X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=libfdt%2Ffdt_wip.c;h=2d39aabe1fe9872c2a9e5e441979426244e063fd;hb=9675ee7208ab965d13ea8d8262d77ac4160ef549;hp=261b9b0dc9379f714fd00ea2a0806d065a269336;hpb=c8f228016202aff5ff09cdeeabe8cffd8d898510;p=u-boot

diff --git a/libfdt/fdt_wip.c b/libfdt/fdt_wip.c
index 261b9b0dc9..2d39aabe1f 100644
--- a/libfdt/fdt_wip.c
+++ b/libfdt/fdt_wip.c
@@ -16,6 +16,9 @@
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  */
+#include "config.h"
+#if CONFIG_OF_LIBFDT
+
 #include "libfdt_env.h"
 
 #include <fdt.h>
@@ -110,3 +113,30 @@ int fdt_nop_node(void *fdt, int nodeoffset)
 	nop_region(fdt_offset_ptr(fdt, nodeoffset, 0), endoffset - nodeoffset);
 	return 0;
 }
+
+/*
+ * Replace a reserve map entry in the nth slot.
+ */
+int fdt_replace_reservemap_entry(void *fdt, int n, uint64_t addr, uint64_t size)
+{
+	struct fdt_reserve_entry *re;
+	int  used;
+	int  total;
+	int  err;
+
+	err = fdt_num_reservemap(fdt, &used, &total);
+	if (err != 0)
+		return err;
+
+	if (n >= total)
+		return -FDT_ERR_NOSPACE;
+	re = (struct fdt_reserve_entry *)
+		(fdt + fdt_off_mem_rsvmap(fdt) +
+		 (n * sizeof(struct fdt_reserve_entry)));
+	re->address = cpu_to_fdt64(addr);
+	re->size    = cpu_to_fdt64(size);
+
+	return 0;
+}
+
+#endif /* CONFIG_OF_LIBFDT */