1 files changed, 48 insertions, 0 deletions

diff --git a/include/linux/of_address.h b/include/linux/of_address.h
index 0506eb53519b..4c2e6f26432c 100644
--- a/include/linux/of_address.h
+++ b/include/linux/of_address.h
@@ -4,6 +4,36 @@
 #include <linux/errno.h>
 #include <linux/of.h>
 
+struct of_pci_range_parser {
+        struct device_node *node;
+        const __be32 *range;
+        const __be32 *end;
+        int np;
+        int pna;
+};
+
+struct of_pci_range {
+        u32 pci_space;
+        u64 pci_addr;
+        u64 cpu_addr;
+        u64 size;
+        u32 flags;
+};
+
+#define for_each_of_pci_range(parser, range) \
+        for (; of_pci_range_parser_one(parser, range);)
+
+static inline void of_pci_range_to_resource(struct of_pci_range *range,
+                                            struct device_node *np,
+                                            struct resource *res)
+{
+        res->flags = range->flags;
+        res->start = range->cpu_addr;
+        res->end = range->cpu_addr + range->size - 1;
+        res->parent = res->child = res->sibling = NULL;
+        res->name = np->full_name;
+}
+
 #ifdef CONFIG_OF_ADDRESS
 extern u64 of_translate_address(struct device_node *np, const __be32 *addr);
 extern bool of_can_translate_address(struct device_node *dev);
@@ -27,6 +57,11 @@ static inline unsigned long pci_address_to_pio(phys_addr_t addr) { return -1; }
 #define pci_address_to_pio pci_address_to_pio
 #endif
 
+extern int of_pci_range_parser_init(struct of_pci_range_parser *parser,
+                        struct device_node *node);
+extern struct of_pci_range *of_pci_range_parser_one(
+                                        struct of_pci_range_parser *parser,
+                                        struct of_pci_range *range);
 #else /* CONFIG_OF_ADDRESS */
 #ifndef of_address_to_resource
 static inline int of_address_to_resource(struct device_node *dev, int index,
@@ -53,6 +88,19 @@ static inline const __be32 *of_get_address(struct device_node *dev, int index,
 {
         return NULL;
 }
+
+static inline int of_pci_range_parser_init(struct of_pci_range_parser *parser,
+                        struct device_node *node)
+{
+        return -1;
+}
+
+static inline struct of_pci_range *of_pci_range_parser_one(
+                                        struct of_pci_range_parser *parser,
+                                        struct of_pci_range *range)
+{
+        return NULL;
+}
 #endif /* CONFIG_OF_ADDRESS */