len0rd/dtc
1
0
Fork 0
mirror of https://github.com/dgibson/dtc.git synced 2025-10-13 16:27:39 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

dtc: Plugin and fixup support

Browse source 
This patch enable the generation of symbols & local fixup information
for trees compiled with the -@ (--symbols) option.

Using this patch labels in the tree and their users emit information
in __symbols__ and __local_fixups__ nodes.

The __fixups__ node make possible the dynamic resolution of phandle
references which are present in the plugin tree but lie in the
tree that are applying the overlay against.

Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Pantelis Antoniou 2016-12-07 14:48:18 +02:00 • committed by David Gibson
parent a2c92cac53
commit 20f29d8d41
9 changed files with 373 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

28
dtc-parser.y
View file

@ -19,6 +19,7 @@
*/
%{
#include <stdio.h>
#include <inttypes.h>
#include "dtc.h"
#include "srcpos.h"
@ -52,9 +53,11 @@ extern bool treesource_error;
struct node *nodelist;
struct reserve_info *re;
uint64_t integer;
unsigned int flags;
}
%token DT_V1
%token DT_PLUGIN
%token DT_MEMRESERVE
%token DT_LSHIFT DT_RSHIFT DT_LE DT_GE DT_EQ DT_NE DT_AND DT_OR
%token DT_BITS
@ -71,6 +74,8 @@ extern bool treesource_error;
%type <data> propdata
%type <data> propdataprefix
%type <flags> versioninfo
%type <flags> plugindecl
%type <re> memreserve
%type <re> memreserves
%type <array> arrayprefix
@ -101,16 +106,33 @@ extern bool treesource_error;
%%
sourcefile:
v1tag memreserves devicetree
versioninfo plugindecl memreserves devicetree
{
the_boot_info = build_boot_info($2, $3,
guess_boot_cpuid($3));
the_boot_info = build_boot_info($1 | $2, $3, $4,
guess_boot_cpuid($4));
}
;
versioninfo:
v1tag
{
$$ = DTSF_V1;
}
;
v1tag:
DT_V1 ';'
| DT_V1 ';' v1tag
plugindecl:
DT_PLUGIN ';'
{
$$ = DTSF_PLUGIN;
}
| /* empty */
{
$$ = 0;
}
;
memreserves: