1 /*
2  * Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved.
3  *
4  * SPDX-License-Identifier: BSD-3-Clause
5  */
6 
7 #ifndef PARTITION_H
8 #define PARTITION_H
9 
10 #include <stdint.h>
11 
12 #include <lib/cassert.h>
13 
14 #if !PLAT_PARTITION_MAX_ENTRIES
15 # define PLAT_PARTITION_MAX_ENTRIES	128
16 #endif	/* PLAT_PARTITION_MAX_ENTRIES */
17 
18 CASSERT(PLAT_PARTITION_MAX_ENTRIES <= 128, assert_plat_partition_max_entries);
19 
20 #if !PLAT_PARTITION_BLOCK_SIZE
21 # define PLAT_PARTITION_BLOCK_SIZE	512
22 #endif /* PLAT_PARTITION_BLOCK_SIZE */
23 
24 CASSERT((PLAT_PARTITION_BLOCK_SIZE == 512) ||
25 	(PLAT_PARTITION_BLOCK_SIZE == 4096),
26 	assert_plat_partition_block_size);
27 
28 #define LEGACY_PARTITION_BLOCK_SIZE	512
29 
30 #define EFI_NAMELEN			36
31 
32 typedef struct partition_entry {
33 	uint64_t		start;
34 	uint64_t		length;
35 	char			name[EFI_NAMELEN];
36 } partition_entry_t;
37 
38 typedef struct partition_entry_list {
39 	partition_entry_t	list[PLAT_PARTITION_MAX_ENTRIES];
40 	int			entry_count;
41 } partition_entry_list_t;
42 
43 int load_partition_table(unsigned int image_id);
44 const partition_entry_t *get_partition_entry(const char *name);
45 const partition_entry_list_t *get_partition_entry_list(void);
46 void partition_init(unsigned int image_id);
47 
48 #endif /* PARTITION_H */
49