diff options
| -rw-r--r-- | common/fdt_support.c | 26 | ||||
| -rw-r--r-- | include/libfdt.h | 6 | ||||
| -rw-r--r-- | libfdt/fdt_ro.c | 112 | ||||
| -rw-r--r-- | libfdt/fdt_rw.c | 26 |
4 files changed, 26 insertions, 144 deletions
diff --git a/common/fdt_support.c b/common/fdt_support.c index 175d59e..6a5b27a 100644 --- a/common/fdt_support.c +++ b/common/fdt_support.c @@ -44,6 +44,32 @@ struct fdt_header *fdt; /********************************************************************/ +/** + * fdt_find_and_setprop: Find a node and set it's property + * + * @fdt: ptr to device tree + * @node: path of node + * @prop: property name + * @val: ptr to new value + * @len: length of new property value + * @create: flag to create the property if it doesn't exist + * + * Convenience function to directly set a property given the path to the node. + */ +int fdt_find_and_setprop(void *fdt, const char *node, const char *prop, + const void *val, int len, int create) +{ + int nodeoff = fdt_find_node_by_path(fdt, node); + + if (nodeoff < 0) + return nodeoff; + + if ((!create) && (fdt_get_property(fdt, nodeoff, prop, 0) == NULL)) + return 0; /* create flag not set; so exit quietly */ + + return fdt_setprop(fdt, nodeoff, prop, val, len); +} + int fdt_chosen(void *fdt, ulong initrd_start, ulong initrd_end, int force) { int nodeoffset; diff --git a/include/libfdt.h b/include/libfdt.h index 38c65a9..ba348a9 100644 --- a/include/libfdt.h +++ b/include/libfdt.h @@ -78,12 +78,6 @@ int fdt_subnode_offset_namelen(const void *fdt, int parentoffset, int fdt_subnode_offset(const void *fdt, int parentoffset, const char *name); int fdt_find_node_by_path(const void *fdt, const char *path); -int fdt_find_node_by_type(const void *fdt, int nodeoffset, const char *type); - -int fdt_node_is_compatible(const void *fdt, int nodeoffset, - const char *compat); -int fdt_find_compatible_node(const void *fdt, int nodeoffset, - const char *type, const char *compat); struct fdt_property *fdt_get_property(const void *fdt, int nodeoffset, const char *name, int *lenp); diff --git a/libfdt/fdt_ro.c b/libfdt/fdt_ro.c index bc1a5f4..5816c7a 100644 --- a/libfdt/fdt_ro.c +++ b/libfdt/fdt_ro.c @@ -83,118 +83,6 @@ char *fdt_string(const void *fdt, int stroffset) } /* - * Check if the specified node is compatible by comparing the tokens - * in its "compatible" property with the specified string: - * - * nodeoffset - starting place of the node - * compat - the string to match to one of the tokens in the - * "compatible" list. - */ -int fdt_node_is_compatible(const void *fdt, int nodeoffset, - const char *compat) -{ - const char* cp; - int cplen, len; - - cp = fdt_getprop(fdt, nodeoffset, "compatible", &cplen); - if (cp == NULL) - return 0; - while (cplen > 0) { - if (strncmp(cp, compat, strlen(compat)) == 0) - return 1; - len = strlen(cp) + 1; - cp += len; - cplen -= len; - } - - return 0; -} - -/* - * Find a node by its device type property. On success, the offset of that - * node is returned or an error code otherwise: - * - * nodeoffset - the node to start searching from or 0, the node you pass - * will not be searched, only the next one will; typically, - * you pass 0 to start the search and then what the previous - * call returned. - * type - the device type string to match against. - */ -int fdt_find_node_by_type(const void *fdt, int nodeoffset, const char *type) -{ - int offset, nextoffset; - struct fdt_property *prop; - uint32_t tag; - int len, ret; - - CHECK_HEADER(fdt); - - tag = fdt_next_tag(fdt, nodeoffset, &nextoffset, NULL); - if (tag != FDT_BEGIN_NODE) - return -FDT_ERR_BADOFFSET; - if (nodeoffset) - nodeoffset = 0; /* start searching with next node */ - - while (1) { - offset = nextoffset; - tag = fdt_next_tag(fdt, offset, &nextoffset, NULL); - - switch (tag) { - case FDT_BEGIN_NODE: - nodeoffset = offset; - break; - - case FDT_PROP: - if (nodeoffset == 0) - break; - ret = prop_name_eq(fdt, offset, "device_type", - &prop, &len); - if (ret < 0) - return ret; - else if (ret > 0 && - strncmp(prop->data, type, len - 1) == 0) - return nodeoffset; - break; - - case FDT_END_NODE: - case FDT_NOP: - break; - - case FDT_END: - return -FDT_ERR_NOTFOUND; - - default: - return -FDT_ERR_BADSTRUCTURE; - } - } -} - -/* - * Find a node based on its device type and one of the tokens in its its - * "compatible" property. On success, the offset of that node is returned - * or an error code otherwise: - * - * nodeoffset - the node to start searching from or 0, the node you pass - * will not be searched, only the next one will; typically, - * you pass 0 to start the search and then what the previous - * call returned. - * type - the device type string to match against. - * compat - the string to match to one of the tokens in the - * "compatible" list. - */ -int fdt_find_compatible_node(const void *fdt, int nodeoffset, - const char *type, const char *compat) -{ - int offset; - - offset = fdt_find_node_by_type(fdt, nodeoffset, type); - if (offset < 0 || fdt_node_is_compatible(fdt, offset, compat)) - return offset; - - return -FDT_ERR_NOTFOUND; -} - -/* * Return the node offset of the node specified by: * parentoffset - starting place (0 to start at the root) * name - name being searched for diff --git a/libfdt/fdt_rw.c b/libfdt/fdt_rw.c index 852b6e6..aaafc53 100644 --- a/libfdt/fdt_rw.c +++ b/libfdt/fdt_rw.c @@ -185,32 +185,6 @@ int fdt_setprop(void *fdt, int nodeoffset, const char *name, return 0; } -/** - * fdt_find_and_setprop: Find a node and set it's property - * - * @fdt: ptr to device tree - * @node: path of node - * @prop: property name - * @val: ptr to new value - * @len: length of new property value - * @create: flag to create the property if it doesn't exist - * - * Convenience function to directly set a property given the path to the node. - */ -int fdt_find_and_setprop(void *fdt, const char *node, const char *prop, - const void *val, int len, int create) -{ - int nodeoff = fdt_find_node_by_path(fdt, node); - - if (nodeoff < 0) - return nodeoff; - - if ((!create) && (fdt_get_property(fdt, nodeoff, prop, 0) == NULL)) - return 0; /* create flag not set; so exit quietly */ - - return fdt_setprop(fdt, nodeoff, prop, val, len); -} - int fdt_delprop(void *fdt, int nodeoffset, const char *name) { struct fdt_property *prop; |