123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112 |
- /* SPDX-License-Identifier: GPL-2.0 */
- /*
- * Copyright (C) 2019 Intel Corporation.
- *
- * Taken from coreboot intelblocks/nvs.h
- * Copyright 2019 Google LLC
- */
- #ifndef _INTEL_GNVS_H_
- #define _INTEL_GNVS_H_
- #include <linux/bitops.h>
- /*
- * The chromeos_acpi portion of ACPI GNVS is assumed to live from offset
- * 0x100 - 0x1000. When defining acpi_global_nvs, use check_member
- * to ensure that it is properly aligned:
- *
- * check_member(acpi_global_nvs, chromeos, GNVS_CHROMEOS_ACPI_OFFSET);
- */
- #define GNVS_CHROMEOS_ACPI_OFFSET 0x100
- enum {
- BOOT_REASON_OTHER = 0,
- BOOT_REASON_S3DIAG = 9
- };
- enum {
- CHSW_RECOVERY_X86 = BIT(1),
- CHSW_RECOVERY_EC = BIT(2),
- CHSW_DEVELOPER_SWITCH = BIT(5),
- CHSW_FIRMWARE_WP = BIT(9),
- };
- enum {
- RECOVERY_REASON_NONE = 0,
- RECOVERY_REASON_ME = 1
- };
- enum {
- ACTIVE_ECFW_RO = 0,
- ACTIVE_ECFW_RW = 1
- };
- enum {
- BINF_RECOVERY = 0,
- BINF_RW_A = 1,
- BINF_RW_B = 2
- };
- enum {
- FIRMWARE_TYPE_AUTO_DETECT = -1,
- FIRMWARE_TYPE_RECOVERY = 0,
- FIRMWARE_TYPE_NORMAL = 1,
- FIRMWARE_TYPE_DEVELOPER = 2,
- FIRMWARE_TYPE_NETBOOT = 3,
- FIRMWARE_TYPE_LEGACY = 4,
- };
- struct __packed chromeos_acpi_gnvs {
- /* ChromeOS-specific */
- u32 boot_reason; /* 00 boot reason */
- u32 active_main_fw; /* 04 (0=recovery, 1=A, 2=B) */
- u32 activeec_fw; /* 08 (0=RO, 1=RW) */
- u16 switches; /* 0c CHSW */
- u8 hwid[256]; /* 0e HWID */
- u8 fwid[64]; /* 10e FWID */
- u8 frid[64]; /* 14e FRID - 275 */
- u32 main_fw_type; /* 18e (2 = developer mode) */
- u32 recovery_reason; /* 192 recovery reason */
- u32 fmap_base; /* 196 fmap base address */
- u8 vdat[3072]; /* 19a VDAT space filled by verified boot */
- u32 fwid_ptr; /* d9a smbios bios version */
- u32 mehh[8]; /* d9e management engine hash */
- u32 ramoops_base; /* dbe ramoops base address */
- u32 ramoops_len; /* dc2 ramoops length */
- u32 vpd_ro_base; /* dc6 pointer to RO_VPD */
- u32 vpd_ro_size; /* dca size of RO_VPD */
- u32 vpd_rw_base; /* dce pointer to RW_VPD */
- u32 vpd_rw_size; /* dd2 size of RW_VPD */
- u8 pad[298]; /* dd6-eff */
- };
- struct __packed acpi_global_nvs {
- /* Miscellaneous */
- u8 pcnt; /* 0x00 - Processor Count */
- u8 ppcm; /* 0x01 - Max PPC State */
- u8 lids; /* 0x02 - LID State */
- u8 pwrs; /* 0x03 - AC Power State */
- u8 dpte; /* 0x04 - Enable DPTF */
- u32 cbmc; /* 0x05 - 0x08 - coreboot Memory Console */
- u64 pm1i; /* 0x09 - 0x10 - System Wake Source - PM1 Index */
- u64 gpei; /* 0x11 - 0x18 - GPE Wake Source */
- u64 nhla; /* 0x19 - 0x20 - NHLT Address */
- u32 nhll; /* 0x21 - 0x24 - NHLT Length */
- u32 prt0; /* 0x25 - 0x28 - PERST_0 Address */
- u8 scdp; /* 0x29 - SD_CD GPIO portid */
- u8 scdo; /* 0x2a - GPIO pad offset relative to the community */
- u8 uior; /* 0x2b - UART debug controller init on S3 resume */
- u8 ecps; /* 0x2c - SGX Enabled status */
- u64 emna; /* 0x2d - 0x34 EPC base address */
- u64 elng; /* 0x35 - 0x3C EPC Length */
- u8 unused1[0x100 - 0x3d]; /* Pad out to 256 bytes */
- #ifdef CONFIG_CHROMEOS
- /* ChromeOS-specific (0x100 - 0xfff) */
- struct chromeos_acpi_gnvs chromeos;
- #else
- u8 unused2[0x1000 - 0x100]; /* Pad out to 4096 bytes */
- #endif
- };
- check_member(acpi_global_nvs, chromeos, GNVS_CHROMEOS_ACPI_OFFSET);
- #endif /* _INTEL_GNVS_H_ */
|