21f3fe2f7a
This will be used by the PlanetCore firmware support to construct a linux,stdout-path from the serial node that it finds. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
114 lines
4.1 KiB
C
114 lines
4.1 KiB
C
/*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef FLATDEVTREE_H
|
|
#define FLATDEVTREE_H
|
|
|
|
#include "flatdevtree_env.h"
|
|
|
|
/* Definitions used by the flattened device tree */
|
|
#define OF_DT_HEADER 0xd00dfeed /* marker */
|
|
#define OF_DT_BEGIN_NODE 0x1 /* Start of node, full name */
|
|
#define OF_DT_END_NODE 0x2 /* End node */
|
|
#define OF_DT_PROP 0x3 /* Property: name off, size, content */
|
|
#define OF_DT_NOP 0x4 /* nop */
|
|
#define OF_DT_END 0x9
|
|
|
|
#define OF_DT_VERSION 0x10
|
|
|
|
struct boot_param_header {
|
|
u32 magic; /* magic word OF_DT_HEADER */
|
|
u32 totalsize; /* total size of DT block */
|
|
u32 off_dt_struct; /* offset to structure */
|
|
u32 off_dt_strings; /* offset to strings */
|
|
u32 off_mem_rsvmap; /* offset to memory reserve map */
|
|
u32 version; /* format version */
|
|
u32 last_comp_version; /* last compatible version */
|
|
/* version 2 fields below */
|
|
u32 boot_cpuid_phys; /* Physical CPU id we're booting on */
|
|
/* version 3 fields below */
|
|
u32 dt_strings_size; /* size of the DT strings block */
|
|
};
|
|
|
|
struct ft_reserve {
|
|
u64 start;
|
|
u64 len;
|
|
};
|
|
|
|
struct ft_region {
|
|
char *start;
|
|
unsigned long size;
|
|
};
|
|
|
|
enum ft_rgn_id {
|
|
FT_RSVMAP,
|
|
FT_STRUCT,
|
|
FT_STRINGS,
|
|
FT_N_REGION
|
|
};
|
|
|
|
#define FT_MAX_DEPTH 50
|
|
|
|
struct ft_cxt {
|
|
struct boot_param_header *bph;
|
|
int max_size; /* maximum size of tree */
|
|
int isordered; /* everything in standard order */
|
|
void *(*realloc)(void *, unsigned long);
|
|
char *str_anchor;
|
|
char *p; /* current insertion point in structs */
|
|
struct ft_region rgn[FT_N_REGION];
|
|
void *genealogy[FT_MAX_DEPTH+1];
|
|
char **node_tbl;
|
|
unsigned int node_max;
|
|
unsigned int nodes_used;
|
|
};
|
|
|
|
char *ft_begin_node(struct ft_cxt *cxt, const char *name);
|
|
void ft_end_node(struct ft_cxt *cxt);
|
|
|
|
void ft_begin_tree(struct ft_cxt *cxt);
|
|
void ft_end_tree(struct ft_cxt *cxt);
|
|
|
|
void ft_nop(struct ft_cxt *cxt);
|
|
int ft_prop(struct ft_cxt *cxt, const char *name,
|
|
const void *data, unsigned int sz);
|
|
int ft_prop_str(struct ft_cxt *cxt, const char *name, const char *str);
|
|
int ft_prop_int(struct ft_cxt *cxt, const char *name, unsigned int val);
|
|
void ft_begin(struct ft_cxt *cxt, void *blob, unsigned int max_size,
|
|
void *(*realloc_fn)(void *, unsigned long));
|
|
int ft_open(struct ft_cxt *cxt, void *blob, unsigned int max_size,
|
|
unsigned int max_find_device,
|
|
void *(*realloc_fn)(void *, unsigned long));
|
|
int ft_add_rsvmap(struct ft_cxt *cxt, u64 physaddr, u64 size);
|
|
|
|
void ft_dump_blob(const void *bphp);
|
|
void ft_merge_blob(struct ft_cxt *cxt, void *blob);
|
|
void *ft_find_device(struct ft_cxt *cxt, const void *top,
|
|
const char *srch_path);
|
|
void *ft_find_descendent(struct ft_cxt *cxt, void *top, const char *srch_path);
|
|
int ft_get_prop(struct ft_cxt *cxt, const void *phandle, const char *propname,
|
|
void *buf, const unsigned int buflen);
|
|
int ft_set_prop(struct ft_cxt *cxt, const void *phandle, const char *propname,
|
|
const void *buf, const unsigned int buflen);
|
|
void *ft_get_parent(struct ft_cxt *cxt, const void *phandle);
|
|
void *ft_find_node_by_prop_value(struct ft_cxt *cxt, const void *prev,
|
|
const char *propname, const char *propval,
|
|
int proplen);
|
|
void *ft_create_node(struct ft_cxt *cxt, const void *parent, const char *name);
|
|
char *ft_get_path(struct ft_cxt *cxt, const void *phandle, char *buf, int len);
|
|
|
|
#endif /* FLATDEVTREE_H */
|