rockchip: dts: rk3399-puma: fix the modelling of BIOS_DISABLE

[u-boot] / lib / libfdt / fdt_sw.c

diff --git a/lib/libfdt/fdt_sw.c b/lib/libfdt/fdt_sw.c
index 580b57024ffc96843d718ed3ea7dd962acd52327..70fd026550736d16877512dd685b69380b6b2922 100644 (file)
--- a/lib/libfdt/fdt_sw.c
+++ b/lib/libfdt/fdt_sw.c
@@ -3,8 +3,7 @@
  * Copyright (C) 2006 David Gibson, IBM Corporation.
  * SPDX-License-Identifier:    GPL-2.0+ BSD-2-Clause
  */
-#include "libfdt_env.h"
-
+#include <libfdt_env.h>
 #include <fdt.h>
 #include <libfdt.h>
 
@@ -62,6 +61,38 @@ int fdt_create(void *buf, int bufsize)
        return 0;
 }
 
+int fdt_resize(void *fdt, void *buf, int bufsize)
+{
+       size_t headsize, tailsize;
+       char *oldtail, *newtail;
+
+       FDT_SW_CHECK_HEADER(fdt);
+
+       headsize = fdt_off_dt_struct(fdt);
+       tailsize = fdt_size_dt_strings(fdt);
+
+       if ((headsize + tailsize) > bufsize)
+               return -FDT_ERR_NOSPACE;
+
+       oldtail = (char *)fdt + fdt_totalsize(fdt) - tailsize;
+       newtail = (char *)buf + bufsize - tailsize;
+
+       /* Two cases to avoid clobbering data if the old and new
+        * buffers partially overlap */
+       if (buf <= fdt) {
+               memmove(buf, fdt, headsize);
+               memmove(newtail, oldtail, tailsize);
+       } else {
+               memmove(newtail, oldtail, tailsize);
+               memmove(buf, fdt, headsize);
+       }
+
+       fdt_set_off_dt_strings(buf, bufsize);
+       fdt_set_totalsize(buf, bufsize);
+
+       return 0;
+}
+
 int fdt_add_reservemap_entry(void *fdt, uint64_t addr, uint64_t size)
 {
        struct fdt_reserve_entry *re;
@@ -143,7 +174,7 @@ static int _fdt_find_add_string(void *fdt, const char *s)
        return offset;
 }
 
-int fdt_property(void *fdt, const char *name, const void *val, int len)
+int fdt_property_placeholder(void *fdt, const char *name, int len, void **valp)
 {
        struct fdt_property *prop;
        int nameoff;
@@ -161,7 +192,19 @@ int fdt_property(void *fdt, const char *name, const void *val, int len)
        prop->tag = cpu_to_fdt32(FDT_PROP);
        prop->nameoff = cpu_to_fdt32(nameoff);
        prop->len = cpu_to_fdt32(len);
-       memcpy(prop->data, val, len);
+       *valp = prop->data;
+       return 0;
+}
+
+int fdt_property(void *fdt, const char *name, const void *val, int len)
+{
+       void *ptr;
+       int ret;
+
+       ret = fdt_property_placeholder(fdt, name, len, &ptr);
+       if (ret)
+               return ret;
+       memcpy(ptr, val, len);
        return 0;
 }