state.c
+++ b/src/soc/intel/cannonlake/romstage/power_state.c
@@ -18,14 +18,94 @@
#include <arch/io.h>
#include <cbmem.h>
#include <console/console.h>
+#include <device/device.h>
+#include <intelblocks/pmclib.h>
+#include <string.h>
+#include <soc/pci_devs.h>
#include <soc/pm.h>
static struct chipset_power_state power_state CAR_GLOBAL;
-/* Fill power state structure from ACPI PM registers */
-struct chipset_power_state *fill_power_state(void)
+static void migrate_power_state(int is_recovery)
{
- struct chipset_power_state *ps = car_get_var_ptr(&power_state);
+ struct chipset_power_state *ps_cbmem;
+ struct chipset_power_state *ps_car;
- return ps;
+ ps_car = car_get_var_ptr(&power_state);
+ ps_cbmem = cbmem_add(CBMEM_ID_POWER_STATE, sizeof(*ps_cbmem));
+
+ if (ps_cbmem == NULL) {
+ printk(BIOS_DEBUG, "Not adding power state to cbmem!\n");
+ return;
+ }
+ memcpy(ps_cbmem, ps_car, sizeof(*ps_cbmem));
+}
+
+ROMSTAGE_CBMEM_INIT_HOOK(migrate_power_state)
+
+static inline int deep_s3_enabled(void)
+{
+ uint32_t deep_s3_pol;
+
+ deep_s3_pol = read32(pmc_mmio_regs() + S3_PWRGATE_POL);
+ return !!(deep_s3_pol & (S3DC_GATE_SUS | S3AC_GATE_SUS));
+}
+
+/* Return 0, 3, or 5 to indicate the previous sleep state. */
+int soc_prev_sleep_state(const struct chipset_power_state *ps,
+ int prev_sleep_state)
+{
+
+ /*
+ * Check for any power failure to determine if this a wake from
+ * S5 because the PCH does not set the WAK_STS bit when waking
+ * from a true G3 state.
+ */
+ if (ps->gen_pmcon_b & (PWR_FLR | SUS_PWR_FLR))
+ prev_sleep_state = ACPI_S5;
+
+ /*
+ * If waking from S3 determine if deep S3 is enabled. If not,
+ * need to check both deep sleep well and normal suspend well.
+ * Otherwise just check deep sleep well.
+ */
+ if (prev_sleep_state == ACPI_S3) {
+ /* PWR_FLR represents deep sleep power well loss. */
+ uint32_t mask = PWR_FLR;
+
+ /* If deep s3 isn't enabled check the suspend well too. */
+ if (!deep_s3_enabled())
+ mask |= SUS_PWR_FLR;
+
+ if (ps->gen_pmcon_b & mask)
+ prev_sleep_state = ACPI_S5;
+ }
+
+ return prev_sleep_state;
+}
+
+void soc_fill_power_state(struct chipset_power_state *ps)
+{
+ uint16_t tcobase;
+ uint8_t *pmc;
+
+ tcobase = smbus_tco_regs();
+
+ ps->tco1_sts = inw(tcobase + TCO1_STS);
+ ps->tco2_sts = inw(tcobase + TCO2_STS);
+
+ printk(BIOS_DEBUG, "TCO_STS: %04x %04x\n",
+ ps->tco1_sts, ps->tco2_sts);
+
+ pmc = pmc_mmio_regs();
+ ps->gen_pmcon_a = read32(pmc + GEN_PMCON_A);
+ ps->gen_pmcon_b = read32(pmc + GEN_PMCON_B);
+ ps->gblrst_cause[0] = read32(pmc + GBLRST_CAUSE0);
+ ps->gblrst_cause[1] = read32(pmc + GBLRST_CAUSE1);
+
+ printk(BIOS_DEBUG, "GEN_PMCON: %08x %08x\n",
+ ps->gen_pmcon_a, ps->gen_pmcon_b);
+
+ printk(BIOS_DEBUG, "GBLRST_CAUSE: %08x %08x\n",
+ ps->gblrst_cause[0], ps->gblrst_cause[1]);
}
diff --git a/src/soc/intel/cannonlake/romstage/romstage.c b/src/soc/intel/cannonlake/romstage/romstage.c
index 2f8617e4cf..ab0e19bdc6 100644
--- a/src/soc/intel/cannonlake/romstage/romstage.c
+++ b/src/soc/intel/cannonlake/romstage/romstage.c
@@ -14,30 +14,33 @@
*/
#include <arch/io.h>
+#include <arch/early_variables.h>
#include <cpu/x86/mtrr.h>
#include <cbmem.h>
#include <console/console.h>
#include <fsp/util.h>
+#include <intelblocks/pmclib.h>
#include <memory_info.h>
#include <soc/pm.h>
#include <soc/romstage.h>
#include <timestamp.h>
+static struct chipset_power_state power_state CAR_GLOBAL;
+
asmlinkage void car_stage_entry(void)
{
bool s3wake;
struct postcar_frame pcf;
uintptr_t top_of_ram;
- struct chipset_power_state *ps;
+ struct chipset_power_state *ps = car_get_var_ptr(&power_state);
console_init();
/* Program MCHBAR, DMIBAR, GDXBAR and EDRAMBAR */
systemagent_early_init();
- ps = fill_power_state();
timestamp_add_now(TS_START_ROMSTAGE);
- s3wake = ps->prev_sleep_state == ACPI_S3;
+ s3wake = pmc_fill_power_state(ps) == ACPI_S3;
fsp_memory_init(s3wake);
if (postcar_frame_init(&pcf, 1 * KiB))
die("Unable to initialize postcar frame.\n");
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-03 21:35:17 +0000