lib/binman.c

   1 // SPDX-License-Identifier: Intel
   2 /*
   3  * Access to binman information at runtime
   4  *
   5  * Copyright 2019 Google LLC
   6  * Written by Simon Glass <sjg@chromium.org>
   7  */
   8
   9 #include <common.h>
  10 #include <binman.h>
  11 #include <dm.h>
  12 #include <malloc.h>
  13
  14 struct binman_info {
  15         ofnode image;
  16 };
  17
  18 static struct binman_info *binman;
  19
  20 int binman_entry_find(const char *name, struct binman_entry *entry)
  21 {
  22         ofnode node;
  23         int ret;
  24
  25         node = ofnode_find_subnode(binman->image, name);
  26         if (!ofnode_valid(node))
  27                 return log_msg_ret("no binman node", -ENOENT);
  28
  29         ret = ofnode_read_u32(node, "image-pos", &entry->image_pos);
  30         if (ret)
  31                 return log_msg_ret("bad binman node1", ret);
  32         ret = ofnode_read_u32(node, "size", &entry->size);
  33         if (ret)
  34                 return log_msg_ret("bad binman node2", ret);
  35
  36         return 0;
  37 }
  38
  39 int binman_init(void)
  40 {
  41         binman = malloc(sizeof(struct binman_info));
  42         if (!binman)
  43                 return log_msg_ret("space for binman", -ENOMEM);
  44         binman->image = ofnode_path("/binman");
  45         if (!ofnode_valid(binman->image))
  46                 return log_msg_ret("binman node", -EINVAL);
  47
  48         return 0;
  49 }