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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2015 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 __VBOOT_VBNV_LAYOUT_H__
#define __VBOOT_VBNV_LAYOUT_H__
#define VBOOT_VBNV_BLOCK_SIZE 16 /* Size of NV storage block in bytes */
/* Constants for NV storage. We use this rather than structs and
* bitfields so the data format is consistent across platforms and
* compilers.
*/
#define HEADER_OFFSET 0
#define HEADER_MASK 0xC0
#define HEADER_SIGNATURE 0x40
#define HEADER_FIRMWARE_SETTINGS_RESET 0x20
#define HEADER_KERNEL_SETTINGS_RESET 0x10
#define BOOT_OFFSET 1
#define BOOT_DEBUG_RESET_MODE 0x80
#define BOOT_DISABLE_DEV_REQUEST 0x40
#define BOOT_OPROM_NEEDED 0x20
#define BOOT_TRY_B_COUNT_MASK 0x0F
#define RECOVERY_OFFSET 2
#define LOCALIZATION_OFFSET 3
#define DEV_FLAGS_OFFSET 4
#define DEV_BOOT_USB_MASK 0x01
#define DEV_BOOT_SIGNED_ONLY_MASK 0x02
#define DEV_ENABLE_UDC 0x40
#define MISC_FLAGS_OFFSET 8
#define MISC_FLAGS_BATTERY_CUTOFF_MASK 0x08
#define KERNEL_FIELD_OFFSET 11
#define CRC_OFFSET 15
#endif /* __VBOOT_VBNV_LAYOUT_H__ */
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