bootcount: Rewrite autoboot to use wrapper functions from bootcount.h

The code has been refactored to use common wrappers from bootcount.h
header.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Alex Kiernan <alex.kiernan@gmail.com>

common/autoboot.c

@@ -13,6 +13,7 @@
 #include <menu.h>
 #include <post.h>
 #include <u-boot/sha256.h>
+#include <bootcount.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -290,18 +291,8 @@ const char *bootdelay_process(void)
 {
 	char *s;
 	int bootdelay;
-#ifdef CONFIG_BOOTCOUNT_LIMIT
-	unsigned long bootcount = 0;
-	unsigned long bootlimit = 0;
-#endif /* CONFIG_BOOTCOUNT_LIMIT */
-
-#ifdef CONFIG_BOOTCOUNT_LIMIT
-	bootcount = bootcount_load();
-	bootcount++;
-	bootcount_store(bootcount);
-	env_set_ulong("bootcount", bootcount);
-	bootlimit = env_get_ulong("bootlimit", 10, 0);
-#endif /* CONFIG_BOOTCOUNT_LIMIT */
+
+	bootcount_inc();
 
 	s = env_get("bootdelay");
 	bootdelay = s ? (int)simple_strtol(s, NULL, 10) : CONFIG_BOOTDELAY;
@@ -323,13 +314,9 @@ const char *bootdelay_process(void)
 		s = env_get("failbootcmd");
 	} else
 #endif /* CONFIG_POST */
-#ifdef CONFIG_BOOTCOUNT_LIMIT
-	if (bootlimit && (bootcount > bootlimit)) {
-		printf("Warning: Bootlimit (%u) exceeded. Using altbootcmd.\n",
-		       (unsigned)bootlimit);
+	if (bootcount_error())
 		s = env_get("altbootcmd");
-	} else
-#endif /* CONFIG_BOOTCOUNT_LIMIT */
+	else
 		s = env_get("bootcmd");
 
 	process_fdt_options(gd->fdt_blob);