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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>
This commit is contained in:
Sascha Hauer 2013-08-13 16:53:15 +02:00
parent 7a15e03fca
commit 6d06c4e318
1 changed files with 32 additions and 2 deletions
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34
commands/of_property.c
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@ -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