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authorSascha Hauer <s.hauer@pengutronix.de>2013-08-13 16:53:15 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2013-08-14 10:05:37 +0200
commit6d06c4e318382a5c0bc1e2243b77f58d5ecd88ea (patch)
tree3f6768430e718bda5b49d98af6154cf3ac7dcba5 /commands/of_property.c
parent7a15e03fca742e35f1a1bc3103015b8965860b94 (diff)
downloadbarebox-6d06c4e318382a5c0bc1e2243b77f58d5ecd88ea.tar.gz
of_property command: allow to set phandles
With this properties with phandles can be created. A phandle is created when cells are parsed (in '<' '>') and a cell does not begin with a digit. The phandles can be specified either by alias or by full path. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'commands/of_property.c')
-rw-r--r--commands/of_property.c34
1 files changed, 32 insertions, 2 deletions
diff --git a/commands/of_property.c b/commands/of_property.c
index a544f71..4518c72 100644
--- a/commands/of_property.c
+++ b/commands/of_property.c
@@ -55,7 +55,36 @@ static int of_parse_prop_cells(char * const *newval, int count, char *data, int
}
cp = newp;
- tmp = simple_strtoul(cp, &newp, 0);
+
+ if (isdigit(*cp)) {
+ tmp = simple_strtoul(cp, &newp, 0);
+ } else {
+ struct device_node *n;
+ char *str;
+ int len = 0;
+
+ str = cp;
+ while (*str && *str != '>' && *str != ' ') {
+ str++;
+ len++;
+ }
+
+ str = xzalloc(len + 1);
+ strncpy(str, cp, len);
+
+ n = of_find_node_by_path_or_alias(NULL, str);
+ if (!n)
+ printf("Cannot find node '%s'\n", str);
+
+ free(str);
+
+ if (!n)
+ return -EINVAL;
+
+ tmp = of_node_create_phandle(n);
+ newp += len;
+ }
+
*(__be32 *)data = __cpu_to_be32(tmp);
data += 4;
*len += 4;
@@ -276,7 +305,8 @@ BAREBOX_CMD_HELP_USAGE("of_property [OPTIONS] [NODE] [PROPERTY] [VALUES]\n")
BAREBOX_CMD_HELP_OPT ("-s", "set property to value\n")
BAREBOX_CMD_HELP_OPT ("-d", "delete property\n")
BAREBOX_CMD_HELP_TEXT ("\nvalid formats for values:\n")
-BAREBOX_CMD_HELP_TEXT ("<0x00112233 4 05> - an array of cells\n")
+BAREBOX_CMD_HELP_TEXT ("<0x00112233 4 05> - an array of cells. cells not beginning with a digit are\n")
+BAREBOX_CMD_HELP_TEXT (" interpreted as node pathes and converted to phandles\n")
BAREBOX_CMD_HELP_TEXT ("[00 11 22 .. nn] - byte stream\n")
BAREBOX_CMD_HELP_TEXT ("If the value does not start with '<' or '[' it is interpreted as strings\n")
BAREBOX_CMD_HELP_END