diff options
| -rw-r--r-- | xen/common/device_tree.c | 38 | ||||
| -rw-r--r-- | xen/include/xen/device_tree.h | 1 |
2 files changed, 39 insertions, 0 deletions
diff --git a/xen/common/device_tree.c b/xen/common/device_tree.c index 8f5d8997da..d4b15569ff 100644 --- a/xen/common/device_tree.c +++ b/xen/common/device_tree.c @@ -103,6 +103,44 @@ int device_tree_for_each_node(const void *fdt, return 0; } +static int dump_node(const void *fdt, int node, const char *name, int depth, + u32 address_cells, u32 size_cells, void *data) +{ + char prefix[2*MAX_DEPTH + 1] = ""; + int i; + int prop; + + for ( i = 0; i < depth; i++ ) + safe_strcat(prefix, " "); + + if ( name[0] == '\0' ) + name = "/"; + printk("%s%s:\n", prefix, name); + + for ( prop = fdt_first_property_offset(fdt, node); + prop >= 0; + prop = fdt_next_property_offset(fdt, prop) ) + { + const struct fdt_property *p; + + p = fdt_get_property_by_offset(fdt, prop, NULL); + + printk("%s %s\n", prefix, fdt_string(fdt, fdt32_to_cpu(p->nameoff))); + } + + return 0; +} + +/** + * device_tree_dump - print a text representation of a device tree + * @fdt: flat device tree to print + */ +void device_tree_dump(const void *fdt) +{ + device_tree_for_each_node(fdt, dump_node, NULL); +} + + static void __init process_memory_node(const void *fdt, int node, const char *name, u32 address_cells, u32 size_cells) diff --git a/xen/include/xen/device_tree.h b/xen/include/xen/device_tree.h index 505f3e326e..b91b39f352 100644 --- a/xen/include/xen/device_tree.h +++ b/xen/include/xen/device_tree.h @@ -41,5 +41,6 @@ paddr_t device_tree_get_xen_paddr(void); int device_tree_for_each_node(const void *fdt, device_tree_node_func func, void *data); +void device_tree_dump(const void *fdt); #endif |