1 /*
2 * Copyright (c) 2023-2026, Advanced Micro Devices, Inc. All rights reserved.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 *
6 */
7 #ifndef PLAT_FDT_H
8 #define PLAT_FDT_H
9
10 void prepare_dtb(void);
11 uintptr_t plat_retrieve_dt_addr(void);
12 int32_t is_valid_dtb(void *fdt);
13
14 #if defined(XILINX_OF_BOARD_DTB_ADDR)
15 int32_t add_mmap_dynamic_region(unsigned long long base_pa, uintptr_t base_va,
16 size_t size, unsigned int attr);
17 int32_t remove_mmap_dynamic_region(uintptr_t base_va, size_t size);
18 #else
add_mmap_dynamic_region(unsigned long long base_pa,uintptr_t base_va,size_t size,unsigned int attr)19 static inline int32_t add_mmap_dynamic_region(unsigned long long base_pa,
20 uintptr_t base_va,
21 size_t size, unsigned int attr)
22 {
23 return 0;
24 }
25
remove_mmap_dynamic_region(uintptr_t base_va,size_t size)26 static inline int32_t remove_mmap_dynamic_region(uintptr_t base_va, size_t size)
27 {
28 return 0;
29 }
30 #endif
31
32 #define MAX_RESERVE_ADDR_INDICES 32
33 struct reserve_mem_range {
34 uintptr_t base;
35 size_t size;
36 };
37
38 #if (TRANSFER_LIST == 1)
39 uint32_t retrieve_reserved_entries(void);
40 struct reserve_mem_range *get_reserved_entries_fdt(uint32_t *reserve_nodes);
41 #else
retrieve_reserved_entries(void)42 static inline uint32_t retrieve_reserved_entries(void)
43 {
44 return 0;
45 }
46
get_reserved_entries_fdt(uint32_t * reserve_nodes)47 static inline struct reserve_mem_range *get_reserved_entries_fdt(uint32_t *reserve_nodes)
48 {
49 if (reserve_nodes) {
50 *reserve_nodes = 0;
51 }
52
53 return NULL;
54 }
55 #endif
56
57 #endif /* PLAT_FDT_H */
58