@@ -38,3 +38,28 @@ static inline u32 raw_bootcount_load(volatile u32 *addr)
return in_be32(addr);
}
#endif
+
+#ifdef CONFIG_SPL_BOOTCOUNT_LIMIT
+static inline bool bootcount_error(void)
+{
+ unsigned long bootcount = bootcount_load();
+ unsigned long bootlimit = env_get_ulong("bootlimit", 10, 0);
+
+ if (bootlimit && (bootcount >= bootlimit)) {
+ printf("Warning: Bootlimit (%lu) exceeded.\n", bootcount);
+ return true;
+ }
+
+ return false;
+}
+
+static inline void bootcount_inc(void)
+{
+ unsigned long bootcount = bootcount_load();
+
+ bootcount_store(++bootcount);
+}
+#else
+static inline bool bootcount_error(void) { return false; }
+static inline void bootcount_inc(void) {}
+#endif /* CONFIG_SPL_BOOTCOUNT_LIMIT */
Those two functions can be used in either SPL or U-boot proper to provide easy bootcount management. Signed-off-by: Lukasz Majewski <lukma@denx.de> --- include/bootcount.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+)