diff options
| -rw-r--r-- | sys/dev/fdt/fdt_common.c | 17 | ||||
| -rw-r--r-- | sys/dev/fdt/fdt_common.h | 1 |
2 files changed, 18 insertions, 0 deletions
diff --git a/sys/dev/fdt/fdt_common.c b/sys/dev/fdt/fdt_common.c index f00519e..0198d55 100644 --- a/sys/dev/fdt/fdt_common.c +++ b/sys/dev/fdt/fdt_common.c @@ -57,6 +57,7 @@ __FBSDID("$FreeBSD$"); #define FDT_COMPAT_LEN 255 #define FDT_TYPE_LEN 64 +#define FDT_NAME_LEN 32 #define FDT_REG_CELLS 4 @@ -310,6 +311,22 @@ fdt_find_compatible(phandle_t start, const char *compat, int strict) } phandle_t +fdt_find_child(phandle_t start, const char *child_name) +{ + char name[FDT_NAME_LEN]; + phandle_t child; + + for (child = OF_child(start); child != 0; child = OF_peer(child)) { + if (OF_getprop(child, "name", name, sizeof(name)) <= 0) + continue; + if (strcmp(name, child_name) == 0) + return (child); + } + + return (0); +} + +phandle_t fdt_depth_search_compatible(phandle_t start, const char *compat, int strict) { phandle_t child, node; diff --git a/sys/dev/fdt/fdt_common.h b/sys/dev/fdt/fdt_common.h index 3d05341..6801297 100644 --- a/sys/dev/fdt/fdt_common.h +++ b/sys/dev/fdt/fdt_common.h @@ -81,6 +81,7 @@ u_long fdt_data_get(void *, int); int fdt_data_to_res(pcell_t *, int, int, u_long *, u_long *); phandle_t fdt_find_compatible(phandle_t, const char *, int); phandle_t fdt_depth_search_compatible(phandle_t, const char *, int); +phandle_t fdt_find_child(phandle_t, const char *); int fdt_get_mem_regions(struct mem_region *, int *, uint32_t *); int fdt_get_reserved_regions(struct mem_region *, int *); int fdt_get_phyaddr(phandle_t, device_t, int *, void **); |
