20eee0d6cb
Allow resetting environment to default values when defined button exists in device tree. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
41 lines
972 B
Diff
41 lines
972 B
Diff
--- a/board/mediatek/mt7986/mt7986_rfb.c
|
|
+++ b/board/mediatek/mt7986/mt7986_rfb.c
|
|
@@ -6,9 +6,16 @@
|
|
|
|
#include <common.h>
|
|
#include <config.h>
|
|
+#include <dm.h>
|
|
+#include <button.h>
|
|
#include <env.h>
|
|
#include <init.h>
|
|
#include <asm/global_data.h>
|
|
+#include <linux/delay.h>
|
|
+
|
|
+#ifndef CONFIG_RESET_BUTTON_LABEL
|
|
+#define CONFIG_RESET_BUTTON_LABEL "reset"
|
|
+#endif
|
|
|
|
#include <mtd.h>
|
|
#include <linux/mtd/mtd.h>
|
|
@@ -25,7 +32,19 @@ int board_init(void)
|
|
|
|
int board_late_init(void)
|
|
{
|
|
- gd->env_valid = 1; //to load environment variable from persistent store
|
|
+ struct udevice *dev;
|
|
+
|
|
+ gd->env_valid = ENV_VALID;
|
|
+ if (!button_get_by_label(CONFIG_RESET_BUTTON_LABEL, &dev)) {
|
|
+ puts("reset button found\n");
|
|
+#ifdef CONFIG_RESET_BUTTON_SETTLE_DELAY
|
|
+ mdelay(CONFIG_RESET_BUTTON_SETTLE_DELAY);
|
|
+#endif
|
|
+ if (button_get_state(dev) == BUTTON_ON) {
|
|
+ puts("button pushed, resetting environment\n");
|
|
+ gd->env_valid = ENV_INVALID;
|
|
+ }
|
|
+ }
|
|
env_relocate();
|
|
return 0;
|
|
}
|