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 @@ -4,8 +4,17 @@
   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 <asm/global_data.h>
  13 +#include <linux/delay.h>
  14 +
  15 +#ifndef CONFIG_RESET_BUTTON_LABEL
  16 +#define CONFIG_RESET_BUTTON_LABEL "reset"
  17 +#endif
  18
  19  DECLARE_GLOBAL_DATA_PTR;
  20
  21 @@ -41,3 +50,25 @@ int mmc_get_env_dev(void)
  22         return mmc_get_boot_dev();
  23  }
  24  #endif
  25 +
  26 +int board_late_init(void)
  27 +{
  28 +       struct udevice *dev;
  29 +
  30 +       if (!button_get_by_label(CONFIG_RESET_BUTTON_LABEL, &dev)) {
  31 +               puts("reset button found\n");
  32 +#ifdef CONFIG_RESET_BUTTON_SETTLE_DELAY
  33 +               if (CONFIG_RESET_BUTTON_SETTLE_DELAY > 0) {
  34 +                       button_get_state(dev);
  35 +                       mdelay(CONFIG_RESET_BUTTON_SETTLE_DELAY);
  36 +               }
  37 +#endif
  38 +               if (button_get_state(dev) == BUTTON_ON) {
  39 +                       puts("button pushed, resetting environment\n");
  40 +                       gd->env_valid = ENV_INVALID;
  41 +               }
  42 +       }
  43 +
  44 +       env_relocate();
  45 +       return 0;
  46 +}