1 /* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
3 * Redistribution and use in source and binary forms, with or without
4 * modification, are permitted provided that the following conditions are
6 * * Redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer.
8 * * Redistributions in binary form must reproduce the above
9 * copyright notice, this list of conditions and the following
10 * disclaimer in the documentation and/or other materials provided
11 * with the distribution.
12 * * Neither the name of The Linux Foundation nor the names of its
13 * contributors may be used to endorse or promote products derived
14 * from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
23 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
25 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
26 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 #ifndef __DEVICE_TREE__
32 #define __DEVICE_TREE__
34 #define DEV_TREE_SUCCESS 0
35 //#define DEV_TREE_MAGIC 0x54444351 /* "QCDT" */
36 #define DEV_TREE_MAGIC 0x44525053 /* "SPRD" */
37 #define DEV_TREE_MAGIC_LEN 4
38 #define DEV_TREE_VERSION 1
39 #define DEV_TREE_HEADER_SIZE 12
41 #define DTB_MAGIC 0xedfe0dd0
42 #define DTB_OFFSET 0x2C
44 #define DTB_PAD_SIZE 1024
68 struct dt_entry * dev_tree_get_entry_ptr(struct dt_table *);
69 int update_device_tree(void *, const char *, void *, unsigned);
70 int dev_tree_add_mem_info(void *fdt, uint32_t offset, uint32_t size, uint32_t addr);
71 void *dev_tree_appended(void *kernel, void *tags, uint32_t kernel_size);
72 int load_dtb(int addr,void* dt_img_adr);