fdt.h: Add grub_fdt_set_reg64 macro

Signed-off-by: Fu Wei <fu.wei@linaro.org>

diff --git a/include/grub/fdt.h b/include/grub/fdt.h
index 3016998..fdfca75 100644 (file)
--- a/include/grub/fdt.h
+++ b/include/grub/fdt.h
@@ -117,4 +117,16 @@ int grub_fdt_set_prop (void *fdt, unsigned int nodeoffset, const char *name,
   grub_fdt_set_prop ((fdt), (nodeoffset), (name), &_val, 8);   \
 })
 
+/* Setup "reg" property for
+ * #address-cells = <0x2>
+ * #size-cells = <0x2>
+ */
+#define grub_fdt_set_reg64(fdt, nodeoffset, addr, size)        \
+({ \
+  grub_uint64_t reg_64[2]; \
+  reg_64[0] = grub_cpu_to_be64(addr); \
+  reg_64[1] = grub_cpu_to_be64(size); \
+  grub_fdt_set_prop ((fdt), (nodeoffset), "reg", reg_64, 16);  \
+})
+
 #endif /* ! GRUB_FDT_HEADER */