GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/drivers/bootcount/bootcount_env.c

@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2013
+ * Heiko Schocher, DENX Software Engineering, hs@denx.de.
+ */
+
+#include <common.h>
+#include <env.h>
+
+void bootcount_store(ulong a)
+{
+	int upgrade_available = env_get_ulong("upgrade_available", 10, 0);
+
+	if (upgrade_available) {
+		env_set_ulong("bootcount", a);
+		env_save();
+	}
+}
+
+ulong bootcount_load(void)
+{
+	int upgrade_available = env_get_ulong("upgrade_available", 10, 0);
+	ulong val = 0;
+
+	if (upgrade_available)
+		val = env_get_ulong("bootcount", 10, 0);
+
+	return val;
+}