openwrt/package/boot/uboot-mediatek/patches/303-mt7986-generic-reset-button-ignore-env.patch
Daniel Golle 42eeb22450 uboot-mediatek: fix factory/reset button
U-Boot commit ea6fdc13595 ("dm: button: add support for linux_code in
button-gpio.c driver") makes it mandatory to specify linux,code for all
buttons. As that broke handling of the reset button in U-Boot with the
update to U-Boot 2023.04, add linux,code for all butons.

Reported-by: @DragonBluep
Fixes: 50f7c5af4a ("uboot-mediatek: update to v2023.04")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2023-04-20 11:40:24 +01:00

44 lines
1.0 KiB
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>
@@ -24,7 +31,22 @@ 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
+ if (CONFIG_RESET_BUTTON_SETTLE_DELAY > 0) {
+ button_get_state(dev);
+ 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;
}