1*91f16700Schasinglulu /* 2*91f16700Schasinglulu * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. 3*91f16700Schasinglulu * 4*91f16700Schasinglulu * SPDX-License-Identifier: BSD-3-Clause 5*91f16700Schasinglulu */ 6*91f16700Schasinglulu 7*91f16700Schasinglulu #ifndef MBR_H 8*91f16700Schasinglulu #define MBR_H 9*91f16700Schasinglulu 10*91f16700Schasinglulu #define MBR_OFFSET 0 11*91f16700Schasinglulu 12*91f16700Schasinglulu #define MBR_PRIMARY_ENTRY_OFFSET 0x1be 13*91f16700Schasinglulu #define MBR_PRIMARY_ENTRY_SIZE 0x10 14*91f16700Schasinglulu #define MBR_PRIMARY_ENTRY_NUMBER 4 15*91f16700Schasinglulu #define MBR_CHS_ADDRESS_LEN 3 16*91f16700Schasinglulu 17*91f16700Schasinglulu #define MBR_SIGNATURE_FIRST 0x55 18*91f16700Schasinglulu #define MBR_SIGNATURE_SECOND 0xAA 19*91f16700Schasinglulu 20*91f16700Schasinglulu typedef struct mbr_entry { 21*91f16700Schasinglulu unsigned char status; 22*91f16700Schasinglulu unsigned char first_sector[MBR_CHS_ADDRESS_LEN]; 23*91f16700Schasinglulu unsigned char type; 24*91f16700Schasinglulu unsigned char last_sector[MBR_CHS_ADDRESS_LEN]; 25*91f16700Schasinglulu unsigned int first_lba; 26*91f16700Schasinglulu unsigned int sector_nums; 27*91f16700Schasinglulu } mbr_entry_t; 28*91f16700Schasinglulu 29*91f16700Schasinglulu #endif /* MBR_H */ 30