common/board_info.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2
   3 #include <common.h>
   4 #include <dm.h>
   5 #include <init.h>
   6 #include <sysinfo.h>
   7 #include <asm/global_data.h>
   8 #include <linux/libfdt.h>
   9 #include <linux/compiler.h>
  10
  11 DECLARE_GLOBAL_DATA_PTR;
  12
  13 int __weak checkboard(void)
  14 {
  15         return 0;
  16 }
  17
  18 /*
  19  * Check sysinfo for board information. Failing that if the root node of the DTB
  20  * has a "model" property, show it.
  21  *
  22  * Then call checkboard().
  23  */
  24 int __weak show_board_info(void)
  25 {
  26         if (IS_ENABLED(CONFIG_OF_CONTROL)) {
  27                 struct udevice *dev;
  28                 const char *model;
  29                 char str[80];
  30                 int ret = -ENOSYS;
  31
  32                 if (IS_ENABLED(CONFIG_SYSINFO)) {
  33                         /* This might provide more detail */
  34                         ret = uclass_first_device_err(UCLASS_SYSINFO, &dev);
  35                         if (!ret)
  36                                 ret = sysinfo_get_str(dev,
  37                                                       SYSINFO_ID_BOARD_MODEL,
  38                                                       sizeof(str), str);
  39                 }
  40
  41                 /* Fail back to the main 'model' if available */
  42                 if (ret)
  43                         model = fdt_getprop(gd->fdt_blob, 0, "model", NULL);
  44                 else
  45                         model = str;
  46
  47                 if (model)
  48                         printf("Model: %s\n", model);
  49         }
  50
  51         return checkboard();
  52 }