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/*
* (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005.
*
*
* 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, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
%{
#include "dtc.h"
int yylex (void);
void yyerror (char const *);
extern struct boot_info *the_boot_info;
%}
%union {
cell_t cval;
u8 byte;
char *str;
struct data data;
struct property *prop;
struct property *proplist;
struct node *node;
struct node *nodelist;
int datalen;
int hexlen;
u64 addr;
struct reserve_entry re;
}
%token DT_MEMRESERVE
%token <addr> DT_ADDR
%token <str> DT_PROPNAME
%token <str> DT_NODENAME
%token <cval> DT_CELL
%token <byte> DT_BYTE
%token <data> DT_STRING
%token <str> DT_UNIT
%token <str> DT_LABEL
%token <str> DT_REF
%type <data> propdata
%type <re> memreserve
%type <data> memreserves
%type <data> celllist
%type <data> bytestring
%type <prop> propdef
%type <proplist> proplist
%type <node> devicetree
%type <node> nodedef
%type <node> subnode
%type <nodelist> subnodes
%type <str> label
%type <str> nodename
%glr-parser
%%
sourcefile: memreserves devicetree {
the_boot_info = build_boot_info($1, $2);
}
;
memreserves: memreserves memreserve {
$$ = data_append_addr(data_append_addr($1, $2.address),
$2.size);
}
| /* empty */ {
$$ = empty_data;
}
;
memreserve: DT_MEMRESERVE DT_ADDR DT_ADDR ';' {
$$.address = $2;
$$.size = $3;
}
| DT_MEMRESERVE DT_ADDR '-' DT_ADDR ';' {
$$.address = $2;
$$.size = $4 - $2 + 1;
}
;
devicetree: '/' nodedef {
$$ = name_node($2, "", NULL);
}
;
nodedef: '{' proplist subnodes '}' ';' {
$$ = build_node($2, $3);
}
;
proplist: propdef proplist {
$$ = chain_property($1, $2);
}
| /* empty */ {
$$ = NULL;
}
;
propdef: label DT_PROPNAME '=' propdata ';' {
$$ = build_property($2, $4, $1);
}
| label DT_PROPNAME ';' {
$$ = build_property($2, empty_data, $1);
}
;
propdata: DT_STRING { $$ = $1; }
| '<' celllist '>' { $$ = $2; }
| '[' bytestring ']' { $$ = $2; }
;
celllist: celllist DT_CELL { $$ = data_append_cell($1, $2); }
| celllist DT_REF {
$$ = data_append_cell(data_add_fixup($1, $2), -1);
}
| /* empty */ { $$ = empty_data; }
;
bytestring: bytestring DT_BYTE { $$ = data_append_byte($1, $2); }
| /* empty */ { $$ = empty_data; }
;
subnodes: subnode subnodes {
$$ = chain_node($1, $2);
}
| /* empty */ { $$ = NULL; }
;
subnode: label nodename nodedef { $$ = name_node($3, $2, $1); }
;
nodename: DT_NODENAME { $$ = $1; }
| DT_PROPNAME { $$ = $1; }
;
label: DT_LABEL { $$ = $1; }
| /* empty */ { $$ = NULL; }
;
%%
void yyerror (char const *s)
{
fprintf (stderr, "%s\n", s);
}