Merge git://git.denx.de/u-boot-fdt

2 files changed, 147 insertions, 0 deletions

diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index 06d4542029..4f66ae172f 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -708,4 +708,75 @@ int fdtdec_read_fmap_entry(const void *blob, int node, const char *name,
 
 	return 0;
 }
+
+static u64 fdtdec_get_number(const fdt32_t *ptr, unsigned int cells)
+{
+	u64 number = 0;
+
+	while (cells--)
+		number = (number << 32) | fdt32_to_cpu(*ptr++);
+
+	return number;
+}
+
+int fdt_get_resource(const void *fdt, int node, const char *property,
+		     unsigned int index, struct fdt_resource *res)
+{
+	const fdt32_t *ptr, *end;
+	int na, ns, len, parent;
+	unsigned int i = 0;
+
+	parent = fdt_parent_offset(fdt, node);
+	if (parent < 0)
+		return parent;
+
+	na = fdt_address_cells(fdt, parent);
+	ns = fdt_size_cells(fdt, parent);
+
+	ptr = fdt_getprop(fdt, node, property, &len);
+	if (!ptr)
+		return len;
+
+	end = ptr + len / sizeof(*ptr);
+
+	while (ptr + na + ns <= end) {
+		if (i == index) {
+			res->start = res->end = fdtdec_get_number(ptr, na);
+			res->end += fdtdec_get_number(&ptr[na], ns) - 1;
+			return 0;
+		}
+
+		ptr += na + ns;
+		i++;
+	}
+
+	return -FDT_ERR_NOTFOUND;
+}
+
+int fdt_get_named_resource(const void *fdt, int node, const char *property,
+			   const char *prop_names, const char *name,
+			   struct fdt_resource *res)
+{
+	int index;
+
+	index = fdt_find_string(fdt, node, prop_names, name);
+	if (index < 0)
+		return index;
+
+	return fdt_get_resource(fdt, node, property, index, res);
+}
+
+int fdtdec_pci_get_bdf(const void *fdt, int node, int *bdf)
+{
+	const fdt32_t *prop;
+	int len;
+
+	prop = fdt_getprop(fdt, node, "reg", &len);
+	if (!prop)
+		return len;
+
+	*bdf = fdt32_to_cpu(*prop) & 0xffffff;
+
+	return 0;
+}
 #endif
diff --git a/lib/libfdt/fdt_ro.c b/lib/libfdt/fdt_ro.c
index 36af043525..03733e574f 100644
--- a/lib/libfdt/fdt_ro.c
+++ b/lib/libfdt/fdt_ro.c
@@ -491,6 +491,82 @@ int fdt_stringlist_contains(const char *strlist, int listlen, const char *str)
 	return 0;
 }
 
+int fdt_count_strings(const void *fdt, int node, const char *property)
+{
+	int length, i, count = 0;
+	const char *list;
+
+	list = fdt_getprop(fdt, node, property, &length);
+	if (!list)
+		return -length;
+
+	for (i = 0; i < length; i++) {
+		int len = strlen(list);
+
+		list += len + 1;
+		i += len;
+		count++;
+	}
+
+	return count;
+}
+
+int fdt_find_string(const void *fdt, int node, const char *property,
+		    const char *string)
+{
+	const char *list, *end;
+	int len, index = 0;
+
+	list = fdt_getprop(fdt, node, property, &len);
+	if (!list)
+		return len;
+
+	end = list + len;
+	len = strlen(string);
+
+	while (list < end) {
+		int l = strlen(list);
+
+		if (l == len && memcmp(list, string, len) == 0)
+			return index;
+
+		list += l + 1;
+		index++;
+	}
+
+	return -FDT_ERR_NOTFOUND;
+}
+
+int fdt_get_string_index(const void *fdt, int node, const char *property,
+			 int index, const char **output)
+{
+	const char *list;
+	int length, i;
+
+	list = fdt_getprop(fdt, node, property, &length);
+
+	for (i = 0; i < length; i++) {
+		int len = strlen(list);
+
+		if (index == 0) {
+			*output = list;
+			return 0;
+		}
+
+		list += len + 1;
+		i += len;
+		index--;
+	}
+
+	return FDT_ERR_NOTFOUND;
+}
+
+int fdt_get_string(const void *fdt, int node, const char *property,
+		   const char **output)
+{
+	return fdt_get_string_index(fdt, node, property, 0, output);
+}
+
 int fdt_node_check_compatible(const void *fdt, int nodeoffset,
 			      const char *compatible)
 {