/*
* Flattened Device Tree command, see the help for parameter definitions.
*/
int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
{
char op;
if (argc < 2) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
/*
* Figure out which subcommand was given
*/
op = argv[1][0];
/********************************************************************
* Set the address of the fdt
********************************************************************/
if (op == 'a') {
/*
* Set the address [and length] of the fdt.
*/
fdt = (struct fdt_header *)simple_strtoul(argv[2], NULL, 16);
if (!fdt_valid()) {
return 1;
}
if (argc >= 4) {
int len;
int err;
/*
* Optional new length
*/
len = simple_strtoul(argv[3], NULL, 16);
if (len < fdt_totalsize(fdt)) {
printf ("New length %d < existing length %d, ignoring.\n",
len, fdt_totalsize(fdt));
} else {
/*
* Open in place with a new length.
*/
err = fdt_open_into(fdt, fdt, len);
if (err != 0) {
printf ("libfdt: %s\n", fdt_strerror(err));
}
}
}
/********************************************************************
* Move the fdt
********************************************************************/
} else if (op == 'm' && argv[1][1] == 'o') {
struct fdt_header *newaddr;
int len;
int err;
if (argc != 5) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
/*
* Set the address and length of the fdt.
*/
fdt = (struct fdt_header *)simple_strtoul(argv[2], NULL, 16);
if (!fdt_valid()) {
return 1;
}
newaddr = (struct fdt_header *)simple_strtoul(argv[3], NULL, 16);
len = simple_strtoul(argv[4], NULL, 16);
if (len < fdt_totalsize(fdt)) {
printf ("New length %d < existing length %d, aborting.\n",
len, fdt_totalsize(fdt));
return 1;
}
/*
* Copy to the new location.
*/
err = fdt_open_into(fdt, newaddr, len);
if (err != 0) {
printf ("libfdt: %s\n", fdt_strerror(err));
return 1;
}
fdt = newaddr;
/********************************************************************
* mknode
********************************************************************/
} else if (op == 'm' && argv[1][1] == 'k') {
char *pathp = argv[2];
char *node = argv[3];
int nodeoffset;
if (argc != 4) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
/*
* See if the node already exists
*/
if (strcmp(pathp, "/") == 0)
nodeoffset = 0;
else
nodeoffset = fdt_path_offset (fdt, pathp);
if (nodeoffset < 0) {
printf("parent node %s doesn't exist\n", pathp);
return 1;
}
/*
* Create the new node
*/
nodeoffset = fdt_add_subnode(fdt, nodeoffset, node);
if (nodeoffset < 0) {
printf("libfdt: %s\n", fdt_strerror(nodeoffset));
return 1;
}
/********************************************************************
* Set the value of a node in the fdt.
********************************************************************/
} else if (op == 's') {
char *pathp; /* path */
char *prop; /* property */
struct fdt_property *nodep; /* node struct pointer */
char *newval; /* value from the user (as a string) */
char *vp; /* temporary value pointer */
char *cp; /* temporary char pointer */
int nodeoffset; /* node offset from libfdt */
int len; /* new length of the property */
int oldlen; /* original length of the property */
unsigned long tmp; /* holds converted values */
int ret; /* return value */
/*
* Parameters: Node path, property, value.
*/
if (argc < 5) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
pathp = argv[2];
prop = argv[3];
newval = argv[4];
if (strcmp(pathp, "/") == 0) {
nodeoffset = 0;
} else {
nodeoffset = fdt_path_offset (fdt, pathp);
if (nodeoffset < 0) {
/*
* Not found or something else bad happened.
*/
printf ("libfdt: %s\n", fdt_strerror(nodeoffset));
return 1;
}
}
nodep = fdt_getprop (fdt, nodeoffset, prop, &oldlen);
if (oldlen == 0) {
/*
* The specified property has no value
*/
printf("%s has no value, cannot set one (yet).\n", prop);
return 1;
} else {
/*
* Convert the new property
*/
vp = data;
if (*newval == '<') {
/*
* Bigger values than bytes.
*/
len = 0;
newval++;
while ((*newval != '>') && (*newval != '\0')) {
cp = newval;
tmp = simple_strtoul(cp, &newval, 16);
if ((newval - cp) <= 2) {
*vp = tmp & 0xFF;
vp += 1;
len += 1;
} else if ((newval - cp) <= 4) {
*(uint16_t *)vp = __cpu_to_be16(tmp);
vp += 2;
len += 2;
} else if ((newval - cp) <= 8) {
*(uint32_t *)vp = __cpu_to_be32(tmp);
vp += 4;
len += 4;
} else {
printf("Sorry, I could not convert \"%s\"\n", cp);
return 1;
}
while (*newval == ' ')
newval++;
}
if (*newval != '>') {
printf("Unexpected character '%c'\n", *newval);
return 1;
}
} else if (*newval == '[') {
/*
* Byte stream. Convert the values.
*/
len = 0;
newval++;
while ((*newval != ']') && (*newval != '\0')) {
tmp = simple_strtoul(newval, &newval, 16);
*vp++ = tmp & 0xFF;
len++;
while (*newval == ' ')
newval++;
}
if (*newval != ']') {
printf("Unexpected character '%c'\n", *newval);
return 1;
}
} else {
/*
* Assume it is a string. Copy it into our data area for
* convenience (including the terminating '\0').
*/
len = strlen(newval) + 1;
strcpy(data, newval);
}
ret = fdt_setprop(fdt, nodeoffset, prop, data, len);
if (ret < 0) {
printf ("libfdt %s\n", fdt_strerror(ret));
return 1;
}
}
/********************************************************************
* Print (recursive) / List (single level)
********************************************************************/
} else if ((op == 'p') || (op == 'l')) {
/*
* Recursively print (a portion of) the fdt.
*/
static int offstack[MAX_LEVEL];
static char tabs[MAX_LEVEL+1] = "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t";
int depth = MAX_LEVEL; /* how deep to print */
char *pathp; /* path */
char *prop; /* property */
void *nodep; /* property node pointer */
int nodeoffset; /* node offset from libfdt */
int nextoffset; /* next node offset from libfdt */
uint32_t tag; /* tag */
int len; /* length of the property */
int level = 0; /* keep track of nesting level */
/*
* list is an alias for print, but limited to 1 level
*/
if (op == 'l') {
depth = 1;
}
/*
* Get the starting path. The root node is an oddball,
* the offset is zero and has no name.
*/
pathp = argv[2];
if (argc > 3)
prop = argv[3];
else
prop = NULL;
if (strcmp(pathp, "/") == 0) {
nodeoffset = 0;
printf("/");
} else {
nodeoffset = fdt_path_offset (fdt, pathp);
if (nodeoffset < 0) {
/*
* Not found or something else bad happened.
*/
printf ("libfdt %s\n", fdt_strerror(nodeoffset));
return 1;
}
}
/*
* The user passed in a property as well as node path. Print only
* the given property and then return.
*/
if (prop) {
nodep = fdt_getprop (fdt, nodeoffset, prop, &len);
if (len == 0) {
printf("%s %s\n", pathp, prop); /* no property value */
return 0;
} else if (len > 0) {
printf("%s=", prop);
print_data (nodep, len);
printf("\n");
return 0;
} else {
printf ("libfdt %s\n", fdt_strerror(len));
return 1;
}
}
/*
* The user passed in a node path and no property, print the node
* and all subnodes.
*/
offstack[0] = nodeoffset;
while(level >= 0) {
tag = fdt_next_tag(fdt, nodeoffset, &nextoffset, &pathp);
switch(tag) {
case FDT_BEGIN_NODE:
if(level <= depth)
printf("%s%s {\n", &tabs[MAX_LEVEL - level], pathp);
level++;
offstack[level] = nodeoffset;
if (level >= MAX_LEVEL) {
printf("Aaaiii <splat> nested too deep.\n");
return 1;
}
break;
case FDT_END_NODE:
level--;
if(level <= depth)
printf("%s};\n", &tabs[MAX_LEVEL - level]);
if (level == 0) {
level = -1; /* exit the loop */
}
break;
case FDT_PROP:
nodep = fdt_getprop (fdt, offstack[level], pathp, &len);
if (len < 0) {
printf ("libfdt %s\n", fdt_strerror(len));
return 1;
} else if (len == 0) {
/* the property has no value */
if(level <= depth)
printf("%s%s;\n", &tabs[MAX_LEVEL - level], pathp);
} else {
if(level <= depth) {
printf("%s%s=", &tabs[MAX_LEVEL - level], pathp);
print_data (nodep, len);
printf(";\n");
}
}
break;
case FDT_NOP:
break;
case FDT_END:
return 1;
default:
if(level <= depth)
printf("Unknown tag 0x%08X\n", tag);
return 1;
}
nodeoffset = nextoffset;
}
/********************************************************************
* Remove a property/node
********************************************************************/
} else if (op == 'r') {
int nodeoffset; /* node offset from libfdt */
int err;
/*
* Get the path. The root node is an oddball, the offset
* is zero and has no name.
*/
if (strcmp(argv[2], "/") == 0) {
nodeoffset = 0;
} else {
nodeoffset = fdt_path_offset (fdt, argv[2]);
if (nodeoffset < 0) {
/*
* Not found or something else bad happened.
*/
printf ("libfdt %s\n", fdt_strerror(nodeoffset));
return 1;
}
}
/*
* Do the delete. A fourth parameter means delete a property,
* otherwise delete the node.
*/
if (argc > 3) {
err = fdt_delprop(fdt, nodeoffset, argv[3]);
if (err < 0) {
printf("fdt_delprop libfdt: %s\n", fdt_strerror(err));
return err;
}
} else {
err = fdt_del_node(fdt, nodeoffset);
if (err < 0) {
printf("fdt_del_node libfdt: %s\n", fdt_strerror(err));
return err;
}
}
/********************************************************************
* Create a chosen node
********************************************************************/
} else if (op == 'c') {
fdt_chosen(fdt, 0, 0, 1);
#ifdef CONFIG_OF_HAS_UBOOT_ENV
/********************************************************************
* Create a u-boot-env node
********************************************************************/
} else if (op == 'e') {
fdt_env(fdt);
#endif
#ifdef CONFIG_OF_HAS_BD_T
/********************************************************************
* Create a bd_t node
********************************************************************/
} else if (op == 'b') {
fdt_bd_t(fdt);
#endif
/********************************************************************
* Unrecognized command
********************************************************************/
} else {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
return 0;
}
/*
* Flattened Device Tree command, see the help for parameter definitions.
*/
int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
{
if (argc < 2) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
/********************************************************************
* Set the address of the fdt
********************************************************************/
if (argv[1][0] == 'a') {
/*
* Set the address [and length] of the fdt.
*/
fdt = (struct fdt_header *)simple_strtoul(argv[2], NULL, 16);
if (!fdt_valid()) {
return 1;
}
if (argc >= 4) {
int len;
int err;
/*
* Optional new length
*/
len = simple_strtoul(argv[3], NULL, 16);
if (len < fdt_totalsize(fdt)) {
printf ("New length %d < existing length %d, "
"ignoring.\n",
len, fdt_totalsize(fdt));
} else {
/*
* Open in place with a new length.
*/
err = fdt_open_into(fdt, fdt, len);
if (err != 0) {
printf ("libfdt fdt_open_into(): %s\n",
fdt_strerror(err));
}
}
}
/********************************************************************
* Move the fdt
********************************************************************/
} else if ((argv[1][0] == 'm') && (argv[1][1] == 'o')) {
struct fdt_header *newaddr;
int len;
int err;
if (argc < 4) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
/*
* Set the address and length of the fdt.
*/
fdt = (struct fdt_header *)simple_strtoul(argv[2], NULL, 16);
if (!fdt_valid()) {
return 1;
}
newaddr = (struct fdt_header *)simple_strtoul(argv[3],NULL,16);
/*
* If the user specifies a length, use that. Otherwise use the
* current length.
*/
if (argc <= 4) {
len = fdt_totalsize(fdt);
} else {
len = simple_strtoul(argv[4], NULL, 16);
if (len < fdt_totalsize(fdt)) {
printf ("New length 0x%X < existing length "
"0x%X, aborting.\n",
len, fdt_totalsize(fdt));
return 1;
}
}
/*
* Copy to the new location.
*/
err = fdt_open_into(fdt, newaddr, len);
if (err != 0) {
printf ("libfdt fdt_open_into(): %s\n",
fdt_strerror(err));
return 1;
}
fdt = newaddr;
/********************************************************************
* Make a new node
********************************************************************/
} else if ((argv[1][0] == 'm') && (argv[1][1] == 'k')) {
char *pathp; /* path */
char *nodep; /* new node to add */
int nodeoffset; /* node offset from libfdt */
int err;
/*
* Parameters: Node path, new node to be appended to the path.
*/
if (argc < 4) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
pathp = argv[2];
nodep = argv[3];
nodeoffset = fdt_path_offset (fdt, pathp);
if (nodeoffset < 0) {
/*
* Not found or something else bad happened.
*/
printf ("libfdt fdt_path_offset() returned %s\n",
fdt_strerror(nodeoffset));
return 1;
}
err = fdt_add_subnode(fdt, nodeoffset, nodep);
if (err < 0) {
printf ("libfdt fdt_add_subnode(): %s\n",
fdt_strerror(err));
return 1;
}
/********************************************************************
* Set the value of a property in the fdt.
********************************************************************/
} 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.
*/
if (argc < 5) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
pathp = argv[2];
prop = argv[3];
newval = argv[4];
nodeoffset = fdt_path_offset (fdt, pathp);
if (nodeoffset < 0) {
/*
* Not found or something else bad happened.
*/
printf ("libfdt fdt_path_offset() returned %s\n",
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) {
printf ("libfdt fdt_setprop(): %s\n", fdt_strerror(ret));
return 1;
}
/********************************************************************
* Print (recursive) / List (single level)
********************************************************************/
} else if ((argv[1][0] == 'p') || (argv[1][0] == 'l')) {
int depth = MAX_LEVEL; /* how deep to print */
char *pathp; /* path */
char *prop; /* property */
int ret; /* return value */
static char root[2] = "/";
/*
* list is an alias for print, but limited to 1 level
*/
if (argv[1][0] == 'l') {
depth = 1;
}
/*
* Get the starting path. The root node is an oddball,
* the offset is zero and has no name.
*/
if (argc == 2)
pathp = root;
else
pathp = argv[2];
if (argc > 3)
prop = argv[3];
else
prop = NULL;
ret = fdt_print(pathp, prop, depth);
if (ret != 0)
return ret;
/********************************************************************
* Remove a property/node
********************************************************************/
} else if (argv[1][0] == 'r') {
int nodeoffset; /* node offset from libfdt */
int err;
/*
* Get the path. The root node is an oddball, the offset
* is zero and has no name.
*/
nodeoffset = fdt_path_offset (fdt, argv[2]);
if (nodeoffset < 0) {
/*
* Not found or something else bad happened.
*/
printf ("libfdt fdt_path_offset() returned %s\n",
fdt_strerror(nodeoffset));
return 1;
}
/*
* Do the delete. A fourth parameter means delete a property,
* otherwise delete the node.
*/
if (argc > 3) {
err = fdt_delprop(fdt, nodeoffset, argv[3]);
if (err < 0) {
printf("libfdt fdt_delprop(): %s\n",
fdt_strerror(err));
return err;
}
} else {
err = fdt_del_node(fdt, nodeoffset);
if (err < 0) {
printf("libfdt fdt_del_node(): %s\n",
fdt_strerror(err));
return err;
}
}
}
#ifdef CONFIG_OF_BOARD_SETUP
/* Call the board-specific fixup routine */
else if (argv[1][0] == 'b')
ft_board_setup(fdt, gd->bd);
#endif
/* Create a chosen node */
else if (argv[1][0] == 'c')
fdt_chosen(fdt, 0, 0, 1);
#ifdef CONFIG_OF_HAS_UBOOT_ENV
/* Create a u-boot-env node */
else if (argv[1][0] == 'e')
fdt_env(fdt);
#endif
#ifdef CONFIG_OF_HAS_BD_T
/* Create a bd_t node */
else if (argv[1][0] == 'b')
fdt_bd_t(fdt);
#endif
else {
/* Unrecognized command */
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
return 0;
}
