[POWERPC] Merge dtc upstream source
This incorporates a copy of dtc into the kernel source, in arch/powerpc/boot/dtc-src. This commit only imports the upstream sources verbatim, a later commit will actually link it into the kernel Makefiles and use the embedded code during the kernel build. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
David Gibson
committed by
Paul Mackerras
Paul Mackerras
parent
70e47528aa
commit
a4da2e3ec8
336
arch/powerpc/boot/dtc-src/dtc-parser.y
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336
arch/powerpc/boot/dtc-src/dtc-parser.y
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/*
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* (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005.
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*
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*/
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%locations
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%{
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#include "dtc.h"
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#include "srcpos.h"
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int yylex(void);
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unsigned long long eval_literal(const char *s, int base, int bits);
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extern struct boot_info *the_boot_info;
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%}
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%union {
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char *propnodename;
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char *literal;
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char *labelref;
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unsigned int cbase;
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u8 byte;
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struct data data;
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u64 addr;
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cell_t cell;
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struct property *prop;
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struct property *proplist;
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struct node *node;
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struct node *nodelist;
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struct reserve_info *re;
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}
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%token DT_V1
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%token DT_MEMRESERVE
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%token <propnodename> DT_PROPNODENAME
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%token <literal> DT_LITERAL
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%token <literal> DT_LEGACYLITERAL
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%token <cbase> DT_BASE
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%token <byte> DT_BYTE
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%token <data> DT_STRING
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%token <labelref> DT_LABEL
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%token <labelref> DT_REF
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%type <data> propdata
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%type <data> propdataprefix
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%type <re> memreserve
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%type <re> memreserves
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%type <re> v0_memreserve
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%type <re> v0_memreserves
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%type <addr> addr
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%type <data> celllist
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%type <cbase> cellbase
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%type <cell> cellval
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%type <data> bytestring
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%type <prop> propdef
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%type <proplist> proplist
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%type <node> devicetree
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%type <node> nodedef
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%type <node> subnode
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%type <nodelist> subnodes
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%type <labelref> label
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%%
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sourcefile:
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DT_V1 ';' memreserves devicetree
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{
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the_boot_info = build_boot_info($3, $4);
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}
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| v0_memreserves devicetree
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{
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the_boot_info = build_boot_info($1, $2);
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}
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;
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memreserves:
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/* empty */
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{
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$$ = NULL;
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}
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| memreserve memreserves
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{
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$$ = chain_reserve_entry($1, $2);
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}
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;
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memreserve:
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label DT_MEMRESERVE addr addr ';'
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{
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$$ = build_reserve_entry($3, $4, $1);
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}
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;
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v0_memreserves:
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/* empty */
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{
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$$ = NULL;
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}
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| v0_memreserve v0_memreserves
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{
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$$ = chain_reserve_entry($1, $2);
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};
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;
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v0_memreserve:
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memreserve
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{
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$$ = $1;
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}
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| label DT_MEMRESERVE addr '-' addr ';'
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{
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$$ = build_reserve_entry($3, $5 - $3 + 1, $1);
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}
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;
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addr:
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DT_LITERAL
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{
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$$ = eval_literal($1, 0, 64);
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}
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| DT_LEGACYLITERAL
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{
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$$ = eval_literal($1, 16, 64);
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}
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;
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devicetree:
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'/' nodedef
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{
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$$ = name_node($2, "", NULL);
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}
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;
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nodedef:
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'{' proplist subnodes '}' ';'
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{
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$$ = build_node($2, $3);
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}
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;
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proplist:
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/* empty */
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{
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$$ = NULL;
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}
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| proplist propdef
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{
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$$ = chain_property($2, $1);
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}
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;
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propdef:
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label DT_PROPNODENAME '=' propdata ';'
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{
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$$ = build_property($2, $4, $1);
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}
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| label DT_PROPNODENAME ';'
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{
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$$ = build_property($2, empty_data, $1);
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}
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;
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propdata:
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propdataprefix DT_STRING
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{
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$$ = data_merge($1, $2);
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}
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| propdataprefix '<' celllist '>'
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{
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$$ = data_merge($1, $3);
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}
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| propdataprefix '[' bytestring ']'
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{
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$$ = data_merge($1, $3);
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}
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| propdataprefix DT_REF
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{
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$$ = data_add_marker($1, REF_PATH, $2);
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}
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| propdata DT_LABEL
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{
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$$ = data_add_marker($1, LABEL, $2);
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}
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;
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propdataprefix:
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/* empty */
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{
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$$ = empty_data;
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}
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| propdata ','
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{
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$$ = $1;
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}
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| propdataprefix DT_LABEL
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{
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$$ = data_add_marker($1, LABEL, $2);
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}
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;
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celllist:
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/* empty */
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{
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$$ = empty_data;
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}
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| celllist cellval
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{
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$$ = data_append_cell($1, $2);
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}
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| celllist DT_REF
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{
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$$ = data_append_cell(data_add_marker($1, REF_PHANDLE,
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$2), -1);
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}
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| celllist DT_LABEL
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{
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$$ = data_add_marker($1, LABEL, $2);
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}
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;
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cellbase:
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/* empty */
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{
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$$ = 16;
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}
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| DT_BASE
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;
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cellval:
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DT_LITERAL
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{
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$$ = eval_literal($1, 0, 32);
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}
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| cellbase DT_LEGACYLITERAL
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{
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$$ = eval_literal($2, $1, 32);
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}
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;
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bytestring:
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/* empty */
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{
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$$ = empty_data;
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}
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| bytestring DT_BYTE
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{
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$$ = data_append_byte($1, $2);
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}
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| bytestring DT_LABEL
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{
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$$ = data_add_marker($1, LABEL, $2);
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}
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;
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subnodes:
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/* empty */
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{
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$$ = NULL;
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}
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| subnode subnodes
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{
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$$ = chain_node($1, $2);
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}
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| subnode propdef
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{
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yyerror("syntax error: properties must precede subnodes\n");
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YYERROR;
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}
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;
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subnode:
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label DT_PROPNODENAME nodedef
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{
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$$ = name_node($3, $2, $1);
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}
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;
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label:
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/* empty */
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{
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$$ = NULL;
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}
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| DT_LABEL
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{
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$$ = $1;
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}
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;
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%%
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void yyerror (char const *s)
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{
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const char *fname = srcpos_filename_for_num(yylloc.filenum);
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if (strcmp(fname, "-") == 0)
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fname = "stdin";
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fprintf(stderr, "%s:%d %s\n",
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fname, yylloc.first_line, s);
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}
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unsigned long long eval_literal(const char *s, int base, int bits)
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{
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unsigned long long val;
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char *e;
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errno = 0;
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val = strtoull(s, &e, base);
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if (*e)
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yyerror("bad characters in literal");
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else if ((errno == ERANGE)
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|| ((bits < 64) && (val >= (1ULL << bits))))
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yyerror("literal out of range");
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else if (errno != 0)
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yyerror("bad literal");
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return val;
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}
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