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authorGerald Van Baren <vanbaren@cideas.com>2008-01-05 14:52:04 -0500
committerGerald Van Baren <vanbaren@cideas.com>2008-01-08 15:03:13 -0500
commitea6d8be153ceaf16958f8009cea6d75f3ff58d92 (patch)
tree87a68ee393eabc90ec35ac991a775d1753f82b96 /common/cmd_fdt.c
parent22fb2246df91bfc840d87f0c5910818bad55577a (diff)
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Support setting FDT properties with optional values.
Fix a bug found and documented by Bartlomiej Sieka where the optional value on "fdt set <path> <prop> [<val>]" wasn't optional. => fdt mknode / testnode => fdt print /testnode testnode { }; => fdt set /testnode testprop => fdt print /testnode testnode { testprop; }; Signed-off-by: Gerald Van Baren <vanbaren@cideas.com>
Diffstat (limited to 'common/cmd_fdt.c')
-rw-r--r--common/cmd_fdt.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/common/cmd_fdt.c b/common/cmd_fdt.c
index 4639126..74e28b5 100644
--- a/common/cmd_fdt.c
+++ b/common/cmd_fdt.c
@@ -184,23 +184,28 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
} else if (argv[1][0] == 's') {
char *pathp; /* path */
char *prop; /* property */
- char *newval; /* value from the user (as a string) */
int nodeoffset; /* node offset from libfdt */
static char data[SCRATCHPAD]; /* storage for the property */
int len; /* new length of the property */
int ret; /* return value */
/*
- * Parameters: Node path, property, value.
+ * Parameters: Node path, property, optional value.
*/
- if (argc < 5) {
+ if (argc < 4) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
pathp = argv[2];
prop = argv[3];
- newval = argv[4];
+ if (argc == 4) {
+ len = 0;
+ } else {
+ ret = fdt_parse_prop(pathp, prop, argv[4], data, &len);
+ if (ret != 0)
+ return ret;
+ }
nodeoffset = fdt_path_offset (fdt, pathp);
if (nodeoffset < 0) {
@@ -211,9 +216,6 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
fdt_strerror(nodeoffset));
return 1;
}
- ret = fdt_parse_prop(pathp, prop, newval, data, &len);
- if (ret != 0)
- return ret;
ret = fdt_setprop(fdt, nodeoffset, prop, data, len);
if (ret < 0) {