[mirror_edk2.git] / EmbeddedPkg / Include / fdt.h

/** @file
*
*  Copyright (c) 2011-2012, ARM Limited. All rights reserved.
*  
*  This program and the accompanying materials                          
*  are licensed and made available under the terms and conditions of the BSD License         
*  which accompanies this distribution.  The full text of the license may be found at        
*  http://opensource.org/licenses/bsd-license.php                                            
*
*  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
*  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
*
**/

#ifndef _FDT_H
#define _FDT_H

#ifndef __ASSEMBLY__

struct fdt_header {
	uint32_t magic;			 /* magic word FDT_MAGIC */
	uint32_t totalsize;		 /* total size of DT block */
	uint32_t off_dt_struct;		 /* offset to structure */
	uint32_t off_dt_strings;	 /* offset to strings */
	uint32_t off_mem_rsvmap;	 /* offset to memory reserve map */
	uint32_t version;		 /* format version */
	uint32_t last_comp_version;	 /* last compatible version */

	/* version 2 fields below */
	uint32_t boot_cpuid_phys;	 /* Which physical CPU id we're
					    booting on */
	/* version 3 fields below */
	uint32_t size_dt_strings;	 /* size of the strings block */

	/* version 17 fields below */
	uint32_t size_dt_struct;	 /* size of the structure block */
};

struct fdt_reserve_entry {
	uint64_t address;
	uint64_t size;
};

struct fdt_node_header {
	uint32_t tag;
	char name[0];
};

struct fdt_property {
	uint32_t tag;
	uint32_t len;
	uint32_t nameoff;
	char data[0];
};

#endif /* !__ASSEMBLY */

#define FDT_MAGIC	0xd00dfeed	/* 4: version, 4: total size */
#define FDT_TAGSIZE	sizeof(uint32_t)

#define FDT_BEGIN_NODE	0x1		/* Start node: full name */
#define FDT_END_NODE	0x2		/* End node */
#define FDT_PROP	0x3		/* Property: name off,
					   size, content */
#define FDT_NOP		0x4		/* nop */
#define FDT_END		0x9

#define FDT_V1_SIZE	(7*sizeof(uint32_t))
#define FDT_V2_SIZE	(FDT_V1_SIZE + sizeof(uint32_t))
#define FDT_V3_SIZE	(FDT_V2_SIZE + sizeof(uint32_t))
#define FDT_V16_SIZE	FDT_V3_SIZE
#define FDT_V17_SIZE	(FDT_V16_SIZE + sizeof(uint32_t))

#endif /* _FDT_H */
Commit	Line	Data
fa4a7063	1	/** @file
	2	*
	3	* Copyright (c) 2011-2012, ARM Limited. All rights reserved.
	4	*
	5	* This program and the accompanying materials
	6	* are licensed and made available under the terms and conditions of the BSD License
	7	* which accompanies this distribution. The full text of the license may be found at
	8	* http://opensource.org/licenses/bsd-license.php
	9	*
	10	* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
	11	* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
	12	*
	13	**/
	14
	15	#ifndef _FDT_H
	16	#define _FDT_H
	17
	18	#ifndef __ASSEMBLY__
	19
	20	struct fdt_header {
	21	uint32_t magic; /* magic word FDT_MAGIC */
	22	uint32_t totalsize; /* total size of DT block */
	23	uint32_t off_dt_struct; /* offset to structure */
	24	uint32_t off_dt_strings; /* offset to strings */
	25	uint32_t off_mem_rsvmap; /* offset to memory reserve map */
	26	uint32_t version; /* format version */
	27	uint32_t last_comp_version; /* last compatible version */
	28
	29	/* version 2 fields below */
	30	uint32_t boot_cpuid_phys; /* Which physical CPU id we're
	31	booting on */
	32	/* version 3 fields below */
	33	uint32_t size_dt_strings; /* size of the strings block */
	34
	35	/* version 17 fields below */
	36	uint32_t size_dt_struct; /* size of the structure block */
	37	};
	38
	39	struct fdt_reserve_entry {
	40	uint64_t address;
	41	uint64_t size;
	42	};
	43
	44	struct fdt_node_header {
	45	uint32_t tag;
	46	char name[0];
	47	};
	48
	49	struct fdt_property {
	50	uint32_t tag;
	51	uint32_t len;
	52	uint32_t nameoff;
	53	char data[0];
	54	};
	55
	56	#endif /* !__ASSEMBLY */
	57
	58	#define FDT_MAGIC 0xd00dfeed /* 4: version, 4: total size */
	59	#define FDT_TAGSIZE sizeof(uint32_t)
	60
	61	#define FDT_BEGIN_NODE 0x1 /* Start node: full name */
	62	#define FDT_END_NODE 0x2 /* End node */
	63	#define FDT_PROP 0x3 /* Property: name off,
	64	size, content */
65	#define FDT_NOP 0x4 /* nop */
66	#define FDT_END 0x9
67
68	#define FDT_V1_SIZE (7*sizeof(uint32_t))
69	#define FDT_V2_SIZE (FDT_V1_SIZE + sizeof(uint32_t))
70	#define FDT_V3_SIZE (FDT_V2_SIZE + sizeof(uint32_t))
71	#define FDT_V16_SIZE FDT_V3_SIZE
72	#define FDT_V17_SIZE (FDT_V16_SIZE + sizeof(uint32_t))
73
74	#endif /* _FDT_H */