1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 3 #ifndef __VBOOT_VBNV_LAYOUT_H__ 4 #define __VBOOT_VBNV_LAYOUT_H__ 5 6 #define VBOOT_VBNV_BLOCK_SIZE 16 /* Size of NV storage block in bytes */ 7 8 /* Constants for NV storage. We use this rather than structs and 9 * bitfields so the data format is consistent across platforms and 10 * compilers. 11 */ 12 #define HEADER_OFFSET 0 13 #define HEADER_MASK 0xC0 14 #define HEADER_SIGNATURE 0x40 15 #define HEADER_FIRMWARE_SETTINGS_RESET 0x20 16 #define HEADER_KERNEL_SETTINGS_RESET 0x10 17 18 #define BOOT_OFFSET 1 19 #define BOOT_DEBUG_RESET_MODE 0x80 20 #define BOOT_DISABLE_DEV_REQUEST 0x40 21 #define BOOT_DISPLAY_REQUEST 0x20 22 #define BOOT_TRY_B_COUNT_MASK 0x0F 23 24 #define RECOVERY_OFFSET 2 25 #define LOCALIZATION_OFFSET 3 26 27 #define DEV_FLAGS_OFFSET 4 28 #define DEV_BOOT_USB_MASK 0x01 29 #define DEV_BOOT_SIGNED_ONLY_MASK 0x02 30 #define DEV_ENABLE_UDC 0x40 31 32 #define MISC_FLAGS_OFFSET 8 33 #define MISC_FLAGS_BATTERY_CUTOFF_MASK 0x08 34 35 #define KERNEL_FIELD_OFFSET 11 36 #define CRC_OFFSET 15 37 38 #endif /* __VBOOT_VBNV_LAYOUT_H__ */ 39