]>
Commit | Line | Data |
---|---|---|
1 | /* | |
2 | * Header with function prototypes to help device tree manipulation using | |
3 | * libfdt. It also provides functions to read entries from device tree proc | |
4 | * interface. | |
5 | * | |
6 | * Copyright 2008 IBM Corporation. | |
7 | * Authors: Jerone Young <jyoung5@us.ibm.com> | |
8 | * Hollis Blanchard <hollisb@us.ibm.com> | |
9 | * | |
10 | * This work is licensed under the GNU GPL license version 2 or later. | |
11 | * | |
12 | */ | |
13 | ||
14 | #ifndef __DEVICE_TREE_H__ | |
15 | #define __DEVICE_TREE_H__ | |
16 | ||
17 | void *create_device_tree(int *sizep); | |
18 | void *load_device_tree(const char *filename_path, int *sizep); | |
19 | ||
20 | int qemu_devtree_setprop(void *fdt, const char *node_path, | |
21 | const char *property, void *val_array, int size); | |
22 | int qemu_devtree_setprop_cell(void *fdt, const char *node_path, | |
23 | const char *property, uint32_t val); | |
24 | int qemu_devtree_setprop_u64(void *fdt, const char *node_path, | |
25 | const char *property, uint64_t val); | |
26 | int qemu_devtree_setprop_string(void *fdt, const char *node_path, | |
27 | const char *property, const char *string); | |
28 | int qemu_devtree_setprop_phandle(void *fdt, const char *node_path, | |
29 | const char *property, | |
30 | const char *target_node_path); | |
31 | uint32_t qemu_devtree_get_phandle(void *fdt, const char *path); | |
32 | uint32_t qemu_devtree_alloc_phandle(void *fdt); | |
33 | int qemu_devtree_nop_node(void *fdt, const char *node_path); | |
34 | int qemu_devtree_add_subnode(void *fdt, const char *name); | |
35 | ||
36 | #define qemu_devtree_setprop_cells(fdt, node_path, property, ...) \ | |
37 | do { \ | |
38 | uint32_t qdt_tmp[] = { __VA_ARGS__ }; \ | |
39 | int i; \ | |
40 | \ | |
41 | for (i = 0; i < ARRAY_SIZE(qdt_tmp); i++) { \ | |
42 | qdt_tmp[i] = cpu_to_be32(qdt_tmp[i]); \ | |
43 | } \ | |
44 | qemu_devtree_setprop(fdt, node_path, property, qdt_tmp, \ | |
45 | sizeof(qdt_tmp)); \ | |
46 | } while (0) | |
47 | ||
48 | #endif /* __DEVICE_TREE_H__ */ |