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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
*
* 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 __VENDORCODE_GOOGLE_CHROMEOS_GNVS_H
#define __VENDORCODE_GOOGLE_CHROMEOS_GNVS_H
#define BOOT_REASON_OTHER 0
#define BOOT_REASON_S3DIAG 9
#define CHSW_RECOVERY_X86 (1 << 1)
#define CHSW_RECOVERY_EC (1 << 2)
#define CHSW_DEVELOPER_SWITCH (1 << 5)
#define CHSW_FIRMWARE_WP_DIS (1 << 9)
#define ACTIVE_MAINFW_RECOVERY 0
#define ACTIVE_MAINFW_RW_A 1
#define ACTIVE_MAINFW_RW_B 2
#define ACTIVE_MAINFW_TYPE_RECOVERY 0
#define ACTIVE_MAINFW_TYPE_NORMAL 1
#define ACTIVE_MAINFW_TYPE_DEVELOPER 2
#define RECOVERY_REASON_NONE 0
#define RECOVERY_REASON_ME 1
// TODO(reinauer) other recovery reasons?
#define ACTIVE_ECFW_RO 0
#define ACTIVE_ECFW_RW 1
/*
* chromeos_acpi_t portion of ACPI GNVS is assumed to live at
* 0x100 - 0x1000. When defining global_nvs_t, use check_member
* to ensure that it is properly aligned:
*
* check_member(global_nvs_t, chromeos, GNVS_CHROMEOS_ACPI_OFFSET);
*/
#define GNVS_CHROMEOS_ACPI_OFFSET 0x100
/* device_nvs_t is assumed to live directly after chromeos_acpi_t. */
#define GNVS_DEVICE_NVS_OFFSET 0x1000
typedef struct {
/* ChromeOS specific */
u32 vbt0; // 00 boot reason
u32 vbt1; // 04 active main firmware
u32 vbt2; // 08 active ec firmware
u16 vbt3; // 0c CHSW
u8 vbt4[256]; // 0e HWID
u8 vbt5[64]; // 10e FWID
u8 vbt6[64]; // 14e FRID - 275
u32 vbt7; // 18e active main firmware type
u32 vbt8; // 192 recovery reason
u32 vbt9; // 196 fmap base address
u8 vdat[3072]; // 19a VDAT space filled by verified boot
u32 vbt10; // d9a smbios bios version
u32 mehh[8]; // d9e management engine hash
u32 ramoops_base; // dbe ramoops base address
u32 ramoops_len; // dc2 ramoops length
u8 pad[314]; // dc6-eff
} __packed chromeos_acpi_t;
void chromeos_init_chromeos_acpi(chromeos_acpi_t *init);
void chromeos_set_me_hash(u32*, int);
chromeos_acpi_t *chromeos_get_chromeos_acpi(void);
#endif
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