c06fb25d1f
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44 lines
1.0 KiB
Diff
44 lines
1.0 KiB
Diff
--- a/board/mediatek/mt7986/mt7986_rfb.c
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+++ b/board/mediatek/mt7986/mt7986_rfb.c
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@@ -5,9 +5,16 @@
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*/
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#include <config.h>
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+#include <dm.h>
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+#include <button.h>
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#include <env.h>
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#include <init.h>
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#include <asm/global_data.h>
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+#include <linux/delay.h>
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+
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+#ifndef CONFIG_RESET_BUTTON_LABEL
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+#define CONFIG_RESET_BUTTON_LABEL "reset"
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+#endif
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#include <mtd.h>
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#include <linux/mtd/mtd.h>
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@@ -23,7 +30,22 @@ int board_init(void)
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int board_late_init(void)
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{
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- gd->env_valid = 1; //to load environment variable from persistent store
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+ struct udevice *dev;
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+
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+ gd->env_valid = ENV_VALID;
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+ if (!button_get_by_label(CONFIG_RESET_BUTTON_LABEL, &dev)) {
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+ puts("reset button found\n");
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+#ifdef CONFIG_RESET_BUTTON_SETTLE_DELAY
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+ if (CONFIG_RESET_BUTTON_SETTLE_DELAY > 0) {
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+ button_get_state(dev);
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+ mdelay(CONFIG_RESET_BUTTON_SETTLE_DELAY);
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+ }
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+#endif
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+ if (button_get_state(dev) == BUTTON_ON) {
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+ puts("button pushed, resetting environment\n");
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+ gd->env_valid = ENV_INVALID;
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+ }
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+ }
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env_relocate();
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return 0;
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}
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