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| author | Daniel Golle <daniel@makrotopia.org> | 2022-07-17 21:42:05 +0100 |
|---|---|---|
| committer | Daniel Golle <daniel@makrotopia.org> | 2022-08-28 20:33:15 +0100 |
| commit | 20eee0d6cb669abcaa9fba8710d47eba1e44c656 (patch) | |
| tree | 0bbce21ab8fd7e158dcfd8466f4ddab019a4019a | |
| parent | 85581cc89a0a4db8df0675458ef54534fdd65e1f (diff) | |
| download | upstream-20eee0d6cb669abcaa9fba8710d47eba1e44c656.tar.gz upstream-20eee0d6cb669abcaa9fba8710d47eba1e44c656.tar.bz2 upstream-20eee0d6cb669abcaa9fba8710d47eba1e44c656.zip | |
uboot-mediatek: mt7986: add generic reset button support
Allow resetting environment to default values when defined button
exists in device tree.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
| -rw-r--r-- | package/boot/uboot-mediatek/patches/303-mt7986-generic-reset-button-ignore-env.patch | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/package/boot/uboot-mediatek/patches/303-mt7986-generic-reset-button-ignore-env.patch b/package/boot/uboot-mediatek/patches/303-mt7986-generic-reset-button-ignore-env.patch new file mode 100644 index 0000000000..5011e74257 --- /dev/null +++ b/package/boot/uboot-mediatek/patches/303-mt7986-generic-reset-button-ignore-env.patch @@ -0,0 +1,40 @@ +--- 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; + } |