1201b66b7SHaojian Zhuang /* 2*ce574314Slaurenw-arm * Copyright (c) 2016-2024, Arm Limited and Contributors. All rights reserved. 3201b66b7SHaojian Zhuang * 482cb2c1aSdp-arm * SPDX-License-Identifier: BSD-3-Clause 5201b66b7SHaojian Zhuang */ 6201b66b7SHaojian Zhuang 7c3cf06f1SAntonio Nino Diaz #ifndef PARTITION_H 8c3cf06f1SAntonio Nino Diaz #define PARTITION_H 9201b66b7SHaojian Zhuang 1093c78ed2SAntonio Nino Diaz #include <stdint.h> 11201b66b7SHaojian Zhuang 1209d40e0eSAntonio Nino Diaz #include <lib/cassert.h> 132029f930SSughosh Ganu #include <drivers/partition/efi.h> 14938e8a50SSughosh Ganu #include <tools_share/uuid.h> 1509d40e0eSAntonio Nino Diaz 16201b66b7SHaojian Zhuang #if !PLAT_PARTITION_MAX_ENTRIES 17201b66b7SHaojian Zhuang # define PLAT_PARTITION_MAX_ENTRIES 128 18201b66b7SHaojian Zhuang #endif /* PLAT_PARTITION_MAX_ENTRIES */ 19201b66b7SHaojian Zhuang 20201b66b7SHaojian Zhuang CASSERT(PLAT_PARTITION_MAX_ENTRIES <= 128, assert_plat_partition_max_entries); 21201b66b7SHaojian Zhuang 22f8631f51SHaojian Zhuang #if !PLAT_PARTITION_BLOCK_SIZE 23f8631f51SHaojian Zhuang # define PLAT_PARTITION_BLOCK_SIZE 512 24f8631f51SHaojian Zhuang #endif /* PLAT_PARTITION_BLOCK_SIZE */ 25f8631f51SHaojian Zhuang 26f8631f51SHaojian Zhuang CASSERT((PLAT_PARTITION_BLOCK_SIZE == 512) || 27f8631f51SHaojian Zhuang (PLAT_PARTITION_BLOCK_SIZE == 4096), 28f8631f51SHaojian Zhuang assert_plat_partition_block_size); 29f8631f51SHaojian Zhuang 30f8631f51SHaojian Zhuang #define LEGACY_PARTITION_BLOCK_SIZE 512 31201b66b7SHaojian Zhuang 32ad2dd658SGovindraj Raja #define LBA(n) ((unsigned long long)(n) * PLAT_PARTITION_BLOCK_SIZE) 33ad2dd658SGovindraj Raja 34201b66b7SHaojian Zhuang typedef struct partition_entry { 35201b66b7SHaojian Zhuang uint64_t start; 36201b66b7SHaojian Zhuang uint64_t length; 37201b66b7SHaojian Zhuang char name[EFI_NAMELEN]; 38938e8a50SSughosh Ganu struct efi_guid part_guid; 39564f5d47SLionel Debieve struct efi_guid type_guid; 40201b66b7SHaojian Zhuang } partition_entry_t; 41201b66b7SHaojian Zhuang 42201b66b7SHaojian Zhuang typedef struct partition_entry_list { 43201b66b7SHaojian Zhuang partition_entry_t list[PLAT_PARTITION_MAX_ENTRIES]; 44*ce574314Slaurenw-arm unsigned int entry_count; 45201b66b7SHaojian Zhuang } partition_entry_list_t; 46201b66b7SHaojian Zhuang 47201b66b7SHaojian Zhuang int load_partition_table(unsigned int image_id); 48201b66b7SHaojian Zhuang const partition_entry_t *get_partition_entry(const char *name); 4937e81a60SSughosh Ganu const partition_entry_t *get_partition_entry_by_type( 5037e81a60SSughosh Ganu const struct efi_guid *type_guid); 5137e81a60SSughosh Ganu const partition_entry_t *get_partition_entry_by_guid( 5237e81a60SSughosh Ganu const struct efi_guid *part_guid); 53201b66b7SHaojian Zhuang const partition_entry_list_t *get_partition_entry_list(void); 54201b66b7SHaojian Zhuang void partition_init(unsigned int image_id); 55f08460dcSGovindraj Raja int gpt_partition_init(void); 56201b66b7SHaojian Zhuang 57c3cf06f1SAntonio Nino Diaz #endif /* PARTITION_H */ 58