| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Copyright 2020 Google LLC |
| */ |
| |
| #ifndef __ASM_ACPI_VBNV_LAYOUT_H__ |
| #define __ASM_ACPI_VBNV_LAYOUT_H__ |
| |
| #define VBOOT_VBNV_BLOCK_SIZE 16 /* Size of NV storage block in bytes */ |
| |
| /* Constants for NV storage, for use with ACPI */ |
| #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_DISPLAY_REQUEST 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 /* __ASM_ACPI_VBNV_LAYOUT_H__ */ |