of: merge of_*_flat_dt*() functions

Merge common flattened device tree code between Microblaze and PowerPC

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Michal Simek <monstr@monstr.eu>
Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>

1 files changed, 14 insertions, 0 deletions

diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index b37ad3a973b9..b363eadea819 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -12,6 +12,9 @@
 #ifndef _LINUX_OF_FDT_H
 #define _LINUX_OF_FDT_H
 
+#include <linux/types.h>
+#include <linux/init.h>
+
 /* Definitions used by the flattened device tree */
 #define OF_DT_HEADER            0xd00dfeed      /* marker */
 #define OF_DT_BEGIN_NODE        0x1             /* Start of node, full name */
@@ -54,5 +57,16 @@ struct boot_param_header {
         u32     dt_struct_size;         /* size of the DT structure block */
 };
 
+/* For scanning the flat device-tree at boot time */
+extern int __init of_scan_flat_dt(int (*it)(unsigned long node,
+                                            const char *uname, int depth,
+                                            void *data),
+                                  void *data);
+extern void __init *of_get_flat_dt_prop(unsigned long node, const char *name,
+                                        unsigned long *size);
+extern int __init of_flat_dt_is_compatible(unsigned long node,
+                                           const char *name);
+extern unsigned long __init of_get_flat_dt_root(void);
+
 #endif /* __ASSEMBLY__ */
 #endif /* _LINUX_OF_FDT_H */