package/boot/uboot-mediatek/patches/302-mt7623-generic-reset-button-ignore-env.patch

   1 --- a/board/mediatek/mt7623/mt7623_rfb.c
   2 +++ b/board/mediatek/mt7623/mt7623_rfb.c
   3 @@ -4,9 +4,18 @@
   4   */
   5
   6  #include <common.h>
   7 +#include <dm.h>
   8 +#include <button.h>
   9 +#include <env.h>
  10 +#include <init.h>
  11  #include <mmc.h>
  12  #include <part.h>
  13  #include <asm/global_data.h>
  14 +#include <linux/delay.h>
  15 +
  16 +#ifndef CONFIG_RESET_BUTTON_LABEL
  17 +#define CONFIG_RESET_BUTTON_LABEL "reset"
  18 +#endif
  19
  20  DECLARE_GLOBAL_DATA_PTR;
  21
  22 @@ -60,3 +69,25 @@ int mmc_get_env_dev(void)
  23         return dev_seq(dev);
  24  }
  25  #endif
  26 +
  27 +int board_late_init(void)
  28 +{
  29 +       struct udevice *dev;
  30 +
  31 +       if (!button_get_by_label(CONFIG_RESET_BUTTON_LABEL, &dev)) {
  32 +               puts("reset button found\n");
  33 +#ifdef CONFIG_RESET_BUTTON_SETTLE_DELAY
  34 +               if (CONFIG_RESET_BUTTON_SETTLE_DELAY > 0) {
  35 +                       button_get_state(dev);
  36 +                       mdelay(CONFIG_RESET_BUTTON_SETTLE_DELAY);
  37 +               }
  38 +#endif
  39 +               if (button_get_state(dev) == BUTTON_ON) {
  40 +                       puts("button pushed, resetting environment\n");
  41 +                       gd->env_valid = ENV_INVALID;
  42 +               }
  43 +       }
  44 +
  45 +       env_relocate();
  46 +       return 0;
  47 +}