Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / drivers / bootcount / bootcount_env.c

diff --git a/qemu/roms/u-boot/drivers/bootcount/bootcount_env.c b/qemu/roms/u-boot/drivers/bootcount/bootcount_env.c
new file mode 100644 (file)
index 0000000..2d6e8db
--- /dev/null
+++ b/qemu/roms/u-boot/drivers/bootcount/bootcount_env.c
@@ -0,0 +1,29 @@
+/*
+ * (C) Copyright 2013
+ * Heiko Schocher, DENX Software Engineering, hs@denx.de.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+
+void bootcount_store(ulong a)
+{
+       int upgrade_available = getenv_ulong("upgrade_available", 10, 0);
+
+       if (upgrade_available) {
+               setenv_ulong("bootcount", a);
+               saveenv();
+       }
+}
+
+ulong bootcount_load(void)
+{
+       int upgrade_available = getenv_ulong("upgrade_available", 10, 0);
+       ulong val = 0;
+
+       if (upgrade_available)
+               val = getenv_ulong("bootcount", 10, 0);
+
+       return val;
+}